Micro speaker and electronic device

Abstract

The utility model discloses a micro loudspeaker and electronic equipment, micro loudspeaker includes basin frame, sound film and front cover, and sound film includes the outer fixed part of connecting basin frame, and the outer fixed part includes this department and sets up the edge covering department along this department brim, and the edge covering department is located the outside of basin frame, and the inner peripheral wall of edge covering department contacts basin frame, the front cover cover is established on sound film, and the front cover has the flanging of being located the outside of edge covering department, and the flanging has the boss circle of extruding edge covering department. The flanging of front cover of micro loudspeaker has the boss circle of extruding sound film edge covering department, and the partial area of edge covering department can be close -fitted the outer wall surface of basin frame after being extruded by the boss circle, thereby forms the waterproof structure of additional, reaches the effect of improving micro loudspeaker waterproof performance. Moreover, the existence of boss circle is also favorable to improving the structural strength of flanging, is favorable to guaranteeing the structural stability of front cover.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic converter technology, and in particular to miniature loudspeakers and electronic devices. Background Technology

[0002] Miniature loudspeakers, as commonly used electroacoustic transducers that convert electrical energy into sound energy, play an indispensable role in sound amplifier systems.

[0003] With the increasing waterproofing requirements for consumer electronic devices such as mobile phones and tablets, higher waterproofing performance requirements are also being placed on the miniature speakers installed in them. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a miniature speaker with excellent waterproof performance, and an electronic device having the miniature speaker.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a miniature loudspeaker, comprising:

[0006] Sink stand;

[0007] The diaphragm includes an outer fixing part that connects to the basin frame. The outer fixing part includes a main part and a edging part provided along the edge of the main part. The edging part is located on the outside of the basin frame, and the inner peripheral wall of the edging part contacts the basin frame.

[0008] The front cover is placed on the diaphragm and has a flange located on the outside of the edging portion, and the flange has a protrusion that presses against the edging portion.

[0009] Furthermore, the convex ring surrounds the edging portion.

[0010] Furthermore, the number of the convex rings is one or more.

[0011] Furthermore, the outer wall of the flange has a concave ring corresponding to the convex ring, which is formed by stamping.

[0012] Furthermore, the bottom surface of the main body is bonded and fixed to the basin frame.

[0013] Furthermore, the inner wall surface of the edging portion is bonded and fixed to the basin frame.

[0014] Furthermore, the inner wall surface of the flange is bonded and fixed to the outer wall surface of the edging portion.

[0015] Furthermore, the front cover is bonded and fixed to the top surface of the main body.

[0016] Furthermore, the outer wall of the basin stand has an outwardly protruding abutment, the abutment having an abutment plane that contacts the edging surface, and the convex ring corresponds to the abutment plane.

[0017] 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 miniature speaker.

[0018] The beneficial effects of this invention are as follows: the flange of the front cover of the miniature speaker has a raised ring that can compress the edge of the diaphragm. After being compressed by the raised ring, a local area of ​​the edge can fit tightly against the outer wall of the frame, thereby forming an additional waterproof structure and improving the waterproof performance of the miniature speaker. Moreover, the presence of the raised ring also helps to improve the structural strength of the flange and ensure the structural stability of the front cover. Attached Figure Description

[0019] Figure 1 A cross-sectional view of a miniature loudspeaker;

[0020] Figure 2 for Figure 1 Enlarged view of detail A in the middle;

[0021] Figure 3 This is a schematic diagram of the front cover structure in a miniature loudspeaker;

[0022] Figure 4 This is a schematic diagram of part of the structure of a miniature loudspeaker.

[0023] Label Explanation:

[0024] 1. Front cover; 11. Flanged edge; 111. Convex ring; 112. Concave ring;

[0025] 2. Sink stand; 21. Contact surface;

[0026] 3. Voice coil;

[0027] 4. Diaphragm; 41. External fixing part; 411. Main part; 412. Edge binding part;

[0028] 5. Top of the ball;

[0029] 61. Magnetic shield; 62. Central magnetic assembly; 63. Side magnetic assembly; 631. Side magnet; 632. Side washer;

[0030] 7. Skeleton. Detailed Implementation

[0031] 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.

