Sound unit and electronic equipment

Abstract

This utility model discloses a sound-generating unit and an electronic device. The sound-generating unit includes a magnetic circuit assembly and a first camera module. The magnetic circuit assembly includes a yoke, on which a central magnetic structure and multiple central magnetic structures are provided. A corresponding central magnetic structure is provided between two adjacent central magnetic structures. The magnetic poles of the central magnetic structures face opposite directions to the magnetic poles of their adjacent central magnetic structures. A first mounting cavity is provided inside the central magnetic structure, and a first window communicating with the first mounting cavity is provided on the yoke. The first camera module is installed in the first mounting cavity, and the first camera module is positioned corresponding to the first window. This sound-generating unit integrates a camera module, enabling it to have a camera function. Compared to the existing separate design of the sound-generating unit and camera module, this sound-generating unit with camera function significantly reduces the space occupied inside the electronic device, saving stacking space and meeting the development needs of thinner and lighter electronic devices.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic converter technology, and in particular to a sound-generating unit and electronic equipment. Background Technology

[0002] Currently, mobile phones, tablets and other electronic devices enrich people's lives. These electronic devices are generally equipped with electroacoustic converters and camera modules. As electronic devices become thinner and lighter, the problem of electroacoustic converters and camera modules occupying internal space in electronic devices is becoming more and more obvious. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a sound-generating unit with camera function, and an electronic device having the sound-generating unit.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a sound-generating unit, comprising:

[0005] A magnetic circuit assembly includes a yoke, on which an intermediate magnetic structure and multiple central magnetic structures are provided. An intermediate magnetic structure is provided between two adjacent intermediate magnetic structures. The magnetic pole orientation of the intermediate magnetic structure is opposite to that of the magnetic pole orientation of the adjacent central magnetic structure. A first mounting cavity is provided inside the intermediate magnetic structure. A first window communicating with the first mounting cavity is provided on the yoke.

[0006] A first camera module is installed in the first mounting cavity, and the first camera module is set corresponding to the first window.

[0007] Furthermore, the intermediate magnetic structure includes an intermediate magnet and an intermediate washer. The bottom surface of the intermediate magnet is connected to the yoke, and the top surface of the intermediate magnet is connected to the intermediate washer. Viewed from above, the first mounting cavity is located in the central area of ​​the intermediate magnet.

[0008] Furthermore, the height of the first mounting cavity is less than the thickness of the intermediate magnet; or, the height of the first mounting cavity is equal to the thickness of the intermediate magnet; or, the height of the first mounting cavity is greater than the thickness of the intermediate magnet and less than the sum of the thickness of the intermediate magnet and the thickness of the intermediate washer.

[0009] Furthermore, at least part of the central magnetic structure has a second mounting cavity inside, the yoke has a second window communicating with the second mounting cavity, and also includes a second camera module, the second camera module is installed in the second mounting cavity, and the second camera module is set corresponding to the second window.

[0010] Furthermore, the central magnetic structure includes a central magnet and a central washer. The bottom surface of the central magnet is connected to the yoke, and the top surface of the central magnet is connected to the central washer. Viewed from above, the second mounting cavity is located in the central region of the central magnet.

[0011] Furthermore, the height of the second mounting cavity is less than the thickness of the central magnet; or, the height of the second mounting cavity is equal to the thickness of the central magnet; or, the height of the second mounting cavity is greater than the thickness of the central magnet and less than the sum of the thickness of the central magnet and the thickness of the central washer.

[0012] Furthermore, each of the central magnetic structures is provided with a second mounting cavity inside.

[0013] Furthermore, the first camera module and the second camera module may be of the same or different types.

[0014] Furthermore, it also includes a frame and a vibration assembly. The magnetic circuit assembly and the vibration assembly are respectively connected to the frame. The vibration assembly includes a diaphragm assembly and a plurality of voice coils disposed on the diaphragm assembly. The voice coils are arranged in a one-to-one correspondence with the central magnetic structure, and the intermediate magnetic structure is arranged in a gap corresponding to the gap between two adjacent voice coils.

[0015] In order to solve the above-mentioned technical problems, the present invention also adopts the following technical solution: an electronic device, including the above-mentioned sound-generating unit.

[0016] The beneficial effects of this utility model are as follows: This sound unit integrates a camera module, enabling the sound unit to have a camera function. Compared with the existing separate design of the sound unit and camera module, this sound unit with camera function greatly reduces the space occupied inside the electronic device, saves the stacking space of the whole device, and meets the development needs of the thin and light electronic devices. Moreover, compared with the sound unit with a single voice coil architecture, the sound unit with a multi-voice coil architecture has better acoustic performance and a better user experience. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the sound-generating unit;

[0018] Figure 2 A schematic diagram of the internal structure of the sound-generating unit;

[0019] Figure 3 This is a schematic diagram of a partial explosion of the sound-generating unit.

