Moving iron loudspeaker structure capable of reducing tympanic membrane pressure

Abstract

A moving iron loudspeaker structure capable of reducing tympanic membrane pressure comprises an outer cover assembly, a sound output assembly, a driving assembly and a vibration assembly. The outer cover assembly comprises a rear cavity cover, a rear cavity hole is formed in the bottom of the rear cavity cover, a front cavity cover is assembled on the rear cavity cover, and a through opening is formed in the front end of the front cavity cover. The sound output assembly is arranged at one end of the outer cover assembly and comprises a sound output nozzle, and sound is output from the sound output nozzle through the through opening. The vibration assembly is arranged in the front cavity cover and comprises a vibrating diaphragm, and a vibrating diaphragm hole is further formed in the vibrating diaphragm. The driving assembly is arranged in the rear cavity cover and used for driving the vibrating diaphragm to vibrate. The earphone can reduce the pressure of the earphone on the tympanic membrane when a user wears the earphone, and improves the sound quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to a moving iron earphone local structure field especially relates to a moving iron loudspeaker structure that reduces tympanic membrane pressure. BACKGROUND

[0002] The moving iron earphone is a kind of moving iron type sound unit, that is, the earphone that makes diaphragm movement by iron sheet, has the characteristics such as small volume, high sensitivity and stable frequency response curve.

[0003] The moving iron earphone loudspeaker in prior art is strong in closure, so that when driving, large ear pressure, that is, air pressure, is formed in ear, which makes the wearer uncomfortable after long time wearing, and the sound quality heard after tympanic membrane is pressed is poor. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned defects, the utility model provides a moving iron loudspeaker structure that reduces tympanic membrane pressure, which can reduce the pressure generated by earphone on tympanic membrane when the user wears it and improve sound quality.

[0005] In order to realize the purpose of the utility model, the following technologies are adopted:

[0006] A moving iron loudspeaker structure that reduces tympanic membrane pressure, comprising:

[0007] The outer cover assembly includes a rear cavity cover, a rear cavity hole is formed in the bottom of the rear cavity cover, a front cavity cover is assembled on the rear cavity cover, and a through hole is formed in the front end of the front cavity cover;

[0008] The sound output assembly is arranged at one end of the outer cover assembly and includes a sound output nozzle, and sound is output from the sound output nozzle through the through hole;

[0009] The vibration assembly is arranged in the front cavity cover and includes a diaphragm, and a diaphragm hole is further formed in the diaphragm;

[0010] The driving assembly is arranged in the rear cavity cover and is used for driving the diaphragm to vibrate.

[0011] Further, a plurality of outer lead holes are formed in the rear end of the rear cavity cover.

[0012] Further, the sound output assembly further includes an outer plate assembled at the front end of the front cavity cover, the outer plate is provided with a drum portion protruding outward on one side surface, and the sound output nozzle extends outward from the outer end of the drum portion.

[0013] Further, a suspension edge is arranged on the upper end surface of the diaphragm.

[0014] Further, the driving assembly includes a solder pad fixed to the inner wall of the rear end of the rear cavity cover, a U-shaped armature is arranged on the inner side surface of the solder pad, an armature is arranged on the inner end surface of the armature, a coil and a magnetic steel are sequentially arranged on the armature on the side surface of the solder pad, and inner lead holes matched with the outer lead holes are formed in the side surface of the solder pad.

[0015] Furthermore, a transmission rod is provided at the lower end of the diaphragm, and the lower end of the transmission rod is fixed to the upper end of the outer periphery of the magnet.

[0016] The beneficial effects of this technical solution are as follows:

[0017] When the diaphragm vibrates, the pressure in the diaphragm hole and the rear cavity hole is released simultaneously, which can solve the problem of discomfort caused by excessive air pressure in the ear canal when wearing headphones for a long time and improve sound quality. Attached Figure Description

[0018] Fig. 1 An exploded view of an embodiment of this application is shown.

[0019] Fig. 2 An overall perspective view of an embodiment of this application is shown. Detailed Implementation

[0020] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figs. 1-2 The structure shown is a moving iron loudspeaker structure for reducing tympanic membrane pressure, including an outer cover assembly 1, a sound output assembly 2, a drive assembly 3, and a vibration assembly 4.