[0032] Please refer to Figures 1 to 4A miniature loudspeaker includes a frame 2, a diaphragm 4, and a front cover 1. The diaphragm 4 includes an outer fixing part 41 that connects to the frame 2. The outer fixing part 41 includes a main part 411 and a rim part 412 provided along the edge of the main part 411. The rim part 412 is located on the outside of the frame 2, and the inner peripheral wall of the rim part 412 contacts the frame 2. The front cover 1 covers the diaphragm 4 and has a flange 11 located on the outside of the rim part 412. The flange 11 has a protrusion 111 that presses against the rim part 412.

[0033] As can be seen from the above description, the beneficial effects of this utility model are as follows: the flange 11 of the front cover 1 of the miniature speaker has a convex ring 111 that can compress the edge portion 412 of the diaphragm 4. After being compressed by the convex ring 111, a local area of ​​the edge portion 412 can be tightly attached to the outer wall of the frame 2, thereby forming an additional waterproof structure and improving the waterproof performance of the miniature speaker. Moreover, the presence of the convex ring 111 also helps to improve the structural strength of the flange 11 and ensure the structural stability of the front cover 1.

[0034] Furthermore, the convex ring 111 surrounds the edging portion 412.

[0035] As can be seen from the above description, the convex ring 111 is arranged in a circle along the outline of the flange 11, which allows the edging part 412 to form a continuous and complete ring in the area of ​​the frame 2, thereby ensuring the waterproof performance of the miniature speaker.

[0036] Furthermore, the number of the convex rings 111 is one or more.

[0037] As can be seen from the above description, the number of convex rings 111 can be selected as needed according to the actual waterproof level requirements.

[0038] Furthermore, the outer wall of the flange 11 has a concave ring 112 corresponding to the convex ring 111, the convex ring 111 being stamped.

[0039] As can be seen from the above description, the stamping of the convex ring 111 can facilitate the processing and manufacturing of the front cover 1 and help control the manufacturing cost of the front cover 1.

[0040] Furthermore, the bottom surface of the main body 411 is bonded and fixed to the basin frame 2.

[0041] Furthermore, the inner wall surface of the edging portion 412 is bonded and fixed to the basin frame 2.

[0042] As can be seen from the above description, the diaphragm 4 and the frame 2 can be stably bonded and fixed.

[0043] Furthermore, the inner wall surface of the flange 11 is bonded and fixed to the outer wall surface of the edging portion 412.

[0044] Furthermore, the front cover 1 is bonded and fixed to the top surface of the main body 411.

[0045] As can be seen from the above description, the diaphragm 4 and the front cover 1 can be stably bonded and fixed.

[0046] Furthermore, the outer wall of the basin stand 2 has an outwardly protruding abutment, the abutment having an abutment plane 21 that contacts the surface of the edging portion 412, and the convex ring 111 corresponds to the abutment plane 21.

[0047] As can be seen from the above description, the contact between the contact platform and the edge 412 allows the edge 412 to form a surface contact with the basin frame 2, thereby ensuring the bonding area between the edge 412 and the basin frame 2; the convex ring 111 is set corresponding to the contact plane 21, which allows the convex ring 111 to better compress the edge 412, thereby forming a better waterproof effect.

[0048] Electronic devices, including the aforementioned miniature speaker.

[0049] As can be seen from the above description, the miniature speaker in this electronic device has excellent waterproof performance.

[0050] Please refer to Figures 1 to 4 One embodiment of this utility model is a miniature loudspeaker, including a front cover 1, a frame 2, a voice coil 3, a diaphragm system, and a magnetic circuit system. Both the diaphragm system and the magnetic circuit system are connected to the frame 2. The magnetic circuit system includes a magnetic cover 61 and a central magnetic assembly 62 and a side magnetic assembly 63 respectively disposed on the magnetic cover 61. A magnetic gap is formed between the central magnetic assembly 62 and the side magnetic assembly 63. The central magnetic assembly 62 includes a central magnet and a central washer. The central magnet is located below the central washer. The central magnet is connected to both the magnetic cover 61 and the central washer. The side magnet assembly 63 includes a side magnet 631 and a side washer 632. The side magnet 631 is located below the side washer 632 and is connected to the magnetic cover 61 and the side washer 632 respectively. The diaphragm system includes a diaphragm 4 and a dome 5 disposed on the diaphragm 4. The diaphragm 4 includes an inner fixing part, a folded ring part and an outer fixing part 41 connected in sequence from the inside to the outside. The outer fixing part 41 is connected to the frame 2, the dome 5 is connected to the inner fixing part, and the voice coil 3 is connected to the diaphragm assembly and is disposed corresponding to the magnetic gap.

