Loudspeaker and electronic device

Abstract

The present application provides a loudspeaker and an electronic device. The loudspeaker comprises a support, a first diaphragm, a second diaphragm, a third diaphragm, and a first housing. The support comprises a first surface and a second surface arranged opposingly, the peripheries of the first diaphragm and the second diaphragm are both fixed to the first surface, and the periphery of the third diaphragm is fixed to the second surface. The first housing is provided with a first sound outlet hole and a second sound outlet hole which are spaced apart from each other, part of the first housing is located on the side of the first diaphragm facing away from the third diaphragm and defines a first chamber together with the first diaphragm, and the first chamber is communicated with the first sound outlet hole. Part of the first housing is located on the side of the second diaphragm facing away from the third diaphragm, and defines a second chamber together with the second diaphragm, the second chamber is communicated with the second sound outlet hole, and the second chamber and the first chamber are spaced apart from each other. The first diaphragm, the second diaphragm, and the third diaphragm vibrate in a same direction. The loudspeaker of the present application has a relatively large sound cancellation area, thereby mitigating the problem of sound leakage. The private call effect of the electronic device is good.

Description

Speaker and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202411339859.5, filed on September 24, 2024, and entitled "Speaker and electronic device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of audio technology, and in particular to a speaker and an electronic device. BACKGROUND

[0003] As a commonly used electro-acoustic transducer, a micro speaker is widely used in various electronic devices (such as mobile phones, smart glasses, and other terminals). A same-direction double diaphragm speaker is usually used in mobile phone products. The upper and lower diaphragms of the speaker vibrate in the same direction, and form a dipole when radiating outward. The sound waves radiated by the upper and lower diaphragms will cancel each other out in some areas, which can achieve directional sound emission and achieve the effect of private conversation.

[0004] However, the sound radiation capability of the same-direction double diaphragm speaker is insufficient, the sound cancellation area is small, and the effect of private conversation is poor, which affects the experience. SUMMARY

[0005] The present application provides a speaker and an electronic device comprising the same. The speaker has a large sound cancellation area, thereby improving the problem of sound leakage and achieving a good effect of private conversation of the electronic device comprising the same.

[0006] In a first aspect, the present application provides a speaker. The speaker comprises a support, a first diaphragm, a second diaphragm, and a third diaphragm. The support comprises a first surface and a second surface arranged in opposite directions. The periphery of the first diaphragm and the periphery of the second diaphragm are fixed to different positions of the first surface, and the periphery of the third diaphragm is fixed to the second surface. The speaker further comprises a first housing, which is provided with a first sound outlet and a second sound outlet arranged in a spaced manner. A part of the first housing is located on the side of the first diaphragm opposite to the third diaphragm, and cooperates with the first diaphragm to enclose a first cavity. The first cavity is in communication with the first sound outlet. A part of the first housing is located on the side of the second diaphragm opposite to the third diaphragm, and cooperates with the second diaphragm to enclose a second cavity. The second cavity is in communication with the second sound outlet, and the second cavity is arranged in a spaced manner with the first cavity. The first diaphragm, the second diaphragm, and the third diaphragm vibrate in the same direction.

[0007] It can be understood that, in the embodiment of the present application, the airflow between the second chamber and the first chamber is not communicated. The sound wave generated by the vibration of the first diaphragm can be propagated to the outside of the loudspeaker through the first chamber and the first sound hole, and the sound wave generated by the vibration of the second diaphragm can be propagated to the outside of the loudspeaker through the second chamber and the second sound hole. In this way, the sound wave generated by the second diaphragm and the sound wave generated by the first diaphragm are not easily interfered with each other.

[0008] In the embodiment of the present application, the first diaphragm, the second diaphragm and the third diaphragm can vibrate in the same direction. It can be understood that, the first diaphragm, the second diaphragm and the third diaphragm can move towards the same side of the loudspeaker at the same time, for example, the first diaphragm, the second diaphragm and the third diaphragm can move towards the top side of the loudspeaker at the same time or move towards the bottom side of the loudspeaker at the same time. At this time, the phase of the sound wave generated by the first diaphragm and the second diaphragm is opposite to the phase of the sound wave generated by the third diaphragm, and at least partial cancellation can occur between the sound wave generated by the first diaphragm and the sound wave generated by the third diaphragm, and at least partial cancellation can occur between the sound wave generated by the second diaphragm and the sound wave generated by the third diaphragm, and the sound cancellation area is large, thereby effectively reducing the loudness of the loudspeaker, and facilitating to improve the isolation of the loudspeaker. It can be understood that, the isolation refers to the difference between the sound energy of the bright area and the sound energy of the dark area. The dark area refers to an area where no sound or less sound is desired. The bright area refers to an area where the main sound source is desired to propagate.

[0009] In some embodiments, the amplitude of the first diaphragm and the second diaphragm is the same as the amplitude of the third diaphragm. In this way, the first diaphragm can form a dipole with the third diaphragm, and the second diaphragm can form a dipole with the third diaphragm. At this time, the sound wave generated by the first diaphragm and the sound wave generated by the third diaphragm can be completely cancelled in some areas to form a dark area, and the sound wave generated by the second diaphragm and the sound wave generated by the third diaphragm can be completely cancelled in some areas to form a dark area, and the two dark areas can at least partially overlap, thereby widening the width of the dark area of the loudspeaker and further improving the isolation of the loudspeaker. It can be understood that, the first diaphragm, the second diaphragm and the third diaphragm can form a multipole, and the dark area width of the multipole is greater than the dark area width of the dipole.

[0010] In some embodiments, the loudspeaker further comprises a magnetic circuit assembly, the magnetic circuit assembly has a first magnetic gap and a second magnetic gap arranged in a spaced manner, the first magnetic gap has a first opening and a second opening arranged in a back-to-back manner, and the second magnetic gap has a third opening and a fourth opening arranged in a back-to-back manner;

[0011] The magnetic circuit assembly is fixedly connected to the support, the first opening of the first magnetic gap is arranged opposite to the first diaphragm, and the third opening of the second magnetic gap is arranged opposite to the second diaphragm;

[0012] The loudspeaker further comprises a first voice coil, a second voice coil and a third voice coil, one end of the first voice coil is fixedly connected with the first diaphragm, and the other end of the first voice coil extends into the first magnetic gap through the first opening, one end of the second voice coil is fixedly connected with the second diaphragm, and the other end of the second voice coil extends into the second magnetic gap through the third opening;

[0013] The second opening and the fourth opening are oppositely arranged with the third diaphragm, a part of the third voice coil is fixedly connected with the third diaphragm, a part of the third voice coil extends into the first magnetic gap through the second opening, and a part of the third voice coil extends into the second magnetic gap through the fourth opening.

[0014] In the embodiment, the first voice coil, the second voice coil and the third voice coil can share the same magnetic circuit assembly. In this way, the structure of the loudspeaker is simplified, and the loudspeaker is miniaturized.

[0015] In some embodiments, the loudspeaker further comprises a magnetic circuit assembly, the magnetic circuit assembly has a first magnetic gap and a second magnetic gap arranged at intervals, the first magnetic gap has a first opening and a second opening arranged oppositely, and the second magnetic gap has a third opening and a fourth opening arranged oppositely.

[0016] The magnetic circuit assembly is fixedly connected with the support, the first opening of the first magnetic gap is oppositely arranged with the first diaphragm, and the third opening of the second magnetic gap is oppositely arranged with the second diaphragm.

[0017] The loudspeaker further comprises a first voice coil, a second voice coil and a third voice coil, one end of the first voice coil is fixedly connected with the first diaphragm, and the other end of the first voice coil extends into the first magnetic gap through the first opening, one end of the second voice coil is fixedly connected with the second diaphragm, and the other end of the second voice coil extends into the second magnetic gap through the third opening;

[0018] The second opening is oppositely arranged with the third diaphragm, one end of the third voice coil is fixedly connected with the third diaphragm, and the other end of the third voice coil extends into the first magnetic gap through the second opening.

[0019] In the embodiment, the first voice coil, the second voice coil and the third voice coil can share the same magnetic circuit assembly. In this way, the structure of the loudspeaker is simplified, and the loudspeaker is miniaturized.

[0020] In some embodiments, the magnetic circuit assembly comprises an inner magnetic part and an outer magnetic part; the inner magnetic part comprises a first magnetic piece, a second magnetic piece and a third magnetic piece, the first magnetic piece, the second magnetic piece and the third magnetic piece are arranged at intervals in sequence, a part of the first magnetic gap is formed between the first magnetic piece and the second magnetic piece, and a part of the second magnetic gap is formed between the second magnetic piece and the third magnetic piece.

[0021] The outer magnetic part is arranged around the first magnetic piece, the second magnetic piece and the third magnetic piece, a part of the first magnetic gap is formed between the outer magnetic part and the first magnetic piece, and a part of the second magnetic gap is formed between a part of the outer magnetic part and the third magnetic piece.

[0022] In some embodiments, the outer magnetic part comprises a fourth magnetic piece, a fifth magnetic piece, a sixth magnetic piece and a seventh magnetic piece which are arranged at intervals, and the fourth magnetic piece, the fifth magnetic piece, the sixth magnetic piece and the seventh magnetic piece are arranged around the first magnetic piece, the second magnetic piece and the third magnetic piece;

[0023] The fourth magnetic piece and the fifth magnetic piece are respectively located on the opposite sides of the first magnetic piece, the second magnetic piece and the third magnetic piece, a part of the fourth magnetic piece is arranged opposite to the first magnetic piece and forms a part of the first magnetic gap with the first magnetic piece, a part of the fourth magnetic piece is arranged opposite to the third magnetic piece and forms a part of the second magnetic gap with the third magnetic piece, a part of the fifth magnetic piece is arranged opposite to the first magnetic piece and forms a part of the first magnetic gap with the first magnetic piece, and a part of the fifth magnetic piece is arranged opposite to the third magnetic piece and forms a part of the second magnetic gap with the third magnetic piece.

[0024] The sixth magnetic piece and the seventh magnetic piece are respectively located on the opposite sides of the first magnetic piece, the second magnetic piece and the third magnetic piece, the sixth magnetic piece is arranged opposite to the first magnetic piece and forms a part of the first magnetic gap with the first magnetic piece, and the seventh magnetic piece is arranged opposite to the third magnetic piece and forms a part of the second magnetic gap with the third magnetic piece.

[0025] It can be understood that in the present embodiment, the fourth magnetic piece, the fifth magnetic piece, the sixth magnetic piece and the seventh magnetic piece are arranged at intervals. At this time, the space between the fourth magnetic piece and the sixth magnetic piece and the seventh magnetic piece, and the space between the fifth magnetic piece and the sixth magnetic piece and the seventh magnetic piece can be in communication with the avoiding area of the second magnetic conducting piece. The space between the fourth magnetic piece and the sixth magnetic piece and the seventh magnetic piece, and the space between the fifth magnetic piece and the sixth magnetic piece and the seventh magnetic piece can also be used to arrange other components of the loudspeaker, which is conducive to improving the structural compactness of the loudspeaker, thereby facilitating the miniaturization of the loudspeaker.

[0026] In some embodiments, the fourth magnetic piece and the second magnetic piece are arranged at intervals and have the same magnetic pole at the opposite position. In this way, there can be an air partition between the fourth magnetic piece and the second magnetic piece, thereby increasing the magnetic resistance between the fourth magnetic piece and the second magnetic piece, and preventing the magnetic fields of the fourth magnetic piece and the second magnetic piece from being mutually offset and weakening the magnetic field. It can be understood that in the present embodiment, by arranging the fourth magnetic piece and the second magnetic piece at intervals, an air partition can be formed between the multiple components with the same magnetism, thereby increasing the magnetic resistance between the multiple components with the same magnetism, and preventing the magnetic fields of the multiple components with the same magnetism from being mutually offset and weakening the magnetic field.

[0027] In some embodiments, the fifth magnetic member is spaced apart from the second magnetic member, and the fifth magnetic member has the same magnetic pole as the position opposite to the second magnetic member. In this way, the fifth magnetic member and the second magnetic member can be separated by air, so as to increase the magnetic resistance between the fifth magnetic member and the second magnetic member, and prevent the magnetic fields of the fifth magnetic member and the second magnetic member from being cancelled out and weakened. It can be understood that, in the present embodiment, the fifth magnetic member is spaced apart from the second magnetic member, so that the multiple components with the same magnetic property can be separated by air, so as to increase the magnetic resistance between the multiple components with the same magnetic property, and prevent the magnetic fields of the multiple components with the same magnetic property from being cancelled out and weakened.

[0028] In some embodiments, the magnetic circuit assembly further comprises a first magnetic conducting member, the first magnetic conducting member comprises a main body portion and a first connecting portion, the first connecting portion is connected to the main body portion and is arranged at an angle with the main body portion; the main body portion is fixedly connected to the first magnetic member, the second magnetic member and the third magnetic member, and is located at the side of the first magnetic member, the second magnetic member and the third magnetic member close to the third diaphragm; and the first connecting portion is located between the first magnetic member, the second magnetic member, the third magnetic member and the fourth magnetic member.

[0029] In the present embodiment, the first magnetic conducting member can change the magnetic field distribution of the magnetic circuit assembly, so that the magnetic field of the magnetic circuit assembly can be concentrated in the magnetic gap, and the magnetic field strength in the magnetic gap is enhanced.

[0030] In some embodiments, the main body portion and / or the first connecting portion is provided with a first through slot, the first through slot penetrates through the main body portion and / or the first connecting portion, and the first through slot is located between the second magnetic member and the first connecting portion.

[0031] In the present embodiment, by providing the first through slot, the part of the main body portion of the first magnetic conducting member corresponding to the second magnetic member and the first connecting portion can be separated by air, so as to increase the magnetic resistance between the part of the main body portion of the first magnetic conducting member corresponding to the second magnetic member and the first connecting portion, and prevent the magnetic fields of the part of the main body portion of the first magnetic conducting member corresponding to the second magnetic member and the first connecting portion from being cancelled out and weakened. In this way, the magnetic fields in the first magnetic gap and the second magnetic gap of the magnetic circuit assembly are strong, so as to enhance the magnetic driving effect of the first voice coil arranged in the first magnetic gap and the second voice coil arranged in the second magnetic gap, that is, to enhance the driving force of the first voice coil and the second voice coil. When the third voice coil, the first voice coil and the second voice coil vibrate at the same time, the balance between the vibration assemblies is good, and the output of the first voice coil and the second voice coil can be prevented from being inhibited due to the too large difference in driving force, so that the first voice coil and the second voice coil are not easily interfered by the third voice coil, and the vibration effect of the first diaphragm and the second diaphragm is improved.

[0032] In some embodiments, the first magnetic conducting member further comprises a second connecting portion, the second connecting portion is connected to the main body portion and is arranged at an angle with the main body portion, the second connecting portion is arranged opposite to and spaced apart from the first connecting portion; the first connecting portion is located between the first magnetic member, the second magnetic member, the third magnetic member and the fifth magnetic member; the main body portion and / or the second connecting portion is further provided with a second through slot, the second through slot penetrates through the main body portion, and the second through slot is located between the second magnetic member and the second connecting portion.

[0033] It can be understood that, by arranging the second through slot, the part of the main body portion of the first magnetic conducting member corresponding to the second magnetic member and the second connecting portion can be separated by air, so as to increase the magnetic resistance between the part of the main body portion of the first magnetic conducting member corresponding to the second magnetic member and the second connecting portion, prevent the magnetic fields between the part of the main body portion of the first magnetic conducting member corresponding to the second magnetic member and the second connecting portion from being mutually cancelled to cause weakening of the magnetic fields, and thus avoid the output of the first voice coil and the second voice coil from being inhibited, so that the first voice coil and the second voice coil are not easily interfered by the third voice coil, and the vibration effect of the first diaphragm and the second diaphragm is improved.

[0034] In some embodiments, the magnetic circuit assembly further comprises a first magnetic conducting member, the first magnetic conducting member comprises a first main body portion, a second main body portion, a third main body portion, a second connecting portion and a third connecting portion; the first main body portion, the second main body portion and the third main body portion are arranged in sequence, the first main body portion is fixedly connected to the first magnetic member and is located on the side of the first magnetic member close to the third diaphragm, the second main body portion is fixedly connected to the second magnetic member and is located on the side of the second magnetic member away from the third diaphragm, and the third main body portion is fixedly connected to the third magnetic member and is located on the side of the third magnetic member close to the third diaphragm; the second connecting portion is connected between the first main body portion and the second main body portion, at least part of the second connecting portion is located between the first magnetic member and the second magnetic member, and the third connecting portion is connected between the second main body portion and the third main body portion, at least part of the third connecting portion is located between the second magnetic member and the third magnetic member.

[0035] In the present embodiment, the first magnetic conducting member can change the magnetic field distribution of the magnetic circuit assembly, so that the magnetic field of the magnetic circuit assembly can be concentrated in the magnetic gap, and the magnetic field strength in the magnetic gap is enhanced.

[0036] In some embodiments, the second main body portion, the second connecting portion and the third main body portion are arranged spaced apart from the fourth magnetic member. In this way, the first connecting portion, the second connecting portion and the fourth magnetic member can be separated by air, and mutual cancellation of the magnetic fields between the first connecting portion, the second connecting portion and the fourth magnetic member can be prevented to cause weakening of the magnetic fields.

[0037] In some embodiments, the second main body part, the second connecting part and the third main body part are all spaced apart from the fifth magnetic member. In this way, the first connecting part, the second connecting part and the fifth magnetic member can be separated by air, and mutual cancellation of the magnetic fields of the first connecting part, the second connecting part and the fifth magnetic member can be prevented.

[0038] In some embodiments, the number of the third voice coil is one, one end of the third voice coil is fixedly connected to the third diaphragm, and the other end of the third voice coil extends into the first magnetic gap through the second opening and extends into the second magnetic gap through the fourth opening. It can be understood that the third diaphragm can be driven by one voice coil, which is simple in structure and is conducive to simplifying the structure of the loudspeaker.

[0039] In some embodiments, the third voice coil includes a first sub-voice coil and a second sub-voice coil which are spaced apart, one end of the first sub-voice coil is fixedly connected to the third diaphragm, and the other end of the first sub-voice coil extends out of the first magnetic gap through the second opening, one end of the second sub-voice coil is fixedly connected to the third diaphragm, and the other end of the second sub-voice coil extends out of the second magnetic gap through the fourth opening.

[0040] In the present embodiment, the first sub-voice coil and the second sub-voice coil are arranged to drive the third diaphragm together, which can make the arrangement of the first voice coil, the second voice coil, the first sub-voice coil and the second sub-voice coil more flexible. On the other hand, the first sub-voice coil and the second sub-voice coil can further improve the vibration performance of the third vibration assembly and effectively suppress the segmented vibration.

[0041] In some embodiments, a projection of the first voice coil in a first plane along a first direction is a first projection, a projection of the second voice coil in the first plane along the first direction is a second projection, and a projection of the third voice coil in the first plane along the first direction is a third projection, the first projection and the second projection are spaced apart from the third projection; the first direction is parallel to the direction of the first diaphragm to the third diaphragm, and the first plane is perpendicular to the first direction.

[0042] In the present embodiment, when the first voice coil, the second voice coil and the third voice coil vibrate along the first direction, the first voice coil and the third voice coil are not easy to interfere with each other, and the second voice coil and the third voice coil are not easy to interfere with each other, so that the vibration of the first diaphragm, the second diaphragm and the third diaphragm can be avoided due to the mutual interference between the first voice coil, the second voice coil and the third voice coil, and the first voice coil, the second voice coil and the third voice coil can also be prevented from being damaged due to collision.

[0043] In some embodiments, the loudspeaker further comprises a second shell, at least a part of the second shell is located on a side of the third diaphragm away from the first diaphragm and the second diaphragm, and at least a part of the second shell cooperates with the third diaphragm to form a third cavity; the second shell is provided with a third sound hole, the third sound hole is in communication with the third cavity, and the third sound hole is spaced apart from the first sound hole and the second sound hole.

[0044] In the present embodiment, the third cavity can be in communication with the outside of the loudspeaker through the third sound hole. The sound waves generated by the vibration of the third diaphragm can propagate to the outside of the loudspeaker through the third cavity and the third sound hole. When the first diaphragm, the second diaphragm and the third diaphragm vibrate in the same direction, the sound waves generated by the third diaphragm can be cancelled with the sound waves generated by the first diaphragm and the second diaphragm in the outside of the loudspeaker.

[0045] In some embodiments, the loudspeaker further comprises a fourth diaphragm, a periphery of the fourth diaphragm is connected to the second surface of the support; the loudspeaker further comprises a second shell, a part of the second shell is located on a side of the third diaphragm away from the first diaphragm, a part of the second shell cooperates with the third diaphragm to form a third cavity, a part of the second shell is located on a side of the fourth diaphragm away from the second diaphragm, a part of the second shell cooperates with the fourth diaphragm to form a fourth cavity, and the fourth cavity is spaced apart from the third cavity; the second shell is provided with a third sound hole and a fourth sound hole which are spaced apart, the third sound hole is in communication with the third cavity, the fourth sound hole is in communication with the fourth cavity, the third sound hole is spaced apart from the first sound hole and the second sound hole, and the fourth sound hole is spaced apart from the first sound hole and the second sound hole; the fourth diaphragm vibrates in the same direction as the first diaphragm. It can be understood that, in the present embodiment, the airflow is not communicated between the third cavity and the fourth cavity. The sound waves generated by the vibration of the third diaphragm can propagate to the outside of the loudspeaker through the third cavity and the third sound hole, and the sound waves generated by the vibration of the fourth diaphragm can propagate to the outside of the loudspeaker through the fourth cavity and the fourth sound hole. In this way, the sound waves generated by the fourth diaphragm are not easily interfered with the sound waves generated by the third diaphragm.

[0046] In the present embodiment, the first diaphragm, the second diaphragm, the third diaphragm and the fourth diaphragm can vibrate in the same direction. At this time, the phase of the sound waves generated by the third diaphragm is opposite to the phase of the sound waves generated by the first diaphragm and the second diaphragm, and at least partial cancellation can occur between the sound waves generated by the third diaphragm and the sound waves generated by the first diaphragm and the second diaphragm; the phase of the sound waves generated by the fourth diaphragm is opposite to the phase of the sound waves generated by the first diaphragm and the second diaphragm, and at least partial cancellation can also occur between the sound waves generated by the fourth diaphragm and the sound waves generated by the first diaphragm and the second diaphragm. The sound cancellation area is large, thereby further reducing the loudness of the loudspeaker and facilitating the further improvement of the isolation of the loudspeaker.

[0047] In some embodiments, the amplitude of the fourth diaphragm is the same as the amplitude of the first diaphragm and the second diaphragm. At this time, the third diaphragm can form a dipole with the first diaphragm and the second diaphragm respectively, and the fourth diaphragm can form a dipole with the first diaphragm and the second diaphragm respectively. At this time, the sound waves generated by the third diaphragm and the sound waves generated by the first diaphragm can be completely cancelled in some areas to form a dark area, the sound waves generated by the third diaphragm and the sound waves generated by the second diaphragm can be completely cancelled in some areas to form a dark area, the sound waves generated by the fourth diaphragm and the sound waves generated by the first diaphragm can be completely cancelled in some areas to form a dark area, and the sound waves generated by the fourth diaphragm and the sound waves generated by the second diaphragm can be completely cancelled in some areas to form a dark area, and the four dark areas can at least partially overlap, that is, a multipole can be formed between the first diaphragm, the second diaphragm, the third diaphragm and the fourth diaphragm, so as to further widen the width of the dark area of the loudspeaker, and to further improve the isolation of the loudspeaker.

[0048] In some embodiments, the loudspeaker further comprises a fourth voice coil, the fourth voice coil is arranged in space with the third voice coil, the fourth opening is arranged opposite to the fourth diaphragm, one end of the fourth voice coil is fixedly connected to the fourth diaphragm, and the other end of the fourth voice coil extends into the second magnetic gap through the fourth opening.

[0049] In the present embodiment, the first voice coil, the second voice coil, the third voice coil and the fourth voice coil can share the same magnetic circuit assembly. In this way, it is beneficial to simplify the structure of the loudspeaker, and at the same time, it is beneficial to the miniaturization of the loudspeaker.

