Loudspeaker structure based on vibration sound transmission

Abstract

The utility model provides a loudspeaker structure based on vibration sound transmission, which relates to the technical field of electroacoustic conversion devices, and comprises an upper cover assembly, a voice coil assembly, a magnetic circuit assembly and a lower cover assembly, and the surface of the upper cover assembly is provided with a heat dissipation hole I, a positioning hole and a fixing hole. According to the utility model, the magnetic circuit assembly and the voice coil assembly which are modularly designed are matched, an innovative structure that the voice coil is fixed and the magnetic circuit is movable is adopted, an electric signal is directly converted into mechanical vibration to be conducted to a human body, effective conversion from a sound signal to somatosensory vibration is realized, and the limitation that a traditional loudspeaker can only transmit sound waves through air is overcome; the heat dissipation holes and the ventilation grooves arranged in the upper and lower cover assemblies form convection heat dissipation channels, the heat conduction performance of the metal heat dissipation fins is matched, the heat dissipation problem during working of the vibration horn is effectively solved, long-time stable operation of equipment is guaranteed, meanwhile, the elastic supporting structure of the elastic pieces is utilized, vibration loss is reduced, and vibration conduction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic conversion device technology, and in particular to a speaker structure based on vibration sound transmission. Background Technology

[0002] Electroacoustic converters, as key components for converting electrical signals into sound signals, are widely used in modern life and industrial production, ranging from everyday speakers and headphones to large-scale sound reinforcement systems.

[0003] All of these rely on the support of electroacoustic conversion devices. In existing technologies, traditional loudspeakers, as a common electroacoustic conversion device, work primarily based on electromagnetic induction. They typically consist of a diaphragm, a magnetic circuit system, a coil, and a support. By loading an electrical signal onto the coil, the coil moves under the force of the magnetic field generated by the magnetic circuit system, thereby causing the diaphragm to vibrate and push the air to form sound waves. This achieves the conversion of electrical signals into sound signals, which are then transmitted through the air to the eardrum, providing the user with a listening experience.

[0004] In existing technologies, this traditional speaker structure has many limitations. On the one hand, the propagation medium relies solely on air, providing only auditory perception without tactile feedback. Traditional speakers typically consist of a diaphragm, magnetic circuit system, coil, and support, converting electrical signals into audible electroacoustic output that propagates through the air to the eardrum. This presents several problems: the propagation medium requires airflow, resulting in only auditory perception without tactile feedback; installation scenarios are severely limited, as traditional speakers often require a dedicated speaker enclosure, relying on internal cavities to generate resonance and enhance sound quality. This not only increases the size and cost of the equipment but also restricts the flexibility of its installation location. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing technologies require sound transmission through air, providing only auditory sensation without tactile sensation, and necessitate a speaker enclosure and a certain cavity to generate resonance. Therefore, this invention proposes a speaker structure based on vibration transmission.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a speaker structure based on vibration transmission, comprising an upper cover assembly, a voice coil assembly, a magnetic circuit assembly, and a lower cover assembly, wherein the surface of the upper cover assembly is provided with a heat dissipation hole, a positioning hole, and a fixing hole;

[0007] The voice coil assembly includes a coil support and a coil, and the coil support is fixed at the center of the upper cover assembly;

[0008] The magnetic circuit assembly includes a ring magnet, a magnetic guide plate, a spring sheet, and a positioning interface. The side of the spring sheet is fixedly equipped with a hanging lug, and a through groove is formed on the surface of the spring sheet. The surface of the ring magnet is formed with an annular groove, and the magnetic guide plate is located inside the annular groove.

[0009] The lower cover assembly includes metal heat sinks and ventilation slots, and a U-shaped opening is formed on the surface of the lower cover assembly.

[0010] The U-shaped groove has a through-hole for mounting, the inner side of the lower cover assembly has a second heat dissipation hole, and the surface of the lower cover assembly has a hanging ear groove.

[0011] Preferably, the positioning hole and fixing hole pass through the lug and extend into the interior of the lower cover assembly.

[0012] Preferably, the metal heat sinks are distributed in a circumferential shape on the side of the lower cover assembly.