[0051] In some embodiments, the washer 632 and the basin stand 2 are an integral structure formed by insert injection molding, or the washer 632 and the basin stand 2 are both metal structural parts, and the washer 632 and the basin stand 2 are an integral structure formed by integral processing.

[0052] The external fixing part 41 includes a main part 411 and a edging part 412 provided along the edge of the main part 411. The edging part 412 is located on the outside of the basin frame 2, and the inner peripheral wall of the edging part 412 contacts the basin frame 2. The front cover 1 is covered on the diaphragm 4. The front cover 1 has a flange 11 located on the outside of the edging part 412. The flange 11 has a protrusion 111 that presses against the edging part 412. The protrusion 111 surrounds the edging part 412.

[0053] In this embodiment, the number of the convex ring 111 is one. In other embodiments, the number of the convex ring 111 can be multiple, such as two, three or more.

[0054] In this embodiment, the outer wall of the flange 11 has a concave ring 112 corresponding to the convex ring 111, and the convex ring 111 is a stamping structure formed by stamping the flange 11 of the front cover 1.

[0055] To improve the structural stability of the miniature speaker, the bottom surface of the main body 411 is bonded and fixed to the frame 2; the inner wall surface of the edging portion 412 is bonded and fixed to the frame 2; the inner wall surface of the flange 11 is bonded and fixed to the outer wall surface of the edging portion 412; and the front cover 1 is bonded and fixed to the top surface of the main body 411.

[0056] The diaphragm 4 is made of PEEK, TPEE, or rubber.

[0057] Optionally, the miniature loudspeaker also includes a frame 7, through which the voice coil 3 is connected to the diaphragm assembly.

[0058] In one or more embodiments, the outer wall of the basin stand 2 has an outwardly protruding abutment, the abutment having an abutment plane 21 that contacts the surface of the edging portion 412, and the convex ring 111 corresponds to the abutment plane 21.

[0059] This embodiment also provides an electronic device, which includes the aforementioned miniature speaker.

[0060] 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 miniature loudspeaker, characterized in that, include Sink stand; The diaphragm includes an outer fixing part that connects to the basin frame. The outer fixing part includes a main part and a edging part provided along the edge of the main part. The edging part is located on the outside of the basin frame, and the inner peripheral wall of the edging part contacts the basin frame. The front cover is placed on the diaphragm and has a flange located on the outside of the edging portion, and the flange has a protrusion that presses against the edging portion.

2. The miniature loudspeaker according to claim 1, characterized in that, The convex ring surrounds the edging portion.

3. The miniature loudspeaker according to claim 1, characterized in that, The number of the convex rings is one or more.

4. The miniature loudspeaker according to claim 1, characterized in that, The outer wall of the flange has a concave ring corresponding to the convex ring, which is formed by stamping.

5. The miniature loudspeaker according to claim 1, characterized in that, The bottom surface of the main body is bonded and fixed to the basin frame.

6. The miniature loudspeaker according to claim 1, characterized in that, The inner wall surface of the edging part is bonded and fixed to the basin frame.

7. The miniature loudspeaker according to claim 1, characterized in that, The inner wall surface of the flange is bonded and fixed to the outer wall surface of the edging portion.

8. The miniature loudspeaker according to claim 1, characterized in that, The front cover is bonded and fixed to the top surface of the main body.

9. The miniature loudspeaker according to claim 1, characterized in that, The outer wall of the basin stand has an outwardly protruding abutment, the abutment having an abutment plane that contacts the edging surface, and the convex ring corresponding to the abutment plane.

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

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