Miniature loudspeaker and electronic equipment

Abstract

The utility model discloses a miniature loudspeaker and an electronic device, the miniature loudspeaker comprises a magnetic circuit assembly and a plurality of camera modules, the magnetic circuit assembly comprises a yoke, the yoke is provided with a plurality of central magnetic structures, the interior of each central magnetic structure is provided with an installation cavity, and the yoke is provided with a window communicated with the installation cavity; the camera modules are installed in the at least two installation cavities respectively, and the camera modules are arranged corresponding to the windows. At least two camera modules are integrated in the miniature loudspeaker, a multi-camera and multi-voice-coil integrated structure is formed, the stacking space of the whole machine is saved, the development requirement for lightening and thinning of electronic equipment is met, and compared with a miniature loudspeaker of a single-voice-coil structure, the miniature loudspeaker of the multi-voice-coil structure is better in acoustic performance and better in user experience. The types / pixels of different camera modules in the miniature loudspeaker can be different, and application requirements of multi-camera electronic equipment can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker and electronic equipment. Background Art

[0002] Nowadays, electronic devices such as mobile phones and tablets enrich people's lives, and electroacoustic converters play an indispensable role as audio devices.

[0003] With the development of society, electronic devices are becoming thinner and lighter, and the stacking technology of the whole machine design is increasingly challenged. The development trend of mobile phones is to become thinner and lighter. More and more components make the road to thinner and lighter electronic devices such as mobile phones more and more difficult. In particular, existing mobile phones often need to be equipped with multiple cameras with different pixels and functions to meet the needs of night shooting, wide-angle shooting, etc., which has formed a shackle on the thinness of electronic devices. Utility Model Content

[0004] The technical problem solved by the utility model is to provide an integrated micro-speaker with multiple cameras, and an electronic device with the micro-speaker.

[0005] In order to solve the above technical problems, the first technical solution adopted by the present invention is: a micro speaker, comprising:

[0006] A magnetic circuit assembly, the magnetic circuit assembly comprising a yoke, a plurality of central magnetic structures being provided on the yoke, a mounting cavity being provided inside the central magnetic structure, and a window being provided on the yoke and communicating with the mounting cavity;

[0007] A plurality of camera modules are installed in at least two of the installation cavities, respectively, and the camera modules are arranged corresponding to the windows.

[0008] In one embodiment, the central magnetic structure includes a central magnetic steel and a central washer, the bottom surface of the central magnetic steel is connected to the yoke, the top surface of the central magnetic steel is connected to the central washer, and looking down at the magnetic circuit assembly, the mounting cavity is set corresponding to the central area of ​​the central magnetic steel.

[0009] In one embodiment, the height of the mounting cavity is less than the thickness of the central magnetic steel; or, the height of the mounting cavity is equal to the thickness of the central magnetic steel; or, the height of the mounting cavity is greater than the thickness of the central magnetic steel and less than the sum of the thickness of the central magnetic steel and the thickness of the central washer.

[0010] In one embodiment, it also includes a basin frame and a vibration component, the magnetic circuit component and the vibration component are respectively connected to the basin frame, the vibration component includes a sound membrane component and a plurality of voice coils arranged on the sound membrane component, and the voice coils are arranged in a one-to-one correspondence with the central magnetic structure.

[0011] In one embodiment, outer wall surfaces of two adjacent voice coils that are close to each other are fixedly connected.

[0012] In one embodiment, the diameter of the window is smaller than the diameter of the installation cavity.

[0013] In one embodiment, a sealant is provided at the gap between the window and the camera module.

[0014] In one embodiment, at least two of the camera modules are of the same or different types.

[0015] In one embodiment, the shooting pixels of at least two of the camera modules are the same or different.

[0016] In order to solve the above technical problem, the second technical solution adopted by the present invention is: an electronic device, including the above micro speaker.

