Dual diaphragm vibrating loudspeaker

Abstract

This utility model relates to the field of loudspeaker technology, and more particularly to a coaxial dual-magnet dual-moving-coil loudspeaker, comprising a press-fit nut post, an upper spring, an upper connecting block, a PCB board, a diaphragm, a lower connecting block, a frame, a voice coil, a washer, a magnet, a U-cup, and a lower spring. The press-fit nut post passes sequentially through the upper spring, the upper connecting block, the diaphragm, the lower connecting block, the frame, the voice coil, the washer, the magnet, the U-cup, and the lower spring, and is connected by press-fitting. This utility model provides a dual-spring vibrating loudspeaker, in which the upper and lower springs serve as vibrating conductors. When the voice coil undergoes piston-like motion in a magnetic field, it drives the two springs to vibrate simultaneously through gas, thereby generating a balanced vibration, making the sound field coverage more uniform, and the lowest resonant frequency is lower than that of similar loudspeakers, making the low frequencies sound full and the high frequencies extended. While ensuring the sound quality of the loudspeaker, it also improves the sensitivity of the loudspeaker, meeting consumer requirements.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a double-spring vibrating loudspeaker. Background Technology

[0002] As people's living standards improve and their demand for leisure and entertainment increases, the production of media such as laptops, desktop computers, tablets, and mobile phones is booming. With the development of the e-sports market, young people are demanding higher quality headphones and speakers. Currently, most products on the market use single-spring vibrating sheets. While this vibration system does produce vibration, it is prone to modal resonance, resulting in high distortion and uneven vibration. Furthermore, even when technical specifications meet standards, the product's dimensions are subject to significant constraints. This creates considerable difficulties in the production process, increasing costs and impacting usability.

[0003] In view of this, the inventors hope to design a dual-spring vibrating loudspeaker that can improve the speaker's sensitivity while ensuring the speaker's sound quality, thereby meeting consumer requirements. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of insufficient bass, unbalanced vibration, and harsh sound in the existing technology, and to provide a dual-spring vibrating loudspeaker.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: A dual-spring vibrating loudspeaker includes a press-fit nut post, an upper spring, an upper connecting block, a PCB board, a drum paper, a lower connecting block, a frame, a voice coil, a washer, a magnet, a U-cup, and a lower spring. The press-fit nut post passes through the upper spring, the upper connecting block, the drum paper, the lower connecting block, the frame, the voice coil, the washer, the magnet, the U-cup, and the lower spring in sequence, and is connected by press-fitting. The basin frame consists of a mounting base and a mounting seat on it. The mounting base has multiple mounting through holes along the circumference. The mounting seat has a protrusion, and the upper side of the protrusion has a PCB board mounting groove for easy installation of the PCB board. The inner cavity of the mounting seat is divided into an upper chamber and a lower chamber by an annular partition. The outer ends of the upper chamber and the lower chamber are respectively provided with spring mounting grooves for easy installation of upper springs and lower springs. The upper spring, upper connecting block, drum paper, and lower connecting block are located in the upper chamber of the basket frame, while the voice coil, washer, magnet, U-cup, and lower spring are located in the lower chamber of the basket frame.

[0006] Furthermore, in the aforementioned dual-spring vibrating loudspeaker, the lower spring is fixed to the magnetic circuit of the U-cup, the upper spring is fixed to the diaphragm, and the diaphragm and voice coil generate airflow when they undergo piston-like motion in the magnetic field. When the U-cup and diaphragm vibrate, they simultaneously drive the lower and upper springs to vibrate, thereby generating a vibration sensation.

[0007] Furthermore, in the aforementioned dual-spring vibrating loudspeaker, the press-fit nut column includes a nut column body and a limiting end plate located at its end. The nut column body has a threaded hole inside, and the axial length of the nut column body matches the axial thickness of the frame.

[0008] Furthermore, in the aforementioned dual-spring vibrating loudspeaker, the upper spring includes an upper central spring, an upper inner ring, an upper outer ring, an upper inner yoke, and an upper outer yoke. An upper riveting through hole is provided at the center of the upper central spring. Several upper inner yokes are connected between the upper inner ring and the upper central spring, and several upper outer yokes are connected between the upper outer ring and the upper inner ring. The positions of the upper inner yoke and the upper outer yoke are staggered.