[0050] In some embodiments, the projection of the first voice coil in a first plane along a first direction is a first projection, the projection of the second voice coil in the first plane along the first direction is a second projection, the projection of the third voice coil in the first plane along the first direction is a third projection, and the projection of the fourth voice coil in the first plane along the first direction is a fourth projection, and the first projection, the second projection, the third projection and the fourth projection are arranged in space; the first direction is parallel to the direction from the first diaphragm to the third diaphragm, and the first plane is perpendicular to the first direction.

[0051] In the present embodiment, when the first voice coil, the second voice coil, the third voice coil and the fourth voice coil vibrate along the first direction, the first voice coil and the third voice coil are not easy to interfere with each other, and the second voice coil and the fourth voice coil are not easy to interfere with each other, so as to avoid affecting the vibration of the first diaphragm, the second diaphragm and the third diaphragm due to the mutual interference between the first voice coil and the third voice coil and the mutual interference between the second voice coil and the fourth voice coil, and also to avoid damage due to collision between the first voice coil and the third voice coil and between the second voice coil and the fourth voice coil.

[0052] In some embodiments, the arrangement direction of the first diaphragm and the third diaphragm is parallel to the first direction, the arrangement direction of the first diaphragm and the second diaphragm is parallel to the second direction, and the second direction intersects the first direction.

[0053] In the embodiment, by arranging the first diaphragm and the second diaphragm along the second direction, the first housing is facilitated to form the first chamber and the second chamber which are arranged in a spaced manner with the first diaphragm and the second diaphragm respectively, thereby facilitating to simplify the structure of the loudspeaker.

[0054] In some embodiments, the loudspeaker further comprises a first conductive branch, the first conductive branch comprising a first part and a second part, the second part of the first conductive branch being connected to the first part of the first conductive branch, the first part of the first conductive branch being connected to the first voice coil and the bracket and being in electrical conduction with the first voice coil, and the second part of the first conductive branch being connected to the second voice coil and the bracket and being in electrical conduction with the second voice coil.

[0055] In the embodiment, the first part and the second part of the first conductive branch can be connected to an external power supply to supply power to the first voice coil and the second voice coil respectively. When the first voice coil is powered, the first voice coil generates a force in the magnetic field of the magnetic circuit assembly, thereby pushing the first diaphragm to vibrate, and the first diaphragm pushes the air to vibrate to realize sound emission of the loudspeaker. When the second voice coil is powered, the second voice coil generates a force in the magnetic field of the magnetic circuit assembly, thereby pushing the first diaphragm to vibrate, and the first diaphragm pushes the air to vibrate to realize sound emission of the loudspeaker.

[0056] In some embodiments, the loudspeaker further comprises a second conductive branch, the second conductive branch being connected to the third voice coil and the bracket and being in electrical conduction with the third voice coil. In the embodiment, the first sub-branch and the second sub-branch of the second conductive branch can be connected to an external power supply, so that the second conductive branch can supply power to the third voice coil. When the third voice coil is powered, the third voice coil generates a force in the magnetic field of the magnetic circuit assembly, thereby pushing the third diaphragm to vibrate, and the third diaphragm pushes the air to vibrate to realize sound emission of the loudspeaker.

[0057] In the second aspect, the embodiments of the present application provide an electronic device. The electronic device comprises a shell and a loudspeaker as described above, the loudspeaker being mounted to the shell; the shell is provided with a first through hole, a second through hole and a third through hole which are arranged in a spaced manner, the first through hole is in communication with the first sound hole and the outside of the electronic device, the second through hole is in communication with the second sound hole and the outside of the electronic device, and the third through hole is in communication with the space on the side of the third diaphragm which is opposite to the first diaphragm and the second diaphragm and the outside of the electronic device.

[0058] In the embodiments of the present application, the sound waves generated by the first diaphragm of the loudspeaker can be propagated from the first through hole to the outside of the electronic device, the sound waves generated by the second diaphragm can be propagated from the second through hole to the outside of the electronic device, and the sound waves generated by the third diaphragm can be propagated from the third through hole to the outside of the electronic device, and the sound waves generated by the first diaphragm and the second diaphragm are not likely to interfere with each other.

[0059] In the embodiment of the present application, the first diaphragm, the second diaphragm and the third diaphragm can vibrate in the same direction. At this time, the sound waves generated by the first diaphragm and the sound waves generated by the third diaphragm can be at least partially canceled outside the electronic device, and the sound waves generated by the second diaphragm and the sound waves generated by the third diaphragm can also be at least partially canceled outside the electronic device. The sound cancellation area is large, so the loudness of the speaker can be effectively reduced, and the isolation of the speaker can be improved. In this way, the risk of far-field sound leakage of the electronic device can be reduced, and the call privacy effect of the electronic device can be improved.

[0060] In a third aspect, an embodiment of the present application provides an electronic device. The electronic device includes a shell and a speaker, the speaker is mounted on the shell; the speaker includes a support, a first diaphragm, a second diaphragm and a third diaphragm; the support includes a first surface and a second surface arranged in opposite directions, the periphery of the first diaphragm and the periphery of the second diaphragm are fixed to the first surface, and the periphery of the third diaphragm is fixed to the second surface; a part of the shell and the first diaphragm jointly enclose a first sound outlet channel, a part of the shell and the second diaphragm jointly enclose a second sound outlet channel, and a part of the shell and the third diaphragm jointly enclose a third sound outlet channel; the first sound outlet channel, the second sound outlet channel and the third sound outlet channel are arranged in a spaced manner and are respectively in communication with the outside of the electronic device; and the first diaphragm, the second diaphragm and the third diaphragm vibrate in the same direction.

[0061] In the embodiment of the present application, the sound waves generated by the first diaphragm of the speaker can propagate from the first sound outlet channel to the outside of the electronic device, the sound waves generated by the second diaphragm can propagate from the second sound outlet channel to the outside of the electronic device, and the sound waves generated by the third diaphragm can propagate from the third sound outlet channel to the outside of the electronic device, and the sound waves generated by the first diaphragm and the second diaphragm are not easily interfered with each other.

[0062] In the embodiment of the present application, the first diaphragm, the second diaphragm and the third diaphragm can vibrate in the same direction. At this time, the sound waves generated by the first diaphragm and the sound waves generated by the third diaphragm can be at least partially canceled outside the electronic device, and the sound waves generated by the second diaphragm and the sound waves generated by the third diaphragm can also be at least partially canceled outside the electronic device. The sound cancellation area is large, so the loudness of the speaker can be effectively reduced, and the isolation of the speaker can be improved. In this way, the risk of far-field sound leakage of the electronic device can be reduced, and the call privacy effect of the electronic device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0063] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings needed to be used in the embodiments of the present application or the background art will be described below.

[0064] FIG. 1 is a structural schematic diagram of an electronic device according to an embodiment of the present application;

[0065] Fig. 2 is a structural schematic diagram of the loudspeaker shown in Fig. 1 in some embodiments;

[0066] Fig. 3 is a partial structural exploded view of the loudspeaker shown in Fig. 2 in some embodiments;

[0067] Fig. 4 is a structural schematic diagram of the magnetic circuit assembly shown in Fig. 3 in some embodiments;

[0068] Fig. 5 is a partial structural exploded view of the magnetic circuit assembly shown in Fig. 4 in some embodiments;

[0069] Fig. 6 is a structural schematic diagram of the first magnetic conductive member shown in Fig. 5 from another angle in some embodiments;

[0070] Fig. 7A is a top view of the magnetic circuit assembly shown in Fig. 4 in some embodiments;

[0071] Fig. 7B is a partial cross-sectional structural schematic diagram of the magnetic circuit assembly shown in Fig. 7A along A-A in some embodiments;

[0072] Fig. 7C is a partial cross-sectional structural schematic diagram of the magnetic circuit assembly shown in Fig. 7A along B1-B1 in some embodiments;

[0073] Fig. 7D is a partial cross-sectional structural schematic diagram of the magnetic circuit assembly shown in Fig. 7A along B2-B2 in some embodiments;

[0074] Fig. 7E is a partial cross-sectional structural schematic diagram of the magnetic circuit assembly shown in Fig. 7A along C-C in some embodiments;

[0075] Fig. 8A is a structural schematic diagram of the upper support shown in Fig. 3 in some embodiments;

[0076] Fig. 8B is a structural schematic diagram of the upper support shown in Fig. 8A from another angle in some embodiments;

[0077] Fig. 9 is a structural schematic diagram of the lower support shown in Fig. 3 in some embodiments;

[0078] Fig. 10A is a partial structural schematic diagram of the loudspeaker shown in Fig. 2 in some embodiments;

[0079] Fig. 10B is a structural schematic diagram of the partial structure of the loudspeaker shown in Fig. 10A from another angle in some embodiments;

[0080] Fig. 11 is a partial cross-sectional schematic diagram of the loudspeaker shown in Fig. 10A along D-D in some embodiments;

[0081] Fig. 12 is a partial structural schematic diagram of the loudspeaker shown in Fig. 2 in some embodiments;

[0082] Fig. 13 is a partial structural schematic diagram of the loudspeaker shown in Fig. 2 in some embodiments;

[0083] Fig. 14A is a partial cross-sectional view of the loudspeaker shown in Fig. 13, taken along E-E in some embodiments;

[0084] Fig. 14B is a partial cross-sectional view of the loudspeaker shown in Fig. 13, taken along F-F in some embodiments;

[0085] Fig. 15 is a partial structural view of the loudspeaker shown in Fig. 2 in some embodiments;

[0086] Fig. 16A is a structural view of the first housing shown in Fig. 3 in some embodiments;

[0087] Fig. 16B is a structural view of the first housing shown in Fig. 16A from another angle;

[0088] Fig. 17 is a partial structural exploded view of the first housing shown in Fig. 3 in some embodiments;

[0089] Fig. 18A is a partial cross-sectional structural view of the loudspeaker shown in Fig. 2, taken along G-G in some embodiments;

[0090] Fig. 18B is a partial cross-sectional structural view of the loudspeaker shown in Fig. 2, taken along H-H in some embodiments;

[0091] Fig. 19 is a structural view of the loudspeaker shown in Fig. 2 from another angle;

[0092] Fig. 20A is a dipole acoustic radiation pattern formed by a conventional dual-diaphragm loudspeaker;

[0093] Fig. 20B is a multipole acoustic radiation pattern formed by the loudspeaker provided in the present application;

[0094] Fig. 21 is a partial structural exploded view of the loudspeaker shown in Fig. 2 in further embodiments;

[0095] Fig. 22 is a structural view of the magnetic circuit assembly shown in Fig. 21 in some embodiments;

[0096] Fig. 23 is a partial structural exploded view of the magnetic circuit assembly shown in Fig. 22 in some embodiments;

[0097] Fig. 24 is a partial cross-sectional structural view of the magnetic circuit assembly shown in Fig. 22, taken along J-J in some embodiments;

[0098] Fig. 25 is a structural view of the loudspeaker shown in Fig. 2 in further embodiments from another angle;

[0099] Fig. 26 is a partial structural view of the loudspeaker shown in Fig. 2, taken along G-G in further embodiments;

[0100] Fig. 27 is a partially exploded view of the speaker shown in Fig. 2 in some embodiments;

[0101] Fig. 28 is a partially exploded view of the speaker shown in Fig. 2 along G-G in some embodiments;

[0102] Fig. 29 is a partially exploded view of the electronic device shown in Fig. 1 along K-K in some embodiments;

[0103] Fig. 30 is a partially exploded view of the electronic device shown in Fig. 1 along K-K in some embodiments. DETAILED DESCRIPTION

[0104] The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0105] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms “mounting”, “connecting” should be understood in a broad sense, for example, “connecting” can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through an intermediate medium. Among them, “fixed connection” refers to the relative positional relationship after being connected to each other does not change. “Rotary connection” refers to the relative rotation after being connected to each other. The orientation terms mentioned in the embodiments of the present application, such as “upper”, “lower”, “top”, “bottom”, “inner”, “outer” and the like, are only the direction of the accompanying drawings, therefore, the orientation terms used are for better, clearer illustration and understanding of the embodiments of the present application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application. In the embodiments of the present application, the terms “first”, “second”, “third”, “fourth”, “fifth”, “sixth”, “seventh” and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by “first”, “second”, “third”, “fourth”, “fifth”, “sixth”, “seventh” and the like can explicitly or implicitly include one or more of the features. The term “multiple” means at least two.

[0106] In the embodiments of the present application, “and / or” is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character “ / ” herein generally represents that the front and rear associated objects have an “or” relationship.

[0107] Reference being made to "some embodiments" and the like in the present description means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in some embodiments" in various places in the specification are not necessarily all referring to the same embodiment, however, and can refer to different embodiments.

[0108] The terms "including", "containing", "having" and the like are used herein to mean "including but not limited to", unless otherwise expressly specified. It is to be understood that the specific embodiments described herein are meant to be illustrative only and not limiting as to the scope of the application. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0109] In the embodiments of the present application, the terms "parallel", "perpendicular" and the like are defined in relation to the current process level, rather than the absolute strict definition in the mathematical sense, and a small amount of deviation is allowed, and approximate parallel, approximate perpendicular and the like are also allowed. For example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B can be between 0° and 10°. For example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B can be between 80° and 100°.

[0110] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0111] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0112] Please refer to FIG. 1, which is a structural schematic diagram of an electronic device 100 provided by an embodiment of the present application.

[0113] In some embodiments, the electronic device 100 can be a mobile phone, a tablet computer, augmented reality (AR) glasses, AR helmet or virtual reality (VR) glasses, a point-and-read pen, a bracelet, a smart watch and the like electronic device 100 which needs to output audio by using the loudspeaker 30. The present application takes the mobile phone as an example for description. Of course, other types of electronic devices 100 can also adopt similar structures, which will not be described hereinafter. It can be understood that FIG. 1 and the related drawings hereinafter only schematically show some components included in the electronic device 100, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 1 and the drawings hereinafter.

[0114] In some embodiments, the electronic device 100 can include a screen 10 and a housing 20. The screen 10 is mounted to the housing 20. The screen 10 has a display function, or the screen 10 can integrate a display function and a touch sensing function. The display function of the screen 10 is used to display text, images, videos, etc. The touch sensing function of the screen 10 is used to detect the touch action of the user to realize the information interaction between man and machine.

[0115] In the present embodiment, the electronic device 100 further includes a speaker 30, which can be accommodated in the interior of the housing 20. The speaker 30 is used to convert an electrical signal into an acoustic signal, which can be propagated to the outside of the electronic device 100 through the housing 20 to realize sound playing. In the present embodiment, the electronic device 100 includes a plurality of speakers 30, which cooperate with each other to improve the sound quality of the electronic device 100. The present application does not limit the number of the speakers 30, which can be designed according to actual needs by those skilled in the art.

[0116] In some embodiments, the housing 20 can be provided with a plurality of through holes 201. The through holes 201 can be connected to the speakers 30 and communicate with the outside of the housing 20. The acoustic signal output by the speaker 30 can be propagated to the outside of the electronic device 100 through the through holes 201. It can be understood that the structure, number and arrangement of the through holes 201 of the electronic device 100, the position and shape of the openings of the through holes 201 can have various arrangements, that is, the structure, number and arrangement of the through holes 201 of the electronic device 100, the position and shape of the openings of the through holes 201 can be adjusted according to actual needs. The present application does not strictly limit the position structure, number and arrangement of the through holes 201 of the electronic device 100, and the position and shape of the openings of the through holes 201. The position structure, number and arrangement of the through holes 201 of the electronic device 100, and the position and shape of the openings of the through holes 201 will be specifically introduced in the following in combination with the related drawings.

[0117] In some embodiments, the electronic device 100 can further include a microphone 40, which is accommodated in the interior of the housing 20. The microphone 40 can convert a sound signal into an electric signal for inputting an audio signal. It can be understood that, in the present embodiment, the electronic device 100 is provided with the speaker 30 and the microphone 40, and the electronic device 100 can both output sound and input sound, so that the electronic device 100 can realize a call or voice function. For example, the microphone 40 includes a diaphragm and a back plate which are oppositely and spacedly arranged, and the diaphragm and the back plate form a capacitor structure. The vibration of the external sound of the electronic device 100 is transmitted to the diaphragm in the microphone 40, which changes the relative distance between the diaphragm and the back plate, so that the electric signal of the capacitor structure is changed, and the sound signal is converted into the electric signal. In the present embodiment, the electronic device 100 includes a plurality of microphones 40, which cooperate with each other to improve the recording effect of the electronic device 100. The number of the microphones 40 is not limited in the present application, and can be designed according to actual needs by those skilled in the art. For example, the housing 20 can further be provided with a sound inlet hole 202. The sound inlet hole 202 is connected to the microphone 40 and communicates with the outside of the electronic device 100. The sound outside the electronic device 100 is transmitted to the interior of the microphone 40 through the sound inlet hole 202.

[0118] In the present embodiment, the through hole 201 can be arranged at the top end of the housing 20, and the sound inlet hole 202 can be arranged at the bottom end of the housing 20. In this way, when the user holds the electronic device 100 according to the call habit, the through hole 201 can be close to the ear of the user, and the sound inlet hole 202 can be close to the mouth of the user, so that the user can effectively receive the sound of the speaker 30, and the sound emitted by the user can be effectively transmitted to the microphone 40, thereby improving the call effect of the electronic device 100. In other embodiments, the first through hole 201 and the sound inlet hole 202 can also be arranged at other positions of the electronic device 100, which are not limited in the present application.

[0119] The main structure of the electronic device 100 and the approximate position of the speaker 30 in the electronic device 100 are introduced above, and the specific structure of the speaker 30 will be introduced below in combination with the related drawings.

[0120] Please refer to FIG. 2 and FIG. 3, FIG. 2 is a structural schematic diagram of the loudspeaker 30 shown in FIG. 1 in some embodiments, and FIG. 3 is a partial structural exploded view of the loudspeaker 30 shown in FIG. 2 in some embodiments. It can be understood that FIG. 2, FIG. 3 and the relevant drawings hereinafter only schematically show some components included in the loudspeaker 30, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 2, FIG. 3 and the drawings hereinafter. For the convenience of the description hereinafter, the length direction of the loudspeaker 30 is defined as the X-axis direction, the width direction of the loudspeaker 30 is defined as the Y-axis direction, and the thickness direction of the loudspeaker 30 is defined as the Z-axis direction. The X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other. In the embodiments of the present application, the Z-axis direction can be a first direction, and the X-axis direction can be a second direction.

[0121] In some embodiments, the loudspeaker 30 can include a support 31, a magnetic circuit assembly 32, a first vibration assembly 33, a second vibration assembly 34, a third vibration assembly 35, a first conductive support 36, a second conductive support 37, a first housing 38 and a second housing 39. The support 31 can include an upper support 311 and a lower support 312. The first vibration assembly 33 can include a first diaphragm 331 and a first voice coil 332. The second vibration assembly 34 can include a second diaphragm 341 and a second voice coil 342. The third vibration assembly 35 can include a third diaphragm 351 and a third voice coil 352. It can be understood that the loudspeaker 30 can include more or fewer components. For example, the loudspeaker 30 can have fewer components, and the loudspeaker 30 can not include the first housing 38 and / or the second housing 39.

[0122] Please refer to FIG. 4 and FIG. 5, FIG. 4 is a structural schematic diagram of the magnetic circuit assembly 32 shown in FIG. 3 in some embodiments, and FIG. 5 is a partial structural exploded view of the magnetic circuit assembly 32 shown in FIG. 4 in some embodiments.

[0123] In some embodiments, the magnetic circuit assembly 32 can include an inner magnetic portion 32A and an outer magnetic portion 32B, which can be disposed around the inner magnetic portion 32A. For example, the inner magnetic portion 32A can include a first magnetic piece 321, a second magnetic piece 322, and a third magnetic piece 323. The first magnetic piece 321, the second magnetic piece 322, and the third magnetic piece 323 can be sequentially and spacedly distributed along the X-axis direction. The first magnetic piece 321 and the second magnetic piece 322 can be oppositely and spacedly disposed, and a portion of the first magnetic gap 32a can be formed between the first magnetic piece 321 and the second magnetic piece 322. The second magnetic piece 322 and the third magnetic piece 323 can be oppositely and spacedly disposed, and a portion of the second magnetic gap 32b can be formed between the second magnetic piece 322 and the third magnetic piece 323. For example, the outer magnetic portion 32B can include a fourth magnetic piece 324, a fifth magnetic piece 325, a sixth magnetic piece 326, and a seventh magnetic piece 327. The fourth magnetic piece 324, the fifth magnetic piece 325, the sixth magnetic piece 326, and the seventh magnetic piece 327 can be spacedly disposed around the first magnetic piece 321, the second magnetic piece 322, and the third magnetic piece 323, respectively.

[0124] The fourth magnetic piece 324 and the first magnetic piece 321 can be oppositely and spacedly disposed, and a portion of the first magnetic gap 32a can be formed between the fourth magnetic piece 324 and the first magnetic piece 321. The fourth magnetic piece 324 and the third magnetic piece 323 can be oppositely and spacedly disposed, and a portion of the second magnetic gap 32b can be formed between the fourth magnetic piece 324 and the third magnetic piece 323.

[0125] The fifth magnetic piece 325 and the first magnetic piece 321 can be oppositely and spacedly disposed, and a portion of the first magnetic gap 32a can be formed between the fifth magnetic piece 325 and the first magnetic piece 321. The fifth magnetic piece 325 and the third magnetic piece 323 can be oppositely and spacedly disposed, and a portion of the second magnetic gap 32b can be formed between the fifth magnetic piece 325 and the third magnetic piece 323.

[0126] The sixth magnetic piece 326 and the first magnetic piece 321 can be oppositely and spacedly disposed, and a portion of the first magnetic gap 32a can be formed between the sixth magnetic piece 326 and the first magnetic piece 321.

[0127] The seventh magnetic piece 327 and the third magnetic piece 323 can be oppositely and spacedly disposed, and a portion of the second magnetic gap 32b can be formed between the seventh magnetic piece 327 and the third magnetic piece 323.

[0128] It can be understood that in the embodiments of the present application, the first magnetic gap 32a can be arranged around the first magnetic member 321, and the second magnetic gap 32b can be arranged around the third magnetic member 323. The first magnetic gap 32a and the second magnetic gap 32b are arranged at intervals.

[0129] Please refer to FIG. 5 and FIG. 6, FIG. 6 is a structural schematic diagram of the first magnetic conducting member 328 shown in FIG. 5 at another angle.

[0130] In some embodiments, the magnetic circuit assembly 32 can further include a first magnetic conducting member 328, a second magnetic conducting member 329, a first magnetic conducting part 3210, a second magnetic conducting part 3220, a third magnetic conducting part 3230, a sixth magnetic conducting part 3260 and a seventh magnetic conducting part 3270. The first magnetic conducting member 328 and the second magnetic conducting member 329 can be made of high magnetic conducting material.

[0131] For example, the first magnetic conducting member 328 can include a main body part 3281, a first connecting part 3282, a second connecting part 3283, a first side part 3284 and a second side part 3285. The first side part 3284, the main body part 3281 and the second side part 3285 can be arranged in sequence in a direction perpendicular to the Z-axis direction, for example, in the Y-axis direction. The first connecting part 3282 can be connected between the main body part 3281 and the first side part 3284, and the second connecting part 3283 can be connected between the main body part 3281 and the second side part 3285.

[0132] For example, the first connecting part 3282 can be bent relative to the main body part 3281, so that the first connecting part 3282 and the main body part 3281 are arranged at an angle, for example, the first connecting part 3282 and the main body part 3281 can be perpendicular. The first side part 3284 can be bent relative to the first connecting part 3282, for example, the first side part 3284 and the first connecting part 3282 can be perpendicular. For example, in the Z-axis direction (i.e. the first direction), one end of the first connecting part 3282 is connected to the main body part 3281, and the other end of the first connecting part 3282 is connected to the first side part 3284. In a direction perpendicular to the Z-axis direction, for example, in the Y-axis direction, at least part of the first side part 3284 and the main body part 3281 can be located on opposite sides of the first connecting part 3282, respectively. It can be understood that in a direction perpendicular to the Z-axis direction, for example, in the Y-axis direction, the first side part 3284 can be located entirely on one side of the first connecting part 3282 away from the main body part 3281, or the first side part 3284 can be located partially on one side of the first connecting part 3282 away from the main body part 3281.

