TWM659132U - Headphone driver structure - Google Patents

Abstract

A headphone unit structure mainly includes: a vibration system composed of a diaphragm connected to a voice coil below, the diaphragm is rectangular; a magnetic circuit system composed of a washer combined with a magnet, and; a support system composed of a bottom frame, a protective sheet, and an outer shell connected together. The overall planning is based on the voice coil structure, and a dynamic armature-like auxiliary structure is added to the middle part. The most significant feature is that the internal diaphragm is changed into a rectangle, with a voice coil on one side and a coil of a reverse magnetic circuit on the other side, while the outside is formed into a small rectangular speaker with enhanced protection, so that the assembled unit has a dynamic armature-like shell, which is suitable for modularization and convenient for large and small size production and parallel use, that is, it breaks through the shortcomings of the traditional circular voice coil structure, and at the same time has a push-pull output effect, greatly improving the high-resolution sound quality.

Description

Headphone unit structure

This work is related to the technical field of headphones, especially a headphone unit structure.

High-resolution headphones usually have precise driver units and optimized sound channel designs, which can present clear and vivid sound effects. Regardless of the type of music, they can provide rich details and wide frequency response. There are three main types of high-resolution headphone structures: voice coil type, dynamic armature type, and hybrid type. The driver unit of the voice coil headphone consists of a coil and a permanent magnet. When the current passing through the coil changes, it generates force in the magnetic field, causing the coil to move, which in turn causes the diaphragm connected to the coil to vibrate and produce sound. Its advantages include providing clearer and more detailed sound quality, a looser and more natural sound, and fuller mid-range and low-frequency performance, which is more suitable for listening to pop music, rock music, etc.

Dynamic armature headphones transmit energy to the center of a micro-diaphragm through a precisely structured connecting rod, which generates vibrations and produces sound. The advantage is that they provide more consistent and powerful sound quality, and the sound quality is warmer and mellower, with better reproduction of details and clearer sound lines. They are suitable for listening to vocals, classical music, and other types of music that require richer and more delicate sound performance.

Hybrid headphones combine the technologies of dynamic and balanced armature. Usually, the dynamic unit is responsible for low frequencies, while the balanced armature unit is responsible for mid- and high frequencies. Its advantage is that it can have the advantages and performance of both dynamic and balanced armature, providing a more comprehensive sound experience.

But in practice, the disadvantage of hybrid headphones is that the three frequencies often interfere with each other. The disadvantages of dynamic earphones include narrow frequency response, unnatural sound, especially poor performance in low frequencies. The disadvantage of voice coil earphones is mainly that the structure is complex, resulting in increased power consumption, increased background noise, and easy mutual interference.

In particular, most traditional voice coils have a circular structure and are not encapsulated on the outside. It is technically difficult to install them inside an in-ear headphone with limited space like a high-fidelity audio combination, so further improvement is necessary.

In view of this, the main purpose of this invention is to provide an earphone unit structure, which mainly includes: a vibration system, a magnetic circuit system, and a support system, wherein the vibration system is at least composed of a diaphragm connected to a voice coil, and the diaphragm is rectangular; the magnetic circuit system is at least composed of a washer combined with a magnet, and a magnetic gap is formed between the washer and the magnet to allow the voice coil to be suspended and placed therein; and the support system is at least composed of a The bottom frame, a protective sheet, and an outer shell are connected and nested to form a small rectangular sound box. The protective sheet and the bottom frame form a first space, which contains the magnetic circuit system and the vibration system. The protective sheet is provided with an opening portion and a solid portion on the surface, and a protective gap is provided between the bottom of the protective sheet and the diaphragm. The top of the protective sheet and the outer shell form a second space, and a coil is placed on the solid portion to form a reverse magnetic circuit.

In a preferred embodiment, the bottom frame, the protective sheet, and the outer shell are all rectangular, and the three are arranged such that the outer shell diameter is larger than the bottom frame diameter and larger than the protective sheet diameter.

