Speaker with fixed magnet structure end and bone conduction earphone

Abstract

The utility model discloses a kind of loudspeaker and bone conduction earphone of permanent magnet structure end placement, comprising: shell, assembly cavity is provided in shell, and the at least one end of assembly cavity is provided with assembly opening;Permanent magnet structure, fixed structure is fixedly set in shell, and located assembly opening place to cover assembly opening;Vibration connection structure, vibration connection structure is located in assembly cavity, and vibration connection structure and shell are fixedly set;Voice coil structure, voice coil structure is located in assembly cavity, and voice coil structure and vibration connection structure are fixedly set;Voice coil structure audio signal and with permanent magnet structure interact.Using the above scheme, a kind of loudspeaker and bone conduction earphone of permanent magnet structure end placement are provided, which are fixedly assembled by permanent magnet structure and shell and cover assembly opening, and voice coil structure is set on vibration connection structure to realize the vibration of vibration connection structure under the cooperation of permanent magnet structure by voice coil structure audio signal.

Description

Technical Field

[0001] This utility model belongs to the field of bone conduction headphones, specifically relating to a speaker with a solid magnetic structure at one end and bone conduction headphones. Background Technology

[0002] Bone conduction loudspeakers work by inputting varying audio signals into the voice coil, causing the voice coil to generate electromagnetic force under the influence of a magnet's magnetic field, thus making the loudspeaker vibrate. The vibrating loudspeaker acts directly on the skull (temporal bone), and the vibration is transmitted through the bone to the cochlea (inner ear), where it is ultimately perceived by the auditory nerve.

[0003] Existing bone conduction loudspeakers typically include a housing, a diaphragm, a solid magnet structure, and a voice coil structure. An assembly cavity is set inside the housing, and the diaphragm, solid magnet structure, and voice coil structure are all set inside the assembly cavity. The voice coil structure and the housing are fixedly set, the fixed part of the diaphragm is fixedly set, and the solid magnet structure is set on the vibrating part of the diaphragm, so that the voice coil structure interacts with the solid magnet structure when an audio signal is transmitted, thereby realizing the vibration of the diaphragm.

[0004] In addition, existing methods for sealing the assembly cavity to prevent vibrations within the cavity from being disturbed typically involve installing end caps at both ends of the assembly cavity. However, the installation of end caps increases the number of components used to assemble the bone conduction speaker, thereby increasing the speaker's production cost. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a speaker and bone conduction headphones with a solid magnetic structure end-mounted, which are fixedly assembled with a solid magnetic structure and a shell, with the assembly opening covered, and a voice coil structure set on a vibration connection structure so that the voice coil structure transmits audio signals and vibrates the vibration connection structure in cooperation with the solid magnetic structure.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A loudspeaker with a solid magnetic structure at one end, characterized in that it comprises: a housing, an assembly cavity provided within the housing, and an assembly opening provided at at least one end of the assembly cavity; a solid magnetic structure, a fixed structure fixedly disposed on the housing and located at the assembly opening to cover the assembly opening; a vibration connection structure, the vibration connection structure located within the assembly cavity, and the vibration connection structure and the housing being fixedly disposed; a voice coil structure, the voice coil structure located within the assembly cavity, and the voice coil structure and the vibration connection structure being fixedly disposed; the voice coil structure interacts with the solid magnetic structure by transmitting an audio signal to achieve relative vibration between the voice coil structure and the solid magnetic structure.

[0008] The present invention is further configured such that: there are two assembly openings, which are respectively located at both ends of the assembly cavity; and there are two sets of solid magnet structures, which are respectively located at different assembly openings.

[0009] The present invention is further configured such that the magnetic poles of the two sets of solid magnetic structures facing the voice coil structure are the same.

[0010] The present invention is further configured such that: the vibration connection structure includes two vibrating plates arranged at a distance, the fixing part of each vibrating plate and the outer shell are fixedly arranged, and the voice coil structure is fixed on the vibrating part of each vibrating plate respectively.

[0011] The present invention is further configured such that: the voice coil structure includes a connecting post and a voice coil portion, the voice coil portion surrounds the outer periphery of the connecting post, and the two ends of the connecting post are respectively fixedly connected to the vibrating portions of different vibrating plates.

[0012] The present invention is further configured such that the connecting column is made of a magnetically conductive material.

[0013] The present invention is further configured such that: an anti-collision pad is provided between the vibrating plate and the solid magnetic structure, one end of the anti-collision pad abuts against the solid magnetic structure and the other end abuts against the fixing part of the vibrating plate, so that an anti-collision space is formed between the solid magnetic structure and the vibrating part of the vibrating plate.

