Bone conduction loudspeaker

Abstract

The utility model provides a bone conduction loudspeaker. The bone conduction loudspeaker comprises a support; the integrated assembly is arranged in the support in a sleeved mode in the height direction of the support, the integrated assembly is formed by sequentially connecting an elastic piece, a first balance weight piece, a magnet and a second balance weight piece in a gluing mode and is integrally formed in the support, and the integrated assembly is located at one end of the support in the height direction. Through the structure, the internal space of the bone conduction loudspeaker is optimized.

Description

Technical Field

[0001] This application relates to the field of speakers, and particularly to bone conduction speakers. Background Art

[0002] Normally, sound is transmitted through air conduction, and the vibration of the sound is transmitted to the eardrum in the ear. There are three ossicles in the ear, and the sound is transmitted to the cochlea through the ossicles by the vibration of the eardrum. The cochlea is filled with lymph fluid, and the vibration of the lymph fluid reaches the auditory nerve during the process of being converted into electrical signals. In this way, the human brain can recognize sound. The so-called bone conduction omits the process that the vibration has to pass through the eardrum and ossicles in the mechanism of sound recognition, but directly transmits the vibration of the sound to the cochlea through the skull. Therefore, even for those with abnormal hearing loss in the eardrum and ossicles, when the cochlea or auditory nerve is still normal, they can still clearly hear sounds by using the bone conduction method.

[0003] In the prior art, such as a bone conduction speaker proposed in Chinese Patent CN116389994A, in this technical solution, an integrated structure is formed by injection molding of a bracket, a weight, a U-shaped iron, and a first elastic piece, so as to improve the quality of the speaker and increase the service life of the speaker.

[0004] However, due to the relatively thick overall design of the speaker, and in the case where it is necessary to increase the thickness of the voice coil and the magnet to improve the performance of the bone conduction speaker in order to save costs, there is no space inside the speaker for this technical means. Therefore, a bone conduction speaker is needed. Utility Model Content

[0005] In view of this, it is necessary to provide a bone conduction speaker with an optimized internal space to solve the above problems.

[0006] Embodiments of this application provide a bone conduction speaker, including:

[0007] A bracket;

[0008] An integrally formed component, sleeved in the bracket along the height direction of the bracket. The integrally formed component is glued and connected by an elastic piece, a first weight, a magnet, and a second weight and integrally formed in the bracket. The integrally formed component is located at one end of the bracket in the height direction.

[0009] In at least one embodiment of this application, the bone conduction speaker further includes:

[0010] A voice coil, sleeved in the bracket along the height direction of the bracket. The voice coil is located at the other end of the bracket in the height direction, and the integrally formed component is sleeved in the voice coil.

[0011] In at least one embodiment of the present application, the shrapnel is located at one end away from the voice coil, and the second counterweight and the magnet are located inside the voice coil.

[0012] In at least one embodiment of the present application, when observing along the height direction of the bracket, the centers of the bracket, the voice coil, and the integrally formed component overlap.

[0013] In at least one embodiment of the present application, the shrapnel is made of a stainless steel structure.

[0014] In at least one embodiment of the present application, the bone conduction speaker further includes:

[0015] A face cover, which is covered on one bottom surface of the bracket and is attached to the bottom surface of the voice coil facing away from the integrally formed component.

[0016] In at least one embodiment of the present application, the bone conduction speaker further includes:

[0017] A front cover, which is covered on the other bottom surface of the bracket and is connected to one end of the shrapnel facing away from the second counterweight.

[0018] In at least one embodiment of the present application, the front cover includes:

[0019] A covering portion, which is arranged along the bottom surface direction of the bracket, is attached to the other bottom surface of the bracket, and covers the other bottom surface of the bracket;

[0020] A fitting portion, which is arranged along the height direction of the bracket and is perpendicularly connected to the covering portion. The fitting portion is attached and connected to the inner circular surface of the bracket, and the shrapnel abuts against the bracket along the height direction of the bracket, and the fitting portion abuts against one end of the shrapnel facing away from the bracket.

[0021] In at least one embodiment of the present application, the bracket includes:

[0022] A first card slot portion, which is opened at one end in the height direction of the bracket and is attached and connected to the face cover along the height direction of the bracket.