[0020] Label Explanation:

[0021] 1. Magnetic circuit assembly; 11. Yoke; 111. First window; 112. Second window; 12. Intermediate magnetic structure; 121. First mounting cavity; 122. Intermediate magnet; 123. Intermediate washer; 13. Central magnetic structure; 131. Second mounting cavity; 132. Central magnet; 133. Central washer; 14. Side magnetic structure;

[0022] 2. Vibration assembly; 21. Diaphragm assembly; 22. Voice coil;

[0023] 3. Sink stand;

[0024] 4. First camera module;

[0025] 5. Second camera module. Detailed Implementation

[0026] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] Please refer to Figures 1 to 3 The sound-generating unit includes:

[0028] A magnetic circuit assembly 1 includes a yoke 11, on which an intermediate magnetic structure 12 and a plurality of central magnetic structures 13 are provided. An intermediate magnetic structure 12 is provided between two adjacent intermediate magnetic structures 12. The magnetic pole orientation of the intermediate magnetic structure 12 is opposite to that of the adjacent central magnetic structure 13. A first mounting cavity 121 is provided inside the intermediate magnetic structure 12. A first window 111 communicating with the first mounting cavity 121 is provided on the yoke 11.

[0029] The first camera module 4 is installed in the first mounting cavity 121, and the first camera module 4 is set corresponding to the first window 111.

[0030] As can be seen from the above description, the beneficial effects of this utility model are as follows: This sound unit integrates a camera module, enabling the sound unit to have a camera function. Compared with the existing separate design of the sound unit and camera module, this sound unit with camera function greatly reduces the space occupied inside the electronic device, saves the stacking space of the whole machine, and meets the development needs of the thin and light electronic devices. Moreover, compared with the single voice coil 22 architecture sound unit, the multi-voice coil 22 architecture sound unit has better acoustic performance and a better user experience.

[0031] Furthermore, the intermediate magnetic structure 12 includes an intermediate magnet 122 and an intermediate washer 123. The bottom surface of the intermediate magnet 122 is connected to the yoke 11, and the top surface of the intermediate magnet 122 is connected to the intermediate washer 123. Looking down at the magnetic circuit assembly 1, the first mounting cavity 121 is set in the central area of ​​the intermediate magnet 122.

[0032] As can be seen from the above description, the first mounting cavity 121 is positioned in the central region of the intermediate magnet 122, which is beneficial for balancing the center of gravity of the sound-generating unit.

[0033] Furthermore, the height of the first mounting cavity 121 is less than the thickness of the intermediate magnet 122; or, the height of the first mounting cavity 121 is equal to the thickness of the intermediate magnet 122; or, the height of the first mounting cavity 121 is greater than the thickness of the intermediate magnet 122, and less than the sum of the thickness of the intermediate magnet 122 and the thickness of the intermediate washer 123.

[0034] As can be seen from the above description, the height of the first mounting cavity 121 can be specifically designed according to the height of the first camera module 4, which is conducive to enriching the diversity of the sound-emitting units.

[0035] Furthermore, at least part of the central magnetic structure 13 has a second mounting cavity 131 inside, the yoke 11 has a second window 112 communicating with the second mounting cavity 131, and also includes a second camera module 5, the second camera module 5 is installed in the second mounting cavity 131, and the second camera module 5 is set corresponding to the second window 112.

[0036] As can be seen from the above description, the presence of the second camera module 5 allows the sound-emitting unit to better meet the design requirements of multiple cameras in electronic devices.

[0037] Furthermore, the central magnetic structure 13 includes a central magnet 132 and a central washer 133. The bottom surface of the central magnet 132 is connected to the yoke 11, and the top surface of the central magnet 132 is connected to the central washer 133. Looking down at the magnetic circuit assembly 1, the second mounting cavity 131 is set in the central area of ​​the central magnet 132.

[0038] As can be seen from the above description, the second mounting cavity 131 is positioned in the central region of the central magnet 132, which is beneficial for balancing the center of gravity of the sound-generating unit.

[0039] Furthermore, the height of the second mounting cavity 131 is less than the thickness of the central magnet 132; or, the height of the second mounting cavity 131 is equal to the thickness of the central magnet 132; or, the height of the second mounting cavity 131 is greater than the thickness of the central magnet 132, and less than the sum of the thickness of the central magnet 132 and the thickness of the central washer 133.