[0017] The beneficial effect of the utility model is that at least two camera modules are integrated in the micro speaker, forming a multi-camera multi-voice coil integrated architecture, which is conducive to saving the stacking space of the whole machine and meeting the development demand of thin and light electronic equipment. Moreover, compared with the micro speaker with a single voice coil architecture, the micro speaker with a multi-voice coil architecture has better acoustic performance and better user experience. The types / pixels of different camera modules in the micro speaker can be different, which can meet the application requirements of multi-camera electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a micro speaker according to Embodiment 1 of the present utility model;

[0020] Figure 2 A cross-sectional view of the micro-speaker of the first embodiment of the utility model Figure 1 ;

[0021] Figure 3 A cross-sectional view of the micro-speaker of the first embodiment of the utility model Figure 2 .

[0022] Description of Figure Numbers:

[0023] 1. Magnetic circuit assembly; 11. Yoke; 111. Window; 12. Central magnetic structure; 121. Installation cavity; 13. Flanging;

[0024] 2. Vibration assembly; 21. Sound membrane assembly; 22. Voice coil;

[0025] 3. Basin rack;

[0026] 4. Camera module; 41. Base. DETAILED DESCRIPTION

[0027] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0031] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] Embodiment 1

[0034] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is: an electronic device, including but not limited to a mobile phone, a tablet computer, a smart watch, etc., wherein the electronic device is equipped with a micro speaker.

[0035] The micro speaker includes a magnetic circuit component 1, a vibration component 2, a basin frame 3 and multiple camera modules 4, the vibration component 2 includes a sound membrane component 21 and multiple voice coils 22 connected to the sound membrane component 21, the sound membrane component 21 and the magnetic circuit component 1 are respectively connected to the basin frame 3, the voice coil 22 is located in the basin frame 3, and the magnetic circuit component 1 has a magnetic gap for the voice coil 22 to move; the magnetic circuit component 1 includes a yoke 11, the yoke 11 is provided with multiple central magnetic structures 12, the number of the voice coils 22 is equal to the number of the central magnetic structures 12 and the two are arranged in a one-to-one correspondence, the interior of the central magnetic structure 12 is provided with an installation cavity 121, the yoke 11 is provided with a window 111 connected to the installation cavity 121, and the window 111 is connected to the external space; the camera modules 4 are respectively installed in at least two of the installation cavities 121, and the camera modules 4 are arranged corresponding to the windows 111. It is easy to understand that there are multiple windows 111 , and the windows 111 are connected to the installation cavities 121 in a one-to-one correspondence.

[0036] In this embodiment, the yoke 11 has a bent flange 13, and the first part of the magnetic gap is formed between the flange 13 and the central magnetic structure 12, and the second part of the magnetic gap is formed between two adjacent central magnetic structures 12. The first part of the magnetic gap is connected to the second part of the magnetic gap to form an overall ring-shaped magnetic gap.

[0037] Optionally, a part of the camera module 4 is exposed relative to the bottom surface of the yoke 11, so that the yoke 11 can prevent the camera module 4 from receiving external light. To prevent dust, water vapor, etc. from entering the installation cavity 121 through the window 111 to contaminate the camera module 4, preferably, a sealant is provided at the gap between the window 111 and the camera module 4. Of course, in actual products, it is also possible that the camera module 4 does not protrude relative to the bottom surface of the yoke 11.

[0038] Specifically, the central magnetic structure 12 includes a central magnetic steel and a central washer, the bottom surface of the central magnetic steel is connected to the yoke 11, the top surface of the central magnetic steel is connected to the central washer, and the mounting cavity 121 is arranged corresponding to the central area of ​​the central magnetic steel when looking down at the magnetic circuit assembly 1. The middle part of the central magnetic steel provides less available magnetic flux, so the mounting cavity 121 is arranged corresponding to the central area of ​​the central magnetic steel, which can minimize the influence of the setting of the mounting cavity 121 on the acoustic performance of the micro speaker.