[0133] The second connecting portion 3283 can be bent relative to the main body portion 3281 such that the second connecting portion 3283 is arranged at an angle to the main body portion 3281, for example, the second connecting portion 3283 can be arranged perpendicularly to the main body portion 3281. The second side portion 3285 can be bent relative to the second connecting portion 3283, for example, the second side portion 3285 can be arranged perpendicularly to the second connecting portion 3283. For example, in the Z-axis direction (i.e. the first direction), one end of the second connecting portion 3283 is connected to the main body portion 3281, and the other end of the second connecting portion 3283 is connected to the second side portion 3285, and in a direction perpendicular to the Z-axis direction, for example, in the Y-axis direction, at least part of the second side portion 3285 can be located on opposite sides of the second connecting portion 3283 from the main body portion 3281, respectively. It can be understood that, in a direction perpendicular to the Z-axis direction, for example, in the Y-axis direction, the second side portion 3285 can be located entirely on one side of the second connecting portion 3283 away from the main body portion 3281, or the second side portion 3285 can be located partially on one side of the second connecting portion 3283 away from the main body portion 3281.

[0134] For example, the first connecting portion 3282 and the second connecting portion 3283 can be bent towards the same side relative to the main body portion 3281, for example, in the Z-axis direction, the first side portion 3284 and the second side portion 3285 can be located on the same side of the main body portion 3281. At this time, the first connecting portion 3282 and the second connecting portion 3283 can be arranged opposite and spaced apart.

[0135] In some embodiments, the first magnetic conductive member 328 can include a first through slot 3286 and a second through slot 3287. The first through slot 3286 can be arranged at the main body portion 3281 and / or the first connecting portion 3282, and the first through slot 3286 can extend through the main body portion 3281 and / or the first connecting portion 3282. For example, the first through slot 3286 can be located at the connection between the main body portion 3281 and the first connecting portion 3282. The second through slot 3287 can be arranged at the main body portion 3281 and / or the second connecting portion 3283, and the second through slot 3287 can extend through the main body portion 3281 and / or the second connecting portion 3283. For example, the second through slot 3287 can be located at the connection between the main body portion 3281 and the second connecting portion 3283. It can be understood that, by arranging the first through slot 3286 and the second through slot 3287, a portion of the main body portion 3281 and the first connecting portion 3282 can be arranged spaced apart, and a portion of the main body portion 3281 and the second connecting portion 3283 can be arranged spaced apart.

[0136] Referring to FIG. 5, in some embodiments, the second magnetic conducting member 329 can be substantially rectangular plate-shaped, and a middle portion of the second magnetic conducting member 329 can be hollowed. Four corners of the second magnetic conducting member 329 can be respectively provided with a avoiding area 3291, and the avoiding area 3291 can be communicated with the middle hollowed area of the second magnetic conducting member 329. It can be understood that the avoiding area 3291 of the second magnetic conducting member 329 can be used for avoiding other components of the loudspeaker 30, and the arrangement of components of the loudspeaker 30 can be more compact, thereby facilitating the miniaturization of the loudspeaker 30.

[0137] Referring to FIGS. 4 and 5, in some embodiments, the fourth magnetic member 324, the fifth magnetic member 325, the sixth magnetic member 326 and the seventh magnetic member 327 can be fixed to the same side of the second magnetic conducting member 329. Among them, the fourth magnetic member 324 and the fifth magnetic member 325 can be located on two long edges of the second magnetic conducting member 329, and the sixth magnetic member 326 and the seventh magnetic member 327 can be located on two short edges of the second magnetic conducting member 329. The sixth magnetic conducting part 3260 can be fixed to the side of the sixth magnetic member 326 away from the second magnetic conducting member 329. The seventh magnetic conducting part 3270 can be fixed to the side of the seventh magnetic member 327 away from the second magnetic conducting member 329.

[0138] For example, the fourth magnetic member 324, the fifth magnetic member 325, the sixth magnetic member 326 and the seventh magnetic member 327 are spaced apart. At this time, the space between the fourth magnetic member 324 and the sixth magnetic member 326 and the seventh magnetic member 327, and the space between the fifth magnetic member 325 and the sixth magnetic member 326 and the seventh magnetic member 327 can be communicated with the avoiding area 3291 of the second magnetic conducting member 329. The space between the fourth magnetic member 324 and the sixth magnetic member 326 and the seventh magnetic member 327, and the space between the fifth magnetic member 325 and the sixth magnetic member 326 and the seventh magnetic member 327 can also be used for arranging other components of the loudspeaker 30, which is conducive to improving the structural compactness of the loudspeaker 30, thereby facilitating the miniaturization of the loudspeaker 30.

[0139] In other embodiments, the fourth magnetic member 324, the fifth magnetic member 325, the sixth magnetic member 326 and the seventh magnetic member 327 can also be connected in sequence to form a frame. The present application does not make strict limitation thereto.

[0140] Referring to FIGS. 4 and 7A, FIG. 7A is a top view of the magnetic circuit assembly 32 shown in FIG. 4 in some embodiments.

[0141] In some embodiments, the second magnetic conductor 329 can be disposed around the main body portion 3281 of the first magnetic conductor 328. The first side portion 3284 of the first magnetic conductor 328 can be fixedly connected to the fourth magnetic member 324. For example, the first side portion 3284 can be fixed to a side of the fourth magnetic member 324 facing away from the second magnetic conductor 329. At this time, the fourth magnetic member 324 can be located in a space between the first side portion 3284 and the first connecting portion 3282. The second side portion 3285 of the first magnetic conductor 328 can be fixedly connected to the fifth magnetic member 325. For example, the second side portion 3285 can be fixed to a side of the fifth magnetic member 325 facing away from the second magnetic conductor 329. At this time, the fifth magnetic member 325 can be located in a space between the second side portion 3285 and the second connecting portion 3283.

[0142] In some embodiments, the first magnetic member 321, the second magnetic member 322, and the third magnetic member 323 can be fixedly connected to the main body portion 3281 of the first magnetic conductor 328. The first magnetic guide portion 3210, the second magnetic guide portion 3220, and the third magnetic guide portion 3230 can be fixed to sides of the first magnetic member 321, the second magnetic member 322, and the third magnetic member 323, respectively, away from the main body portion 3281.

[0143] Referring to FIGS. 7A to 7C, FIG. 7B is a partial cross-sectional structure diagram of the magnetic circuit assembly 32 of FIG. 7A, in some embodiments, along A-A, and FIG. 7C is a partial cross-sectional structure diagram of the magnetic circuit assembly 32 of FIG. 7A, in some embodiments, along B1-B1. For example, the main body portion 3281, the first connecting portion 3282, the second connecting portion 3283, the first side portion 3284, and the second side portion 3285 of the first magnetic conductor 328 are schematically distinguished by dashed lines in FIG. 7C.

[0144] In some embodiments, a portion of the first magnetic guide portion 3210 and the second magnetic guide portion 3220 can be disposed opposite and spaced apart from each other, and a portion of the first magnetic guide portion 3210 and the second magnetic guide portion 3220 can form a portion of the first magnetic gap 32a. A portion of the first magnetic guide portion 3210 and a portion of the first side portion 3284 of the first magnetic conductor 328 can be disposed opposite and spaced apart from each other, and a portion of the first magnetic guide portion 3210 and a portion of the first side portion 3284 can form a portion of the first magnetic gap 32a. A portion of the first magnetic guide portion 3210 and a portion of the second side portion 3285 of the first magnetic conductor 328 can be disposed opposite and spaced apart from each other, and a portion of the first magnetic guide portion 3210 and a portion of the second side portion 3285 can form a portion of the first magnetic gap 32a. A portion of the first magnetic guide portion 3210 and the sixth magnetic guide portion 3260 can be disposed opposite and spaced apart from each other, and a portion of the first magnetic guide portion 3210 and the sixth magnetic guide portion 3260 can form a portion of the first magnetic gap 32a.

[0145] Exemplarily, the part of the second magnetic conductor 329 corresponding to the part of the sixth magnetic member 326 can be arranged opposite and spaced apart from the main body portion 3281 of the first magnetic conductor 328, and a part of the first magnetic gap 32a can be formed between the part of the second magnetic conductor 329 corresponding to the part of the sixth magnetic member 326 and the main body portion 3281 of the first magnetic conductor 328.

[0146] In some embodiments, a part of the third magnetic conductor 3230 can be arranged opposite and spaced apart from the second magnetic conductor 3220, and a part of the second magnetic gap 32b can be formed between the part of the third magnetic conductor 3230 and the second magnetic conductor 3220. A part of the third magnetic conductor 3230 can be arranged opposite and spaced apart from a part of the first side portion 3284 of the first magnetic conductor 328, and a part of the second magnetic gap 32b can be formed between the part of the third magnetic conductor 3230 and the part of the first side portion 3284. A part of the third magnetic conductor 3230 can be arranged opposite and spaced apart from a part of the second side portion 3285 of the first magnetic conductor 328, and a part of the second magnetic gap 32b can be formed between the part of the third magnetic conductor 3230 and the part of the second side portion 3285. A part of the third magnetic conductor 3230 can be arranged opposite and spaced apart from the seventh magnetic conductor 3270, and a part of the second magnetic gap 32b can be formed between the part of the third magnetic conductor 3230 and the seventh magnetic conductor 3270.

[0147] Exemplarily, the part of the second magnetic conductor 329 corresponding to the part of the seventh magnetic member 327 can be arranged opposite and spaced apart from the main body portion 3281 of the first magnetic conductor 328, and a part of the second magnetic gap 32b can be formed between the part of the second magnetic conductor 329 corresponding to the part of the seventh magnetic member 327 and the main body portion 3281 of the first magnetic conductor 328.

[0148] Please refer to FIG. 4 and FIG. 7C, in the embodiment, the part of the first magnetic member 321, the first magnetic conducting part 3210 and the main part 3281 of the first magnetic conducting member 328 corresponding to the first magnetic member 321 can form the first magnetic part 321A. The part of the second magnetic member 322, the second magnetic conducting part 3220 and the main part 3281 of the first magnetic conducting member 328 corresponding to the second magnetic member 322 can form the second magnetic part 322A. The part of the third magnetic member 323, the third magnetic conducting part 3230 and the main part 3281 of the first magnetic conducting member 328 corresponding to the third magnetic member 323 can form the third magnetic part 323A. The part of the fourth magnetic member 324, the first side part 3284 of the first magnetic conducting member 328 and the second magnetic conducting member 329 corresponding to the fourth magnetic member 324 can form the fourth magnetic part 321B. The part of the fifth magnetic member 325, the second side part 3285 of the first magnetic conducting member 328 and the second magnetic conducting member 329 corresponding to the fifth magnetic member 325 can form the fifth magnetic part 322B. The part of the sixth magnetic member 326, the sixth magnetic conducting part 3260 and the second magnetic conducting member 329 corresponding to the sixth magnetic member 326 can form the sixth magnetic part 323B. The part of the seventh magnetic member 327, the seventh magnetic conducting part 3270 and the second magnetic conducting member 329 corresponding to the seventh magnetic member 327 can form the seventh magnetic part 324B.

[0149] In some embodiments, a part of the first connecting part 3282 can be located between the first magnetic part 321A and the fourth magnetic part 321B, for example, a part of the first connecting part 3282 can be located between the first magnetic member 321 and the fourth magnetic member 324 and spaced apart from both the first magnetic member 321 and the fourth magnetic member 324. At this time, a part of the first connecting part 3282 and the first magnetic member 321 can form a first sub-magnetic gap 321a, and a part of the first connecting part 3282 and the fourth magnetic member 324 can form a second sub-magnetic gap 322a. The first sub-magnetic gap 321a and the second sub-magnetic gap 322a are both part of the first magnetic gap 32a.

[0150] For example, a part of the first connecting part 3282 can be located opposite and spaced apart from the part of the second magnetic conducting member 329 corresponding to the fourth magnetic member 324, and a third sub-magnetic gap 323a can be formed between the part of the first connecting part 3282 and the part of the second magnetic conducting member 329 corresponding to the fourth magnetic member 324. The third sub-magnetic gap 323a is at least partially opposite and connected to the second sub-magnetic gap 322a, and the third sub-magnetic gap 323a is part of the first magnetic gap 32a.

[0151] In some embodiments, a portion of the second connecting portion 3283 can be located between the first magnetic portion 321A and the fifth magnetic portion 322B, for example, a portion of the second connecting portion 3283 can be located between the first magnetic member 321 and the fifth magnetic member 325 and spaced apart from both the first magnetic member 321 and the fifth magnetic member 325. At this time, a fourth sub-magnetic gap 324a can be formed between the portion of the second connecting portion 3283 and the first magnetic member 321, and a fifth sub-magnetic gap 325a can be formed between the portion of the second connecting portion 3283 and the fifth magnetic member 325, and the fourth sub-magnetic gap 324a and the fifth sub-magnetic gap 325a are both a portion of the first magnetic gap 32a.

[0152] For example, a portion of the second connecting portion 3283 can be spaced apart from a portion of the fifth magnetic member 325 corresponding to the second magnetic member 329, and a sixth sub-magnetic gap 326a can be formed between the portion of the second connecting portion 3283 and the portion of the fifth magnetic member 325 corresponding to the second magnetic member 329. The sixth sub-magnetic gap 326a is at least partially opposite and communicates with the fifth sub-magnetic gap 325a, and the sixth sub-magnetic gap 326a is a portion of the first magnetic gap 32a.

[0153] Please refer to FIG. 4 and FIG. 7D, which is a partial cross-sectional structure schematic view of the magnetic circuit assembly 32 shown in FIG. 7A along B2-B2 in some embodiments. For example, the main portion 3281, the first connecting portion 3282, the second connecting portion 3283, the first side portion 3284 and the second side portion 3285 of the first magnetic member 328 are schematically distinguished by dashed lines in FIG. 7D.

[0154] In some embodiments, a portion of the first connecting portion 3282 can be located between the third magnetic portion 323A and the fourth magnetic portion 321B, for example, a portion of the first connecting portion 3282 can be located between the third magnetic member 323 and the fourth magnetic member 324 and spaced apart from both the third magnetic member 323 and the fourth magnetic member 324. At this time, a seventh sub-magnetic gap 321b can be formed between the portion of the first connecting portion 3282 and the third magnetic member 323, and an eighth sub-magnetic gap 322b can be formed between the portion of the first connecting portion 3282 and the fourth magnetic member 324, and the seventh sub-magnetic gap 321b and the eighth sub-magnetic gap 322b are both a portion of the second magnetic gap 32b.

[0155] For example, a portion of the first connecting portion 3282 can be disposed opposite and spaced apart from a portion of the fourth magnetic member 324 corresponding to the second magnetic conductor 329, and a ninth sub-magnetic gap 323b can be formed between the portion of the first connecting portion 3282 and the portion of the fourth magnetic member 324 corresponding to the second magnetic conductor 329. The ninth sub-magnetic gap 323b is at least partially opposite and continuous with the eighth sub-magnetic gap 322b, and the ninth sub-magnetic gap 323b is part of the second magnetic gap 32b.

[0156] In some embodiments, a portion of the second connecting portion 3283 can be located between the third magnetic portion 323A and the fifth magnetic portion 322B, for example, a portion of the second connecting portion 3283 can be located between the third magnetic member 323 and the fifth magnetic member 325 and spaced apart from both the third magnetic member 323 and the fifth magnetic member 325. At this time, a tenth sub-magnetic gap 324b can be formed between the portion of the second connecting portion 3283 and the third magnetic member 323, and an eleventh sub-magnetic gap 325b can be formed between the portion of the second connecting portion 3283 and the fifth magnetic member 325, and the tenth sub-magnetic gap 324b and the eleventh sub-magnetic gap 325b are both part of the second magnetic gap 32b.

[0157] For example, a portion of the second connecting portion 3283 can be disposed opposite and spaced apart from a portion of the fifth magnetic member 325 corresponding to the second magnetic conductor 329, and a twelfth sub-magnetic gap 326b can be formed between the portion of the second connecting portion 3283 and the portion of the fifth magnetic member 325 corresponding to the second magnetic conductor 329. The twelfth sub-magnetic gap 326b is at least partially opposite and continuous with the eleventh sub-magnetic gap 325b, and the twelfth sub-magnetic gap 326b is part of the second magnetic gap 32b.

[0158] Please refer to FIG. 4 and FIG. 7E, which is a partial cross-sectional structure schematic view of the magnetic circuit assembly 32 shown in FIG. 7A along C-C in some embodiments. For example, in FIG. 7E, the first connecting portion 3282, the second connecting portion 3283, the first side portion 3284 and the second side portion 3285 of the first magnetic conductor 328 are schematically distinguished by dashed lines.

[0159] In some embodiments, the second magnetic portion 322A and the fourth magnetic portion 321B are spaced apart. For example, the second magnetic portion 322A is spaced apart from the first side portion 3284 of the first magnetic conductor 328, the second magnetic member 322 is spaced apart from the fourth magnetic member 324, and the main portion 3281 of the first magnetic conductor 328 is spaced apart between the portion of the second magnetic member 322 corresponding to the second magnetic conductor 329 and the portion of the fourth magnetic member 324 corresponding to the second magnetic conductor 329.

[0160] It can be understood that in the embodiments of the present application, the second magnetic part 322A and the first magnetic part 321A and the third magnetic part 323A can form a magnetic loop, and the fourth magnetic part 321B and the first magnetic part 321A and the third magnetic part 323A can form a magnetic loop. At this time, the magnetic pole of the first end of the first magnetic part 321A is the same as the magnetic pole of the first end of the third magnetic part 323A, the magnetic pole of the first end of the second magnetic part 322A is the same as the magnetic pole of the first end of the fourth magnetic part 321B, and the magnetic pole of the first end of the first magnetic part 321A is opposite to the magnetic pole of the first end of the second magnetic part 322A; Similarly, the magnetic pole of the second end of the first magnetic part 321A is the same as the magnetic pole of the second end of the third magnetic part 323A, the magnetic pole of the second end of the second magnetic part 322A is the same as the magnetic pole of the second end of the fourth magnetic part 321B, and the magnetic pole of the second end of the first magnetic part 321A is opposite to the magnetic pole of the second end of the second magnetic part 322A. For example, the magnetic pole of the first end of the first magnetic part 321A and the magnetic pole of the first end of the third magnetic part 323A can be N poles, and the magnetic pole of the first end of the second magnetic part 322A and the magnetic pole of the first end of the fourth magnetic part 321B can be S poles; the magnetic pole of the second end of the first magnetic part 321A and the magnetic pole of the second end of the third magnetic part 323A can be S poles, and the magnetic pole of the second end of the second magnetic part 322A and the magnetic pole of the second end of the fourth magnetic part 321B can be N poles; or the magnetic pole of the first end of the first magnetic part 321A and the magnetic pole of the first end of the third magnetic part 323A can be S poles, and the magnetic pole of the first end of the second magnetic part 322A and the magnetic pole of the first end of the fourth magnetic part 321B can be N poles; the magnetic pole of the second end of the first magnetic part 321A and the magnetic pole of the second end of the third magnetic part 323A can be N poles, and the magnetic pole of the second end of the second magnetic part 322A and the magnetic pole of the second end of the fourth magnetic part 321B can be S poles. Wherein, the first end of the second magnetic part 322A is opposite to the first end of the first magnetic part 321A, the first end of the third magnetic part 323A and the first end of the fourth magnetic part 321B; the second end of the second magnetic part 322A is opposite to the second end of the first magnetic part 321A, the second end of the third magnetic part 323A and the second end of the fourth magnetic part 321B.

[0161] In the embodiments of the present application, the second magnetic part 322A is spaced apart from the fourth magnetic part 321B, so that there is an air gap between the first end of the second magnetic part 322A and the first end of the fourth magnetic part 321B, and between the second end of the second magnetic part 322A and the second end of the fourth magnetic part 321B, thereby increasing the magnetic resistance between the first end of the second magnetic part 322A and the first end of the fourth magnetic part 321B, and between the second end of the second magnetic part 322A and the second end of the fourth magnetic part 321B, and preventing the magnetic fields between the first end of the second magnetic part 322A and the first end of the fourth magnetic part 321B, and between the second end of the second magnetic part 322A and the second end of the fourth magnetic part 321B from canceling each other out and weakening the magnetic field. It can be understood that, in the present application, the second magnetic part 322A is spaced apart from the fourth magnetic part 321B, so that there is an air gap between the plurality of components with the same magnetism, thereby increasing the magnetic resistance between the plurality of components with the same magnetism, and preventing the magnetic fields between the plurality of components with the same magnetism from canceling each other out and weakening the magnetic field.

[0162] In some embodiments, the second magnetic part 322A is spaced apart from the fifth magnetic part 322B. For example, the second magnetic conducting part 3220 is spaced apart from the second side part 3285 of the first magnetic conducting member 328, the second magnetic member 322 is spaced apart from the fifth magnetic member 325, and the main body part 3281 of the first magnetic conducting member 328 is spaced apart from the part of the structure of the second magnetic member 322 corresponding to the part of the structure of the fifth magnetic member 325 corresponding to the second magnetic conducting member 329.

[0163] It can be understood that, in the embodiments of the present application, the second magnetic part 322A and the first magnetic part 321A and the third magnetic part 323A can form a magnetic loop, and the fifth magnetic part 322B and the first magnetic part 321A and the third magnetic part 323A can form a magnetic loop. At this time, the magnetic pole of the first end of the first magnetic part 321A is the same as the magnetic pole of the first end of the third magnetic part 323A, the magnetic pole of the first end of the second magnetic part 322A is the same as the magnetic pole of the first end of the fifth magnetic part 322B, and the magnetic pole of the first end of the first magnetic part 321A is opposite to the magnetic pole of the first end of the second magnetic part 322A; similarly, the magnetic pole of the second end of the first magnetic part 321A is the same as the magnetic pole of the second end of the third magnetic part 323A, the magnetic pole of the second end of the second magnetic part 322A is the same as the magnetic pole of the second end of the fifth magnetic part 322B, and the magnetic pole of the second end of the first magnetic part 321A is opposite to the magnetic pole of the second end of the second magnetic part 322A. Among them, the first end of the second magnetic part 322A is oppositely arranged with the first end of the first magnetic part 321A, the first end of the third magnetic part 323A and the first end of the fifth magnetic part 322B; the second end of the second magnetic part 322A is oppositely arranged with the second end of the first magnetic part 321A, the second end of the third magnetic part 323A and the second end of the fifth magnetic part 322B.

[0164] The second magnetic part 322A and the fifth magnetic part 322B are spaced apart, so that air can be present between the second magnetic part 322A and the fifth magnetic part 322B, that is, air can be present between the plurality of components with the same magnetic property, so that the magnetic resistance between the second magnetic part 322A and the fifth magnetic part 322B can be increased, and mutual cancellation between the magnetic fields of the second magnetic part 322A and the fifth magnetic part 322B can be prevented to weaken the magnetic field.

[0165] Please refer to FIGS. 7A and 7E, in some embodiments, a part of the first connecting part 3282 can be located between the second magnetic component 322 and the fourth magnetic component 324 and spaced apart from the second magnetic component 322 and the fourth magnetic component 324, respectively. A part of the first connecting part 3282 can be located between the part of the main body part 3281 of the first magnetic component 328 corresponding to the second magnetic component 322 and the part of the second magnetic component 329 corresponding to the fourth magnetic component 324, and spaced apart from the part of the main body part 3281 corresponding to the second magnetic component 322 and the part of the second magnetic component 329 corresponding to the fourth magnetic component 324, respectively.

[0166] For example, in the Y-axis direction, the first through slot 3286 of the first magnetic component 328 can be located between the first connecting part 3282 and the second magnetic component 322, so that the part of the main body part 3281 of the first magnetic component 328 corresponding to the second magnetic component 322 can be spaced apart from the first connecting part 3282. In this embodiment, by providing the first through slot 3286 in the first magnetic component 328, air can be present between the part of the main body part 3281 of the first magnetic component 328 corresponding to the second magnetic component 322 and the first connecting part 3282, so that the magnetic resistance between the part of the main body part 3281 of the first magnetic component 328 corresponding to the second magnetic component 322 and the first connecting part 3282 can be increased, and mutual cancellation between the magnetic fields of the part of the main body part 3281 of the first magnetic component 328 corresponding to the second magnetic component 322 and the first connecting part 3282 can be prevented to weaken the magnetic field.

[0167] In some embodiments, a part of the second connecting part 3283 can be located between the second magnetic component 322 and the fifth magnetic component 325 and spaced apart from the second magnetic component 322 and the fifth magnetic component 325, respectively. A part of the second connecting part 3283 can be located between the part of the main body part 3281 of the first magnetic component 328 corresponding to the second magnetic component 322 and the part of the second magnetic component 329 corresponding to the fifth magnetic component 325, and spaced apart from the part of the main body part 3281 corresponding to the second magnetic component 322 and the part of the second magnetic component 329 corresponding to the fifth magnetic component 325, respectively.