[0009] Furthermore, in the aforementioned dual-spring vibrating loudspeaker, the lower spring includes a lower central spring, a lower inner ring, a lower outer ring, a lower inner yoke, and a lower outer yoke. A lower riveting through hole is provided at the center of the lower central spring. Several lower inner yokes are connected between the lower inner ring and the lower central spring, and several lower outer yokes are connected between the lower outer ring and the lower inner ring. The positions of the lower inner yoke and the lower outer yoke are staggered.

[0010] Furthermore, in the aforementioned dual-spring vibrating loudspeaker, the material of the press-fit nut post is copper.

[0011] Furthermore, in the aforementioned dual-spring vibrating loudspeaker, the upper and lower springs are made of stainless steel that has undergone cold deformation treatment.

[0012] Furthermore, in the aforementioned dual-spring vibrating loudspeaker, the drum paper is made of PU material.

[0013] The beneficial effects of this utility model are: 1. This utility model provides a dual-spring vibrating loudspeaker, in which the upper and lower springs serve as vibrating conductors. When the voice coil moves like a piston in a magnetic field, it drives the two springs to vibrate simultaneously through gas, thereby generating a balanced vibration, making the sound field coverage more uniform, and the lowest resonance frequency is lower than that of similar loudspeakers, making the low frequencies feel full and the high frequencies have strong extension. While ensuring the sound quality of the loudspeaker, the sensitivity of the loudspeaker is also improved to meet the requirements of consumers.

[0014] 2. This utility model speaker solves the problems of insufficient bass, unbalanced vibration, and harsh sound in existing speakers. This utility model speaker has the characteristics of high resolution, high extension, wide sound field, high sensitivity, and balanced vibration. While solving technical problems, it has low production cost, simple and easy assembly, high production efficiency, high finished product qualification rate, and excellent acoustic performance, and has broad application prospects in headphones.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0017] Figure 1 This is an exploded view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the basin frame in this utility model; Figure 3 This is a schematic diagram of the structure of the pressure rivet nut column in this utility model; Figure 4 This is a schematic diagram of the upper spring sheet in this utility model; Figure 5 This is a schematic diagram of the structure of the paper drum in this utility model; Figure 6 This is a schematic diagram of the structure of the lower spring sheet in this utility model; In the attached diagram, the components represented by each number are as follows: 1-Pressure-fit nut post, 101-Nut post body, 102-Limiting end plate, 2-Upper spring, 201-Upper center spring, 202-Upper inner ring body, 203-Upper outer ring body, 205-Upper inner yoke, 206-Upper outer yoke, 3-Upper connecting block, 4-PCB board, 5-Drum paper, 6-Lower connecting block, 7-Frame, 701-Mounting base block, 702-Mounting seat, 703-Mounting through hole, 704-Protrusion, 705-PCB board mounting slot, 706-Annular partition, 707-Spring mounting slot, 8-Voice coil, 9-Washer, 10-Magnet, 11-U-cup, 12-Lower spring, 121-Lower center spring, 122-Lower inner ring body, 123-Lower outer ring body, 124-Lower riveting through hole, 125-Lower inner yoke, 126-Lower outer yoke. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-6 As shown, this embodiment provides a dual-spring vibrating loudspeaker, which includes a press-fit nut post 1, an upper spring 2, an upper connecting block 3, a PCB board 4, a drum paper 5, a lower connecting block 6, a frame 7, a voice coil 8, a washer 9, a magnet 10, a U-cup 11, and a lower spring 12. The press-fit nut post 1 passes through the upper spring 2, the upper connecting block 3, the drum paper 5, the lower connecting block 6, the frame 7, the voice coil 8, the washer 9, the magnet 10, the U-cup 11, and the lower spring 12 in sequence, and is connected by press-fitting. The frame 7 consists of a mounting base 701 and a mounting seat 702 mounted thereon. The mounting base 701 has multiple mounting through holes 703 circumferentially. The mounting seat 702 has a protrusion 704, and the upper side of the protrusion 704 has a PCB board mounting groove 705 for easy mounting of the PCB board 4. The inner cavity of the mounting seat 702 is divided into an upper chamber and a lower chamber by an annular partition 706. The outer ends of the upper chamber and the lower chamber are respectively provided with spring mounting grooves 707 for easy mounting of the upper spring 2 and the lower spring 12. The upper spring 2, the upper connecting block 3, the drum 5 and the lower connecting block 6 are located in the upper chamber of the frame 7, and the voice coil 8, the washer 9, the magnet 10, the U-cup 11 and the lower spring 12 are located in the lower chamber of the frame 7.