[0014] The present invention is further configured such that the anti-collision pad is arranged in a ring.

[0015] The present invention is further configured such that: the number of solid magnetic structures is two sets, and the two sets of solid magnetic structures are arranged symmetrically; and / or, the vibration connection structure includes two vibrating plates arranged at a distance, the two vibrating plates are arranged symmetrically, and the voice coil structure is fixedly connected to the vibrating part of the two vibrating plates respectively.

[0016] A bone conduction headphone, characterized in that it includes a speaker with the aforementioned solid magnetic structure at one end.

[0017] By adopting the above technical solution, 1. the solid magnetic structure seals the assembly openings at both ends of the housing, making the vibration connection structure and voice coil structure assembled within the assembly cavity more stable. 2. When an audio signal is transmitted, the voice coil structure generates a changing magnetic field. This changing magnetic field, under the influence of the fixed magnetic field of the solid magnetic structure, generates a force that drives the deformation or movement of the vibration connection structure, thereby achieving relative vibration between the solid magnetic structure and the voice coil structure to achieve vibration output. In summary, the solid magnetic structure not only assembles with the housing to seal the assembly openings but also generates a fixed magnetic field to cooperate with the voice coil structure to achieve vibration of the vibration connection structure, resulting in fewer speaker components, easier assembly, and lower production costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an assembly drawing of Embodiment 1 of the present utility model;

[0020] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0021] Figure 3 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0022] Figure 4 This is a cross-sectional view of Embodiment 2 of the present invention;

[0023] Figure 5 This is a cross-sectional view of Embodiment 3 of the present invention;

[0024] Figure 6 This is a cross-sectional view of Embodiment 4 of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Outer shell;

[0027] 11. Assembly cavity;

[0028] 111. Assembly opening;

[0029] 2. Solid magnetic structure;

[0030] 3. Vibration connection structure;

[0031] 31. Vibrating plate;

[0032] 311. Fixing part; 312. Connecting part; 313. Vibrating part;

[0033] 4. Voice coil structure;

[0034] 41. Connecting post; 42. Voice coil section;

[0035] 5. Anti-collision pads;

[0036] 51. Collision-proof space. Detailed Implementation

[0037] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0038] Example 1:

[0039] like Figures 1-3 As shown, this utility model discloses a loudspeaker with a solid magnetic structure at one end, comprising:

[0040] The outer shell 1 has an assembly cavity 11 inside, and the upper and lower ends of the assembly cavity 11 are respectively provided with assembly openings 111 that penetrate the outer shell 1.

[0041] The magnetic structure 2 consists of two pieces, which are located at the upper and lower ends of the outer shell 1 respectively. The magnetic structure 2 is fixedly installed on the outer shell 1 by means of adhesive bonding, so that each magnetic structure 2 covers the corresponding assembly opening 111.

[0042] Vibration connection structure 3 is located inside assembly cavity 11, and vibration connection structure 3 and outer shell 1 are fixedly arranged;

[0043] Voice coil structure 4 is located inside assembly cavity 11, and voice coil structure 4 and vibration connection structure 3 are fixedly arranged.

[0044] The voice coil structure 4 transmits an audio signal and interacts with the solid magnetic structure 2 to achieve relative vibration between the voice coil structure 4 and the solid magnetic structure 2.

[0045] Therefore, 1. By using a solid magnetic structure 2 to close the assembly openings 111 of the outer shell 1 at both ends, the vibration connection structure 3 and the voice coil structure 4 assembled in the assembly cavity 11 vibrate more stably. 2. When an audio signal is transmitted, the voice coil structure 4 generates a changing magnetic field. Under the action of the fixed magnetic field of the solid magnetic structure 2, the changing magnetic field generates a force that drives the deformation or movement of the vibration connection structure 3, thereby realizing the relative vibration of the solid magnetic structure 2 and the voice coil structure 4 to achieve vibration output. In summary, the solid magnetic structure 2 not only assembles with the outer shell 1 to close the assembly openings 111, but also generates a fixed magnetic field to cooperate with the voice coil structure 4 to achieve vibration output, resulting in fewer speaker components, more convenient assembly, and lower production costs.