[0023] In at least one embodiment of the present application, the bracket further includes:

[0024] A second card slot portion, which is opened at the other end in the height direction of the bracket, is attached and connected to the front cover along the height direction of the bracket and relative to the direction of the face cover, and abuts against the shrapnel along the height direction of the bracket.

[0025] The bone conduction speaker provided above removes the U-shaped iron with a relatively large proportion of the integrated structure and replaces it with two counterweights clamping the magnet, realizing a smaller and thinner bone conduction speaker. Optimizing the internal space of the bone conduction speaker can also improve the performance of the bone conduction speaker by setting a thicker number of voice coil layers and a larger magnet in the extra space. Brief Description of the Drawings

[0026] Figure 1 A perspective view of the bone conduction speaker described in this application;

[0027] Figure 2 An exploded view of the bone conduction speaker described in this application;

[0028] Figure 3 A sectional view of the bone conduction speaker described in this application;

[0029] Figure 4 A perspective view of the front cover described in this application;

[0030] Figure 5 A perspective view of the bracket described in this application;

[0031] Description of the Main Element Symbols

[0032] 100, bone conduction speaker; 10, bracket; 20, integrated component; 21, shrapnel; 22, first counterweight; 23, magnet; 24, second counterweight; 30, voice coil; 40, face cover; 50, front cover; 51, covering part; 52, fitting part; 251, first card slot part; 252, second card slot part. Detailed Description of the Invention

[0033] Next, the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0034] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used herein are only for the purpose of illustration.

[0035] Please refer to Figures 1 - 5, embodiments of the present application provide a bone conduction speaker 100, including a bracket 10 and an integrally formed component 20. The integrally formed component 20 is sleeved in the bracket 10 along the height direction of the bracket 10. The integrally formed component 20 is integrally formed in the bracket 10 by gluing a shrapnel 21, a first weight 22, a magnet 23, and a second weight 24. The integrally formed component 20 is located at one end of the bracket 10 in the height direction.

[0036] Specifically, the integrally formed component 20 is bonded by glue. The glue bonding process includes: sequentially bonding the first weight 22, the magnet 23, and the second weight 24 with glue to form a magnetic circuit. Among them, the magnet 23 is responsible for generating a stable magnetic field, while the first weight 22 and the second weight 24 play a role in guiding magnetism and enhancing the magnetic field. After the magnet 23 is magnetized, the shrapnel 21 is glued to one end of the first weight 22 facing away from the magnet 23. Among them, when the shrapnel 21 is set as a magnetic stainless steel structure, it not only plays a role in transmitting vibration in the bone conduction speaker 100, but also further plays a role in guiding magnetism, optimizing the overall magnetic circuit performance. Finally, the integrally formed component 20 is glued into the bracket 10.

[0037] Further, in the present application, compared with the prior art, the integrally formed component 20 reduces the U-shaped iron, and uses thinner first weight 22 and second weight 24 to clamp the magnet 23, so as to optimize the magnetic field distribution, reduce harmonic distortion, and improve the performance of the bone conduction speaker 100.

[0038] Through the release of space, a larger magnet 23 and a thicker voice coil 30 can be selected, thereby further improving the sound quality and transmission effect of the bone conduction speaker 100. Specifically, increasing the size of the magnet 23 can increase the magnetic field strength, while increasing the thickness of the voice coil 30 helps to improve the electromagnetic conversion efficiency, enabling the bone conduction speaker 100 to provide a clearer and stronger sound output during operation. It also means that the volume of the installation space inside the bone conduction speaker 100 can be reduced.

[0039] In a specific embodiment, a face cover 40 and a front cover 50 are both covered on the two bottom surfaces of the bracket 10, and a closed installation space is formed inside. Also, because the front cover 50 is provided with a through hole for external power connection of the bone conduction speaker 100.

[0040] The spring sheet 21 abuts against the bracket 10 (i.e., the second slot 252) along the height direction of the bracket 10, and the fitting portion 52 abuts against the end of the spring sheet 21 away from the bracket 10 (i.e., the second slot 252). The front cover 50 also ensures the fixed position of the spring sheet 21 during operation, thereby ensuring the effectiveness of vibration transmission. The spring sheet 21 is a key component in the bone conduction speaker 100 that converts electrical signals into mechanical vibrations. The abutment between the front cover 50 and the spring sheet 21 ensures the accuracy and effectiveness of vibration, thereby improving the clarity and quality of audio transmission.

