CN203378017U

CN203378017U - Earphone loudspeaker

Info

Publication number: CN203378017U
Application number: CN201320497705.XU
Authority: CN
Inventors: 廖朝红
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-15
Filing date: 2013-08-15
Publication date: 2014-01-01
Anticipated expiration: 2023-08-15
Also published as: WO2015021851A1

Abstract

The utility model belongs to the technical field of the earphone loudspeaker, and in particular relates to the earphone loudspeaker. The earphone loudspeaker mainly comprises an earphone loudspeaker body. The earphone loudspeaker is characterized in that: the earphone loudspeaker body is internally provided with a front cover, a voice diaphragm, a U cup and a back cavity cover; a front cavity is formed between the front cover and the voice diaphragm; a first class back cavity is formed between the voice diaphragm and the U cup; and a variable voice diaphragm is formed between the U cup and the back cavity cover. The earphone loudspeaker is simple in structure, great in environmental protection, and good in sound effect, can reduce the fatigue and injury of the ears, and can greatly improve the shell shape space of the whole earphone loudspeaker body and improve the production efficiency; and the high practicability is realized.

Description

A kind of earphone horn

Technical field

The utility model belongs to the earphone horn technical field, specifically relates to a kind of earphone horn.

Background technology

In existing earphone production process, tuning is most important link.In current Headphone structure, sound film and protecgulum form ante-chamber, and sound film and U be cup-shaped becomes one-level back cavity, U cup and ear casing inner chamber formation secondary back cavity.Loudspeaker are phonation units of earphone, and the ear casing inner chamber affects the sound field of loudspeaker, and it directly changes the sound effect that ear is experienced.At present, the earphone tuning need to have been debugged roughly the loudspeaker frequency response curve, loads onto debugging repeatedly again after earphone, the uncertain impact produced to eliminate the ear casing inner chamber.But in the situation that a lot, inner chamber is fatefulue on the impact of loudspeaker sound field, to such an extent as to veto the design of whole earphone moulding.

The utility model content

The utility model, for the deficiencies in the prior art, provides a kind of earphone horn; It is simple in structure and environmental protection not only, and sound field effect is good, can reduce the tired and damage of ear, has improved greatly shell space design and the production efficiency of whole earphone horn body; It is practical.

In order to achieve the above object, a kind of earphone horn of the utility model, mainly comprise an earphone horn body, is provided with protecgulum, sound film, U cup and back cavity lid in described earphone horn body; Form ante-chamber between described protecgulum and sound film, form the one-level back cavity between sound film and U cup, between U cup and back cavity lid, form the variable announcement chamber.It should be noted that, corresponding adjustment can be made according to needs of production in shape and the position of back cavity lid.

Preferably, described protecgulum and sound film are located at the front end of U cup, and the back cavity lid is located at the rear end of U cup; And the sound film is located between protecgulum and U cup.

Preferably, the joining place between described protecgulum and U cup is provided with copper ring.

Preferably, the sound film in described one-level back cavity is provided with voice coil loudspeaker voice coil.

Preferably, the U cup in described one-level back cavity is provided with magnet steel.

Further, the upper end of described magnet steel is provided with washer.

Preferably, a side of described U cup is provided with acoustic damping cloth.

Preferably, on the limit of described U cup, offer porose, place, this hole acoustic damping cloth that has been sticked.

Preferably, the outer side edges of described back cavity lid is provided with terminal block.

Further, a side of described terminal block is provided with acoustic damping cloth.

The utility model, by changing the structure of original In-Ear Headphones loudspeaker, adds the back cavity lid in the loudspeaker back, the variable announcement chamber that formation can tuning substitutes the secondary back cavity of original U cup and the formation of ear casing inner chamber.New variable announcement chamber is more regular, existing experiment shows, the sound that loudspeaker send is after one-level back cavity and variable announcement intonation sound, can reduce to a great extent the impact of erose ear casing inner chamber on the loudspeaker sound field, make the final frequency response curve of earphone and loudspeaker that higher consistency be arranged.So also can make ear casing in the situation that leave enough intracavity spaces, can design the outward appearance that has more individual character.

This simple in structure and environmental protection, sound field effect is good, can reduce the tired and damage of ear, has improved greatly shell space design and the production efficiency of whole earphone horn body; It is practical.

The accompanying drawing explanation

Fig. 1 is previous earphone horn structural representation;

Fig. 2 is the earphone horn structural representation after improving.

Wherein, in Fig. 1,9 is copper ring, and 8,10 is acoustic damping cloth, and 11 is protecgulum, and 12 is the sound film, and 13 is the U cup, and 14 is voice coil loudspeaker voice coil, and 15 is magnet steel, and 16 is washer, and 17 is terminal block, and 18 is ante-chamber, and 19 is the one-level back cavity; In Fig. 2,20 is the back cavity lid, and 21 is protecgulum, and 22 is the sound film, and 23 is the U cup, and 24 is voice coil loudspeaker voice coil, and 25 is magnet steel, and 26 is washer, and 27 is terminal block, and 28 is ante-chamber, and 29 is the one-level back cavity, and 30 is the variable announcement chamber, and 31,33 is acoustic damping cloth, and 32 is copper ring.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.