[0046] Preferably, the magnetic poles of the two sets of solid magnetic structures 2 facing the voice coil structure 4 are the same, that is, the magnetic poles of the lower end of the upper solid magnetic structure 2 and the magnetic poles of the upper end of the lower solid magnetic structure 2 are the same. Since the magnetic poles of the upper end and the lower end of the voice coil structure 4 are opposite, the forces generated by the two solid magnetic structures 2 on the voice coil structure 4 are in the same direction, so that the voice coil structure 4 can achieve stronger vibration intensity under the action of the two solid magnetic structures 2.

[0047] Specifically, the vibration connection structure 3 includes two vibrating plates 31. One vibrating plate 31 is disposed at the upper end of the voice coil structure 4, and the other vibrating plate 31 is disposed at the lower end of the voice coil structure 4. Each vibrating plate 31 includes a fixing part 311, a connecting part 312, and a vibrating part 313. The fixing part 311 and the vibrating part 313 are both arranged in a ring shape, and the vibrating part 313 is disposed on the inner periphery of the fixing part 311. There are multiple connecting parts 312, which are arranged at circumferential intervals. The connecting parts 312 connect the inner periphery of the fixing part 311 and the outer periphery of the vibrating part 313, so that the fixing part 311 of each vibrating plate 31 and the outer shell 1 are fixedly disposed. The voice coil structure 4 is fixed on the vibrating part 313 of each vibrating plate 31.

[0048] Therefore, by placing two vibrating plates 31 at the upper and lower ends of the voice coil structure 4, the horizontal movement of the voice coil structure 4 is more stably restricted, so that the voice coil structure 4 only vibrates vertically to ensure the stability of the vibration, thereby resulting in higher sound quality.

[0049] Specifically, the voice coil structure 4 includes a connecting post 41 and a voice coil part 42. The connecting post 41 is a vertically extending cylinder. The voice coil part 42 surrounds the outer periphery of the connecting post 41 and is fixed to the connecting post 41 by means of glue or the like. The upper and lower ends of the connecting post 41 are fixedly connected to the vibrating parts 313 of different vibrating plates 31 by means of snap-fit ​​or glue bonding.

[0050] Therefore, by fixing the voice coil 42 to the connecting post 41 and fixing the connecting post 41 to the vibrating part 313 of the two diaphragms 31, the stability of the connection between the voice coil 42 and the vibrating part 313 of the two diaphragms 31 is ensured.

[0051] Specifically, the voice coil 42 is made of a spirally wound wire.

[0052] Preferably, the connecting post 41 is made of a magnetically conductive material such as iron, cobalt, nickel, or an alloy containing iron, cobalt, or nickel.

[0053] Therefore, the connecting post 41 not only serves to connect the vibrating part 313 of the two vibrating plates 31, but also conducts magnetism to the voice coil part 42 to enhance the magnetic field and increase the vibration intensity.

[0054] In addition, an anti-collision pad 5 is provided between the vibrating plate 31 and the solid magnetic structure 2. One end of the anti-collision pad 5 abuts against the solid magnetic structure 2, and the other end abuts against the fixing part 311 of the vibrating plate 31, so that an anti-collision space 51 is formed between the solid magnetic structure 2 and the vibrating part 313 of the vibrating plate 31, thereby making the vibration of the vibrating plate 31 more stable.

[0055] Specifically, the anti-collision pad 5 is annular, and the outer perimeter of the anti-collision pad 5 is adapted to the inner perimeter of the assembly cavity 11. Thus, the end of the anti-collision pad 5 facing the magnetic structure 2 is bonded to the magnetic structure 2 with glue, the end of the anti-collision pad 5 facing the vibrating plate 31 is bonded to the fixing part 311 of the vibrating plate 31 with glue, and the outer perimeter of the anti-collision pad 5 is bonded to the inner perimeter of the assembly cavity 11 with glue, so as to achieve a stable connection between the outer shell 1, the magnetic structure 2, the vibrating plate 31, and the anti-collision pad 5.

[0056] Preferably, the two sets of solid magnetic structures 2 are arranged symmetrically, and the two vibrating plates 31 are arranged symmetrically, so that the overall structure mass distribution is more uniform.

[0057] In this embodiment, the solid magnetic structure 2 uses only magnets. In other embodiments, a combination of magnets and magnetic conductive sheets may also be used.

[0058] Example 2:

[0059] like Figure 4 As shown, a solid magnetic structure end-mounted loudspeaker has the same main structure as Embodiment 1, except that a vibrating plate 31 is set only at the top.