[0020] In this embodiment, the lower spring 12 and the U-cup 11 are magnetically fixed, and the upper spring 2 and the diaphragm 5 are fixed. When the diaphragm 5 and the voice coil 8 move in a piston-like motion in the magnetic field, they generate airflow. When the U-cup 11 and the diaphragm 5 vibrate, they simultaneously drive the lower spring 12 and the upper spring 2 to vibrate, thereby generating a vibration sensation. The lower spring 12 and the upper spring 2 vibrate simultaneously, resulting in a balanced vibration sensation that will not cause damage to the ears.

[0021] In this embodiment, the press-fit nut post 1 includes a nut post body 101 and a limiting end plate 102 disposed at its end. The nut post body 101 has a threaded hole inside, and the axial length of the nut post body 101 matches the axial thickness of the frame 7. The press-fit nut post 1 is made of copper.

[0022] In this embodiment, the upper spring piece 2 includes an upper central spring piece 201, an upper inner ring body 202, an upper outer ring body 203, an upper inner yoke 205, and an upper outer yoke 206. An upper riveting through hole 204 is provided at the center of the upper central spring piece 201. A plurality of upper inner yokes 205 are connected between the upper inner ring body 202 and the upper central spring piece 201. A plurality of upper outer yokes 206 are connected between the upper outer ring body 203 and the upper inner ring body 202. The positions of the upper inner yokes 205 and the upper outer yokes 206 are staggered.

[0023] In this embodiment, the lower spring piece 12 includes a lower central spring piece 121, a lower inner ring body 122, a lower outer ring body 123, a lower inner yoke 125, and a lower outer yoke 126. A lower riveting through hole 124 is provided at the center of the lower central spring piece 121. A plurality of lower inner yokes 125 are connected between the lower inner ring body 122 and the lower central spring piece 121. A plurality of lower outer yokes 126 are connected between the lower outer ring body 123 and the lower inner ring body 122. The positions of the lower inner yokes 125 and the lower outer yokes 126 are staggered.

[0024] In this embodiment, the upper spring 2 and the lower spring 12 are made of 301 stainless steel that has undergone cold deformation treatment. 301 stainless steel is the easiest steel to strengthen through cold deformation. Cold deformation processing can increase the strength and hardness of the steel while retaining sufficient plasticity and toughness. In addition, this steel has good rust resistance under atmospheric conditions. 301 stainless steel is mainly used in a cold-worked state for equipment components that bear high loads and where it is desirable to reduce equipment weight and prevent rust. When subjected to external impact, the springs easily undergo work hardening, absorbing more impact energy and providing more reliable stability for the product.

[0025] In this embodiment, the diaphragm 5 is made of PU material. The high resilience and flexibility of PU material allow the diaphragm to respond quickly to audio signals, reducing distortion, making it particularly suitable for dynamic transient response and improving sound clarity and detail reproduction. The internal damping of PU material effectively absorbs excess vibration, reducing resonance and coloration, avoiding a muffled sound, and especially improving the smoothness of mid-low frequency transitions. The low density of PU material reduces diaphragm weight, increases sensitivity, and lowers driving difficulty, allowing for high-fidelity performance even with a small dynamic driver unit, while saving headphone power consumption. The diaphragm 5 features a dual-pressure coil design, greatly enhancing the bass effect and maximizing its bass performance, while also providing a vibration effect for a more comfortable listening experience, making it more appealing to gaming enthusiasts.

[0026] In this embodiment, the upper and lower chambers of the frame 7 are joined using a riveting process. The riveting assembly involves fixing all materials through a hole on one side of the press-fit nut post 1, and then forming a head on the other side, thereby achieving the connection of the workpieces. The riveting process has the advantages of reliable connection and high load-bearing capacity.