Fig. 1 is previous earphone horn structural representation, as can be seen from Figure 1, in current Headphone structure, is provided with copper ring 9 in the earphone horn body, acoustic damping cloth 8, acoustic damping cloth 10 protecgulums 11, sound film 12, U cup 13, voice coil loudspeaker voice coil 14, magnet steel 15, washer 16 and terminal block 17.Described acoustic damping cloth 8 is attached on the hole of offering on the limit of U cup 13.Sound film 12 forms ante-chamber 18 with protecgulum 11, and sound film 12 forms one-level back cavity 19 with U cup 13, and U cup 13 can form the secondary back cavity with the ear casing inner chamber.Loudspeaker are phonation units of earphone, and the ear casing inner chamber affects the sound field of loudspeaker, and it directly changes the sound effect that ear is experienced.When the earphone tuning, need to debug roughly the loudspeaker frequency response curve, load onto debugging repeatedly again after earphone, the uncertain impact produced to eliminate the ear casing inner chamber.But in the situation that a lot, inner chamber is fatefulue on the impact of loudspeaker sound field, to such an extent as to veto the design of whole earphone moulding.

Fig. 2 is the earphone horn structural representation after improving, and as can be seen from Figure 2, a kind of earphone horn of the utility model embodiment, mainly comprise an earphone horn body, is provided with protecgulum 21, sound film 22, U cup 23 and back cavity lid 20 in described earphone horn body; Described protecgulum 21 and sound film 22 are located at the front end of U cup 23, and back cavity lid 20 is located at the rear end of U cup 23; And sound film 22 is located between protecgulum 21 and U cup 23.Form ante-chamber 28 between described protecgulum 21 and sound film 22, form one-level back cavity 29 between sound film 22 and U cup 23, between U cup 23 and back cavity lid 20, form variable announcement chamber 30.It should be noted that, corresponding adjustment can be made according to needs of production in shape and the position of back cavity lid 20.

With reference to Fig. 2, the sound film 22 in described one-level back cavity 29 is provided with voice coil loudspeaker voice coil 24; After one-level, 29 interior U cups 23 are provided with magnet steel 25, in the upper end of magnet steel 25, are provided with washer 26; And, on the outer side edges of back cavity lid 20, be provided with terminal block 27; And be provided with acoustic damping cloth 31 in a side of U cup 23 and terminal block 27, and the joining place between protecgulum 21 and U cup 23 is provided with

copper ring

32, and 33 of acoustic damping cloth are attached on the hole of offering on the limit of U cup 23.

Comparison diagram 1 and Fig. 2, the utility model is by changing the structure of original In-Ear Headphones loudspeaker, add back cavity lid 20 in the back of loudspeaker (namely the U cup 23), the variable announcement chamber 30 that formation can tuning, the secondary back cavity that comes U cup 13 in alternate figures 1 and ear casing inner chamber to form.New variable announcement chamber 30 is more regular, existing experiment shows, the sound that loudspeaker send is after one-

level back cavity

29 and 30 tunings of variable announcement chamber, can reduce to a great extent the impact of erose ear casing inner chamber on the loudspeaker sound field, make the final frequency response curve of earphone and loudspeaker that higher consistency be arranged.So also can make ear casing in the situation that leave enough intracavity spaces, can design the outward appearance that has more individual character.

Simple and the environmental protection of this example structure, sound field effect is good, can reduce the tired and damage of ear, has improved greatly shell space design and the production efficiency of whole earphone horn body; It is practical.

Below the utility model is described in detail, but apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from the scope of the present utility model that appended claims limits.

Claims

1. an earphone horn, mainly comprise an earphone horn body, it is characterized in that: be provided with protecgulum, sound film, U cup and back cavity lid in described earphone horn body; Form ante-chamber between described protecgulum and sound film, form the one-level back cavity between sound film and U cup, between U cup and back cavity lid, form the variable announcement chamber.

2. a kind of earphone horn according to claim 1, it is characterized in that: described protecgulum and sound film are located at the front end of U cup, and the back cavity lid is located at the rear end of U cup; And the sound film is located between protecgulum and U cup.

3. a kind of earphone horn according to claim 1, it is characterized in that: the joining place between described protecgulum and U cup is provided with copper ring.

4. a kind of earphone horn according to claim 1 is characterized in that: the sound film in described one-level back cavity is provided with voice coil loudspeaker voice coil.

5. a kind of earphone horn according to claim 1 is characterized in that: the U cup in described one-level back cavity is provided with magnet steel.

6. a kind of earphone horn according to claim 5, it is characterized in that: the upper end of described magnet steel is provided with washer.

7. a kind of earphone horn according to claim 1, it is characterized in that: a side of described U cup is provided with acoustic damping cloth.

8. a kind of earphone horn according to claim 1 is characterized in that: on the limit of described U cup, offer porose, this place, hole acoustic damping cloth that has been sticked.

9. a kind of earphone horn according to claim 1 is characterized in that: the outer side edges of described back cavity lid is provided with terminal block.

10. a kind of earphone horn according to claim 9, it is characterized in that: a side of described terminal block is provided with acoustic damping cloth.