[0060] Example 3:

[0061] like Figure 5 As shown, a loudspeaker with a solid magnetic structure at the end has the same main structure as in Embodiment 2. The difference is that the assembly cavity 11 has an assembly opening 111 at the upper end and a closed structure at the lower end, so the number of solid magnetic structures 2 is 1. The solid magnetic structure 2 is disposed at the upper end of the outer shell 1 to cover the assembly opening 111 at the upper end.

[0062] Example 4:

[0063] like Figure 6As shown, a loudspeaker with a solid magnetic structure at the end has the same main structure as in Embodiment 3, except that there are two vibrating plates 31, one of which is located at the assembly opening 111 and the other is located near the bottom of the assembly cavity 11. The fixing parts 311 of both vibrating plates 31 are fixedly arranged relative to the outer shell 1, and the vibrating parts 313 of both vibrating plates 31 are fixedly arranged relative to the connecting post 41. An anti-collision pad 5 is also provided between the fixing part 311 of the lower vibrating plate 31 and the bottom of the assembly cavity 11, and an anti-collision space 51 is also formed between the vibrating part 313 of the lower vibrating plate 31 and the bottom of the assembly cavity 11.

[0064] Example 5:

[0065] A bone conduction headphone includes a speaker with a solid magnetic structure at the end as described in any one of embodiments one to four.

[0066] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A loudspeaker with a magnetically rigid structure end placement, characterized in that, include: The outer shell (1) has an assembly cavity (11) inside, and at least one end of the assembly cavity (11) has an assembly opening (111). A solid magnetic structure (2) is fixedly disposed on the outer shell (1) and located at the assembly opening (111) to cover the assembly opening (111); Vibration connection structure (3), the vibration connection structure (3) is located in the assembly cavity (11), and the vibration connection structure (3) and the outer shell (1) are fixedly arranged; The voice coil structure (4) is located in the assembly cavity (11), and the voice coil structure (4) and the vibration connection structure (3) are fixedly arranged. The voice coil structure (4) interacts with the solid magnetic structure (2) through the transmission of audio signals, thereby achieving relative vibration between the voice coil structure (4) and the solid magnetic structure (2).

2. The magnetically permeable structure terminated loudspeaker of claim 1, wherein: The number of the assembly openings (111) is two, and the two assembly openings (111) are respectively disposed at both ends of the assembly cavity (11); The number of the solid magnetic structure (2) is two sets, and the two sets of solid magnetic structures (2) are respectively set at different assembly openings (111).

3. The magnetically permeable structure terminated loudspeaker of claim 2, wherein: The magnetic poles of the two sets of solid magnetic structures (2) facing the voice coil structure (4) are the same.

4. The magnetically permeable structure terminated loudspeaker of any of claims 1-3, wherein: The vibration connection structure (3) includes two vibrating plates (31) spaced apart. The fixing part of each vibrating plate (31) and the outer shell (1) are fixedly arranged. The voice coil structure (4) is fixed on the vibrating part of each vibrating plate (31).

5. The magnetically permeable structure terminated loudspeaker of claim 4, wherein: The voice coil structure (4) includes a connecting post (41) and a voice coil part (42). The voice coil part (42) surrounds the outer periphery of the connecting post (41). The two ends of the connecting post (41) are respectively fixedly connected to the vibrating parts of different vibrating plates (31).

6. The magnetically permeable structure terminated loudspeaker of claim 5, wherein: The connecting post (41) is made of magnetically conductive material.

7. The magnetically permeable structure terminated loudspeaker of claim 4, wherein: An anti-collision pad (5) is provided between the vibrating plate (31) and the solid magnetic structure (2). One end of the anti-collision pad (5) abuts against the solid magnetic structure (2), and the other end abuts against the fixing part of the vibrating plate (31), so that an anti-collision space (51) is formed between the solid magnetic structure (2) and the vibrating part of the vibrating plate (31).

8. The magnetically permeable structure terminated loudspeaker of claim 7, wherein: The anti-collision pad (5) is arranged in a ring.

9. The magnetically permeable structure terminated loudspeaker of claim 1, wherein: The number of the solid magnetic structures (2) is two sets, and the two sets of solid magnetic structures (2) are arranged symmetrically; and / or, The vibration connection structure (3) includes two vibrating plates (31) arranged at a distance from each other. The two vibrating plates (31) are arranged symmetrically. The voice coil structure (4) is fixedly connected to the vibrating parts of the two vibrating plates (31) respectively.

10. A bone conduction earpiece, characterized by: The loudspeaker includes the solid magnetic structure end-mounted according to any one of claims 1-9.

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