In a preferred implementation, a central groove is provided on the inner side of the bottom of the bottom frame for the washer and the magnet to be inserted and fixed, and an air hole is provided on the bottom of the groove facing outward, and a filter is attached to the air hole.

In a preferred embodiment, the earphone unit is disposed in a high-resolution earphone, including a wireless Bluetooth earphone, an earmuff earphone, an earhook earphone, an earplug earphone, or an in-ear earphone, but the invention is not limited thereto.

Compared with the existing known technology, the advantages of this creative headphone unit structure are: the overall planning and design are simple and practical, based on the voice coil structure, and a dynamic armature-like auxiliary structure is added to the middle part. The biggest feature is that the internal diaphragm is changed to a rectangle, with a voice coil on one side and a coil of a reverse magnetic loop on the other side, and the outside is a small rectangular speaker with enhanced protection, so that the assembled unit has a dynamic armature-like shell, which is suitable for modularization and convenient for large and small size production and parallel use, that is, it breaks through the shortcomings of the traditional circular voice coil structure, and at the same time has a push-pull output effect, which can greatly improve the high-resolution sound quality to meet the needs of music lovers.

100: Headphones unit structure

10: Vibration system

11: Diaphragm

113: Protection gap

12: Voice coil

20: Magnetic circuit system

21: Washer

22: Magnet

30:Support system

31: Bottom frame

310: outlet

311: Groove

312: Ventilation hole

32: Protective film

320: Opening part

321: Solid part

33: Shell

330: accommodating opening

331: Recessed room

332: Recessed room

35: Coil

36: Mouth for sound output

37: Filter

40: Circuit board

S101.S102.S103:Methods

Figure 1 A three-dimensional exploded view of the unit structure of this creative headset.

Figure 2 Schematic diagram of the pair of single speakers of this creative headphone.

Figure 3 A three-dimensional assembly diagram of the unit structure of this creative headset.

Figure 4 A three-dimensional assembly diagram of the unit structure of this creative headset from another perspective.

Figure 5 is a cross-sectional diagram of the unit structure of this creative headphone.

Figure 6 Flowchart of the manufacturing method of the creative earphone unit.

Figure 7: Application diagram of the unit structure of this creative headset.

In order to facilitate understanding of the content of this invention and the effects that can be achieved, specific embodiments are listed with diagrams and described in detail as follows: Referring to Figures 1 to 5, an earphone unit structure 100 provided in this invention mainly includes: a vibration system 10, a magnetic circuit system 20, and a support system 30; wherein the vibration system 10 is at least composed of a diaphragm 11 connected to a voice coil 12 below, and the diaphragm 11 is rectangular; the magnetic circuit system 20 is at least composed of a washer 21 combined with a magnet 22, and a magnetic gap is formed between the washer 21 and the magnet 22 to allow the voice coil 12 to be suspended. The supporting system 30 is at least composed of a bottom frame 31, a protective sheet 32, and an outer shell 33 connected and nested to form a small rectangular sound box. The protective sheet 32 and the bottom frame 31 are paired to form a first space, which contains the magnetic circuit system 20 and the vibration system 10. The protective sheet 32 is provided with an opening portion 320 and a solid portion 321. A protective gap 113 is provided between the bottom of the protective sheet 32 and the diaphragm 11. The top of the protective sheet 32 and the outer shell 33 form a second space. A coil 35 is placed on the solid portion 321 to form a reverse magnetic circuit.

The preferred implementation is shown in FIG2 , wherein the bottom frame 31 , the protective sheet 32 , and the outer shell 33 are all rectangular, and the three are arranged such that the outer shell 33 has a diameter greater than that of the bottom frame 31 and a diameter greater than that of the protective sheet 32.

The preferred implementation is shown in Figures 1 to 5, wherein the bottom frame 31 is a shallow concave body with a thick bottom, and a wire outlet 310 is provided on its side for connecting a circuit board 40 with a wire; the protective sheet 32 is a thin shallow concave body; the outer shell 33 is a deep concave body with a thick top, and a sound outlet 36 and a receiving port 330 are provided on its side for the circuit board 40 to be placed.