[0168] Exemplarily, along the Y-axis direction, the second through slot 3287 of the first magnetic conducting member 328 can be located between the second connecting portion 3283 and the second magnetic member 322, so that the part of the main body portion 3281 of the first magnetic conducting member 328 corresponding to the second magnetic member 322 can be spaced apart from the second connecting portion 3283. In the embodiment, by arranging the second through slot 3287 on the first magnetic conducting member 328, the air gap can exist between the part of the main body portion 3281 of the first magnetic conducting member 328 corresponding to the second magnetic member 322 and the second connecting portion 3283, so that the magnetic resistance between the part of the main body portion 3281 of the first magnetic conducting member 328 corresponding to the second magnetic member 322 and the second connecting portion 3283 can be increased, and the mutual cancellation between the magnetic field of the part of the main body portion 3281 of the first magnetic conducting member 328 corresponding to the second magnetic member 322 and the magnetic field of the second connecting portion 3283 can be prevented, so as to prevent the weakening of the magnetic field.

[0169] It can be understood that, in the embodiment, the first magnetic conducting member 328, the second magnetic conducting member 329, the first magnetic conducting portion 3210, the second magnetic conducting portion 3220, the third magnetic conducting portion 3230, the sixth magnetic conducting portion 3260, and the seventh magnetic conducting portion 3270 can change the magnetic field distribution of the magnetic circuit assembly 32, so that the magnetic field of the magnetic circuit assembly 32 can be concentrated in the magnetic gap, and the magnetic field intensity in the magnetic gap is enhanced. In some other embodiments, the magnetic circuit assembly 32 can not include the first magnetic conducting member 328, and / or the second magnetic conducting member 329, and / or the first magnetic conducting portion 3210, and / or the second magnetic conducting portion 3220, and / or the third magnetic conducting portion 3230, and / or the sixth magnetic conducting portion 3260, and / or the seventh magnetic conducting portion 3270.

[0170] In some other embodiments, the second magnetic member 322 of the magnetic circuit assembly 32 can also be replaced by a high magnetic conducting material.

[0171] In some other embodiments, the sixth magnetic member 326 of the magnetic circuit assembly 32 can also be replaced by a high magnetic conducting material.

[0172] In some other embodiments, the seventh magnetic member 327 of the magnetic circuit assembly 32 can also be replaced by a high magnetic conducting material.

[0173] Please refer to FIG. 8A and FIG. 8B, FIG. 8A is a structural schematic diagram of the upper support 311 shown in FIG. 3 in some embodiments, and FIG. 8B is a structural schematic diagram of the upper support 311 shown in FIG. 8A from another angle.

[0174] In some embodiments, the upper support 311 can be provided with a first through hole 3111 and a second through hole 3112 arranged at intervals, and the first through hole 3111 and the second through hole 3112 can penetrate the upper support 311 along the Z-axis direction. It can be understood that the upper support 311 can have at least two hollowed-out regions, and the upper support 311 can generally be in the shape of a frame. For example, the upper support 311 can generally be in the shape of a rectangle. In other embodiments, the upper support 311 can also be in other shapes, such as a circle, and the like, which are not strictly limited in the present application.

[0175] For example, the upper support 311 can include a first face 3113 and a second face 3114, and the first face 3113 and the second face 3114 of the upper support 311 are arranged back to back in the Z-axis direction. The first through hole 3111 and the second through hole 3112 can penetrate the first face 3113 and the second face 3114 of the upper support 311. The upper support 311 can also be provided with a first accommodating groove 3115, and the opening of the first accommodating groove 3115 can be located on the second face 3114. The first accommodating groove 3115 can surround the first through hole 3111 and the second through hole 3112 along the circumference of the upper support 311, and communicate with the first through hole 3111 and the second through hole 3112.

[0176] For example, the upper support 311 can also be provided with a protruding portion 3116. The protruding portion 3116 can protrude away from the first face 3113 from part of the second face 3114. The number of protruding portions 3116 can be multiple, for example, when the upper support 311 is in the shape of a rectangle, the number of protruding portions 3116 can be four, and one protruding portion 3116 is arranged at each corner of the upper support 311.

[0177] For example, the upper support 311 can also be provided with a mounting groove 3117, and the opening of the mounting groove 3117 can be located on the first face 3113. The mounting groove 3117 is arranged along the circumference of the upper support 311, and at least partially surrounds the first through hole 3111 and the second through hole 3112.

[0178] Please refer to FIG. 9, which is a structural schematic diagram of the lower support 312 in some embodiments of FIG. 3.

[0179] In some embodiments, the lower support 312 can generally be in the shape of a frame, for example, the lower support 312 can be a rectangular frame, and the middle part of the lower support 312 can be hollowed out. In other embodiments, the lower support 312 can also be a frame in other shapes, such as a circular frame, and the like, which are not strictly limited in the present application.

[0180] For example, the lower support 312 can be provided with a second accommodating groove 3121, and the second accommodating groove 3121 can communicate with the hollowed-out region in the middle of the lower support 312. The number of second accommodating grooves 3121 can be two, and the two second accommodating grooves 3121 can be located on the two long edges of the lower support 312.

[0181] For example, the lower support 312 can further be provided with two avoiding grooves 3122, which can be in communication with the middle hollow area of the lower support 312. The two avoiding grooves 3122 can be located at the two short sides of the lower support 312.

[0182] Please refer to FIG. 10A to FIG. 11, FIG. 10A is a schematic diagram of the partial structure of the loudspeaker 30 shown in FIG. 2 in some embodiments, FIG. 10B is a schematic diagram of the partial structure of the loudspeaker 30 shown in FIG. 10A from another angle, and FIG. 11 is a schematic diagram of the partial cross-section of the loudspeaker 30 shown in FIG. 10A along D-D. For example, FIG. 10A mainly shows the schematic diagram of the assembly structure of the upper support 311, the lower support 312, the magnetic circuit assembly 32, and the second conductive branch 37.

[0183] In some embodiments, the lower support 312 can be fixedly connected with the magnetic circuit assembly 32. At least part of the magnetic circuit assembly 32 can be located in the middle hollow area of the lower support 312. For example, the second magnetic conductor 329 and the main body part 3281 of the first magnetic conductor 328 of the magnetic circuit assembly 32 can be located in the middle hollow area of the lower support 312. At this time, part of the first magnetic gap 32a and the second magnetic gap 32b of the magnetic circuit assembly 32 can be located in the middle hollow area of the lower support 312.

[0184] For example, the lower support 312 can be fixedly connected with the second magnetic conductor 329 of the magnetic circuit assembly 32. In some examples, the second magnetic conductor 329 of the magnetic circuit assembly 32 and the lower support 312 can be formed as a whole by injection molding. In other examples, the second magnetic conductor 329 of the magnetic circuit assembly 32 can also be fixed to the inner side of the lower support 312 by bonding or the like.

[0185] For example, the fourth magnetic member 324 and the fifth magnetic member 325 of the magnetic circuit assembly 32 can be fixedly connected with the lower support 312. For example, part of the fourth magnetic member 324 and part of the fifth magnetic member 325 can be located in the two second accommodating grooves 3121 of the lower support 312. For example, the two avoiding grooves 3122 of the lower support 312 can be used to avoid the sixth magnetic member 326 and the seventh magnetic member 327 of the magnetic circuit assembly 32.

[0186] Please refer to FIG. 10A, FIG. 11, and FIG. 12, FIG. 12 is a schematic diagram of the partial structure of the loudspeaker 30 shown in FIG. 2 in some embodiments. For example, FIG. 12 mainly shows the schematic diagram of the assembly structure of the lower support 312, the magnetic circuit assembly 32, and the second conductive branch 37.

[0187] In some embodiments, the second conductive branch 37 can be fixed to the lower bracket 312, and the upper bracket 311 can be fixedly connected to the second conductive branch 37. For example, the four protrusions 3116 of the upper bracket 311 can be fixed to the side of the second conductive branch 37 away from the lower bracket 312. It can be understood that the upper bracket 311 can be fixedly connected to the lower bracket 312 through the second conductive branch 37.

[0188] For example, the second conductive branch 37 can include a first sub-branch 371 and a second sub-branch 372, and the first sub-branch 371 and the second sub-branch 372 can be fixed to opposite edges of the lower bracket 312, for example, the first sub-branch 371 and the second sub-branch 372 can be fixed to the two short edges of the lower bracket 312.

[0189] For example, a portion of the first sub-branch 371 can be located in the space between the fourth magnetic member 324 and the sixth magnetic member 326, and a portion of the first sub-branch 371 can be located in the space between the sixth magnetic member 326 and the fifth magnetic member 325. A portion of the second sub-branch 372 can be located in the space between the fourth magnetic member 324 and the seventh magnetic member 327, and a portion of the second sub-branch 372 can be located in the space between the fifth magnetic member 325 and the seventh magnetic member 327.

[0190] For example, the sixth magnetic conducting portion 3260 and the seventh magnetic conducting portion 3270 of the magnetic circuit assembly 32 can be fixedly connected to the upper bracket 311. In some examples, the sixth magnetic conducting portion 3260 and the seventh magnetic conducting portion 3270 of the magnetic circuit assembly 32 and the upper bracket 311 can be formed as a whole by injection molding. In other examples, the sixth magnetic conducting portion 3260 and the seventh magnetic conducting portion 3270 of the magnetic circuit assembly 32 can also be fixed to the inner side of the upper bracket 311 by bonding or the like.

[0191] For example, the first side portion 3284 and the second side portion 3285 of the first magnetic member 328 of the magnetic circuit assembly 32 can be fixedly connected to the upper bracket 311. For example, the first side portion 3284 and the second side portion 3285 of the first magnetic member 328 can be located in the two first accommodating grooves 3115 of the upper bracket 311, respectively.

[0192] In some embodiments, the second magnetic conducting portion 3220 can be fixedly connected to the upper bracket 311 to improve the connection stability between the upper bracket 311 and the magnetic circuit assembly 32. At this time, the first magnetic gap 32a of the magnetic circuit assembly 32 can be opposite and in communication with the first through hole 3111 of the upper bracket 311, and the second magnetic gap 32b of the magnetic circuit assembly 32 can be opposite and in communication with the second through hole 3112 of the upper bracket 311.

[0193] Please refer to FIG. 13 to FIG. 14B. FIG. 13 is a schematic diagram of a partial structure of the loudspeaker 30 shown in FIG. 2 in some embodiments. FIG. 14A is a schematic diagram of a partial cross-section of the loudspeaker 30 shown in FIG. 13 along E-E in some embodiments. FIG. 14B is a schematic diagram of a partial cross-section of the loudspeaker 30 shown in FIG. 13 along F-F in some embodiments. For example, FIG. 13 mainly shows a schematic diagram of an assembled structure of the upper support 311, the lower support 312, the magnetic circuit assembly 32, the first conductive support 36, the second conductive support 37, the first vibration assembly 33, the second vibration assembly 34, and the third vibration assembly 35.

[0194] In some embodiments, the periphery of the first diaphragm 331 and the periphery of the second diaphragm 341 can be fixedly connected to a side surface of the upper support 311 facing away from the lower support 312. It can be understood that the side surface of the upper support 311 facing away from the lower support 312 is the first surface 31a of the support 31. For example, the periphery of the first diaphragm 331 and the periphery of the second diaphragm 341 can be fixedly connected to different positions of the first surface 31a of the support 31. A part of the magnetic circuit assembly 32 is arranged opposite to the first diaphragm 331, and a part of the magnetic circuit assembly 32 is arranged opposite to the second diaphragm 341. For example, FIG. 14A and FIG. 14B both schematically distinguish the first diaphragm 331 and the second diaphragm 341 by using dashed lines.

[0195] For example, the first diaphragm 331 can include a vibration part 3311, a folded ring part 3312, and a fixed part 3313. The vibration part 3311, the folded ring part 3312, and the fixed part 3313 are fixedly connected in sequence. The vibration part 3311 can have a rectangular structure. The folded ring part 3312 surrounds the outer periphery of the vibration part 3311 and connects the vibration part 3311; the folded ring part 3312 can have deformability, for example, the folded ring part 3312 can have an overall arc surface ring structure which is easy to deform and stretch, so that the vibration part 3311 can be displaced relative to the fixed part 3313. The fixed part 3313 of the first diaphragm 331 can be fixed to the upper support 311, so that the first diaphragm 331 is fixed to the upper support 311. For example, the second diaphragm 341 can include a vibration part 3411, a folded ring part 3412, and a fixed part 3413. The fixed part 3413 of the second diaphragm 341 can be fixed to the upper support 311, so that the second diaphragm 341 is fixed to the upper support 311. In this embodiment, the structure of the second diaphragm 341 is similar to that of the first diaphragm 331, and the structure of the second diaphragm 341 can be referred to the related description of the structure of the first diaphragm 331, which will not be described here.

[0196] In some embodiments, the first diaphragm 331 and the second diaphragm 341 can be arranged along the X-axis direction (i.e., the second direction). The first diaphragm 331 can be connected to the second diaphragm 341, for example, a portion of the periphery of the first diaphragm 331 can be connected to a portion of the periphery of the second diaphragm 341. In this way, the distance between the first diaphragm 331 and the second diaphragm 341 in the X-axis direction can be reduced, which is conducive to reducing the size of the loudspeaker 30 in the X-axis direction. In addition, at the connection between the first diaphragm 331 and the second diaphragm 341, the first diaphragm 331 and the second diaphragm 341 can share the same fixed position of the upper support 311, which is conducive to simplifying the structure of the loudspeaker 30. In some examples, the first diaphragm 331 and the second diaphragm 341 can be integrally formed. On the one hand, the manufacturing process of the first diaphragm 331 and the second diaphragm 341 can be simplified, the number of processes can be reduced, and the cost can be reduced; on the other hand, there is no gap between the first diaphragm 331 and the second diaphragm 341, which is conducive to improving the sealing performance of the loudspeaker 30. In other examples, the first diaphragm 331 can also be fixedly connected to the second diaphragm 341 by bonding.

[0197] In other embodiments, the first diaphragm 331 and the second diaphragm 341 can also be arranged in the X-axis direction, and the present application does not make strict limitations in this regard.

[0198] Please refer to FIGS. 14A to 15, and FIG. 15 is a partial structural schematic diagram of the loudspeaker 30 in some embodiments shown in FIG. 2. FIG. 15 mainly shows the assembly structure schematic diagram of the upper support 311, the lower support 312, the magnetic circuit assembly 32, the first conductive branch 36, the second conductive branch 37, the first voice coil 332, the second voice coil 342, and the third vibration assembly 35.

[0199] In some embodiments, the first conductive branch 36 can be fixedly connected to the upper support 311 and located on a side of the upper support 311 facing away from the lower support 312. For example, the first conductive branch 36 can include a first portion 361 and a second portion 362 connected to the first portion 361, and the first portion 361 and the second portion 362 can be arranged along the X-axis direction. In FIG. 15, the first portion 361 and the second portion 362 are schematically distinguished by dashed lines. For example, the first portion 361 and the second portion 362 can be substantially rectangular. The periphery of the first portion 361 and the periphery of the second portion 362 can be fixedly connected to the upper support 311. For example, the first portion 361 of the first conductive branch 36 can be connected between the first diaphragm 331 and the upper support 311, so that the periphery of the first diaphragm 331 can be fixedly connected to the upper support 311 through the first portion 361 of the first conductive branch 36, and the first voice coil 332 can be connected to the vibrating portion of the first diaphragm 331 through the first portion 361 of the first conductive branch 36. The second portion 362 of the first conductive branch 36 can be connected between the second diaphragm 341 and the upper support 311, so that the periphery of the second diaphragm 341 can be fixedly connected to the upper support 311 through the second portion 362 of the first conductive branch 36, and the second voice coil 342 can be connected to the vibrating portion of the second diaphragm 341 through the second portion 362 of the first conductive branch 36. In other embodiments, the periphery of the first diaphragm 331 and the periphery of the second diaphragm 341 can also be fixed to the upper support 311.

[0200] In some embodiments, the first voice coil 332 can be fixedly connected to the first conductive branch 36 and located on a side of the first conductive branch 36 facing the magnetic circuit assembly 32. For example, the first portion 361 of the first conductive branch 36 can be located between the first voice coil 332 and the first diaphragm 331 and connected to the first voice coil 332 and the first diaphragm 331, so that the first voice coil 332 can be fixedly connected to the first diaphragm 331 through the first portion 361 of the first conductive branch 36.

[0201] For example, one end of the first voice coil 332 can be fixedly connected to the first portion 361 of the first conductive branch 36, and the other end of the first voice coil 332 can be located in the first magnetic gap 32a. For example, a portion of the other end of the first voice coil 332 can be located in the first sub-magnetic gap 321a of the first magnetic gap 32a, and a portion of the other end of the first voice coil 332 can be located in the fourth sub-magnetic gap 324a of the first magnetic gap 32a. Please refer to FIG. 4, when the other end of the first voice coil 332 is located in the first magnetic gap 32a, the other end of the first voice coil 332 can be arranged around the first magnetic portion 321A, and the second magnetic portion 322A, the fourth magnetic portion 321B, the fifth magnetic portion 322B and the sixth magnetic portion 323B can be located outside the first voice coil 332. In addition, gaps are left between the first voice coil 332 and the first magnetic portion 321A, the second magnetic portion 322A, the fourth magnetic portion 321B, the fifth magnetic portion 322B and the sixth magnetic portion 323B.

[0202] For example, one end of the first voice coil 332 can be fixedly connected to the first conductive branch 36 through the second connecting member 3321 to better meet the arrangement requirements. The second connecting member 3321 can be substantially frame-shaped, so that the first voice coil 332 can be uniformly connected to the first diaphragm 331 along the circumferential direction of the first voice coil 332.

[0203] In this embodiment, the first portion 361 of the first conductive branch 36 is in electrical conduction with the first voice coil 332. The first portion 361 of the first conductive branch 36 can be connected to an external power supply to supply power to the first voice coil 332. In this embodiment, when the first voice coil 332 is powered, the first voice coil 332 generates a force in the magnetic field of the magnetic circuit assembly 32, thereby pushing the first diaphragm 331 to vibrate, and the first diaphragm 331 pushes the air to vibrate to realize sound emission of the loudspeaker 30. The first voice coil 332 can receive an alternating signal to generate an alternating force in the magnetic field. The direction in which the first voice coil 332 pushes the first diaphragm 331 to vibrate is along the axial direction of the first voice coil 332, and the axial direction of the first voice coil 332 is the same as the thickness direction (i.e., the Z-axis direction) of the loudspeaker 30, and the vibration direction of the first diaphragm 331 is generally perpendicular to the first diaphragm 331 itself. In addition, the loudspeaker 30 can also control the vibration amplitude and direction of the first voice coil 332 and the first diaphragm 331 through an algorithm, so as to adjust the amplitude and phase of the sound wave generated by the first diaphragm 331.

[0204] In some embodiments, the second voice coil 342 can be fixedly connected to the first conductive branch 36 and located on the side of the first conductive branch 36 facing the magnetic circuit assembly 32. For example, the second portion 362 of the first conductive branch 36 can be located between the second voice coil 342 and the second diaphragm 341 and connected to the second voice coil 342 and the second diaphragm 341, so that the second voice coil 342 can be fixedly connected to the second diaphragm 341 through the second portion 362 of the first conductive branch 36.

[0205] For example, one end of the second voice coil 342 can be fixedly connected to the second portion 362 of the first conductive branch 36, and the other end of the second voice coil 342 can be located in the second magnetic gap 32b. For example, a portion of the other end of the second voice coil 342 can be located in the seventh sub-magnetic gap 321b (see FIG. 7D) of the second magnetic gap 32b, and a portion of the other end of the second voice coil 342 can be located in the tenth sub-magnetic gap 324b (see FIG. 7D) of the second magnetic gap 32b. Please refer to FIG. 4, when the other end of the second voice coil 342 is located in the second magnetic gap 32b, the other end of the second voice coil 342 can be arranged around the third magnetic portion 323A, and the second magnetic portion 322A, the fourth magnetic portion 321B, the fifth magnetic portion 322B and the seventh magnetic portion 324B can be located outside the second voice coil 342. In addition, there is a gap between the second voice coil 342 and the second magnetic portion 322A, the third magnetic portion 323A, the fourth magnetic portion 321B, the fifth magnetic portion 322B and the seventh magnetic portion 324B.

[0206] For example, one end of the second voice coil 342 can be fixedly connected to the third connecting piece 3421 to better meet the arrangement requirements. The third connecting piece 3421 can be substantially frame-shaped, so that the second voice coil 342 can be uniformly connected to the first diaphragm 331 along the circumferential direction of the second voice coil 342.

[0207] In the present embodiment, the second portion 362 of the first conductive branch 36 is in electrical conduction with the second voice coil 342. The second portion 362 of the first conductive branch 36 can be connected with an external power source to supply power to the second voice coil 342. In the present embodiment, when the second voice coil 342 is powered, the second voice coil 342 generates a force in the magnetic field of the magnetic circuit assembly 32, thereby pushing the first diaphragm 331 to vibrate, and the first diaphragm 331 pushes the air to vibrate to realize sound emission of the loudspeaker 30. The second voice coil 342 can receive an alternating signal and generate an alternating force in the magnetic field. The direction in which the second voice coil 342 pushes the first diaphragm 331 to vibrate is along the axial direction of the second voice coil 342, and the axial direction of the second voice coil 342 is the same as the thickness direction (i.e., the Z-axis direction) of the loudspeaker 30, and the vibration direction of the first diaphragm 331 is generally perpendicular to the first diaphragm 331 itself. In addition, the loudspeaker 30 can also control the vibration amplitude and direction of the second voice coil 342 and the second diaphragm 341 through an algorithm, so as to adjust the amplitude and phase of the sound wave generated by the second diaphragm 341.

[0208] In other embodiments, the first diaphragm 331 and the second diaphragm 341 can also be driven by the same voice coil. At this time, the voice coil is connected with the first diaphragm 331 and the second diaphragm 341, and the voice coil can be used to drive the first diaphragm 331 and the second diaphragm 341 to vibrate together.

[0209] Please refer to FIGS. 14A and 14B, in some embodiments, the periphery of the third diaphragm 351 can be fixedly connected to the side surface of the lower support 312 facing away from the upper support 311. It can be understood that the side surface of the lower support 312 facing away from the upper support 311 is the second surface 31b of the support 31. The third diaphragm 351 is oppositely arranged with the magnetic circuit assembly 32. At this time, a part of the magnetic circuit assembly 32 can be located between the third diaphragm 351 and the first diaphragm 331, and a part of the magnetic circuit assembly 32 can be located between the third diaphragm 351 and the second diaphragm 341. The main body part 3281 of the first magnetic conductive part 328 of the magnetic circuit assembly 32 can be located at the side of the first magnetic part 321, the second magnetic part 322 and the third magnetic part 323 close to the third diaphragm 351. It can be understood that in the present embodiment, a part of the third diaphragm 351 can be oppositely arranged with the first diaphragm 331, and a part of the third diaphragm 351 can be oppositely arranged with the second diaphragm 341. In this way, the loudspeaker 30 occupies less space in the X-axis direction, which is conducive to the miniaturization of the loudspeaker 30.

[0210] Exemplarily, the third diaphragm 351 can include a vibrating portion 3511, a folded ring portion 3512, and a fixed portion 3513. In the embodiment, the structure of the third diaphragm 351 is similar to that of the first diaphragm 331, and the structure of the third diaphragm 351 can refer to the related description of the structure of the first diaphragm 331, which will not be repeated here. The fixed portion 3513 of the third diaphragm 351 can be fixed to the lower support 312, so that the third diaphragm 351 is fixed to the lower support 312. Among them, the folded ring portion 3512 and the vibrating portion 3511 correspond to the middle hollow position of the lower support 312, and the avoiding groove 3122 of the lower support 312 is used to avoid the deformation movement of the folded ring portion 3512. In addition, the vibrating portion 3511 and the folded ring portion 3512 of the third diaphragm 351 have a moving space with the magnetic circuit assembly 32, so as to vibrate the third diaphragm 351.