[0013] Preferably, the ear loops slide in conjunction with the ear loop grooves, and the number of ear loops is three sets.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, through the modular design of the magnetic circuit assembly and the voice coil assembly, an innovative structure with a fixed voice coil and a movable magnetic circuit is adopted, which directly converts the electrical signal into mechanical vibration and transmits it to the human body, realizing the effective conversion of sound signal into tactile vibration. This overcomes the limitation of traditional speakers that can only transmit sound waves through the air. Furthermore, the heat dissipation holes and ventilation slots set in the upper and lower cover assemblies form a convection heat dissipation channel. Combined with the thermal conductivity of the metal heat sink, this effectively solves the heat dissipation problem when the vibrating speaker is working, ensuring the stable operation of the equipment for a long time. At the same time, the elastic support structure of the spring sheet is used to reduce vibration loss and improve vibration transmission efficiency.

[0015] 2. In this utility model, the spring plate of the magnetic circuit component is set with a hanging ear that slides with the hanging ear groove of the lower cover component, and there are three sets of hanging ears. Combined with the positioning hole and fixing hole of the upper cover component, the hanging ears extend into the interior of the lower cover, so as to realize the precise positioning and rapid assembly of the magnetic circuit component and the upper and lower covers. Attached Figure Description

[0016] Figure 1 is a partial structural diagram of the upper cover assembly and voice coil assembly of the speaker structure based on vibration sound transmission proposed in this utility model.

[0017] Figure 2 is a partial structural diagram of the magnetic circuit assembly and the lower cover assembly of the speaker structure based on vibration sound transmission proposed in this utility model.

[0018] Figure 3 is a three-dimensional structural diagram of a speaker structure based on vibration sound transmission proposed in this utility model.

[0019] Legend: 1. Top cover assembly; 102. Heat dissipation hole 1; 103. Positioning hole; 104. Fixing hole; 2. Voice coil assembly; 201. Coil bracket; 202. Coil; 3. Magnetic circuit assembly; 301. Ring magnet; 302. Magnetic guide plate; 303. Spring; 304. Positioning interface; 305. Hanger; 306. Through slot; 307. Ring slot;

[0020] 4. Lower cover assembly; 401. Metal heat sink; 402. Ventilation slot; 403. U-shaped groove; 404. Mounting hole;

[0021] 405. Heat dissipation hole 2; 406. Ear slot. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figures 1-3 As shown, this utility model provides a technical solution: a speaker structure based on vibration transmission, including an upper cover assembly 1, a voice coil assembly 2, a magnetic circuit assembly 3, and a lower cover assembly 4. The surface of the upper cover assembly 1 is provided with a heat dissipation hole 102, a positioning hole 103, and a fixing hole 104. The voice coil assembly 2 includes a coil.

[0025] The bracket 201 and coil 202 are fixed at the center of the upper cover assembly 1. The magnetic circuit assembly 3 includes an annular magnet 301, a magnetic guide plate 302, a spring piece 303, and a positioning interface 304. A hanging ear 305 is fixedly installed on the side of the spring piece 303. A through groove 306 is formed on the surface of the spring piece 303. An annular groove 307 is formed on the surface of the annular magnet 301. The magnetic guide plate 302 is located inside the annular groove 307. The lower cover assembly 4 includes a metal heat sink 401 and a ventilation slot 402. A U-shaped groove 403 is formed on the surface of the lower cover assembly 4. The groove surface of 03 has a through-hole 404. The inner side of the lower cover assembly 4 has a second heat dissipation hole 405. The surface of the lower cover assembly 4 has a hanging ear groove 406. The positioning hole 103 and the fixing hole 104 pass through the hanging ear 305 and extend into the interior of the lower cover assembly 4. The first heat dissipation hole 102 and the second heat dissipation hole 405 are distributed vertically and vertically. The metal heat sink 401 is fixedly connected to the lower cover assembly 4 with thermally conductive adhesive. The metal heat sink 401 is distributed in a circumferential shape on the side of the lower cover assembly 4. The hanging ear 305 slides in the hanging ear groove 406. There are three sets of hanging ears 305.

[0026] In this embodiment, the modularly designed magnetic circuit assembly 3 and voice coil assembly 2 work together, employing an innovative structure with a fixed voice coil and a movable magnetic circuit. This directly converts electrical signals into mechanical vibrations that are transmitted to the human body, effectively converting sound signals into tactile vibrations. This overcomes the limitation of traditional speakers that can only transmit sound waves through the air. Furthermore, the heat dissipation holes and ventilation slots 402 in the upper and lower cover assemblies 4 form a convection heat dissipation channel. Combined with the thermal conductivity of the metal heat sink 401, this effectively solves the heat dissipation problem during the operation of the vibrating speaker, ensuring stable operation of the device for a long time. At the same time, the elastic support structure of the spring piece 303 reduces vibration loss and improves vibration transmission efficiency. The spring piece 303 of the magnetic circuit assembly 3 is equipped with a hook 305 that slides into the hook groove 406 of the lower cover assembly 4. There are three sets of hooks 305. Combined with the positioning hole 103 and fixing hole 104 of the upper cover assembly 1, which extend through the hooks 305 into the interior of the lower cover, this achieves precise positioning and rapid assembly of the magnetic circuit assembly 3 and the upper and lower covers.

