CN205987287U - New sound cavity structure earphone - Google Patents

Abstract

The utility model provides a novel earphone with a sound cavity structure, which comprises an earphone rear shell, an earphone face shell fixed with the earphone rear shell, an earphone loudspeaker and an earphone conducting wire, the bottom of the earphone rear shell is provided with a wire passing hole, the earphone wire penetrates through the wire passing hole to punch a wire knot in the earphone rear shell, the earphone lead is electrically connected with the earphone loudspeaker through the lead knot, a rear cavity is formed between the earphone loudspeaker and the earphone rear shell, a sound short pipe is arranged in the rear shell of the earphone, one end of the sound short pipe is communicated with the rear cavity, the other end of the sound short pipe is communicated with the wire passing hole, a tone tuning cloth is arranged between the sound short pipe and the rear cavity, the sound-adjusting cloth plays a role in adjusting the amplitude of sound waves, a first damping mesh cloth is arranged in the earphone rear shell, paste first damping screen cloth the right side of sound nozzle stub, the utility model discloses a thereby widen intermediate frequency resonance frequency response curve and improve the sound quality of novel sound cavity structure earphone.

Description

New sound cavity structure earphone

technical field

The utility model relates to the technical field of earphones, in particular to an earphone with a novel acoustic cavity structure.

Background technique

With the advancement of science and technology, people have higher and higher requirements for various consumer electronic products. Earphones are already an indispensable product in people's lives. The impact is very important. Due to the limitation of the size of the internal structure of the earphone and the size of the driver unit and its electro-acoustic characteristics, the expansion of the overall mid-frequency resonance frequency response curve of the earphone will also be greatly suppressed. Therefore, the sound cavity structure of the earphone is very important for the quality of the earphone. play a vital role.

Existing earphones comprise an earphone back shell, an earphone face shell fixed with the earphone back shell, an earphone horn and an earphone wire.

The intermediate frequency resonance curve of the sound in the back cavity of the existing earphone is low, resulting in poor sound quality of the earphone, the structure of the back cavity of the existing earphone is unstable, resulting in poor sounding effect of the earphone, and the connection structure of the existing earphone is unstable , causing the back shell of the earphone and the two sides of the earphone to easily fall off.

Utility model content

Based on this, the purpose of the utility model is to provide a new earphone sound cavity structure that can broaden the frequency response curve of the intermediate frequency resonance.

A novel acoustic cavity structure earphone, comprising an earphone back shell, an earphone face shell fixed to the earphone back shell, an earphone horn and an earphone wire, the bottom of the earphone back shell is provided with a wire hole, and the earphone wire passes through the The wire hole is provided with a wire knot in the earphone rear shell, and the earphone wire is electrically connected to the earphone speaker through the wire knot, and a rear cavity is formed between the earphone speaker and the earphone rear shell, and the earphone A short sound pipe is provided in the rear shell, one end of the short sound pipe communicates with the rear cavity, and the other end communicates with the wire passing hole, and a tuning cloth is arranged between the short sound pipe and the rear cavity. The tuning cloth plays the role of adjusting the amplitude of the sound wave. The earphone rear shell is provided with a first damping mesh, and the first damping mesh is pasted on the right side of the short acoustic tube.

The above-mentioned new acoustic cavity structure earphone, through the design of the short acoustic tube, forms an air high-pass filter acoustic line in the earphone rear shell, thereby expanding the intermediate frequency resonance frequency response curve, and further improving the performance of the new acoustic cavity structure earphone. Sound effect, through the design of the tuning cloth, is used to adjust the size of the sound wave amplitude in the rear cavity, thereby improving the sound quality of the sound emitted by the earphone with the new sound cavity structure, through the design of the first damping mesh, It plays the role of adjusting the sound resistance of the rear cavity, thereby improving the sound quality of the earphone with the new sound cavity structure.

Further, the earphone wire leads out the first core wire and the second core wire through the wire junction, the earphone speaker is provided with a first pad and a second pad, and the first core wire and the first core wire The welding pad is welded, and the second core wire is welded to the second welding pad, so as to realize the electrical connection between the earphone speaker and the earphone wire.

Further, the short acoustic tube adopts a circular or square structure.

Further, the connection between the wire and the inner wall of the earphone rear shell is completely sealed by a sealant, thereby ensuring the stability of the volume of the rear cavity.