[0211] In some embodiments, the number of the third voice coil 352 can be one. One end of the third voice coil 352 can be fixedly connected to the third diaphragm 351, for example, one end of the third voice coil 352 can be fixedly connected to the vibrating portion 3511 of the third diaphragm 351 through the first connecting piece 3520. Part of the other end of the third voice coil 352 can be located in the first magnetic gap 32a, for example, part of the other end of the third voice coil 352 can be located in the second sub-magnetic gap 322a and the third sub-magnetic gap 323a of the first magnetic gap 32a, and part of the other end of the third voice coil 352 can be located in the fifth sub-magnetic gap 325a and the sixth sub-magnetic gap 326a of the first magnetic gap 32a. Part of the other end of the third voice coil 352 can be located in the second magnetic gap 32b, for example, part of the other end of the third voice coil 352 can be located in the eighth sub-magnetic gap 322b and the ninth sub-magnetic gap 323b of the second magnetic gap 32b (see FIG. 7D), for example, part of the other end of the third voice coil 352 can be located in the eleventh sub-magnetic gap 325b and the twelfth sub-magnetic gap 326b of the second magnetic gap 32b (see FIG. 7D). At this time, the other end of the third voice coil 352 can be arranged around the inner magnetic portion 32A, and the outer magnetic portion 32B can be located at the outer periphery of the other end of the third voice coil 352.

[0212] Exemplarily, the other end of the third voice coil 352 can be fixedly connected to the second conductive branch 37 (see FIG. 12) and electrically connected to the second conductive branch 37. For example, the third voice coil 352 can be substantially a rectangular frame, and the four corner portions of the third voice coil 352 can be fixedly connected to the second conductive branch 37 and electrically connected to the second conductive branch 37. Among them, two adjacent corner portions of the third voice coil 352 can be fixedly connected to the first sub-branch 371 and electrically connected to the first sub-branch 371. The other two adjacent corner portions of the third voice coil 352 can be fixedly connected to the second sub-branch 372 and electrically connected to the second sub-branch 372.

[0213] In the embodiment, the first sub-branch 371 and the second sub-branch 372 of the second conductive branch 37 can be connected with an external power supply, so that the second conductive branch 37 can supply power to the third voice coil 352. When the third voice coil 352 is powered, the third voice coil 352 generates a force in the magnetic field of the magnetic circuit assembly 32, so as to push the third diaphragm 351 to vibrate, and the third diaphragm 351 pushes the air to vibrate, so as to realize sound generation of the loudspeaker 30. The third voice coil 352 can receive an alternating signal and generate an alternating force in the magnetic field. The direction in which the third voice coil 352 pushes the third diaphragm 351 to vibrate is along the axial direction of the third voice coil 352, the axial direction of the third voice coil 352 is the same as the thickness direction (i.e., the Z-axis direction) of the loudspeaker 30, and the vibration direction of the third diaphragm 351 is generally perpendicular to the third diaphragm 351 itself. In addition, the loudspeaker 30 can also control the vibration amplitude and direction of the third voice coil 352 and the third diaphragm 351 through an algorithm, so as to adjust the amplitude and phase of the sound wave generated by the third diaphragm 351.

[0214] In the embodiment, the first magnetic gap 32a can have a first opening K1 and a second opening K2 arranged back to back. The first opening K1 of the first magnetic gap 32a is arranged opposite to the first diaphragm 331, and the second opening K2 of the first magnetic gap 32a is arranged opposite to the third diaphragm 351. The other end of the first voice coil 332 can extend into the first magnetic gap 32a through the first opening K1. Part of the other end of the third voice coil 352 can extend into the first magnetic gap 32a through the second opening K2. The second magnetic gap can have a third opening K3 and a fourth opening K4 arranged back to back. The third opening K3 of the second magnetic gap 32b is arranged opposite to the second diaphragm 341, and the fourth opening K4 of the second magnetic gap 32b is arranged opposite to the third diaphragm 351. The other end of the second voice coil 342 can extend into the second magnetic gap 32b through the third opening K3, and part of the other end of the third voice coil 352 can extend into the second magnetic gap 32b through the fourth opening K4.

[0215] In the embodiment, the fourth magnetic part 321B of the magnetic circuit assembly 32 is arranged to be spaced apart from the second magnetic part 322A, so that the magnetic field in the first magnetic gap 32a and the second magnetic gap 32b of the magnetic circuit assembly 32 is strong, thereby strengthening the magnetic driving effect of the first voice coil 332 arranged in the first magnetic gap 32a and the second voice coil 342 arranged in the second magnetic gap 32b, that is, the driving force of the first voice coil 332 and the second voice coil 342 is strengthened. In this way, when the third voice coil 352, the first voice coil 332 and the second voice coil 342 vibrate at the same time, the balance between each vibration assembly is good, and the output of the first voice coil 332 and the second voice coil 342 can be prevented from being inhibited due to the too large difference in driving force, so that the first voice coil 332 and the second voice coil 342 are not easily disturbed by the third voice coil 352, and the vibration effect of the first diaphragm 331 and the second diaphragm 341 is improved.

[0216] In some embodiments, the projection along the direction from the first diaphragm 331 to the third diaphragm 351 (i.e., the Z-axis direction) is such that, in a plane perpendicular to the Z-axis direction (i.e., the XY plane), the projection of the first voice coil 332 is the first projection, the projection of the second voice coil 342 is the second projection, and the projection of the third voice coil 352 is the third projection. The first projection, the second projection, and the third projection are all spaced apart. In this way, when the first voice coil 332, the second voice coil 342, and the third voice coil 352 vibrate along the Z-axis direction, interference is less likely to occur between the first voice coil 332 and the third voice coil 352, and between the second voice coil 342 and the third voice coil 352. This avoids interference between the first voice coil 332, the second voice coil 342, and the third voice coil 352, which could affect the vibration of the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351. It also avoids damage to the first voice coil 332, the second voice coil 342, and the third voice coil 352 due to collisions.

[0217] In some embodiments, when the first voice coil 332, the second voice coil 342, and the third voice coil 352 vibrate, the first voice coil 332 and the third voice coil 352 may overlap in the Z-axis direction, and / or the second voice coil 342 and the third voice coil 352 may overlap in the Z-axis direction. This allows for greater utilization of the space in the thickness direction of the speaker 30, which is beneficial for reducing the thickness of the speaker 30 and thus for miniaturizing the speaker 30.

[0218] Please refer to Figures 16A to 17. Figure 16A is a structural schematic diagram of the first housing 38 shown in Figure 3 in some embodiments. Figure 16B is a structural schematic diagram of the first housing 38 shown in Figure 16A from another angle. Figure 17 is a partial exploded view of the first housing 38 shown in Figure 3 in some embodiments.

[0219] In some embodiments, the first housing 38 may be provided with a first sound outlet 381 and a second sound outlet 382. Both the first sound outlet 381 and the second sound outlet 382 are connected to the outside of the first housing 38, and the first sound outlet 381 and the second sound outlet 382 are spaced apart. It is understood that the interiors of the first sound outlet 381 and the second sound outlet 382 are not connected.

[0220] For example, the first housing 38 may include a main body 383 and a cover plate 384. The main body 383 may include a top surface 3831, a bottom surface 3832, and a side surface 3833. The top surface 3831 and the bottom surface 3832 of the main body 383 are arranged opposite to each other. For example, the top surface 3831 and the bottom surface 3832 may be arranged opposite to each other along the Z-axis direction. The side surface 3833 may be connected between the top surface 3831 and the bottom surface 3832.

[0221] Exemplarily, the main body 383 can be provided with a first mounting slot 3834 and a second mounting slot 3835. The opening of the first mounting slot 3834 can be located on the top surface 3831 of the main body 383, and the opening of the second mounting slot 3835 can be located on the bottom surface 3832 of the main body 383. The first mounting slot 3834 and the second mounting slot 3835 can be substantially rectangular.

[0222] Exemplarily, the main body 383 is further provided with a first through hole 3836 and a second through hole 3837 which are spaced apart, for example, the first through hole 3836 and the second through hole 3837 can be spaced apart along the X-axis direction. The first through hole 3836 and the second through hole 3837 both penetrate the slot bottom wall of the first mounting slot 3834 and the slot bottom wall of the second mounting slot 3835. At this time, the first mounting slot 3834 and the second mounting slot 3835 can be located on the two sides opposite to the first through hole 3836 respectively, and communicate with the first through hole 3836; the first mounting slot 3834 and the second mounting slot 3835 can be located on the two sides opposite to the second through hole 3837 respectively, and communicate with the second through hole 3837.

[0223] In some embodiments, the main body 383 is further provided with a first protruding portion 3838 and a second protruding portion 3839. The first protruding portion 3838 can protrude away from the top surface 3831 from a part of the bottom surface 3832 of the main body 383. The first protruding portion 3838 can be located on one side of the second mounting slot 3835. It can be understood that, in the Z-axis direction projection, in the plane perpendicular to the Z-axis direction, that is, in the X-Y plane, the projection of the first protruding portion 3838 does not overlap with the projection of the second mounting slot 3835.

[0224] Exemplarily, at least part of the first sound outlet hole 381 can be located on the first protruding portion 3838, one end opening of the first sound outlet hole 381 can be located on the bottom surface of the first protruding portion 3838, and the other end opening of the first sound outlet hole 381 can penetrate the slot bottom wall of the first mounting slot 3834 and extend to the first through hole 3836, that is, the other end opening of the first sound outlet hole 381 can communicate with the first through hole 3836.

[0225] Exemplarily, the one end opening of the first sound outlet hole 381 can be a strip-shaped opening. Of course, in other embodiments, the shape of the one end opening of the first sound outlet hole 381 can be rectangular, circular or other shapes, which are not strictly limited in the present application.

[0226] In some embodiments, the main body 383 is further provided with a second protruding portion 3839. The second protruding portion 3839 can protrude from a portion of the side surface 3833 of the main body 383 in a direction away from the interior of the main body 383. At least a portion of the second sound outlet hole 382 can be located in the second protruding portion 3839, one end opening of the second sound outlet hole 382 can be located in the side surface of the second protruding portion 3839, and the other end opening of the second sound outlet hole 382 can pass through the slot bottom wall of the first mounting slot 3834 and extend to the second through hole 3837, that is, the other end opening of the second sound outlet hole 382 can communicate with the second through hole 3837.

[0227] For example, the one end opening of the second sound outlet hole 382 can be a rectangular opening. Of course, in other embodiments, the shape of the one end opening of the second sound outlet hole 382 can be a strip shape, a circular shape, or other shapes, which are not strictly limited in the present application.

[0228] In some embodiments, the cover plate 384 can be fixed to the main body 383 and cover the first through hole 3836, the second through hole 3837, the other end opening of the first sound outlet hole 381, and the other end opening of the second sound outlet hole 382 of the main body 383. For example, the cover plate 384 can be mounted to the first mounting slot 3834.

[0229] For example, the cover plate 384 can have a first protruding portion 3841 and a second protruding portion 3842. The first protruding portion 3841 and the second protruding portion 3842 can both protrude from a portion of the cover plate 384 in a direction away from the first through hole 3836 and the second through hole 3837. The first protruding portion 3841 and the second protruding portion 3842 are spaced apart. The first protruding portion 3841 can cover the first through hole 3836 and the other end opening of the first sound outlet hole 381. The second protruding portion 3842 can cover the second through hole 3837 and the other end opening of the second sound outlet hole 382.

[0230] Please refer to FIG. 17 and FIG. 18A, which is a partial cross-sectional structure schematic diagram of the loudspeaker 30 shown in FIG. 2 along G-G in some embodiments.

[0231] In some embodiments, the first shell 38 can be mounted to the upper support 311. At least a portion of the first shell 38 can be located on the side of the first diaphragm 331 and the second diaphragm 341 away from the third diaphragm 351 and jointly enclose the first cavity 3310 with the first diaphragm 331 and the second cavity 3410 with the second diaphragm 341.

[0232] Exemplarily, the main body part 383 of the first casing 38 can be fixedly connected to the upper support 311, the main body part 383 of the first casing 38 can surround the upper support 311, and a part of the main body part 383 can be located in the mounting groove 3117 of the upper support 311. At this time, a part of the upper support 311 can be located in the second mounting groove 3835 of the first casing 38. The cover plate 384 of the first casing 38 can cover the first diaphragm 331 and the second diaphragm 341.

[0233] In some examples, the first casing 38 and the upper support 311 can be provided with positioning structures, for example, the first casing 38 can be provided with a protrusion, and the upper support 311 can be provided with a groove. In this way, the first casing 38 and the upper support 311 can be matched with each other through the protrusion and the groove, so as to realize accurate positioning of the first casing 38 and the upper support 311, thereby improving the installation accuracy of the first casing 38 and the upper support 311.

[0234] In some embodiments, the fixed part 3313 of the first diaphragm 331 can be fixedly connected to the first casing 38, and at least a part of the fixed part 3313 of the first diaphragm 331 can be located in the second mounting groove 3835 of the first casing 38. The folded ring part 3312 and the vibration part 3311 of the first diaphragm 331 can be exposed relative to the first through hole 3836 of the first casing 38. At this time, the folded ring part 3312 and the vibration part 3311 of the first diaphragm 331 can be arranged opposite to the first protruding part 3841 of the cover plate 384. It can be understood that the first protruding part 3841 of the cover plate 384 can be used to avoid the folded ring part 3312 of the first diaphragm 331, so as to provide sufficient space for the vibration of the first diaphragm 331.

[0235] Exemplarily, the first diaphragm 331 and the first casing 38 can jointly enclose the first cavity 3310, and the first cavity 3310 communicates with the first sound hole 381. The sound waves generated by the vibration of the first diaphragm 331 can be propagated to the outside of the loudspeaker 30 through the first cavity 3310 and the first sound hole 381.

[0236] Please refer to FIG. 18A and FIG. 18B, FIG. 18B is a partial cross-sectional structure schematic diagram of the loudspeaker 30 shown in FIG. 2 along H-H in some embodiments.

[0237] In some embodiments, the fixed portion 3413 of the second diaphragm 341 can be fixedly connected to the first housing 38, and at least part of the fixed portion 3413 of the second diaphragm 341 can be located in the second mounting groove 3835 of the first housing 38. The folded ring portion 3412 and the vibrating portion 3411 of the second diaphragm 341 can be exposed relative to the second through hole 3837 of the first housing 38. At this time, the folded ring portion 3412 and the vibrating portion 3411 of the second diaphragm 341 can be arranged opposite to the second convex portion 3842 of the cover plate 384. It can be understood that the second convex portion 3842 of the cover plate 384 can be used to avoid the folded ring portion 3412 of the second diaphragm 341, so as to provide sufficient space for the vibration of the second diaphragm 341.

[0238] For example, the second diaphragm 341 and the first housing 38 can jointly enclose a second cavity 3410, and the second cavity 3410 communicates with the second sound hole 382. The sound waves generated by the vibration of the second diaphragm 341 can propagate to the outside of the loudspeaker 30 through the second cavity 3410 and the second sound hole 382.

[0239] For example, the second sound hole 382 has a first hole wall 3821, and the first hole wall 3821 is away from the cover plate 384 in the direction from the second cavity 3410 to the second sound hole 382, that is, along the Y-axis direction, so as to expand the internal space of the second sound hole 382, and make the gas in the second cavity 3410 flow more smoothly.

[0240] In the present embodiment, the second cavity 3410 is arranged spaced apart from the first cavity 3310. It can be understood that the gas flow between the second cavity 3410 and the first cavity 3310 is not communicated. In this way, the sound waves generated by the second diaphragm 341 and the sound waves generated by the first diaphragm 331 are not easy to interfere with each other. In addition, one end opening of the first sound hole 381 can be directed towards the bottom side of the first housing 38, and one end opening of the second sound hole 382 can be directed towards the outer peripheral side of the first housing 38, so that the sound waves generated by the first diaphragm 331 can propagate to the bottom side of the loudspeaker 30 through the first sound hole 381, and the sound waves generated by the second diaphragm 341 can propagate to the outer peripheral side of the loudspeaker 30 through the second sound hole 382, thereby reducing the risk of mutual interference between the sound waves generated by the first diaphragm 331 and the sound waves generated by the second diaphragm 341. In other embodiments, one end opening of the first sound hole 381 can also be directed towards the top side or the outer peripheral side of the first housing 38, or one end opening of the second sound hole 382 can also be directed towards the top side or the bottom side of the first housing 38. It can be understood that the structure of the first sound hole 381 and the second sound hole 382, and the specific position of the opening of the first sound hole 381 and the second sound hole 382 can be designed according to actual needs, and the present application does not make strict limitations thereon.

[0241] In addition, in the embodiment of the present application, by arranging the first diaphragm 331 and the second diaphragm 341 along the second direction (i.e., the X-axis direction), the first housing 38 and the first diaphragm 331 and the second diaphragm 341 are arranged to form the first chamber 3310 and the second chamber 3410, respectively, thereby facilitating simplification of the structure of the loudspeaker 30.

[0242] In the embodiment of the present application, the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351 can vibrate in the same direction. It can be understood that the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351 can simultaneously move towards the same side of the loudspeaker 30, for example, the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351 can simultaneously move towards the top side of the loudspeaker 30 or simultaneously move towards the bottom side of the loudspeaker 30. At this time, the phases of the sound waves generated by the first diaphragm 331 and the second diaphragm 341 are opposite to the phase of the sound waves generated by the third diaphragm 351 (i.e., the phase difference is 180°), and the sound waves generated by the first diaphragm 331 and the third diaphragm 351 can at least partially cancel each other out, and the sound waves generated by the second diaphragm 341 and the third diaphragm 351 can at least partially cancel each other out, and the sound cancellation area is large, thereby effectively reducing the loudness of the loudspeaker 30, and facilitating improvement of the isolation of the loudspeaker 30. It can be understood that the isolation refers to the difference between the sound energy of the bright area and the sound energy of the dark area. The dark area refers to an area where no sound or less sound is desired. The bright area refers to an area where the main sound source is desired to propagate. In the embodiment of the present application, taking the electronic device 100 in a private call scene as an example, the dark area refers to an area outside the listener, such as the ear outside. The bright area refers to the listening area of the listener, such as the ear inside.

[0243] In the embodiment of the present application, the vibration frequencies of the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351 can be the same or similar, and at this time, the frequencies of the sound waves generated by the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351 can be the same or similar, which is conducive to mutual cancellation of the sound waves generated by the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351, thereby facilitating improvement of the isolation of the loudspeaker 30. It can be understood that in the embodiment of the present application, the frequency range of the sound waves generated by the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351 can be within the range of 20-20000Hz.

[0244] The first diaphragm 331 and the second diaphragm 341 can vibrate reversely with the third diaphragm 351. It can be understood that when the third diaphragm 351 moves towards one side of the loudspeaker 30, the first diaphragm 331 and the second diaphragm 341 move towards the other side of the loudspeaker 30, for example, when the third diaphragm 351 moves towards the bottom side of the loudspeaker 30, the first diaphragm 331 and the second diaphragm 341 can move towards the top side of the loudspeaker 30. At this time, the phases of the sound waves generated by the first diaphragm 331 and the second diaphragm 341 are the same as the phase of the sound waves generated by the third diaphragm 351, and the sound waves generated by the first diaphragm 331 and the second diaphragm 341 can be superimposed with the sound waves generated by the third diaphragm 351, thereby increasing the loudness of the loudspeaker 30.

[0245] Please refer to FIG. 18A and FIG. 19, FIG. 19 is a structural schematic diagram of the loudspeaker 30 shown in FIG. 2 from another angle.

[0246] In some embodiments, the second shell 39 can be fixedly connected to the lower support 312, and at least part of the second shell 39 can be located on the side of the third diaphragm 351 away from the first diaphragm 331 and the second diaphragm 341. For example, the second shell 39 can be fixed to the fixed part 3513 of the third diaphragm 351. It can be understood that the second shell 39 can be fixedly connected to the lower support 312 through the third diaphragm 351.

[0247] For example, the second shell 39 can be substantially a rectangular frame. The middle part of the second shell 39 can be provided with a third sound hole 391, and the third sound hole 391 can penetrate through the second shell 39.

[0248] For example, the second shell 39 and the third diaphragm 351 can jointly enclose a third cavity 3510, and the third sound hole 391 of the second shell 39 is arranged opposite to the third diaphragm 351. The third cavity 3510 can be communicated with the outside of the loudspeaker 30 through the third sound hole 391. The sound waves generated by the vibration of the third diaphragm 351 can be propagated to the outside of the loudspeaker 30 through the third cavity 3510 and the third sound hole 391.

[0249] In some embodiments, the loudspeaker 30 can further include a damping net 390. The damping net 390 can be arranged on the second shell 39 and cover the third sound hole 391. For example, the damping net 390 can be fixed to the second shell 39 by adhesion or the like. In this embodiment, by arranging the damping net 390, on the one hand, impurities or the like outside the loudspeaker 30 can be prevented from entering the inside of the loudspeaker 30 through the third sound hole 391, and on the other hand, the damping coefficient of the damping net 390 can be adjusted to adjust the acoustic performance of the loudspeaker 30, thereby improving the sound quality of the loudspeaker 30.

[0250] Please refer to FIG. 18A, FIG. 20A and FIG. 20B, FIG. 20A is a dipole sound radiation pattern formed by a conventional dual-diaphragm loudspeaker, and FIG. 20B is a multipole sound radiation pattern formed by the loudspeaker provided in the present application.

[0251] In the embodiments of the present application, when the first diaphragm 331, the second diaphragm 341 and the third diaphragm 351 vibrate in the same direction and the amplitudes of the first diaphragm 331, the second diaphragm 341 and the third diaphragm 351 are the same, the first diaphragm 331 can form a dipole with the third diaphragm 351, and the second diaphragm 341 can form a dipole with the third diaphragm 351. At this time, the sound waves generated by the first diaphragm 331 and the sound waves generated by the third diaphragm 351 can completely cancel each other out in some areas to form a dark area, and the sound waves generated by the second diaphragm 341 and the sound waves generated by the third diaphragm 351 can completely cancel each other out in some areas to form a dark area, and the two dark areas can at least partially overlap, thereby widening the width of the dark area of the loudspeaker 30 and further improving the isolation of the loudspeaker 30. It can be understood that a multipole can be formed between the first diaphragm, the second diaphragm 341 and the third diaphragm 351, and the dark area width of the multipole is greater than the dark area width of the dipole.

[0252] In addition, in the embodiments of the present application, the loudspeaker 30 can also control the amplitudes and vibration directions of the first diaphragm 331, the second diaphragm 341 and the third diaphragm 351 through an algorithm, so that the sound waves generated by the first diaphragm 331 and the third diaphragm 351 can completely cancel each other out in some areas, and the sound waves generated by the second diaphragm 341 and the third diaphragm 351 can completely cancel each other out in some areas, so as to improve the isolation of the loudspeaker 30, thereby improving the call privacy effect of the electronic device 100.

[0253] In some embodiments, the loudspeaker 30 can not include the first housing 38 and / or the second housing 39.

[0254] Please refer to FIG. 21, which is a partial structure exploded view of the loudspeaker 30 shown in FIG. 2 in some other embodiments. It can be understood that FIG. 21 and the relevant drawings below only schematically show some components included in the loudspeaker 30, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 21 and the drawings below.

[0255] In some embodiments, the loudspeaker 30 can include a bracket 31, a magnetic circuit assembly 32, a first vibration assembly 33, a second vibration assembly 34, a third vibration assembly 35, a first conductive branch 36, a second conductive branch 37, a first housing 38, and a second housing 39. The bracket can include an upper bracket 311 and a lower bracket 312. The first vibration assembly 33 can include a first diaphragm 331 and a first voice coil 332. The second vibration assembly 34 can include a second diaphragm 341 and a second voice coil 342. The third vibration assembly 35 can include a third diaphragm 351 and a third voice coil 352. The third voice coil 352 can include a first sub-voice coil 3521 and a second sub-voice coil 3522 arranged in a spaced manner. It can be understood that the loudspeaker 30 can include more or fewer components. For example, the loudspeaker 30 can have fewer components, and the loudspeaker 30 can not include the first housing 38 and / or the second housing 39. The loudspeaker 30 of the present embodiment can include most of the technical content of the previous embodiments, and the following mainly describes the differences between the two, and most of the scheme content of the two is not described again.

[0256] Please refer to FIG. 22 and FIG. 23, FIG. 22 is a structural schematic diagram of the magnetic circuit assembly 32 shown in FIG. 21 in some embodiments, and FIG. 23 is a partial structural exploded view of the magnetic circuit assembly 32 shown in FIG. 22 in some embodiments.