[0040] As can be seen from the above description, the height of the second mounting cavity 131 can be specifically designed according to the height of the second camera module 5, which is conducive to enriching the diversity of the sound-emitting units.

[0041] Furthermore, each of the central magnetic structures 13 is provided with a second mounting cavity 131 inside.

[0042] As can be seen from the above description, each central magnetic structure 13 has a second mounting cavity 131 inside, which is beneficial to balancing the magnetic field of the sound-generating unit.

[0043] Furthermore, the first camera module 4 and the second camera module 5 may be of the same or different types.

[0044] As can be seen from the above description, the specific types of the first camera module 4 and the second camera module 5 can be set according to actual needs.

[0045] Furthermore, it also includes a frame 3 and a vibration assembly 2. The magnetic circuit assembly 1 and the vibration assembly 2 are respectively connected to the frame 3. The vibration assembly 2 includes a diaphragm assembly 21 and a plurality of voice coils 22 disposed on the diaphragm assembly 21. The voice coils 22 are arranged in a one-to-one correspondence with the central magnetic structure 13. The intermediate magnetic structure 12 is arranged in a gap between two adjacent voice coils 22.

[0046] Electronic device, including the aforementioned sound-generating unit.

[0047] As can be seen from the above description, this electronic device can achieve a thin and light design.

[0048] Embodiment 1 of this utility model is: an electronic device, including but not limited to mobile phones, tablet computers, smartwatches, etc., wherein the electronic device is equipped with a sound-generating unit.

[0049] Please refer to Figures 1 to 3The miniature loudspeaker includes a magnetic circuit assembly 1, a vibration assembly 2, a frame 3, and a first camera module 4. The vibration assembly 2 includes a diaphragm assembly 21 and multiple voice coils 22 connected to the diaphragm assembly 21. The diaphragm assembly 21 and the magnetic circuit assembly 1 are respectively connected to the frame 3. The voice coils 22 are located inside the frame 3. The magnetic circuit assembly 1 has a magnetic gap for the voice coils 22 to move. The magnetic circuit assembly 1 includes a yoke 11. The yoke 11 is provided with an intermediate magnetic structure 12 and multiple central magnetic structures 13. An intermediate magnetic structure 12 is correspondingly provided between two adjacent intermediate magnetic structures 12. The magnetic pole orientation of 2 is opposite to that of the magnetic pole orientation of the adjacent central magnetic structure 13; the number of voice coils 22 is equal to the number of central magnetic structures 13 and they are arranged in a one-to-one correspondence; the intermediate magnetic structure 12 is arranged corresponding to the gap between two adjacent voice coils 22; the interior of the intermediate magnetic structure 12 is provided with a first mounting cavity 121; the yoke 11 is provided with a first window 111 communicating with the first mounting cavity 121; the first window 111 communicates with the outside space; the first camera module 4 is installed in the first mounting cavity 121, and the first camera module 4 is arranged corresponding to the first window 111.

[0050] In some embodiments, the magnetic circuit assembly 1 further includes a side magnetic structure 14 disposed on the yoke 11. The side magnetic structure 14 includes a side magnet and a side washer. The side washer is connected to the basin frame 3. The side magnet is connected to the side washer and the yoke 11. The side magnetic structure 14 is located outside the central magnetic structure 13.

[0051] Optionally, a portion of the first camera module 4 is exposed relative to the bottom surface of the yoke 11. This prevents the yoke 11 from interfering with the first camera module 4's reception of external light. To prevent dust, moisture, etc., from entering the first mounting cavity 121 through the first window 111 and contaminating the first camera module 4, preferably, sealant is provided at the gap between the first window 111 and the first camera module 4. Of course, in actual products, it is also possible for the first camera module 4 not to protrude relative to the bottom surface of the yoke 11.

[0052] The intermediate magnetic structure 12 includes an intermediate magnet 122 and an intermediate washer 123. The bottom surface of the intermediate magnet 122 is connected to the yoke 11, and the top surface of the intermediate magnet 122 is connected to the intermediate washer 123. Looking down at the magnetic circuit assembly 1, the first mounting cavity 121 is positioned corresponding to the central region of the intermediate magnet 122. Since the available magnetic flux in the middle of the intermediate magnet 122 is relatively small, positioning the first mounting cavity 121 corresponding to the central region of the intermediate magnet 122 minimizes the impact of the first mounting cavity 121 on the acoustic performance of the sound-generating unit.