The preferred implementation is shown in Figures 1 to 5, wherein the bottom inner side of the bottom frame 31 is provided with a central groove 311 for the washer 21 and the magnet 22 to be placed and fixed, and an air hole 312 is provided at the bottom of the groove 311, and a filter 37 is attached to the air hole 312; the top inner side of the housing 33 is provided with two concave chambers 331 and 332, wherein the coil 35 is placed in one concave chamber 331, and the other side of the coil 35 is placed on the solid part 321 of the protective sheet 32; and the inner side of the other concave chamber 332 is provided above the opening part 320 of the protective sheet 32 for ventilation, and the outer side is connected to the sound outlet 36.

More specifically, as shown in FIG. 1 to FIG. 6 , the present invention provides an application method of an earphone unit structure, which mainly includes: constructing an earphone unit structure 100, which has a vibration system 10, a magnetic circuit system 20, and a support system 30, wherein the vibration system 10 is at least composed of a diaphragm 11 connected to a voice coil 12 below, and the diaphragm 11 is rectangular; the magnetic circuit system 20 is at least composed of a washer 21 combined with a magnet 22, and a magnetic gap is formed between the washer 21 and the magnet 22 to allow the voice coil 12 to be suspended and placed therein; and the support system 30 is at least composed of a bottom frame 31, a protective sheet 32, and an outer shell 33. The magnetic circuit system 20 and the vibration system 10 are placed in the structure of the earphone unit 100, and the following method is performed: S101. The voice coil 12 is provided on one side of the rectangular diaphragm 11 inside the earphone unit structure 100, and a coil 35 of a reverse magnetic circuit is provided on the other side; S102. The bottom frame 31, the protective sheet 32, and the outer shell 33 are used to form a small rectangular sound box with enhanced protection outside the earphone unit structure 100, and a sound outlet 36 for external sound is also provided next to it; and; S103. The voice coil earphone unit structure 100 formed as a whole has a housing similar to that of a moving iron, and at the same time has a push-pull output effect.

This creation combines the advantages of voice coil and dynamic armature, so that the headphone unit can provide higher resolution, making the sound clearer and the details richer. The structure of the headphone unit is simple, easy to assemble, low in manufacturing cost, and has stable vibration and frequency response with excellent output sound quality. As shown in Figure 7, it can be conveniently modularized into large and small units according to different audio outputs, and then arranged according to the best sound selection or customized preferences, such as high-fidelity audio matching combination, and installed inside high-resolution headphones with limited space.

The product can not only be used with smart phones and voice assistants, but also be suitable for making various high-resolution headphones of different levels, such as wireless Bluetooth headphones, earmuff headphones, earhook headphones, earbud headphones, or in-ear headphones. In particular, the unit structure 100 of the earphones of this invention is small in size, and the appearance is covered with a small rectangular speaker, which is most suitable for unit merging to make in-ear headphones. When used, the earphone sound outlet is equipped with a silicone sleeve to fill the gap in the ear canal and create a closed listening environment similar to an earmuff, so that it has the characteristics of high resolution and excellent sound quality performance.

In application, when the voice coil 12 is connected to an electrical signal, the induced magnetic field interacts with the magnetic field generated by the magnet 22, causing the voice coil 12 to move up and down, allowing the diaphragm 11 to emit sound. At the same time, because the other side of the diaphragm 11 is provided with a coil 35 with a reverse magnetic loop, the effect is equivalent to having two drive units at the same time, so when the audio signal passes through, both sides will move at the same time but in opposite directions. This type of movement can produce a higher sound pressure level, which is very important for the reproduction of music details. It can increase the sound energy and improve the volume and clarity of the bass or mid- and high-range. In addition, because the two drive units move in opposite directions, their vibrations can offset each other, which can help reduce the resonance of the speaker and reduce distortion.