[0257] In the present embodiment, the magnetic circuit assembly 32 can include an inner magnetic part 32A and an outer magnetic part 32B, and the outer magnetic part 32B can be arranged around the inner magnetic part 32A. For example, the inner magnetic part 32A can include a first magnetic member 321, a second magnetic member 322, and a third magnetic member 323. The outer magnetic part 32B can include a fourth magnetic member 324, a fifth magnetic member 325, a sixth magnetic member 326, and a seventh magnetic member 327. The design scheme of the magnetic circuit assembly 32 of the present embodiment is similar to that of the magnetic circuit assembly 32 of the previous embodiment, and the difference is that:

[0258] In the present embodiment, the magnetic circuit assembly 32 can further include a first magnetic conductive member 328, a second magnetic conductive member 329, a first magnetic conductive part 3210, a second magnetic conductive part 3220, a third magnetic conductive part 3230, a fourth magnetic conductive part 3240, and a fifth magnetic conductive part 3250. The fourth magnetic member 324, the fifth magnetic member 325, the sixth magnetic member 326, and the seventh magnetic member 327 can be arranged around and spaced apart from the first magnetic member 321, the second magnetic member 322, and the third magnetic member 323. The first magnetic conductive member 328 and the second magnetic conductive member 329 can be made of high magnetic conductive material.

[0259] Exemplarily, the first magnetic conductive member 328 can include a first body portion 3281a, a second body portion 3281b, a third body portion 3281c, a first connecting portion 3288a, a second connecting portion 3288b, a third connecting portion 3288c, a fourth connecting portion 3288d, a first side portion 3289a, and a second side portion 3289b. In a direction perpendicular to the Z-axis direction, for example, the X-axis direction, the first side portion 3289a, the first body portion 3281a, the second body portion 3281b, the third body portion 3281c, and the second side portion 3289b can be arranged in sequence. The first connecting portion 3288a can be connected between the first body portion 3281a and the first side portion 3289a, the second connecting portion 3288b can be connected between the first body portion 3281a and the second body portion 3281b, the third connecting portion 3288c can be connected between the second body portion 3281b and the third body portion 3281c, and the fourth connecting portion 3288d can be connected between the third body portion 3281c and the second side portion 3289b.

[0260] Exemplarily, the first connecting portion 3288a and the second connecting portion 3288b can be bent towards the same side of the first body portion 3281a, for example, in the Z-axis direction, the first connecting portion 3288a and the second connecting portion 3288b can be located on the same side of the first body portion 3281a. At this time, the first connecting portion 3288a and the second connecting portion 3288b can be arranged at an angle with respect to the first body portion 3281a, and the first connecting portion 3288a and the second connecting portion 3288b can be arranged opposite and spaced apart. Exemplarily, the first connecting portion 3288a and the first body portion 3281a can be arranged perpendicularly, and / or the second connecting portion 3288b and the first body portion 3281a can be arranged perpendicularly. At this time, the first connecting portion 3288a and the second connecting portion 3288b can be arranged opposite and spaced apart.

[0261] Exemplarily, in the Z-axis direction, one end of the first connecting portion 3288a is connected to the first body portion 3281a, and the other end of the first connecting portion 3288a is connected to the first side portion 3289a, and in a direction perpendicular to the Z-axis direction, for example, in the X-axis direction, at least part of the first side portion 3289a and the first body portion 3281a can be located on opposite sides of the first connecting portion 3288a, respectively. It can be understood that, in a direction perpendicular to the first direction, for example, in the X-axis direction, the first side portion 3289a can be located entirely on the side of the first connecting portion 3288a away from the first body portion 3281a, or the first side portion 3289a can be located partially on the side of the first connecting portion 3288a away from the first body portion 3281a.

[0262] Exemplarily, one end of the second connecting portion 3288b connects the first body portion 3281a, and the other end of the second connecting portion 3288b connects the second body portion 3281b along the Z-axis direction, and at least part of the second body portion 3281b and the first body portion 3281a can be respectively located on opposite sides of the second connecting portion 3288b in a direction perpendicular to the Z-axis direction, for example, in the X-axis direction. It can be understood that the second body portion 3281b can be entirely located on one side of the second connecting portion 3288b away from the first body portion 3281a, or the second body portion 3281b can be partially located on one side of the second connecting portion 3288b away from the first body portion 3281a in a direction perpendicular to the first direction, for example, in the X-axis direction.

[0263] Exemplarily, one end of the third connecting portion 3288c connects the third body portion 3281c, and the other end of the third connecting portion 3288c connects the second body portion 3281b along the Z-axis direction, and at least part of the third body portion 3281c and the second body portion 3281b can be respectively located on opposite sides of the third connecting portion 3288c in a direction perpendicular to the Z-axis direction, for example, in the X-axis direction. It can be understood that the second body portion 3281b can be entirely located on one side of the third connecting portion 3288c away from the third body portion 3281c, or the second body portion 3281b can be partially located on one side of the third connecting portion 3288c away from the third body portion 3281c in a direction perpendicular to the first direction, for example, in the X-axis direction.

[0264] Exemplarily, one end of the third connecting portion 3288c connects the third body portion 3281c, and the other end of the third connecting portion 3288c connects the second body portion 3281b along the Z-axis direction, and at least part of the third body portion 3281c and the second body portion 3281b can be respectively located on opposite sides of the third connecting portion 3288c in a direction perpendicular to the Z-axis direction, for example, in the X-axis direction. It can be understood that the second body portion 3281b can be entirely located on one side of the third connecting portion 3288c away from the third body portion 3281c, or the second body portion 3281b can be partially located on one side of the third connecting portion 3288c away from the third body portion 3281c in a direction perpendicular to the first direction, for example, in the X-axis direction.

[0265] Exemplarily, along the Z-axis direction, one end of the fourth connecting portion 3288d is connected with the third main body portion 3281c, and the other end of the fourth connecting portion 3288d is connected with the second side portion 3289b, and in a direction perpendicular to the Z-axis direction, for example, in the X-axis direction, at least portions of the third main body portion 3281c and the second side portion 3289b can be located on opposite sides of the fourth connecting portion 3288d, respectively. It can be understood that, in a direction perpendicular to the first direction, for example, in the X-axis direction, the second side portion 3289b can be located entirely on a side of the fourth connecting portion 3288d away from the third main body portion 3281c, or the second side portion 3289b can be located partially on a side of the fourth connecting portion 3288d away from the third main body portion 3281c.

[0266] Please refer to FIGS. 22-24, FIG. 24 is a schematic diagram of the magnetic circuit assembly 32 shown in FIG. 22 partially sectioned along J-J in some embodiments.

[0267] In this embodiment, the fourth magnetic member 324, the fifth magnetic member 325, the sixth magnetic member 326, and the seventh magnetic member 327 can be fixed on the same side of the second magnetic conductive member 329. Among them, the fourth magnetic member 324 and the fifth magnetic member 325 can be located on the two long edges of the second magnetic conductive member 329, and the sixth magnetic member 326 and the seventh magnetic member 327 can be located on the two short edges of the second magnetic conductive member 329. Exemplarily, the fourth magnetic conductive portion 3240 can be fixed on a side of the fourth magnetic member 324 away from the second magnetic conductive member 329. The fifth magnetic conductive portion 3250 can be fixed on a side of the fifth magnetic member 325 away from the second magnetic conductive member 329.

[0268] In this embodiment, the second magnetic conductive member 329 can be arranged around the first main body portion 3281a and the third main body portion 3281c of the first magnetic conductive member 328. Among them, the portion of the first main body portion 3281a corresponding to the fourth magnetic member 324 and the portion of the second magnetic conductive member 329 corresponding to the fourth magnetic member 324 can be oppositely and spacedly arranged, and a part of the first magnetic gap 32a can be formed between the portion of the first main body portion 3281a corresponding to the fourth magnetic member 324 and the portion of the second magnetic conductive member 329 corresponding to the fourth magnetic member 324. The portion of the first main body portion 3281a corresponding to the fifth magnetic member 325 and the portion of the second magnetic conductive member 329 corresponding to the fifth magnetic member 325 can be oppositely and spacedly arranged, and a part of the first magnetic gap 32a can be formed between the portion of the first main body portion 3281a corresponding to the fifth magnetic member 325 and the portion of the second magnetic conductive member 329 corresponding to the fifth magnetic member 325.

[0269] The third main body part 3281c and the second magnetic conduction member 329 corresponding to the fourth magnetic member 324 can be arranged opposite and spaced apart, and the first main body part 3281a and the second magnetic conduction member 329 corresponding to the fourth magnetic member 324 can form part of the second magnetic gap 32b.

[0270] In the present embodiment, the first side part 3289a of the first magnetic conduction member 328 can be fixedly connected to the sixth magnetic member 326. For example, the first side part 3289a can be fixed to the side of the sixth magnetic member 326 facing away from the second magnetic conduction member 329. At this time, the sixth magnetic member 326 can be located in the space between the first side part 3289a and the first connecting part 3288a. For example, part of the first connecting part 3288a and the sixth magnetic member 326 can be arranged opposite and spaced apart, and part of the first connecting part 3288a and the sixth magnetic member 326 can form part of the first magnetic gap 32a. Part of the first connecting part 3288a and the second magnetic conduction member 329 corresponding to the sixth magnetic member 326 can be arranged opposite and spaced apart, and part of the first connecting part 3288a and the second magnetic conduction member 329 corresponding to the sixth magnetic member 326 can form part of the first magnetic gap 32a.

[0271] In the present embodiment, the second side part 3289b of the first magnetic conduction member 328 can be fixedly connected to the seventh magnetic member 327. For example, the second side part 3289b can be fixed to the side of the seventh magnetic member 327 facing away from the second magnetic conduction member 329. At this time, the seventh magnetic member 327 can be located in the space between the second side part 3289b and the fourth connecting part 3288d. For example, part of the fourth connecting part 3288d and the seventh magnetic member 327 can be arranged opposite and spaced apart, and part of the fourth connecting part 3288d and the seventh magnetic member 327 can form part of the second magnetic gap 32b. Part of the fourth connecting part 3288d and the second magnetic conduction member 329 corresponding to the seventh magnetic member 327 can be arranged opposite and spaced apart, and part of the fourth connecting part 3288d and the second magnetic conduction member 329 corresponding to the seventh magnetic member 327 can form part of the second magnetic gap 32b.

[0272] In the embodiment, the first magnetic piece 321 can be fixed to the first main body part 3281a of the first magnetic conducting piece 328, and the first magnetic piece 321 can be located between the first connecting part 3288a and the second connecting part 3288b. The first magnetic piece 321 is oppositely and spacedly arranged with a part of the first connecting part 3288a, and a part between the first magnetic piece 321 and the first connecting part 3288a can form a part of the first magnetic gap 32a. It can be understood that at least part of the first connecting part 3288a can be located between the first magnetic piece 321 and the sixth magnetic piece 326, so as to concentrate the magnetic field of the magnetic circuit assembly 32 into the magnetic gap, and enhance the magnetic field intensity in the magnetic gap. The first magnetic piece 321 is oppositely and spacedly arranged with a part of the second connecting part 3288b, and a part between the first magnetic piece 321 and the second connecting part 3288b can form a part of the first magnetic gap 32a. For example, the first magnetic piece 321 is oppositely and spacedly arranged with the fourth magnetic piece 324, and a part between the first magnetic piece 321 and the fourth magnetic piece 324 can form a part of the first magnetic gap 32a. The first magnetic piece 321 is oppositely and spacedly arranged with the fifth magnetic piece 325, and a part between the first magnetic piece 321 and the fifth magnetic piece 325 can form a part of the first magnetic gap 32a.

[0273] For example, the first magnetic conducting part 3210 can be fixed to the first magnetic piece 321 away from the first main body part 3281a. A part of the first magnetic conducting part 3210 is oppositely and spacedly arranged with the first side part 3289a, and a part between the first magnetic conducting part 3210 and the first side part 3289a can form a part of the first magnetic gap 32a. A part of the first magnetic conducting part 3210 is oppositely and spacedly arranged with the second main body part 3281b, and a part between the first magnetic conducting part 3210 and the second main body part 3281b can form a part of the first magnetic gap 32a. A part of the first magnetic conducting part 3210 is oppositely and spacedly arranged with the fourth magnetic conducting part 3240, and a part between the first magnetic conducting part 3210 and the fourth magnetic conducting part 3240 can form a part of the first magnetic gap 32a. A part of the first magnetic conducting part 3210 is oppositely and spacedly arranged with the fifth magnetic conducting part 3250, and a part between the first magnetic conducting part 3210 and the fifth magnetic conducting part 3250 can form a part of the first magnetic gap 32a.

[0274] In the present embodiment, the second magnetic member 322 can be fixed to the second main body portion 3281b of the first magnetic conducting member 328, and the second magnetic member 322 can be located between the second connecting portion 3288b and the third connecting portion 3288c. The second magnetic member 322 and a portion of the second connecting portion 3288b can be oppositely and spacedly arranged, and a portion between the second magnetic member 322 and the second connecting portion 3288b can form a portion of the first magnetic gap 32a. The second magnetic member 322 and a portion of the third connecting portion 3288c can be oppositely and spacedly arranged, and a portion between the second magnetic member 322 and the third connecting portion 3288c can form a portion of the second magnetic gap 32b.

[0275] For example, the second magnetic conducting portion 3220 can be fixed to the second magnetic member 322 away from the second main body portion 3281b. The second magnetic conducting portion 3220 and a portion of the second connecting portion 3288b can be oppositely and spacedly arranged, and a portion between the second magnetic conducting portion 3220 and the second connecting portion 3288b can form a portion of the first magnetic gap 32a. The second magnetic conducting portion 3220 and a portion of the third connecting portion 3288c can be oppositely and spacedly arranged, and a portion between the second magnetic conducting portion 3220 and the third connecting portion 3288c can form a portion of the second magnetic gap 32b.

[0276] In the present embodiment, the third magnetic member 323 can be fixed to the third main body portion 3281c of the first magnetic conducting member 328, and the third magnetic member 323 can be located between the third connecting portion 3288c and the fourth connecting portion 3288d. The third magnetic member 323 and a portion of the third connecting portion 3288c can be oppositely and spacedly arranged, and a portion between the third magnetic member 323 and the third connecting portion 3288c can form a portion of the second magnetic gap 32b. The third magnetic member 323 and a portion of the fourth connecting portion 3288d can be oppositely and spacedly arranged, and a portion between the third magnetic member 323 and the fourth connecting portion 3288d can form a portion of the second magnetic gap 32b. It can be understood that at least a portion of the fourth connecting portion 3288d can be located between the third magnetic member 323 and the seventh magnetic member 327, so as to concentrate the magnetic field of the magnetic circuit assembly 32 into the magnetic gap, and enhance the magnetic field intensity in the magnetic gap. For example, the third magnetic member 323 and the fourth magnetic member 324 can be oppositely and spacedly arranged, and a portion between the third magnetic member 323 and the fourth magnetic member 324 can form a portion of the second magnetic gap 32b. The third magnetic member 323 and the fifth magnetic member 325 can be oppositely and spacedly arranged, and a portion between the third magnetic member 323 and the fifth magnetic member 325 can form a portion of the second magnetic gap 32b.

[0277] Exemplarily, the third magnetic conductive part 3230 can be fixed to the third magnetic member 323 away from the third main part 3281c. A part of the third magnetic conductive part 3230 and the second side part 3289b can be oppositely and spacedly arranged, and a part between the third magnetic conductive part 3230 and the second side part 3289b can form a part of the second magnetic gap 32b. A part of the third magnetic conductive part 3230 and the second main part 3281b can be oppositely and spacedly arranged, and a part between the third magnetic conductive part 3230 and the second main part 3281b can form a part of the second magnetic gap 32b. A part of the third magnetic conductive part 3230 and the fourth magnetic conductive part 3240 can be oppositely and spacedly arranged, and a part between the third magnetic conductive part 3230 and the fourth magnetic conductive part 3240 can form a part of the second magnetic gap 32b. A part of the third magnetic conductive part 3230 and the fifth magnetic conductive part 3250 can be oppositely and spacedly arranged, and a part between the third magnetic conductive part 3230 and the fifth magnetic conductive part 3250 can form a part of the second magnetic gap 32b.

[0278] It can be understood that, in the embodiment, the first magnetic member 321, the first magnetic conductive part 3210 and the first main part 3281a of the first magnetic conductive member 328 can constitute a first magnetic part 321A. The second magnetic member 322, the second magnetic conductive part 3220 and the second main part 3281b of the first magnetic conductive member 328 can constitute a second magnetic part 322A. The third magnetic member 323, the third magnetic conductive part 3230 and the third main part 3281c of the first magnetic conductive member 328 can constitute a third magnetic part 323A. The fourth magnetic member 324, the fourth magnetic conductive part 3240 and the part of the second magnetic conductive member 329 corresponding to the fourth magnetic member 324 can constitute a fourth magnetic part 321B. The fifth magnetic member 325, the fifth magnetic conductive part 3250 and the part of the second magnetic conductive member 329 corresponding to the fifth magnetic member 325 can constitute a fifth magnetic part 322B. The sixth magnetic member 326, the first side part 3289a of the first magnetic conductive member 328 and the part of the second magnetic conductive member 329 corresponding to the sixth magnetic member 326 can constitute a sixth magnetic part 323B. The seventh magnetic member 327, the second side part 3289b of the first magnetic conductive member 328 and the part of the second magnetic conductive member 329 corresponding to the seventh magnetic member 327 can constitute a seventh magnetic part 324B.

[0279] It can be understood that, in the embodiment of the present application, the second magnetic part 322A and the first magnetic part 321A and the third magnetic part 323A can form a magnetic loop, and the fourth magnetic part 321B and the first magnetic part 321A and the third magnetic part 323A can form a magnetic loop. The magnetic field setting mode between the first magnetic part 321A, the second magnetic part 322, the third magnetic part 323A and the fourth magnetic part 321B is similar to the magnetic field setting mode between the first magnetic part 321A, the second magnetic part 322, the third magnetic part 323A and the fourth magnetic part 321B of the above embodiment, and the related description of the magnetic field setting mode between the first magnetic part 321A, the second magnetic part 322, the third magnetic part 323A and the fourth magnetic part 321B of the above embodiment can be referred to, and the details are not described here.

[0280] In the embodiment, the second magnetic part 322A and the fourth magnetic part 321B are spaced apart. For example, the second main body part 3281b of the first magnetic conducting part 328 and the fourth magnetic conducting part 324 are spaced apart, the second magnetic part 322 and the fourth magnetic part 324 are spaced apart, and the second magnetic conducting part 3220 and the second magnetic conducting part 329 correspond to the part structure of the fourth magnetic part 324. It can be understood that, along the Y-axis direction, the second main body part 3281b and the fourth magnetic part 324 are spaced apart. By spacing the second magnetic part 322A and the fourth magnetic part 321B, the second magnetic part 322A and the fourth magnetic part 321B can exist between the air cut-off, that is, the air cut-off between the magnetic parts of the same magnetic property, so as to increase the magnetic resistance between the second magnetic part 322A and the fourth magnetic part 321B, and prevent the magnetic field between the second magnetic part 322A and the fourth magnetic part 321B from being mutually offset to weaken the magnetic field.

[0281] It can be understood that, in the embodiment of the present application, the second magnetic part 322A and the first magnetic part 321A and the third magnetic part 323A can form a magnetic loop, and the fifth magnetic part 322B and the first magnetic part 321A and the third magnetic part 323A can form a magnetic loop. The magnetic field setting mode between the first magnetic part 321A, the second magnetic part 322A, the third magnetic part 323A and the fifth magnetic part 322B is similar to the magnetic field setting mode between the first magnetic part 321A, the second magnetic part 322A, the third magnetic part 323A and the fifth magnetic part 322B of the above embodiment, and the related description of the magnetic field setting mode between the first magnetic part 321A, the second magnetic part 322A, the third magnetic part 323A and the fifth magnetic part 322B of the above embodiment can be referred to, and the details are not described here.

[0282] In the embodiment, the second magnetic part 322A is spaced apart from the fifth magnetic part 322B. For example, the second main body part 3281b of the first magnetic conducting member 328 is spaced apart from the fifth magnetic conducting part 3250, the second magnetic member 322 is spaced apart from the fifth magnetic member 325, and the second magnetic conducting part 3220 is spaced apart from the part of the second magnetic conducting member 329 corresponding to the fifth magnetic member 325. By spacing apart the second magnetic part 322A and the fifth magnetic part 322B, air gaps can exist between the second magnetic part 322A and the fifth magnetic part 322B, that is, air gaps can exist between the magnetic members of the same magnetic property, so that the magnetic resistance between the second magnetic part 322A and the fifth magnetic part 322B can be increased, and mutual cancellation of the magnetic fields of the second magnetic part 322A and the fifth magnetic part 322B can be prevented.

[0283] In the embodiment, the first connecting part 3288a and the second connecting part 3288b are spaced apart from the fourth magnetic member 324 along the Y-axis direction. By spacing apart the first connecting part 3288a and the second connecting part 3288b from the fourth magnetic member 324, air gaps can exist between the first connecting part 3288a, the second connecting part 3288b and the fourth magnetic member 324, so that mutual cancellation of the magnetic fields of the first connecting part 3288a, the second connecting part 3288b and the fourth magnetic member 324 can be prevented.

[0284] In the embodiment, the first connecting part 3288a and the second connecting part 3288b are spaced apart from the fifth magnetic member 325 along the Y-axis direction. By spacing apart the first connecting part 3288a and the second connecting part 3288b from the fifth magnetic member 325, air gaps can exist between the first connecting part 3288a, the second connecting part 3288b and the fifth magnetic member 325, so that mutual cancellation of the magnetic fields of the first connecting part 3288a, the second connecting part 3288b and the fifth magnetic member 325 can be prevented.

[0285] Please refer to FIG. 25 and FIG. 26, FIG. 25 is a structural schematic diagram of the structure of the loudspeaker 30 in another embodiment of FIG. 2 from another angle, and FIG. 26 is a partial structural schematic diagram of the loudspeaker 30 in another embodiment of FIG. 2 along G-G.

[0286] In the embodiment, the first sub voice coil 3521 and the second sub voice coil 3522 can be arranged along the X-axis direction. One end of the first sub voice coil 3521 can be fixedly connected to the third diaphragm 351, and a part of the other end of the first sub voice coil 3521 can be located in the first magnetic gap 32a. One end of the second sub voice coil 3522 can be fixedly connected to the third diaphragm 351, and a part of the other end of the second sub voice coil 3522 can be located in the second magnetic gap 32b.

[0287] It can be understood that in the embodiment, the first magnetic gap 32a can have the first opening K1 and the second opening K2 arranged oppositely. The first opening K1 of the first magnetic gap 32a is arranged opposite to the first diaphragm 331, and the second opening K2 of the first magnetic gap 32a is arranged opposite to the third diaphragm 351. The other end of the first voice coil 332 can extend into the first magnetic gap 32a through the first opening K1. The other end of the first sub-voice coil 3521 can extend into the first magnetic gap 32a through the second opening K2. The second magnetic gap can have the third opening K3 and the fourth opening K4 arranged oppositely. The third opening K3 of the second magnetic gap 32b is arranged opposite to the second diaphragm 341, and the fourth opening K4 of the second magnetic gap 32b is arranged opposite to the third diaphragm 351. The other end of the second voice coil 342 can extend into the second magnetic gap 32b through the third opening K3, and the other end of the second sub-voice coil 3522 can extend into the second magnetic gap 32b through the fourth opening K4. At this time, the first main body part 3281a of the first magnetic conductive part 328 can be located on the side of the first magnetic part 321 close to the third diaphragm 351, the second main body part 3281b can be located on the side of the second magnetic part 322 away from the third diaphragm 351, and the third main body part 3281c can be located on the side of the third magnetic part 323 close to the third diaphragm 351.

[0288] In the embodiment, the other end of the first sub-voice coil 3521 can be fixedly connected to the second conductive branch 37 and electrically connected to the second conductive branch 37. For example, the other end of the first sub-voice coil 3521 can be fixedly connected to the first sub-branch 371 of the second conductive branch 37 and electrically connected to the first sub-branch 371. The other end of the second sub-voice coil 3522 can be fixedly connected to the second conductive branch 37 and electrically connected to the second conductive branch 37. For example, the other end of the second sub-voice coil 3522 can be fixedly connected to the second sub-branch 372 of the second conductive branch 37 and electrically connected to the second sub-branch 372.

