CN219893437U

CN219893437U - Horn cavity structure and earphone main body

Info

Publication number: CN219893437U
Application number: CN202321214780.0U
Authority: CN
Inventors: 杨志豪; 孟仁庆; 陈晴; 李少亮
Original assignee: Guangdong Takstar Electronic Co ltd
Current assignee: Guangdong Takstar Electronic Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-10-24
Anticipated expiration: 2033-05-18

Abstract

The utility model relates to the technical field of earphones, in particular to a horn cavity structure and an earphone main body. The horn cavity structure comprises a horn seat, a horn and a horn middle cavity; the loudspeaker middle cavity is fixedly arranged at the rear end of the loudspeaker seat, and the loudspeaker is arranged between the loudspeaker middle cavity and the loudspeaker seat; and a sound absorbing piece is arranged between the horn middle cavity and the horn, and the sound absorbing piece compresses and fixes the horn. The loudspeaker cavity structure can prevent resonance from being generated, and can absorb sound waves on the back of the loudspeaker at the same time, so that the audio quality is improved. The earphone main body comprises an earmuff, a horn seat, a horn and a horn middle cavity, wherein the horn seat, the horn and the horn middle cavity form the horn cavity structure, and the earmuff is buckled on the rear end of the horn seat. The horn seat, the horn and the horn middle cavity in the earphone main body adopt the structural design of the horn cavity, and the sound field effect is good.

Description

Horn cavity structure and earphone main body

Technical Field

The utility model relates to the technical field of earphones, in particular to a horn cavity structure and an earphone main body.

Background

The earphone is used as an audio conversion unit, can convert the received electric signals into sound waves, can independently enjoy or isolate the sound of the surrounding environment without affecting other people, and has the characteristics of convenience in use, portability and the like. The good sound field environment of earphone can bring extremely wonderful experience to the user, wherein, not only requires the earphone to have good sound insulation function, still needs to guarantee the good noise reduction effect of earphone self.

Headphones are conventionally used in the market at present, wherein the loudspeaker of the cavity structure often causes resonance of the middle cavity, and meanwhile, harmonic waves are generated on the back surface of the loudspeaker, so that standing waves form noise or buzzing sounds, and extremely bad use experience is brought to users.

Disclosure of Invention

The utility model aims to solve the problems that a loudspeaker is easy to cause middle cavity resonance and standing waves are easy to generate in the traditional earphone loudspeaker cavity structure, and provides a loudspeaker cavity structure. This loudspeaker cavity structure sets up between loudspeaker middle chamber and loudspeaker and inhale sound spare, can prevent effectively that resonance from producing to can absorb the sound wave at loudspeaker back, prevent to produce standing wave.

The utility model also aims to provide the earphone main body. The horn seat, the horn and the horn middle cavity in the earphone main body adopt the structural design of the horn cavity, so that resonance and standing waves can be prevented from being generated, and the sound field effect is good.

The aim of the utility model is achieved by the following technical scheme.

A loudspeaker cavity structure comprises a loudspeaker seat, a loudspeaker and a loudspeaker middle cavity; the loudspeaker middle cavity is fixedly arranged at the rear end of the loudspeaker seat, and the loudspeaker is arranged between the loudspeaker middle cavity and the loudspeaker seat; and a sound absorbing piece is arranged between the horn middle cavity and the horn, and the sound absorbing piece compresses and fixes the horn.

In a preferred embodiment, the horn cavity is secured to the rear end of the horn seat by a screw lock.

In a preferred embodiment, the horn seat is provided with a horn positioning groove, and the horn is accommodated in the horn positioning groove.

In a preferred embodiment, the side of the horn facing the horn cavity is provided with a sound absorbing member positioning groove, and the sound absorbing member is accommodated in the sound absorbing member positioning groove.

In a preferred embodiment, the sound absorbing member and the speaker middle cavity are respectively provided with a first wiring guide hole and a second wiring guide hole for receiving a speaker connecting wire therethrough.

In a preferred embodiment, any of the above horn cavity structures, the sound absorbing member comprises sound absorbing cotton.

An earphone main body comprises an earmuff, a horn seat, a horn and a horn middle cavity, wherein the horn seat, the horn and the horn middle cavity form a horn cavity structure according to any one of the above, and the earmuff is covered on the rear end of the horn seat;

the front end of the loudspeaker seat is provided with a sound transmission hole corresponding to the loudspeaker, and the loudspeaker is connected with a loudspeaker connecting wire.

In a preferred embodiment, the earmuff is secured to the horn mount by a screw lock.

In a preferred embodiment, the front end of the horn seat is provided with an ear cap.

In a preferred embodiment, a battery is disposed between the ear shell and the speaker cavity, the battery being electrically connected to the speaker.

In a preferred embodiment, any one of the above earphone bodies, tuning holes are formed in the periphery of the sound transmission hole on the speaker seat, and tuning nets are arranged on the tuning holes.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

according to the loudspeaker cavity structure, the sound absorbing piece is arranged between the loudspeaker middle cavity and the loudspeaker, so that the loudspeaker middle cavity presses the loudspeaker from the back through the sound absorbing piece and fixes the loudspeaker, resonance is prevented from being generated, meanwhile, sound waves on the back of the loudspeaker can be absorbed, standing waves are prevented from being generated, sound fields are prevented from being disturbed due to resonance and standing waves generated in the using process of the earphone, and the audio quality is improved.