[0027] The dual-spring vibrating loudspeaker provided in this embodiment uses upper and lower springs as vibrating conductors. When the voice coil undergoes piston-like motion in a magnetic field, it drives the two springs to vibrate simultaneously through gas, thereby generating a balanced vibration. This results in a more uniform sound field coverage and a lower minimum resonant frequency compared to similar loudspeakers, making the low frequencies feel full and the high frequencies have strong extension. While ensuring the sound quality of the loudspeaker, it also improves the speaker's sensitivity to meet consumer requirements. This loudspeaker solves the problems of insufficient bass, unbalanced vibration, and harsh sound in existing loudspeakers. This loudspeaker features high resolution, high extension, wide sound field, high sensitivity, and balanced vibration. While solving technical problems, it also boasts low production costs, simple assembly and operation, high production efficiency, high finished product qualification rate, and excellent acoustic performance, making it a promising candidate for use in headphones.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A double diaphragm vibration loudspeaker, characterized by, It includes a press-fit nut post, an upper spring plate, an upper connecting block, a PCB board, a drum paper, a lower connecting block, a frame, a voice coil, a washer, a magnet, a U-cup, and a lower spring plate. The press-fit nut post passes through the upper spring plate, the upper connecting block, the drum paper, the lower connecting block, the frame, the voice coil, the washer, the magnet, the U-cup, and the lower spring plate in sequence, and is connected by press-fitting. The basin frame consists of a mounting base and a mounting seat on it. The mounting base has multiple mounting through holes along the circumference. The mounting seat has a protrusion, and the upper side of the protrusion has a PCB board mounting groove for easy installation of the PCB board. The inner cavity of the mounting seat is divided into an upper chamber and a lower chamber by an annular partition. The outer ends of the upper chamber and the lower chamber are respectively provided with spring mounting grooves for easy installation of upper springs and lower springs. The upper spring, upper connecting block, drum paper, and lower connecting block are located in the upper chamber of the frame, while the voice coil, washer, magnet, U-cup, and lower spring are located in the lower chamber of the frame.

2. The dual diaphragm vibration loudspeaker of claim 1, wherein, The lower spring is fixed to the magnetic circuit of the U-cup, and the upper spring is fixed to the drum paper. When the drum paper and voice coil move in the magnetic field, they generate airflow. When the U-cup and drum paper vibrate, they simultaneously push the lower spring and the upper spring to vibrate, thereby generating a vibration sensation.

3. The dual diaphragm vibration loudspeaker of claim 1, wherein, The press-fit nut post includes a nut post body and a limiting end plate at its end. The nut post body has a threaded hole inside, and the axial length of the nut post body matches the axial thickness of the basin frame.

4. The dual diaphragm vibrating loudspeaker of claim 1, wherein, The upper spring sheet includes an upper central spring sheet, an upper inner ring body, an upper outer ring body, an upper inner yoke, and an upper outer yoke. An upper riveting through hole is provided at the center of the upper central spring sheet. Several upper inner yokes are connected between the upper inner ring body and the upper central spring sheet. Several upper outer yokes are connected between the upper outer ring body and the upper inner ring body. The positions of the upper inner yoke and the upper outer yoke are staggered.

5. The dual diaphragm vibrating loudspeaker of claim 1, wherein, The lower spring includes a lower center spring, a lower inner ring body, a lower outer ring body, a lower inner yoke, and a lower outer yoke. A lower riveting through hole is provided at the center of the lower center spring. Several lower inner yokes are connected between the lower inner ring body and the lower center spring. Several lower outer yokes are connected between the lower outer ring body and the lower inner ring body. The positions of the lower inner yoke and the lower outer yoke are staggered.

6. The dual spider vibrating loudspeaker of claim 1, wherein, The material of the press-fit nut post is copper.

7. The dual spider vibrating loudspeaker of claim 1, wherein, The upper and lower spring sheets are made of stainless steel that has undergone cold deformation treatment.

8. The dual diaphragm vibration loudspeaker of claim 1, wherein, The paper used for the drum is made of PU material.

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