[0289] In the embodiment, the first sub-branch 371 and the second sub-branch 372 of the second conductive branch 37 can be connected to an external power supply, so that the second conductive branch 37 can supply power to the first sub-voice coil 3521 and the second sub-voice coil 3522. When the first sub-voice coil 3521 and the second sub-voice coil 3522 are powered on, the first sub-voice coil 3521 and the second sub-voice coil 3522 generate a force in the magnetic field of the magnetic circuit assembly 32, thereby pushing the third diaphragm 351 to vibrate. The first sub-voice coil 3521 and the second sub-voice coil 3522 can receive an alternating signal and generate an alternating force in the magnetic field. In addition, the loudspeaker 30 can also control the vibration amplitude and direction of the first sub-voice coil 3521, the second sub-voice coil 3522 and the third diaphragm 351 through an algorithm, so as to adjust the amplitude and phase of the sound wave generated by the third diaphragm 351.

[0290] In the present embodiment, the first voice coil 332 and the second voice coil 342 are respectively spaced apart from the projection of the first sub-voice coil 3521 and the second sub-voice coil 3522 in the plane (i.e., the X-Y plane) perpendicular to the Z-axis direction. In this way, when the first voice coil 332, the second voice coil 342, the third voice coil 352 and the fourth voice coil 354 vibrate along the Z-axis direction, the first voice coil 332 and the first sub-voice coil 3521, and the second voice coil 342 and the second sub-voice coil 3522 are less likely to interfere with each other, so that the vibration of the first diaphragm 331, the second diaphragm 341 and the third diaphragm 351 can be avoided from being affected by the interference between the first voice coil 332 and the first sub-voice coil 3521, and the second voice coil 342 and the second sub-voice coil 3522, and the first voice coil 332 and the first sub-voice coil 3521, and the second voice coil 342 and the second sub-voice coil 3522 can also be avoided from being damaged due to the collision.

[0291] In the present embodiment, the first sub-voice coil 3521 and the second sub-voice coil 3522 are configured to drive the third diaphragm 351 together, which can make the arrangement of the first voice coil 332, the second voice coil 342, the first sub-voice coil 3521 and the second sub-voice coil 3522 more flexible, for example, the projection of the first voice coil 332 in the X-Y plane can be located inside the projection of the first sub-voice coil 3521, or outside the projection of the first sub-voice coil 3521; the projection of the second voice coil 342 can be located inside the projection of the second sub-voice coil 3522, or outside the projection of the second sub-voice coil 3522. In addition, the first sub-voice coil 3521 and the second sub-voice coil 3522 driving the third diaphragm 351 together can further improve the vibration performance of the third vibration assembly 35, and effectively suppress the divided vibration.

[0292] Referring to FIG. 27, FIG. 27 is a partially exploded view of the loudspeaker 30 shown in FIG. 2 in some embodiments. It can be understood that FIG. 27 and the relevant drawings below only schematically show some components included in the loudspeaker 30, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 27 and the drawings below.

[0293] In some embodiments, the loudspeaker 30 can include a bracket 31, a magnetic circuit assembly 32, a first vibration assembly 33, a second vibration assembly 34, a third vibration assembly 35, a fourth vibration assembly 35B, a first conductive branch 36, a second conductive branch 37, a first housing 38, and a second housing 39. The bracket can include an upper bracket 311 and a lower bracket 312. The first vibration assembly 33 can include a first diaphragm 331 and a first voice coil 332. The second vibration assembly 34 can include a second diaphragm 341 and a second voice coil 342. The third vibration assembly 35 can include a third diaphragm 351 and a third voice coil 352. The fourth vibration assembly 35B can include a fourth diaphragm 353 and a fourth voice coil 354. It can be understood that the loudspeaker 30 can include more or fewer components. For example, the loudspeaker 30 can have fewer components, and the loudspeaker 30 can not include the first housing 38 and / or the second housing 39. The loudspeaker 30 of the present embodiment can include most of the technical content of the previous embodiments, and the following mainly describes the differences between the two, and most of the scheme content of the two is not repeated.

[0294] In the present embodiment, the structure and arrangement of the magnetic circuit assembly 32 can be similar to that shown in FIG. 22, and can refer to the structure and arrangement of the magnetic circuit assembly 32 shown in FIG. 22, which will not be repeated here.

[0295] In the present embodiment, the lower bracket 312 can be provided with a third through hole 3123 and a fourth through hole 3124 arranged at intervals, and the third through hole 3123 and the fourth through hole 3124 can penetrate the lower bracket 312 along the Z-axis direction. It can be understood that the lower bracket 312 can have at least two hollow regions, and the lower bracket 312 can generally be in the form of a frame. For example, the lower bracket 312 can generally be in the form of a rectangle. In other embodiments, the lower bracket 312 can also be in other shapes, such as a circle, and the present application does not make strict limitations thereto.

[0296] Please refer to FIG. 28, which is a partial structure schematic view of the loudspeaker 30 shown in FIG. 2 along G-G in some embodiments.

[0297] In the embodiment, the periphery of the third diaphragm 351 and the periphery of the fourth diaphragm 353 can be fixedly connected to the side surface of the lower support 312 facing away from the upper support 311, that is, fixedly connected to the second surface 31b of the support 31. For example, the third diaphragm 351 and the fourth diaphragm 353 can be arranged along the X-axis direction. The periphery of the third diaphragm 351 and the periphery of the fourth diaphragm 353 can be fixed to different positions of the second surface 31b of the support 31. The folded ring portion and the vibration portion of the third diaphragm 351 can be exposed relative to the third through hole 3123 of the lower support 312, and the folded ring portion and the vibration portion of the fourth diaphragm 353 can be exposed relative to the fourth through hole 3124 of the lower support 312. At this time, the third diaphragm 351 is at least partially arranged opposite to the first diaphragm 331, and the fourth diaphragm 353 is at least partially arranged opposite to the second diaphragm 341. The structure of the third diaphragm 351 and the fourth diaphragm 353 in the embodiment is similar to the structure of the first diaphragm 331 and the second diaphragm 341 in the above embodiment, and the structure of the third diaphragm 351 and the fourth diaphragm 353 can refer to the related description of the structure of the first diaphragm 331 and the second diaphragm 341 in the above embodiment, which will not be described here.

[0298] For example, one end of the third voice coil 352 can be fixedly connected to the third diaphragm 351, and a part of the other end of the third voice coil 352 can be located in the first magnetic gap 32a. At this time, the other end of the third voice coil 352 can be arranged around the first magnetic member 321. For example, one end of the fourth voice coil 354 can be fixedly connected to the fourth diaphragm 353, and a part of the other end of the fourth voice coil 354 can be located in the second magnetic gap 32b. At this time, the other end of the fourth voice coil 354 can be arranged around the third magnetic member 323.

[0299] In some examples, the projection of the fourth voice coil 354 in the direction from the first diaphragm 331 to the third diaphragm 351 (that is, the Z-axis direction) in the plane perpendicular to the Z-axis direction (that is, the X-Y plane) is a fourth projection. The first projection of the first voice coil 332, the second projection of the second voice coil 342, the third projection of the third voice coil 352, and the fourth projection of the fourth voice coil 354 are arranged at intervals. In this way, when the first voice coil 332, the second voice coil 342, the third voice coil 352, and the fourth voice coil 354 vibrate along the Z-axis direction, interference between the first voice coil 332 and the third voice coil 352 and interference between the second voice coil 342 and the fourth voice coil 354 are less likely to occur, thereby avoiding affecting the vibration of the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351 due to mutual interference between the first voice coil 332 and the third voice coil 352 and mutual interference between the second voice coil 342 and the fourth voice coil 354, and also avoiding damage to the first voice coil 332 and the third voice coil 352 and damage to the second voice coil 342 and the fourth voice coil 354 due to collision.

[0300] In the embodiment, the other end of the third voice coil 352 can be fixedly connected to the second conductive branch 37 and electrically connected to the second conductive branch 37. For example, the other end of the third voice coil 352 can be fixedly connected to the first sub-branch 371 of the second conductive branch 37 and electrically connected to the first sub-branch 371. The other end of the fourth voice coil 354 can be fixedly connected to the second conductive branch 37 and electrically connected to the second conductive branch 37. For example, the other end of the fourth voice coil 354 can be fixedly connected to the second sub-branch 372 of the second conductive branch 37 and electrically connected to the second sub-branch 372.

[0301] Please refer to FIG. 27 and FIG. 28, in the embodiment, the first sub-branch 371 and the second sub-branch 372 of the second conductive branch 37 can be connected to an external power source, so that the second conductive branch 37 can supply power to the third voice coil 352 and the fourth voice coil 354. When the third voice coil 352 is powered, the third voice coil 352 generates a force in the magnetic field of the magnetic circuit assembly 32, thereby pushing the third diaphragm 351 to vibrate. When the fourth voice coil 354 is powered, the fourth voice coil 354 generates a force in the magnetic field of the magnetic circuit assembly 32, thereby pushing the fourth diaphragm 353 to vibrate. The third voice coil 352 and the fourth voice coil 354 can receive alternating signals and generate alternating forces in the magnetic field. In addition, the loudspeaker 30 can control the vibration amplitude and direction of the third voice coil 352 and the third diaphragm 351, the fourth voice coil 354 and the fourth diaphragm 353 through an algorithm, so as to adjust the amplitude and phase of the sound waves generated by the third diaphragm 351 and the fourth diaphragm 353.

[0302] Please refer to FIG. 27 and FIG. 28, in the embodiment, the second housing 39 can be provided with a third sound hole 391 and a fourth sound hole 392 arranged at intervals, and the third sound hole 391 and the fourth sound hole 392 can penetrate the second housing 39. For example, the second housing 39 can also be provided with a separation portion 393, and the separation portion 393 can protrude from the second housing 39 towards the third diaphragm 351. The separation portion 393 can be located between the third sound hole 391 and the fourth sound hole 392, and connected to the fixed portion of the third diaphragm 351 and / or the fixed portion of the fourth diaphragm 353. For example, the third sound hole 391 is also arranged at intervals with the first sound hole 381 and the second sound hole 382 (please refer to FIG. 18B), and the fourth sound hole 392 is also arranged at intervals with the first sound hole 381 and the second sound hole 382 (please refer to FIG. 18B).

[0303] Exemplarily, the second shell 39 and the third diaphragm 351 can jointly enclose a third cavity 3510, and a third sound hole 391 of the second shell 39 is arranged opposite to the third diaphragm 351. The third cavity 3510 can be communicated with the outside of the loudspeaker 30 through the third sound hole 391, so that the sound wave generated by the vibration of the third diaphragm 351 can be propagated to the outside of the loudspeaker 30 through the third cavity 3510 and the third sound hole 391.

[0304] Exemplarily, the second shell 39 and the fourth diaphragm 353 can jointly enclose a fourth cavity 3530, and a fourth sound hole 392 of the second shell 39 is arranged opposite to the fourth diaphragm 353. The fourth cavity 3530 can be communicated with the outside of the loudspeaker 30 through the fourth sound hole 392, so that the sound wave generated by the vibration of the fourth diaphragm 353 can be propagated to the outside of the loudspeaker 30 through the fourth cavity 3530 and the fourth sound hole 392.

[0305] Exemplarily, the isolation part 393 can be located between the third cavity 3510 and the fourth cavity 3530, so that the third cavity 3510 and the fourth cavity 3530 are arranged in a spaced manner. That is, the airflow between the third cavity 3510 and the fourth cavity 3530 is not communicated. In this way, the sound wave generated by the third diaphragm 351 and the sound wave generated by the fourth diaphragm 353 are not easily interfered with each other.

[0306] In the embodiment, the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 can vibrate in the same direction. At this time, the phase of the sound wave generated by the third diaphragm 351 is opposite to the phase of the sound wave generated by the first diaphragm 331 and the second diaphragm 341 (i.e. the phase difference is 180°), and at least partial cancellation can occur between the sound wave generated by the third diaphragm 351 and the sound wave generated by the first diaphragm 331 and the second diaphragm 341; the phase of the sound wave generated by the fourth diaphragm 353 is opposite to the phase of the sound wave generated by the first diaphragm 331 and the second diaphragm 341, and at least partial cancellation can also occur between the sound wave generated by the fourth diaphragm 353 and the sound wave generated by the first diaphragm 331 and the second diaphragm 341, and the sound cancellation area is large, so that the loudness of the loudspeaker 30 can be further reduced, and the isolation degree of the loudspeaker 30 can be further improved.

[0307] The third diaphragm 351 and the first diaphragm 331 and the second diaphragm 341 can vibrate in opposite directions, and the fourth diaphragm 353 and the first diaphragm 331 and the second diaphragm 341 can vibrate in opposite directions. At this time, the phases of the sound waves generated by the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 are the same, and superposition can occur between the sound waves generated by the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353, so that the loudness of the loudspeaker 30 can be increased.

[0308] In the embodiments of the present application, when the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 vibrate in the same direction and the amplitudes of the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 are the same, the third diaphragm 351 can form a dipole with the first diaphragm 331 and the second diaphragm 341 respectively, and the fourth diaphragm 353 can form a dipole with the first diaphragm 331 and the second diaphragm 341 respectively. At this time, the sound waves generated by the third diaphragm 351 and the sound waves generated by the first diaphragm 331 can be completely canceled in some areas to form a dark area, the sound waves generated by the third diaphragm 351 and the sound waves generated by the second diaphragm 341 can be completely canceled in some areas to form a dark area, the sound waves generated by the fourth diaphragm 353 and the sound waves generated by the first diaphragm 331 can be completely canceled in some areas to form a dark area, and the sound waves generated by the fourth diaphragm 353 and the sound waves generated by the second diaphragm 341 can be completely canceled in some areas to form a dark area, and the four dark areas can at least partially overlap, that is, a multipole can be formed between the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353, so as to further widen the width of the dark area of the loudspeaker 30, and thus the call privacy effect of the electronic device 100 can be further improved.

[0309] In addition, in the embodiments of the present application, the loudspeaker 30 can also control the amplitudes and vibration directions of the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 through an algorithm, so that the sound waves generated by the third diaphragm 351 and the first diaphragm 331 and the second diaphragm 341 can be completely canceled in some areas, and the sound waves generated by the fourth diaphragm 353 and the first diaphragm 331 and the second diaphragm 341 can be completely canceled in some areas, so as to improve the isolation of the loudspeaker 30, and thus the call privacy effect of the electronic device 100 can be improved.

[0310] It can be understood that in the above-mentioned embodiments, the fourth diaphragm 353 is at least partially arranged opposite to the second diaphragm 341, and the other end of the fourth voice coil 354 can be located in the second magnetic gap 32b of the magnetic circuit assembly 32, that is, the fourth voice coil 354 can share the same magnetic circuit assembly 32 with the first voice coil 332, the second voice coil 342 and the third voice coil 352. In this way, it is beneficial to simplify the structure of the loudspeaker 30, and at the same time, it is beneficial to the miniaturization of the loudspeaker 30. In some other embodiments, the loudspeaker 30 can include a plurality of magnetic circuit assemblies, for example, the loudspeaker 30 can include a first magnetic circuit assembly and a second magnetic circuit assembly, at this time, the other ends of the first voice coil 332, the second voice coil 342 and the third voice coil 352 can be located in the magnetic gap of the first magnetic circuit assembly, and the other end of the fourth voice coil 354 can be located in the magnetic gap of the second magnetic circuit assembly.

[0311] Referring to FIG. 29, FIG. 29 is a schematic diagram of a partial cross-sectional structure of the electronic device 100 along K-K in some embodiments. For example, the electronic device 100 shown in FIG. 29 can include the speaker 30 shown in FIG. 2 or FIG. 21.

[0312] In some embodiments, the housing 20 can be provided with a first through hole 2011, a second through hole 2012, and a third through hole 2013 arranged at intervals. It can be understood that the first through hole 2011, the second through hole 2012, and the third through hole 2013 are not in communication with each other. For example, the first through hole 2011, the second through hole 2012, and the third through hole 2013 can all be connected to the speaker 30 and in communication with the outside of the housing 20. Among them, the first through hole 2011 can be in communication with the first sound outlet 381 of the speaker 30, so that the sound waves generated by the first diaphragm 331 of the speaker 30 can be propagated from the first through hole 2011 to the outside of the electronic device 100. The second through hole 2012 can be in communication with the second sound outlet 382 of the speaker 30, so that the sound waves generated by the second diaphragm 341 of the speaker 30 can be propagated from the second through hole 2012 to the outside of the electronic device 100. The third through hole 2013 can be in communication with the third sound outlet 391 of the speaker 30, so that the sound waves generated by the third diaphragm 351 of the speaker 30 can be propagated from the third through hole 2013 to the outside of the electronic device 100, that is, the third through hole 2013 can be in communication with the space on the side of the third diaphragm 351 away from the first diaphragm 331 and the second diaphragm 341.

[0313] In the embodiments of the present application, the first diaphragm 331, the second diaphragm 341, and the third diaphragm 351 can vibrate in the same direction. At this time, the sound waves generated by the first diaphragm 331 and the sound waves generated by the third diaphragm 351 can at least partially cancel each other out on the outside of the electronic device 100, and the sound waves generated by the second diaphragm 341 and the sound waves generated by the third diaphragm 351 can also at least partially cancel each other out on the outside of the electronic device 100. The sound cancellation area is large, so that the sound loudness of the speaker 30 can be effectively reduced, which is conducive to improving the isolation of the speaker 30. In this way, the risk of far-field sound leakage of the electronic device 100 can be reduced, which is conducive to improving the call privacy effect of the electronic device 100.

[0314] The first diaphragm 331 and the second diaphragm 341 can respectively vibrate in the opposite direction of the third diaphragm 351. At this time, the sound waves generated by the first diaphragm 331 and the second diaphragm 341 and the sound waves generated by the third diaphragm 351 can be superimposed on the outside of the electronic device 100, so as to increase the sound loudness of the speaker 30. In this way, it is conducive to improving the external playing effect of the electronic device 100.

[0315] In the embodiments of the present application, when the first diaphragm 331, the second diaphragm 341 and the third diaphragm 351 vibrate in the same direction and the amplitudes of the first diaphragm 331, the second diaphragm 341 and the third diaphragm 351 are the same, the first diaphragm 331 can form a dipole with the third diaphragm 351, and the second diaphragm 341 can form a dipole with the third diaphragm 351. At this time, the sound waves generated by the first diaphragm 331 and the sound waves generated by the third diaphragm 351 can be completely cancelled in some areas outside the electronic device 100 to form a dark area, the sound waves generated by the second diaphragm 341 and the sound waves generated by the third diaphragm 351 can be completely cancelled in some areas outside the electronic device 100 to form a dark area, and the two dark areas can at least partially overlap, the sound cancellation area is larger, thereby further reducing the risk of far-field leakage of the electronic device 100, and the call privacy effect of the electronic device 100 is further improved.

[0316] Referring to FIG. 29, the housing 20 can include a top surface 21, a bottom surface 22 and a side surface 23. The top surface 21 is spaced apart from the bottom surface 22, and the side surface 23 is connected between the top surface 21 and the bottom surface 22. The bottom surface 22 of the housing 20 can be arranged to face away from the screen 10 (see FIG. 1) of the electronic device 100. The opening of the first through hole 2011 away from one end of the loudspeaker 30 can be located on the side surface 23 of the housing 20. The opening of the second through hole 2012 away from one end of the loudspeaker 30 can be located on the bottom surface 22 of the housing 20. The opening of the third through hole 2013 away from one end of the loudspeaker 30 can be located on the top surface 21 of the housing 20, that is, the opening of the third through hole 2013 is oriented in the same direction as the screen 10.

[0317] In other embodiments, the opening of the first through hole 2011 away from one end of the loudspeaker 30 can also be located on the top surface 21 of the housing 20, or the opening of the second through hole 2012 away from one end of the loudspeaker 30 can also be located on the top surface 21 of the housing 20. It can be understood that the positions of the openings of the first through hole 2011, the second through hole 2012 and the third through hole 2013 away from one end of the loudspeaker 30 can be adjusted according to actual needs. The positions of the openings of the first through hole 2011, the second through hole 2012 and the third through hole 2013 away from one end of the loudspeaker 30 can have various setting modes, and the present application does not strictly limit the positions of the openings of the first through hole 2011, the second through hole 2012 and the third through hole 2013 away from one end of the loudspeaker 30.

[0318] In the embodiments of the present application, the number of the first through hole 2011, the second through hole 2012 and the third through hole 2013 can be multiple. The multiple first through holes 2011 can be connected or not connected, the multiple second through holes 2012 can be connected or not connected, and the multiple third through holes 2013 can be connected or not connected, and the present application does not strictly limit this.

[0319] In some embodiments, the loudspeaker 30 can not include the first housing 38. At this time, a part of the outer shell 20 can be located on a side of the first diaphragm 331 away from the third diaphragm 351, and together with the first diaphragm 331 enclose the first sound outlet channel 203; a part of the outer shell 20 can be located on a side of the second diaphragm 341 away from the third diaphragm 351, and together with the second diaphragm 341 enclose the second sound outlet channel 204. The first sound outlet channel 203 and the second sound outlet channel 204 are arranged in a spaced manner, that is, the first sound outlet channel 203 and the second sound outlet channel 204 are not in communication. The first sound outlet channel 203 can be in communication with the first through-hole 2011, and the sound wave generated by the first diaphragm 331 can be propagated to the outside of the electronic device 100 through the first sound outlet channel 203 and the first through-hole 2011. The second sound outlet channel 204 can be in communication with the second through-hole 2012, and the sound wave generated by the second diaphragm 341 can be propagated to the outside of the electronic device 100 through the second sound outlet channel 204 and the second through-hole 2012.

[0320] In some embodiments, the loudspeaker 30 can not include the second housing 39. At this time, a part of the outer shell 20 of the electronic device 100 can be located on a side of the third diaphragm 351 away from the first diaphragm 331 and the second diaphragm 341, and together with the third diaphragm 351 enclose the third sound outlet channel 205. The third sound outlet channel 205 can be in communication with the third through-hole 2013, and the sound wave generated by the third diaphragm 351 can be propagated to the outside of the electronic device 100 through the third sound outlet channel 205 and the third through-hole 2013.

[0321] Please refer to FIG. 30, which is a partial cross-sectional structure schematic diagram of the electronic device 100 along K-K in some embodiments shown in FIG. 1. For example, the electronic device 100 shown in FIG. 30 can include the loudspeaker 30 shown in FIG. 27.

[0322] In some embodiments, the outer shell 20 can be provided with the first through-hole 2011, the second through-hole 2012, the third through-hole 2013, and the fourth through-hole 2014 arranged in a spaced manner. It can be understood that the first through-hole 2011, the second through-hole 2012, the third through-hole 2013, and the fourth through-hole 2014 are not in communication.

[0323] Exemplarily, the first through hole 2011, the second through hole 2012, the third through hole 2013 and the fourth through hole 2014 can all be connected with the speaker 30 and communicate with the outside of the shell 20. Among them, the first through hole 2011 can communicate the first sound hole 381 of the speaker 30, so that the sound wave generated by the first diaphragm 331 of the speaker 30 can be propagated from the first through hole 2011 to the outside of the electronic device 100. The second through hole 2012 can communicate the second sound hole 382 of the speaker 30, so that the sound wave generated by the second diaphragm 341 of the speaker 30 can be propagated from the second through hole 2012 to the outside of the electronic device 100. The third through hole 2013 can communicate the third sound hole 391 of the speaker 30, so that the sound wave generated by the third diaphragm 351 of the speaker 30 can be propagated from the third through hole 2013 to the outside of the electronic device 100. The fourth through hole 2014 can communicate the fourth sound hole 392 of the speaker 30, so that the sound wave generated by the fourth diaphragm 353 of the speaker 30 can be propagated from the fourth through hole 2014 to the outside of the electronic device 100.

[0324] In the embodiment of the present application, the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 can vibrate in the same direction. At this time, the sound waves generated by the first diaphragm 331 and the second diaphragm 341 can at least partially cancel each other out outside the electronic device 100, and the sound waves generated by the first diaphragm 331 and the fourth diaphragm 353 can also at least partially cancel each other out outside the electronic device 100, so that the sound cancellation area is larger, thereby effectively reducing the sound loudness of the speaker 30, and facilitating to improve the isolation of the speaker 30. In this way, the risk of far-field leakage of the electronic device 100 can be reduced, and the call privacy effect of the electronic device 100 can be improved.