[0022] The outer cover assembly 1 includes a rear cavity cover 11, a rear cavity hole 12 is provided at the bottom of the rear cavity cover 11, and a number of external wire holes 13 are provided at the rear end of the rear cavity cover 11. A front cavity cover 14 is assembled on the rear cavity cover 11 by adhesive bonding, and a through opening 15 is provided at the front end of the front cavity cover 14.

[0023] The sound output component 2 is located at one end of the outer cover component 1, including an outer plate 21 that is glued to the front end of the front cavity cover 14. One side of the outer plate 21 is provided with an outwardly protruding drum part 22. The outer end of the drum part 22 extends into a sound outlet 23. The sound passes through the opening 15 and through the drum part 22 before being output from the sound outlet 23.

[0024] The drive assembly 3 is located inside the rear cavity cover 11 and includes a solder pad 33 fixed to the inner wall of the rear end of the rear cavity cover 11. The side of the solder pad 33 is provided with an inner wire hole 34 that matches the outer wire hole 13. In use, the cable completely covers the outer wire hole 13, so that there is no gap outside the speaker structure. The inner side of the solder pad 33 is provided with a U-shaped armature 31. The inner end face of the armature 31 is provided with an armature 32. The side of the solder pad 33 is also provided with a coil 35 and a magnet 36 located on the armature 32. The cable is connected to the coil 35 through the outer wire hole 13 and the inner wire hole 34 in sequence.

[0025] The vibration assembly 4 is located inside the front cavity cover 14 and includes a diaphragm 41. The upper end face of the diaphragm 41 is provided with a U-shaped suspension edge 42. The diaphragm 41 is also provided with a diaphragm hole 43. The lower end of the diaphragm 41 is provided with a transmission rod 44. The lower end of the transmission rod 44 is fixed to the upper end of the outer periphery of the magnet 36.

[0026] Working mode:

[0027] After the coil 35 receives the electric signal, an electromagnetic force is formed to drive the armature 32, which drives the transmission rod 44, which vibrates the diaphragm 41, drives the air in the front cavity cover 14 to vibrate, and finally makes the sound from the sound outlet 23.

[0028] At the same time of emitting sound, the diaphragm hole 43 and the rear cavity hole 12 jointly form a double pressure relief structure, effectively solving the problem of discomfort caused by excessive ear canal air pressure when wearing the earphone for a long time, and making the sound better.

[0029] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A moving iron loudspeaker structure for reducing eardrum pressure, characterized by, The application relates to an audio output device. The audio output device comprises an outer cover assembly (1) and a driving assembly (3), wherein the outer cover assembly (1) comprises a rear cavity cover (11) with a rear cavity hole (12) formed in the bottom of the rear cavity cover (11), and a front cavity cover (14) is assembled on the rear cavity cover (11), and a through hole (15) is formed in the front end of the front cavity cover (14); the driving assembly (3) is arranged in the rear cavity cover (11) and used for driving the vibration of a diaphragm (41). The rear end of the rear cavity cover (11) is provided with a plurality of outer lead holes (13). The outer cover assembly (2) further comprises an outer plate (21) assembled on the front end of the front cavity cover (14), one side of the outer plate (21) is provided with a drum portion (22) protruding outward, and an audio output nozzle (23) extends to the outer end of the drum portion (22). The upper end surface of the diaphragm (41) is provided with a suspension edge (42).

2. The moving-coil loudspeaker structure of claim 1, wherein The driving assembly (3) comprises a solder pad (33) fixed to the inner wall of the rear end of the rear cavity cover (11), the inner side of the solder pad (33) is provided with a U-shaped armature (31), the inner end surface of the armature (31) is provided with an armature (32), and the side of the solder pad (33) is further provided with a coil (35) and a magnetic steel (36) in sequence and located on the armature (32), and the side of the solder pad (33) is provided with inner lead holes (34) matched with the outer lead holes (13) respectively.

3. The moving-coil loudspeaker structure of claim 1, wherein, The lower end of the diaphragm (41) is provided with a transmission rod (44), and the lower end of the transmission rod (44) is fixed to the outer circumferential side upper end of the magnetic steel (36).

4. The moving-coil loudspeaker structure of claim 1, wherein ​ 5. The moving-coil loudspeaker structure of claim 2, wherein, ​ 6. The moving-coil loudspeaker structure of claim 5, wherein, ​

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