In addition, the rectangular diaphragm 11 of this creation also has advantages in high-resolution applications. This design not only maximizes the area occupied by the diaphragm 11, but also enhances the sound pressure and presents a stronger bass. At the same time, it can also reduce the displacement of the driver unit while maintaining the sound pressure unchanged, thereby reducing distortion and improving vocal clarity. This is very beneficial for music playback that requires high resolution, and can enhance the mid-range to make the human voice brighter and easier to identify.

Compared with the existing known technology, the advantages of the unit structure of the earphone of this invention are: the overall planning and design are simple and practical, based on the voice coil structure, and a dynamic armature-like auxiliary structure is added to the middle part. The most important feature is that the internal diaphragm 11 is changed into a rectangle, with a voice coil 12 on one side and a coil 35 of a reverse magnetic circuit on the other side, and the outside is formed into a small rectangular speaker with enhanced protection, so that the unit has a dynamic armature-like shell, which is suitable for modules. It is convenient for large and small sizes to be produced and used together, that is, it breaks through the shortcomings of the traditional circular voice coil structure, and at the same time has a push-pull output effect, which can greatly improve the high-resolution sound quality to meet the high demands of music lovers, professional musicians, recorders, DJs, etc., provide excellent sound quality experience, or be used in professional music production and recording work, so that they can appreciate the details and richness of music more deeply and enjoy the excellent sound quality experience of high-resolution music.

In summary, this creation is novel and practical and fully meets the patent requirements, so a new patent application is filed. However, the above is only a better implementation example of this creation, and it should not be used to limit the scope of implementation of this creation; therefore, all equivalent changes and modifications made according to the scope of the patent application of this creation and the content of the creation description should be within the scope of this creation patent.

100: Headphones unit structure

10: Vibration system

11: Diaphragm

12: Voice coil

20: Magnetic circuit system

21: Washer

22: Magnet

30:Support system

31: Bottom frame

310: Cable outlet

311: Groove

312: Ventilation hole

32: Protective film

320: Opening part

321: Solid part

33: Shell

330: accommodating opening

35: Coil

Claims (5)

A headphone unit structure mainly includes: a vibration system, a magnetic circuit system, and a support system; wherein the vibration system is at least composed of a diaphragm connected to a voice coil below, and the diaphragm is rectangular; the magnetic circuit system is at least composed of a washer combined with a magnet, and a magnetic gap is formed between the washer and the magnet to allow the voice coil to be suspended and placed therein; and the support system is at least composed of a bottom frame, a protective sheet, and an outer shell are connected and nested to form a small rectangular sound box. The protective sheet and the bottom frame are combined to form a first space, which contains the magnetic circuit system and the vibration system; the protective sheet is provided with an opening part and a solid part, and a protective gap is provided between the bottom of the protective sheet and the diaphragm. The top of the protective sheet and the outer shell form a second space, and a coil is placed on the solid part to form a reverse magnetic circuit. As described in claim 1, the earphone unit structure, wherein the bottom frame, the protective sheet, and the outer shell are all rectangular, and the three are arranged such that the outer shell diameter is larger than the bottom frame diameter and larger than the protective sheet diameter. The earphone unit structure as described in claim 1, wherein the bottom frame is a shallow concave body with a thick bottom, and a wire outlet is provided on the side for the wire to connect to a circuit board; the protective sheet is a thin shallow concave body; the outer shell is a deep concave body with a thick top, and a sound outlet and a receiving port are provided on the side for the circuit board to be placed. As described in claim 3, the earphone unit structure, wherein the bottom inner side of the bottom frame is provided with a central groove for the washer and the magnet to be placed and fixed, and an air hole is provided at the bottom of the groove facing outward, and a filter is attached to the air hole; the top inner side of the outer shell is provided with two concave chambers, one of which is provided for the coil to be placed, and the other side of the coil is placed on the solid part of the protective sheet; and the inner side of the other concave chamber is provided above the opening part of the protective sheet corresponding to the ventilation, and its outer side is connected to the sound outlet. The earphone unit structure as described in claim 1, wherein the earphone unit is disposed in a high-resolution earphone, including a wireless Bluetooth earphone, an earmuff-type earphone, an earhook-type earphone, an earplug-type earphone, or an in-ear earphone.

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