[0325] The first diaphragm 331 and the second diaphragm 341 can respectively vibrate in the opposite direction of the third diaphragm 351, and the first diaphragm 331 and the second diaphragm 341 can also respectively vibrate in the opposite direction of the fourth diaphragm 353. At this time, the sound waves generated by the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 can be superimposed outside the electronic device 100, so as to increase the sound loudness of the speaker 30. In this way, the external playing effect of the electronic device 100 can be improved.

[0326] In the embodiments of the present application, when the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 vibrate in the same direction and the amplitudes of the first diaphragm 331, the second diaphragm 341, the third diaphragm 351 and the fourth diaphragm 353 are the same, the first diaphragm 331 and the second diaphragm 341 can form dipoles with the third diaphragm 351 respectively, and the first diaphragm 331 and the second diaphragm 341 can form dipoles with the fourth diaphragm 353 respectively. At this time, the sound waves generated by the third diaphragm 351 and the sound waves generated by the first diaphragm 331 can be completely cancelled in some areas outside the electronic device 100 to form a dark area, the sound waves generated by the third diaphragm 351 and the sound waves generated by the second diaphragm 341 can be completely cancelled in some areas outside the electronic device 100 to form a dark area, the sound waves generated by the fourth diaphragm 353 and the sound waves generated by the first diaphragm 331 can be completely cancelled in some areas outside the electronic device 100 to form a dark area, and the sound waves generated by the fourth diaphragm 353 and the sound waves generated by the second diaphragm 341 can be completely cancelled in some areas outside the electronic device 100 to form a dark area, and the four dark areas can at least partially overlap, that is, the third diaphragm 351 and the fourth diaphragm 353 and the first diaphragm 331 and the second diaphragm 341 can form a multipole therebetween, so as to further widen the width of the dark area of the loudspeaker 30, and thus the call privacy effect of the electronic device 100 can be further improved.

[0327] Referring to FIG. 30, the housing 20 can include a top surface 21, a bottom surface 22 and a side surface 23. The top surface 21 is spaced apart from the bottom surface 22, and the side surface 23 is connected between the top surface 21 and the bottom surface 22. The bottom surface 22 of the housing 20 can be arranged to face away from the screen 10 (see FIG. 1) of the electronic device 100. The opening of the first through hole 2011 away from one end of the loudspeaker 30 can be located on the side surface 23 of the housing 20. The opening of the second through hole 2012 away from one end of the loudspeaker 30 can be located on the bottom surface 22 of the housing 20. The opening of the third through hole 2013 away from one end of the loudspeaker 30 can be located on the side surface 23 of the housing 20. The opening of the fourth through hole 2014 away from one end of the loudspeaker 30 can be located on the top surface 21 of the housing 20, that is, the opening of the fourth through hole 2014 is oriented in the same direction as the screen 10.

[0328] In some other embodiments, the opening of the first through hole 2011 away from one end of the speaker 30 can also be located on the top surface 21 of the shell 20, or the opening of the second through hole 2012 away from one end of the speaker 30 can also be located on the top surface 21 of the shell 20, or the opening of the third through hole 2013 away from one end of the speaker 30 can also be located on the top surface 21 of the shell 20, or the opening of the fourth through hole 2014 away from one end of the speaker 30 can also be located on the side surface 23 of the shell 20. It can be understood that the opening positions of the first through hole 2011, the second through hole 2012, the third through hole 2013 and the fourth through hole 2014 away from one end of the speaker 30 can be adjusted according to actual needs. The opening positions of the first through hole 2011, the second through hole 2012, the third through hole 2013 and the fourth through hole 2014 away from one end of the speaker 30 can have various setting modes, and the application does not strictly limit the opening positions of the first through hole 2011, the second through hole 2012, the third through hole 2013 and the fourth through hole 2014 away from one end of the speaker 30.

[0329] In the embodiments of the application, the number of the first through hole 2011, the second through hole 2012, the third through hole 2013 and the fourth through hole 2014 can be multiple. The multiple first through holes 2011 can be connected or not connected; the multiple second through holes 2012 can be connected or not connected; the multiple third through holes 2013 can be connected or not connected; the multiple fourth through holes 2014 can be connected or not connected; the application does not strictly limit this.

[0330] In some embodiments, the speaker 30 can not include the first shell 38. At this time, a part of the shell 20 can be located on the side of the first diaphragm 331 away from the third diaphragm 351 and enclose the first sound outlet channel 203 together with the first diaphragm 331; a part of the shell 20 can be located on the side of the second diaphragm 341 away from the fourth diaphragm 353 and enclose the second sound outlet channel 204 together with the second diaphragm 341. The first sound outlet channel 203 and the second sound outlet channel 204 are arranged in a spaced manner, that is, the first sound outlet channel 203 and the second sound outlet channel 204 are not connected. The first sound outlet channel 203 can be connected with the first through hole 2011, and the sound wave generated by the first diaphragm 331 can be propagated to the outside of the electronic device 100 through the first sound outlet channel 203 and the first through hole 201. The second sound outlet channel 204 can be connected with the second through hole 2012, and the sound wave generated by the second diaphragm 341 can be propagated to the outside of the electronic device 100 through the second sound outlet channel 204 and the second through hole 2012.

[0331] In some embodiments, the loudspeaker 30 can not include the second housing 39. At this time, a part of the outer shell 20 can be located on the side of the third diaphragm 351 away from the first diaphragm 331, and cooperates with the third diaphragm 351 to enclose the third sound outlet channel 205; a part of the outer shell 20 can be located on the side of the fourth diaphragm 353 away from the second diaphragm 341, and cooperates with the fourth diaphragm 353 to enclose the fourth sound outlet channel 206. The third sound outlet channel 205 and the fourth sound outlet channel 206 are arranged in a spaced manner, that is, the third sound outlet channel 205 and the fourth sound outlet channel 206 are not communicated. Among them, the third sound outlet channel 205 can be communicated with the third through hole 2013, and the sound wave generated by the third diaphragm 351 can be propagated to the outside of the electronic device 100 through the third sound outlet channel 205 and the third through hole 2013. The fourth sound outlet channel 206 can be communicated with the fourth through hole 2014, and the sound wave generated by the fourth diaphragm 353 can be propagated to the outside of the electronic device 100 through the fourth sound outlet channel 206 and the fourth through hole 2014.

[0332] It should be noted that all the above-mentioned drawings are exemplary drawings of the present application, and do not represent the actual size of the product. The size ratio relationship between the main parts of the drawings is not limited to the actual product of the present application.

[0333] The above is only part of the embodiments of the present application, the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within 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 loudspeaker (30) characterised in that, The loudspeaker (30) comprises a support (31), a first diaphragm (331), a second diaphragm (341) and a third diaphragm (351); the support (31) comprises a first surface (31a) and a second surface (31b) arranged oppositely, the periphery of the first diaphragm (331) and the periphery of the second diaphragm (341) are fixed to different positions of the first surface (31a), and the periphery of the third diaphragm (351) is fixed to the second surface (31b); The loudspeaker (30) further comprises a first shell (38) provided with a first sound hole (381) and a second sound hole (382) arranged at intervals, a part of the first shell (38) is located on the side of the first diaphragm (331) away from the third diaphragm (351), and the first diaphragm (331) and the first shell (38) jointly enclose a first cavity (3310), and the first cavity (3310) is communicated with the first sound hole (381); A part of the first shell (38) is located on the side of the second diaphragm (341) away from the third diaphragm (351), and the second diaphragm (341) and the first shell (38) jointly enclose a second cavity (3410), and the second cavity (3410) is communicated with the second sound hole (382), and the second cavity (3410) and the first cavity (3310) are arranged at intervals; The first diaphragm (331), the second diaphragm (341) and the third diaphragm (351) vibrate in the same direction.

2. The loudspeaker (30) as defined in claim 1, characterized in that The amplitude of the first diaphragm (331) is the same as the amplitude of the third diaphragm (351); And / or, the amplitude of the second diaphragm (341) is the same as the amplitude of the third diaphragm (351).

3. The loudspeaker (30) according to claim 1 or 2, characterized in that The loudspeaker (30) further comprises a magnetic circuit assembly (32) having a first magnetic gap (32a) and a second magnetic gap (32b) arranged at intervals, the first magnetic gap (32a) has a first opening (K1) and a second opening (K2) arranged oppositely, and the second magnetic gap (32b) has a third opening (K3) and a fourth opening (K4) arranged oppositely; The magnetic circuit assembly (32) is fixedly connected with the support (31), the first opening (K1) of the first magnetic gap (32a) is arranged opposite to the first diaphragm (331), and the third opening (K3) of the second magnetic gap (32b) is arranged opposite to the second diaphragm (341); The loudspeaker (30) further comprises a first voice coil (332), a second voice coil (342) and a third voice coil (352), one end of the first voice coil (332) is fixedly connected with the first diaphragm (331), the other end of the first voice coil (332) extends into the first magnetic gap (32a) through the first opening (K1), one end of the second voice coil (342) is fixedly connected with the second diaphragm (341), and the other end of the second voice coil (342) extends into the second magnetic gap (32b) through the third opening (K3); The second opening (K2) and the fourth opening (K4) are arranged opposite to the third diaphragm (351), one part of the third voice coil (352) is fixedly connected to the third diaphragm (351), one part of the third voice coil (352) extends into the first magnetic gap (32a) through the second opening (K2), and one part of the third voice coil (352) extends into the second magnetic gap (32b) through the fourth opening (K4), or the second opening (K2) is arranged opposite to the third diaphragm (351), one end of the third voice coil (352) is fixedly connected to the third diaphragm (351), and the other end of the third voice coil (352) extends into the first magnetic gap (32a) through the second opening (K2).

4. The loudspeaker (30) as defined in claim 3, characterized in that The magnetic circuit assembly (32) comprises an inner magnetic part (32A) and an outer magnetic part (32B); The inner magnetic part (32A) comprises a first magnetic member (321), a second magnetic member (322), and a third magnetic member (323), the first magnetic member (321), the second magnetic member (322), and the third magnetic member (323) are arranged in sequence and are spaced apart, the first magnetic member (321) and the second magnetic member (322) form part of the first magnetic gap (32a), and the second magnetic member (322) and the third magnetic member (323) form part of the second magnetic gap (32b); The outer magnetic part (32B) surrounds the first magnetic member (321), the second magnetic member (322), and the third magnetic member (323), part of the outer magnetic part (32B) and the first magnetic member (321) form part of the first magnetic gap (32a), and part of the outer magnetic part (32B) and the third magnetic member (323) form part of the second magnetic gap (32b).

5. The loudspeaker (30) as defined in claim 4, characterized in that The outer magnetic part (32B) comprises a fourth magnetic member (324), a fifth magnetic member (325), a sixth magnetic member (326), and a seventh magnetic member (327) arranged in sequence and spaced apart, the fourth magnetic member (324), the fifth magnetic member (325), the sixth magnetic member (326), and the seventh magnetic member (327) surround the first magnetic member (321), the second magnetic member (322), and the third magnetic member (323); The fourth magnetic member (324) and the fifth magnetic member (325) are respectively located on the opposite sides of the first magnetic member (321), the second magnetic member (322) and the third magnetic member (323), a part of the fourth magnetic member (324) is arranged opposite to the first magnetic member (321) and forms a part of the first magnetic gap (32a) with the first magnetic member (321), a part of the fourth magnetic member (324) is arranged opposite to the third magnetic member (323) and forms a part of the second magnetic gap (32b) with the third magnetic member (323), a part of the fifth magnetic member (325) is arranged opposite to the first magnetic member (321) and forms a part of the first magnetic gap (32a) with the first magnetic member (321), and a part of the fifth magnetic member (325) is arranged opposite to the third magnetic member (323) and forms a part of the second magnetic gap (32b) with the third magnetic member (323); The sixth magnetic member (326) and the seventh magnetic member (327) are respectively located on the opposite sides of the first magnetic member (321), the second magnetic member (322) and the third magnetic member (323), the sixth magnetic member (326) is arranged opposite to the first magnetic member (321) and forms a part of the first magnetic gap (32a) with the first magnetic member (321), and the seventh magnetic member (327) is arranged opposite to the third magnetic member (323) and forms a part of the second magnetic gap (32b) with the third magnetic member (323).

6. The loudspeaker (30) as defined in claim 5, characterized in that The magnetic poles of the opposite positions of the fourth magnetic member (324) and the second magnetic member (322) are the same, and the fourth magnetic member (324) is arranged spaced apart from the second magnetic member (322). And / or, The magnetic poles of the opposite positions of the fifth magnetic member (325) and the second magnetic member (322) are the same, and the fifth magnetic member (325) is arranged spaced apart from the second magnetic member (322).

7. The loudspeaker (30) according to claim 5 or 6, characterized in that The magnetic circuit assembly (32) further comprises a first magnetic conducting member (328), the first magnetic conducting member (328) comprises a main body part (3281) and a first connecting part (3282), the first connecting part (3282) connects the main body part (3281) and is arranged at an angle with the main body part (3281); The main body part (3281) is fixedly connected with the first magnetic member (321), the second magnetic member (322) and the third magnetic member (323) and is located on the side of the first magnetic member (321), the second magnetic member (322) and the third magnetic member (323) close to the third diaphragm (351), and the first connecting part (3282) is located between the first magnetic member (321), the second magnetic member (322), the third magnetic member (323) and the fourth magnetic member (324).

8. The loudspeaker (30) as defined in claim 7, characterized in that The main body part (3281) and / or the first connecting part (3282) is provided with a first through slot (3286) penetrating through the main body part (3281) and / or the first connecting part (3282), and the first through slot (3286) is located between the second magnetic member (322) and the first connecting part (3282).

9. The loudspeaker (30) according to claim 7 or 8, characterized in that The first magnetic conductive member (328) further comprises a second connecting part (3283) connecting the main body part (3281) and arranged at an angle with the main body part (3281), and the second connecting part (3283) is oppositely and spacedly arranged with the first connecting part (3282). The first connecting part (3282) is located between the first magnetic member (321), the second magnetic member (322), the third magnetic member (323) and the fifth magnetic member (325), and the main body part (3281) and / or the second connecting part (3283) is further provided with a second through slot (3287) penetrating through the main body part (3281), and the second through slot (3287) is located between the second magnetic member (322) and the second connecting part (3283).

10. The loudspeaker (30) according to claim 5 or 6, characterized in that The magnetic circuit assembly (32) further comprises a first magnetic conductive member (328), and the first magnetic conductive member (328) comprises a first main body part (3281a), a second main body part (3281b), a third main body part (3281c), a second connecting part (3288b) and a third connecting part (3288c). The first main body part (3281a), the second main body part (3281b) and the third main body part (3281c) are sequentially arranged, the first main body part (3281a) is fixedly connected with the first magnetic member (321) and located on a side of the first magnetic member (321) close to the third diaphragm (351), the second main body part (3281b) is fixedly connected with the second magnetic member (322) and located on a side of the second magnetic member (322) away from the third diaphragm (351), and the third main body part (3281c) is fixedly connected with the third magnetic member (323) and located on a side of the third magnetic member (323) close to the third diaphragm (351). The second connecting part (3288b) is connected between the first main body part (3281a) and the second main body part (3281b), and at least part of the second connecting part (3288b) is located between the first magnetic member (321) and the second magnetic member (322), and the third connecting part (3288c) is connected between the second main body part (3281b) and the third main body part (3281c), and at least part of the third connecting part (3288c) is located between the second magnetic member (322) and the third magnetic member (323).

11. The loudspeaker (30) of claim 10, characterized in that The second main body part (3281b), the second connecting part (3288b) and the third main body part (3281c) are spaced apart from the fourth magnetic member (324); And / or, The second main body part (3281b), the second connecting part (3288b) and the third main body part (3281c) are spaced apart from the fifth magnetic member (325).

12. The loudspeaker (30) according to any of claims 3 to 11, characterized in that The third voice coil (352) is one in number, one end of the third voice coil (352) is fixedly connected to the third diaphragm (351), and the other end of the third voice coil (352) is partially inserted into the first magnetic gap (32a) through the second opening (K2) and partially inserted into the second magnetic gap (32b) through the fourth opening (K4).

13. The loudspeaker (30) according to any one of claims 3 to 11, characterized in that The third voice coil (352) comprises a first sub-voice coil (3521) and a second sub-voice coil (3522) which are spaced apart, one end of the first sub-voice coil (3521) is fixedly connected to the third diaphragm (351), and the other end of the first sub-voice coil (3521) is partially inserted into the first magnetic gap (32a) through the second opening (K2), one end of the second sub-voice coil (3522) is fixedly connected to the third diaphragm (351), and the other end of the second sub-voice coil (3522) is partially inserted into the second magnetic gap (32b) through the fourth opening (K4).

14. The loudspeaker (30) according to any of claims 3 to 13, characterized in that The projection of the first voice coil (332) in a first plane in a first direction is a first projection, the projection of the second voice coil (342) in the first plane in the first direction is a second projection, the projection of the third voice coil (352) in the first plane in the first direction is a third projection, and the first projection and the second projection are spaced apart from the third projection; The first direction is parallel to the direction of the first diaphragm (331) to the third diaphragm (351), and the first plane is perpendicular to the first direction.

15. The loudspeaker (30) according to any one of claims 1 to 14, characterized in that The loudspeaker (30) further comprises a second shell (39), at least part of the second shell (39) is located on the side of the third diaphragm (351) away from the first diaphragm (331) and the second diaphragm (341), and at least part of the second shell (39) cooperates with the third diaphragm (351) to form a third cavity (3510); The second shell (39) is provided with a third sound hole (391), the third sound hole (391) communicates with the third cavity (3510), and the third sound hole (391) is spaced apart from the first sound hole (381) and the second sound hole (382).

16. The loudspeaker (30) according to any one of claims 1 to 15, characterized in that The loudspeaker (30) further comprises a fourth diaphragm (353), and the periphery of the fourth diaphragm (353) is connected to the second face (31b) of the support (31). The loudspeaker (30) further comprises a second shell (39), a part of the second shell (39) is located on a side of the third diaphragm (351) away from the first diaphragm (331), a part of the second shell (39) cooperates with the third diaphragm (351) to enclose a third cavity (3510), a part of the second shell (39) is located on a side of the fourth diaphragm (353) away from the second diaphragm (341), and a part of the second shell (39) cooperates with the fourth diaphragm (353) to enclose a fourth cavity (3530), the fourth cavity (3530) is spaced apart from the third cavity (3510); The second shell (39) is provided with a third sound hole (391) and a fourth sound hole (392) which are spaced apart, the third sound hole (391) communicates with the third cavity (3510), the fourth sound hole (392) communicates with the fourth cavity (3530), the third sound hole (391) is spaced apart from the first sound hole (381) and the second sound hole (382), and the fourth sound hole (392) is spaced apart from the first sound hole (381) and the second sound hole (382); The fourth diaphragm (353) vibrates in the same direction as the first diaphragm (331).

17. The loudspeaker (30) as defined in claim 16, characterized by The amplitude of the fourth diaphragm (353) is the same as the amplitude of the first diaphragm (331). And / or, the amplitude of the fourth diaphragm (353) is the same as the amplitude of the second diaphragm (341).

18. The loudspeaker (30) according to any one of claims 3 to 11, characterized in that The loudspeaker (30) further comprises a fourth diaphragm (353), the periphery of the fourth diaphragm (353) is connected to the second face (31b) of the support (31); The loudspeaker (30) further comprises a second shell (39), a part of the second shell (39) is located on a side of the third diaphragm (351) away from the first diaphragm (331), a part of the second shell (39) cooperates with the third diaphragm (351) to enclose a third cavity (3510), a part of the second shell (39) is located on a side of the fourth diaphragm (353) away from the second diaphragm (341), and a part of the second shell (39) cooperates with the fourth diaphragm (353) to enclose a fourth cavity (3530), the fourth cavity (3530) is spaced apart from the third cavity (3510); The second shell (39) is provided with a third sound hole (391) and a fourth sound hole (392) which are spaced apart, the third sound hole (391) communicates with the third cavity (3510), the fourth sound hole (392) communicates with the fourth cavity (3530), the third sound hole (391) is spaced apart from the first sound hole (381) and the second sound hole (382), and the fourth sound hole (392) is spaced apart from the first sound hole (381) and the second sound hole (382); The fourth diaphragm (353) vibrates in the same direction as the first diaphragm (331).

19. The loudspeaker (30) of claim 18, characterized in that An amplitude of the fourth diaphragm (353) is same as an amplitude of the first diaphragm (331). An amplitude of the fourth diaphragm (353) is same as an amplitude of the second diaphragm (341).

20. The loudspeaker (30) according to claim 18 or 19, characterized in that The loudspeaker (30) further comprises a fourth voice coil (354), the fourth voice coil (354) is arranged in space with the third voice coil (352), the fourth opening (K4) is arranged opposite to the fourth diaphragm (353), one end of the fourth voice coil (354) is fixedly connected to the fourth diaphragm (353), and the other end of the fourth voice coil (354) extends into the second magnetic gap (32b) through the fourth opening (K4).

21. The loudspeaker (30) of claim 20, wherein, A projection of the first voice coil (332) in a first plane along a first direction is a first projection, a projection of the second voice coil (342) in the first plane along the first direction is a second projection, a projection of the third voice coil (352) in the first plane along the first direction is a third projection, and a projection of the fourth voice coil (354) in the first plane along the first direction is a fourth projection, the first projection, the second projection, the third projection, and the fourth projection are arranged in space. The first direction is parallel to a direction from the first diaphragm (331) to the third diaphragm (351), and the first plane is perpendicular to the first direction.

22. The loudspeaker (30) according to any one of claims 1 to 21, characterized in that Arrangement directions of the first diaphragm (331) and the third diaphragm (351) are parallel to a first direction, and arrangement directions of the first diaphragm (331) and the second diaphragm (341) are parallel to a second direction, the second direction intersects the first direction.

23. The loudspeaker (30) according to any one of claims 3 to 22, characterized in that The loudspeaker (30) further comprises a first conductive branch (36), the first conductive branch (36) comprises a first part (361) and a second part (362), the second part (362) of the first conductive branch (36) is connected to the first part (361) of the first conductive branch (36), the first part (361) of the first conductive branch (36) is connected to the first voice coil (332) and the support (31) and is in electrical conduction with the first voice coil (332), and the second part (362) of the first conductive branch (36) is connected to the second voice coil (342) and the support (31) and is in electrical conduction with the second voice coil (342). The loudspeaker (30) further comprises a second conductive branch (37), the second conductive branch (37) is connected to the third voice coil (352) and the support (31) and is in electrical conduction with the third voice coil (352). The loudspeaker (30) further comprises a second conductive branch (37), the second conductive branch (37) is connected to the third voice coil (352) and the support (31) and is in electrical conduction with the third voice coil (352).

24. An electronic device (100), characterized by The loudspeaker (30) further comprises a second conductive branch (37), the second conductive branch (37) is connected to the third voice coil (352) and the support (31) and is in electrical conduction with the third voice coil (352). The loudspeaker (30) further comprises a second conductive branch (37), the second conductive branch (37) is connected to the third voice coil (352) and the support (31) and is in electrical conduction with the third voice coil (352). The shell (20) is provided with a first through hole (2011), a second through hole (2012) and a third through hole (2013) arranged at intervals, the first through hole (2011) communicates the first sound hole (381) with the outside of the electronic device (100), the second through hole (2012) communicates the second sound hole (382) with the outside of the electronic device (100), and the third through hole (2013) communicates the space on the side of the third diaphragm (351) away from the first diaphragm (331) and the second diaphragm (341) with the outside of the electronic device (100).

25. An electronic device (100), characterized by The shell (20) and the loudspeaker (30) are included, and the loudspeaker (30) is mounted on the shell (20). The loudspeaker (30) includes a support (31), a first diaphragm (331), a second diaphragm (341) and a third diaphragm (351), the support (31) includes a first surface (31a) and a second surface (31b) arranged oppositely, the periphery of the first diaphragm (331) and the periphery of the second diaphragm (341) are fixed on the first surface (31a), and the periphery of the third diaphragm (351) is fixed on the second surface (31b). A part of the shell (20) and the first diaphragm (331) jointly enclose a first sound outlet channel (203), a part of the shell (20) and the second diaphragm (341) jointly enclose a second sound outlet channel (204), and a part of the shell (20) and the third diaphragm (351) jointly enclose a third sound outlet channel (205), the first sound outlet channel (203), the second sound outlet channel (204) and the third sound outlet channel (205) are arranged at intervals and respectively communicate with the outside of the electronic device (100). The first diaphragm (331), the second diaphragm (341) and the third diaphragm (351) vibrate in the same direction.

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