[0039] In this embodiment, the height of the mounting cavity 121 is equal to the thickness of the central magnetic steel. In other embodiments, the height of the mounting cavity 121 may be greater than the thickness of the central magnetic steel or less than the thickness of the central magnetic steel. When the height of the mounting cavity 121 is greater than the thickness of the central magnetic steel, a partial area of ​​the mounting cavity 121 is arranged on the central washer and a blind groove is formed on the central washer. When the height of the mounting cavity 121 is less than the thickness of the central magnetic steel, the mounting cavity 121 is a non-through hole structure on the central magnetic steel.

[0040] In order to improve the structural stability of the micro speaker and improve the phenomenon of asynchronous vibration of multiple voice coils 22, optionally, the outer wall surfaces of two adjacent voice coils 22 close to each other are fixedly connected, and the fixed connection method includes but is not limited to adhesive connection.

[0041] In order to prevent the camera from accidentally leaving the installation cavity 121 while ensuring the continuity of the magnetic circuit in the micro speaker, the diameter of the window 111 is preferably smaller than the diameter of the installation cavity 121 .

[0042] At least two of the camera modules 4 are of the same or different types; at least two of the camera modules 4 have the same or different shooting pixels. The specific types and pixels of the camera modules 4 can be selectively combined and set as needed to meet the application requirements of different electronic devices.

[0043] In this embodiment, the camera module 4 includes a base 41, the top of the base 41 contacts the top surface of the installation cavity 121, the bottom of the base 41 contacts the yoke 11, and the surrounding walls of the base 41 contact the inner wall surfaces of the installation cavity 121 respectively, that is, the camera module 4 can be stably positioned and fixed in the installation cavity 121.

[0044] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A micro speaker, characterized in that: include A magnetic circuit assembly, the magnetic circuit assembly comprising a yoke, a plurality of central magnetic structures being provided on the yoke, a mounting cavity being provided inside the central magnetic structure, and a window being provided on the yoke and communicating with the mounting cavity; A plurality of camera modules are installed in at least two of the installation cavities, respectively, and the camera modules are arranged corresponding to the windows.

2. The micro-speaker according to claim 1, characterized in that: The central magnetic structure includes a central magnetic steel and a central washer. The bottom surface of the central magnetic steel is connected to the yoke, and the top surface of the central magnetic steel is connected to the central washer. Looking down at the magnetic circuit assembly, the installation cavity is set corresponding to the central area of ​​the central magnetic steel.

3. The micro-speaker according to claim 2, characterized in that: The height of the mounting cavity is less than the thickness of the central magnetic steel; or, the height of the mounting cavity is equal to the thickness of the central magnetic steel; or, the height of the mounting cavity is greater than the thickness of the central magnetic steel and less than the sum of the thickness of the central magnetic steel and the thickness of the central washer.

4. The micro-speaker according to claim 1, characterized in that: It also includes a basin frame and a vibration component, the magnetic circuit component and the vibration component are respectively connected to the basin frame, the vibration component includes a sound membrane component and a plurality of voice coils arranged on the sound membrane component, and the voice coils are arranged in a one-to-one correspondence with the central magnetic structure.

5. The micro-speaker according to claim 4, characterized in that: The outer wall surfaces of two adjacent voice coils close to each other are fixedly connected.

6. The micro-speaker according to claim 1, characterized in that: The caliber of the window is smaller than the caliber of the installation cavity.

7. The micro-speaker according to claim 1, characterized in that: A sealant is provided at the gap between the window and the camera module.

8. The micro-speaker according to claim 1, characterized in that: At least two of the camera modules are of the same or different types.

9. The micro-speaker according to claim 1, characterized in that: The shooting pixels of at least two of the camera modules are the same or different.

10. An electronic device, characterized in that: The micro-speaker comprises the micro-speaker as claimed in any one of claims 1 to 9.

Images