[0027] The working principle of this embodiment is as follows: During use, the spring piece 303 plays an important role in the vibration of the magnetic circuit assembly 3. The spring piece 303 forms an elastic support structure with the U-shaped groove 403 of the lower cover assembly 4 through the through groove 306. On the one hand, it allows the magnetic circuit assembly 3 to vibrate freely, and on the other hand, the elastic reset function of the spring piece 303 can maintain the stability of the vibration of the magnetic circuit assembly 3 and reduce vibration loss. The vibration energy of the magnetic circuit assembly 3 is transmitted through the lower cover assembly 4. Since the metal heat sink 401 is distributed in a circumferential shape on the side of the lower cover assembly 4, it can effectively transmit the vibration to the surface of the object in contact with it, such as an electric sound therapy mattress or sofa.

[0028] In order to convert sound signals into tactile vibrations, heat dissipation is also a key aspect of the entire operation. The heat dissipation holes 102 on the surface of the upper cover assembly 1 and the heat dissipation holes 405 on the inner side of the lower cover assembly 4 correspond to each other and together with the ventilation slot 402, they form a convection heat dissipation channel. When the vibrating horn generates heat during operation, hot air will flow through these channels. At the same time, the good thermal conductivity of the metal heat sink 401 can quickly dissipate the heat, effectively solving the heat dissipation problem when the vibrating horn is working and ensuring that the equipment can operate stably for a long time. When the vibrating horn needs maintenance or repair, the operator only needs to unscrew the screws passing through the positioning hole 103 and the fixing hole 104, and then easily remove the magnetic circuit assembly 3 from the lower cover assembly 4 by sliding the ear 305 with the ear slot 406, so as to achieve quick disassembly and maintenance.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A loudspeaker structure based on vibration sound transmission, comprising an upper cover assembly (1), a voice coil assembly (2), a magnetic circuit assembly (3) and a lower cover assembly (4), characterized in that: The surface of the upper cover assembly (1) is provided with a heat dissipation hole one (102), a positioning hole (103) and a fixing hole (104); The voice coil assembly (2) comprises a coil support (201) and a coil (202), the coil support (201) is fixed at the center position of the upper cover assembly (1); the magnetic circuit assembly (3) comprises a ring magnet (301), a magnetic conducting plate (302), an elastic sheet (303) And a positioning interface (304), the side surface of the elastic sheet (303) is fixedly provided with an ear hook (305), the surface of the elastic sheet (303) is provided with a through slot (306), the surface of the ring magnet (301) is provided with a ring slot (307), and the magnetic conducting plate (302) is located inside the ring slot (307); The lower cover assembly (4) comprises a metal heat dissipation fin (401) and a ventilation groove (402), the surface of the lower cover assembly (4) is provided with a U-shaped groove (403), the groove surface of the U-shaped groove (403) is provided with an installation hole (404), the inner side of the lower cover assembly (4) is provided with a heat dissipation hole two (405), and the surface of the lower cover assembly (4) is provided with an ear hook groove (406).

2. The vibration sound pressure based horn structure of claim 1, wherein: The positioning hole (103) and the fixing hole (104) penetrate through the ear hook (305) and extend to the inside of the lower cover assembly (4). 3.The vibration sound transmission based horn structure of claim 1, wherein: The heat dissipation hole one (102) and the heat dissipation hole two (405) are distributed in a top-down corresponding manner, and the metal heat dissipation fin (401) and the lower cover assembly (4) are fixedly connected by using heat-conducting glue.

4. The vibration sound pressure based horn structure of claim 1, wherein: The metal heat dissipation fin (401) is circumferentially distributed on the side surface of the lower cover assembly (4). 5.The vibration sound transmission based horn structure of claim 1, wherein: The ear hook (305) and the ear hook groove (406) are in sliding fit, and the number of the ear hook (305) is three groups.

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