[0041] The first slot 251 is opened in the vertical direction, and the cover 40 is located in the first slot 251. The cover 40 fits the first slot 251. The first slot 251 is a groove opened at one end of the bracket 10 in the height direction. The cover can be firmly embedded in the bracket 10 to form a firm connection, ensuring the fixity of the cover 40 in the vertical direction. The embedding does not increase the external volume. This makes the bone conduction speaker 100 more miniaturized.

[0042] The cover portion 51 is used to seal the internal structure of the bracket 10, and the fitting portion 52 is used to connect the bracket 10. The connection between the cover portion 51 and the fitting portion 52 and the bracket 10 forms a stable frame to ensure the rigidity and stability of the entire structure. The bracket 10 serves as the skeleton of the entire bone conduction speaker 100, carrying all key components such as the front cover 50, the voice coil 30, and the one-piece molded component 20. The front cover 50 not only provides physical protection but also enhances the integrity of the structure by closely fitting with the bracket 10.

[0043] The tight connection between the second slot 252 and the front cover 50 ensures that the bone conduction speaker 100 will not loosen or shift due to external force or vibration during operation. This structural design is particularly important under extreme use conditions (such as strenuous exercise, long-term use, etc.), and can increase the service life of the bone conduction speaker 100.

[0044] In this embodiment, the spring 21, the magnet 23, and the voice coil 30 all adopt technical solutions in the prior art, and thus will not be described in detail herein.

[0045] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. Bone conduction speaker, characterized in that, include: Bracket; An integrally formed component is sleeved in the bracket along the height direction of the bracket. The integrally formed component is formed integrally in the bracket by gluing together a spring sheet, a first counterweight, a magnet and a second counterweight. The integrally formed component is located at one end of the bracket in the height direction.

2. The bone conduction speaker according to claim 1, characterized in that: The bone conduction speaker also includes: The voice coil is sleeved in the bracket along the height direction of the bracket, the voice coil is located at the other end of the bracket in the height direction, and the one-piece molded component is sleeved in the voice coil.

3. The bone conduction speaker according to claim 2, characterized in that: The spring sheet is located at one end away from the voice coil, and the second weight component and the magnet are located inside the voice coil.

4. The bone conduction speaker according to claim 2, characterized in that: When viewed along the height direction of the bracket, the bracket, the voice coil and the integrated component overlap in the center.

5. The bone conduction speaker according to claim 1, characterized in that: The spring sheet is configured as a stainless steel structure.

6. The bone conduction speaker according to claim 2, characterized in that: The bone conduction speaker also includes: The surface cover is arranged on a bottom surface of the bracket and is in contact with the bottom surface of the voice coil which is away from the one-piece molding component.

7. The bone conduction speaker according to claim 6, characterized in that: The bone conduction speaker also includes: The front cover is arranged on the other bottom surface of the bracket and is connected to the end of the spring sheet away from the second counterweight.

8. The bone conduction speaker according to claim 7, characterized in that: The front cover comprises: A covering portion is arranged along the bottom surface direction of the bracket, is in contact with the other bottom surface of the bracket, and covers the other bottom surface of the bracket; The fitting portion is arranged along the height direction of the bracket and is vertically connected to the covering portion. The fitting portion is fitted and connected to the inner circular surface of the bracket, and the spring sheet abuts against the bracket along the height direction of the bracket, and the fitting portion abuts against one end of the spring sheet away from the bracket.

9. The bone conduction speaker according to claim 6, characterized in that: The support comprises: The first slot portion is provided at one end of the bracket in the height direction and is closely connected with the surface cover along the height direction of the bracket.

10. The bone conduction speaker according to claim 7, characterized in that: The support also includes: The second slot is provided at the other end of the bracket in the height direction, and is fitted and connected with the front cover in the height direction of the bracket and relative to the direction of the surface cover, and is in contact with the elastic sheet in the height direction of the bracket.

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