Further, a groove is provided on the top outer wall of the earphone rear shell, and a second damping mesh is pasted in the groove, and the influence of external sound on the rear cavity is reduced by the second damping mesh.

Further, a protrusion is provided on the top outer wall of the earphone rear case, a recess is provided on the top inner wall of the earphone cover, and the protrusion engages with the recess.

Further, an extension part is provided on the inner wall of the earphone face shell, and the extension part is used to engage the earphone speaker.

Further, a shock absorber is provided between the earphone wire and the inner wall of the earphone rear case.

Description of drawings

Fig. 1 is a structural schematic diagram of a new acoustic cavity structure earphone 100 in the first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the earphone rear case 1 in FIG. 1;

Fig. 3 is a schematic structural view of the earphone face shell 2 in Fig. 1;

Fig. 4 is a schematic structural view of the earphone speaker 3 in Fig. 1;

FIG. 5 is a schematic structural view of the earphone wire 4 in FIG. 1;

FIG. 6 is a schematic structural diagram of a new acoustic cavity structure earphone 200 in the second embodiment of the present invention.

Description of main element symbols

New sound cavity structure earphone 100, 200 Headphone back shell 1 Acoustic short tube 11, 11a The first damping net 12 Cable hole 13 Raised part 14 groove 15 tuning cloth 16 Second damping mesh 17 shock absorber 18 Headphone shell 2 Depression twenty one Extension twenty two headphone speaker 3 first pad 31 Second pad 32 headphone cable 4 wire junction 41 first core 42 second core wire 43 back cavity 5

The following specific embodiments will further illustrate the utility model in conjunction with the above-mentioned accompanying drawings.

detailed description

In order to facilitate a better understanding of the utility model, the utility model will be further explained below in conjunction with the drawings of related embodiments. Embodiments of the utility model are provided in the accompanying drawings, but the utility model is not limited to the above-mentioned preferred embodiments. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more fully.

Please refer to Fig. 1 to Fig. 2, the earphone 100 of novel acoustic cavity structure in the first embodiment of the present utility model comprises earphone rear case 1, earphone face case 2 fixed with earphone rear case 1, earphone speaker 3 and earphone wire 4, described earphone The bottom of the rear shell 1 is provided with a wire hole 13, and the earphone wire 4 passes through the wire hole 13 to form a wire knot 41 in the earphone rear shell 1, and the earphone wire 4 passes through the wire knot 41 and The earphone speaker 3 is electrically connected, and a rear cavity 5 is formed between the earphone speaker 3 and the earphone rear shell 1. A short sound tube 11 is arranged in the earphone rear shell 1, and one end of the short sound tube 11 is connected to the earphone rear shell 1. The back cavity 5 communicates, and the other end communicates with the wire hole 13. A tuning cloth 16 is arranged between the short sound pipe 11 and the back cavity 5, and the sound wave is adjusted through the tuning cloth 16. The function of the amplitude, the earphone rear shell 1 is provided with a first damping mesh 12, the first damping mesh 12 is pasted on the right side of the short sound tube 11, through the first damping cloth 12 can play To adjust the sound resistance of the rear cavity 5, and then improve the quality of the new acoustic cavity structure earphone 100.

The short acoustic tube 11 adopts a square structure, and an acoustic line of an air high-pass filter is formed between the short acoustic tube 11 and the rear cavity 5. According to the acoustic principle, when the sound wave radiates to the cavity, it passes through a When the short acoustic tube 11 is open at the end, only the sound waves exceeding the resonance frequency of the short acoustic tube 11 can be radiated in the short acoustic tube 11, so the sound waves below the short resonance frequency of the acoustic short tube 11 are not It will radiate into the short acoustic tube 11, and then through the design of the short acoustic tube 11, the purpose of expanding the frequency response curve of the intermediate frequency resonance can be achieved, thereby improving the sound quality of the new rear cavity structure earphone 100.

A shock absorber 18 is provided between the earphone wire 3 and the inner wall of the earphone rear shell 1, and the shock absorber 18 adopts a square structure, and the design of the shock absorber 18 prevents the earphone wire 4 from contacting the earphone rear shell 1. The vibration between the inner walls of the earphone rear shell 1 due to the sound further improves the structural stability of the novel acoustic cavity structure earphone 100 .

The connection between the wire junction 41 and the inner wall of the earphone rear shell 1 is completely sealed by a sealant, thereby ensuring the stability of the volume of the rear cavity 5 and further ensuring the quality of the earphone 100 with the novel acoustic cavity structure.