[0053] In this embodiment, the height of the first mounting cavity 121 is equal to the thickness of the intermediate magnet 122; in other embodiments, the height of the first mounting cavity 121 is less than the thickness of the intermediate magnet 122; or, the height of the first mounting cavity 121 is greater than the thickness of the intermediate magnet 122, and less than the sum of the thickness of the intermediate magnet 122 and the thickness of the intermediate washer 123.

[0054] In one or more embodiments, at least part of the central magnetic structure 13 has a second mounting cavity 131 inside, and the yoke 11 has a second window 112 communicating with the second mounting cavity 131. The first window 111 communicates with the outside space. The sound-emitting unit also includes a second camera module 5. The second camera module 5 is installed in the second mounting cavity 131 and is set corresponding to the second window 112.

[0055] The central magnetic structure 13 includes a central magnet 132 and a central washer 133. The bottom surface of the central magnet 132 is connected to the yoke 11, and the top surface of the central magnet 132 is connected to the central washer 133. Looking down at the magnetic circuit assembly 1, the second mounting cavity 131 is positioned corresponding to the central region of the central magnet 132. Since the available magnetic flux in the middle of the central magnet 132 is relatively small, positioning the second mounting cavity 131 corresponding to the central region of the central magnet 132 minimizes the impact of the second mounting cavity 131 on the acoustic performance of the sound-generating unit.

[0056] In this embodiment, the height of the second mounting cavity 131 is equal to the thickness of the central magnet 132; in other embodiments, the height of the second mounting cavity 131 is less than the thickness of the central magnet 132; or, the height of the second mounting cavity 131 is greater than the thickness of the central magnet 132, and less than the sum of the thickness of the central magnet 132 and the thickness of the central washer 133.

[0057] In actual products, it is also possible for each of the central magnetic structures 13 to have a second mounting cavity 131 inside.

[0058] The first camera module 4 and the second camera module 5 may be of the same or different types.

[0059] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sound-generating unit, characterized in that, include A magnetic circuit assembly includes a yoke, on which an intermediate magnetic structure and multiple central magnetic structures are provided. An intermediate magnetic structure is provided between two adjacent intermediate magnetic structures. The magnetic pole orientation of the intermediate magnetic structure is opposite to that of the magnetic pole orientation of the adjacent central magnetic structure. A first mounting cavity is provided inside the intermediate magnetic structure. A first window communicating with the first mounting cavity is provided on the yoke. A first camera module is installed in the first mounting cavity, and the first camera module is set corresponding to the first window.

2. The sound-generating unit according to claim 1, characterized in that, The intermediate magnetic structure includes an intermediate magnet and an intermediate washer. The bottom surface of the intermediate magnet is connected to the yoke, and the top surface of the intermediate magnet is connected to the intermediate washer. Viewed from above, the first mounting cavity is located in the central area of ​​the intermediate magnet.

3. The sound-generating unit according to claim 2, characterized in that, The height of the first mounting cavity is less than the thickness of the intermediate magnet; or, the height of the first mounting cavity is equal to the thickness of the intermediate magnet; or, the height of the first mounting cavity is greater than the thickness of the intermediate magnet and less than the sum of the thickness of the intermediate magnet and the thickness of the intermediate washer.

4. The sound-generating unit according to claim 1, characterized in that, At least part of the central magnetic structure has a second mounting cavity inside, the yoke has a second window communicating with the second mounting cavity, and also includes a second camera module, the second camera module is installed in the second mounting cavity, and the second camera module is set corresponding to the second window.

5. The sound-generating unit according to claim 4, characterized in that, The central magnetic structure includes a central magnet and a central washer. The bottom surface of the central magnet is connected to the yoke, and the top surface of the central magnet is connected to the central washer. Viewed from above, the second mounting cavity is located in the central region of the central magnet.

6. The sound-generating unit according to claim 5, characterized in that, The height of the second mounting cavity is less than the thickness of the central magnet; or, the height of the second mounting cavity is equal to the thickness of the central magnet; or, the height of the second mounting cavity is greater than the thickness of the central magnet and less than the sum of the thickness of the central magnet and the thickness of the central washer.

7. The sound-generating unit according to claim 4, characterized in that, Each of the central magnetic structures has a second mounting cavity inside.

8. The sound-generating unit according to claim 4, characterized in that, The first camera module and the second camera module may be of the same or different types.

9. The sound-generating unit according to claim 1, characterized in that, It also includes a frame and a vibration assembly. The magnetic circuit assembly and the vibration assembly are respectively connected to the frame. The vibration assembly includes a diaphragm assembly and a plurality of voice coils disposed on the diaphragm assembly. The voice coils are arranged in a one-to-one correspondence with the central magnetic structure. The intermediate magnetic structure is arranged in a gap corresponding to the two adjacent voice coils.

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

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