The top outer wall of the earphone rear shell 1 is provided with a groove 15, and a second damping mesh 17 is pasted in the groove 15, and the impact of external sound on the rear cavity 5 is reduced by the second damping mesh 17. , thereby ensuring the sound quality of the novel acoustic cavity structure earphone 100 .

The top outer wall of the earphone rear case 1 is provided with a raised portion 14, and the top inner wall of the earphone cover 2 is provided with a recessed portion 21, through the engagement of the raised portion 14 and the recessed portion 21, further The structural stability of the novel acoustic cavity structure earphone 100 is improved.

Please refer to FIG. 3 , which is a schematic diagram of the structure of the earphone face shell 2 in FIG. The part 2 is used to engage the earphone speaker 3 , so as to ensure the stability of the earphone speaker 3 inside the new acoustic cavity structure earphone 100 .

Referring to Fig. 4 to Fig. 5, the earphone wire 4 leads out the first core wire 42 and the second core wire 43 through the wire junction 41, and the earphone speaker 3 is provided with a first pad 31 and a second solder pad. plate 32, the first core wire 42 is welded to the first pad 31, and the second core wire 43 is welded to the second pad 32, thereby realizing the electrical connection between the earphone speaker 3 and the earphone wire 4 connect.

Please refer to Fig. 6, which is a structural schematic diagram of a new acoustic cavity structure earphone 200 in the second embodiment of the present utility model. The structure of the second embodiment is roughly the same as that of the first embodiment. The tube 11a adopts an elliptical structure. Through the design of the short acoustic tube 11a, the mid-frequency resonance frequency response curve of the new acoustic cavity structure earphone 200 is expanded, and the sound quality of the novel acoustic cavity structure earphone 200 is improved.

The above-mentioned embodiments have described the technical principle of the present utility model, and these descriptions are only for explaining the principle of the present utility model, and cannot be interpreted as limitations of the protection scope of the present utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation modes of the present utility model without creative work, and these modes will all fall within the protection scope of the present utility model.

Claims (8)

1. a kind of new acoustical cavity earphone, including earphone back cover, the fixing earphone face-piece with earphone back cover, earphone horn and Earphone cord it is characterised in that：Described earphone back cover bottom is provided with cable-through hole, and described earphone cord is by through described cable-through hole Stamp wire knot in described earphone back cover, described earphone cord is passed through described wire knot and is electrically connected with described earphone horn, Form back cavity between described earphone horn and described earphone back cover, in described earphone back cover, be provided with sound short tube, described sound short tube One end is communicated with described back cavity, and the other end is communicated with described cable-through hole, is provided with tuning cloth between described sound short tube and described back cavity, Play the effect of adjustment sonic wave amplitude by described tuning cloth, in described earphone back cover, be provided with the first damping screen cloth, described first Damping screen cloth is pasted onto the right side of described sound short tube.

2. new acoustical cavity earphone according to claim 1 it is characterised in that：Described earphone cord passes through described wire Knot has drawn the first heart yearn and the second heart yearn, and described earphone horn is provided with the first pad and the second pad, described first heart yearn With the first pad solder, described second heart yearn and the second pad solder, it is achieved thereby that described earphone horn is led with described earphone The electric connection of line.

3. new acoustical cavity earphone according to claim 1 it is characterised in that：After described earphone cord and described earphone It is provided with vibroshock between shell inwall.

4. new acoustical cavity earphone according to claim 1 it is characterised in that：Described wire knot and described earphone back cover All sealed by fluid sealant between inwall, thus ensure that stablizing of described back cavity volume.

5. new acoustical cavity earphone according to claim 1 it is characterised in that：In the top exterior walls of described earphone back cover It is provided with groove, in described groove, is pasted with the second damping screen cloth, external sound is reduced to institute by the described second damping screen cloth State the impact of back cavity.

6. new acoustical cavity earphone according to claim 1 it is characterised in that：In the top exterior walls of described earphone back cover It is provided with lobe, the top inner wall of described earphone face-piece is provided with depressed part, and described lobe is engaged with described depressed part.

7. new acoustical cavity earphone according to claim 1 it is characterised in that：The inwall of described earphone face-piece is provided with Extension, described extension is used for engaging described earphone horn.

8. new acoustical cavity earphone according to claim 1 it is characterised in that：Described sound short tube using oval or Square structure.