According to the earphone main body, the loudspeaker seat, the loudspeaker and the loudspeaker middle cavity adopt the loudspeaker cavity structural design, resonance and standing waves can be prevented from being generated, the sound field effect is good, and the use experience is high. Moreover, be provided with tuning net on the loudspeaker seat, can adjust the sound wave height of earphone, further improve sound field effect and use experience.

Drawings

FIG. 1 is a schematic perspective view of a speaker cavity structure according to the present utility model in an embodiment;

FIG. 2 is a schematic diagram of an exploded view of a horn cavity structure according to the present utility model in an embodiment;

FIG. 3 is a schematic cross-sectional view of a horn cavity structure of the present utility model in an exemplary embodiment;

fig. 4 is an exploded view of the earphone body according to the present utility model in an embodiment.

The drawings are marked: 1-loudspeaker seat, 101-loudspeaker constant head tank, 102-sound transmission hole, 103-tuning hole, 2-loudspeaker, 201-connector lug, 202-sound absorbing piece constant head tank, 3-sound absorbing piece, 301-first wiring guide hole, 4-loudspeaker middle cavity, 401-second wiring guide hole, 5-earmuff, 6-loudspeaker connecting wire, 7-earmuff, 701-avoidance through hole, 8-battery, 9-tuning net, 10-screw, 11-glue fork.

Detailed Description

The technical scheme of the present utility model is described in further detail below with reference to specific examples and drawings, but the scope and embodiments of the present utility model are not limited thereto.

In the description of the specific embodiments, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, or that the inventive product is conventionally put in place when used, and the terms "first," "second," and the like are merely for convenience in describing the present utility model and for simplifying the description, and do not indicate or imply that the structures or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model, but rather as indicating or suggesting a relative importance.

Unless specifically stated or limited otherwise, the terms "mounted," "configured," "connected," "secured," and the like should be construed broadly, as they may be either fixedly connected, detachably connected, or integrally formed; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

The speaker cavity structure of the utility model can be a speaker cavity structure of audio equipment such as an earphone main body, a sound main body and the like. Referring to fig. 1 to 3, the speaker cavity structure includes a speaker seat 1, a speaker 2, and a speaker cavity 4.

The horn seat 1 is used as a supporting base body to support the horn 2 and the horn middle cavity 4. The horn middle cavity 4 is fixedly arranged at the rear end of the horn seat 1, and in a preferred embodiment, the horn middle cavity 4 is locked and fixed at the rear end of the horn seat 1 through a screw 10, or may be fixed at the rear end of the horn seat 1 in a clamping, riveting or other manner. In the illustrated embodiment, the screw holes corresponding to each other are formed in the speaker middle cavity 4 and the speaker seat 1, and after the speaker middle cavity 4 and the speaker seat 1 are assembled and positioned, the screws 10 are locked with the screw holes corresponding to the speaker middle cavity 4 and the speaker seat 1, so that the speaker middle cavity 4 and the speaker seat 1 are fixedly assembled.

The horn middle cavity 4 is provided with a cavity wall extending towards the horn seat 1 and is enclosed to form a cavity, the horn seat 1 is provided with an installation positioning groove correspondingly matched with the cavity wall of the horn middle cavity 4, the fixed connection between the horn middle cavity 4 and the horn seat 1 is the arrangement of the horn middle cavity 4 buckled on the horn seat 1, and the cavity wall of the horn middle cavity 4 is correspondingly assembled into the installation positioning groove, so that a closed accommodating cavity structure is formed between the horn middle cavity 4 and the horn seat 1.

The horn 2 is disposed between the horn middle cavity 4 and the horn seat 1, specifically, in the accommodating cavity between the horn middle cavity 4 and the horn seat 1. The horn 2, the horn middle cavity 4 and the horn seat 1 are positioned in a relatively fixed position. In the design of earphone, about earphone main part adopts the holding chamber between loudspeaker middle chamber 4 and loudspeaker seat 1, and loudspeaker 2 sets up the structural design in the holding intracavity, can make about the earphone main part cavity degree of balance unanimous, does not receive outside spare part influence, ensures about the sound field effect of earphone main part.

Wherein, have loudspeaker constant head tank 101 on the loudspeaker seat 1, specifically, this loudspeaker constant head tank 101 is that the rear end face of loudspeaker seat 1 is enclosed to constitute towards the bellied cell wall in loudspeaker middle chamber 4, and this loudspeaker constant head tank 101 corresponds the recess of adaptation with loudspeaker 2, loudspeaker 2 location accommodation is in this loudspeaker constant head tank 101, realizes spacing to loudspeaker 2 by the cell wall of this loudspeaker constant head tank 101 in the radial direction, makes loudspeaker 2 in the radial fixed setting of relative loudspeaker middle chamber 4 and loudspeaker seat 1. Furthermore, the horn middle cavity 4 and the horn seat 1 compress tightly and limit the horn 2 in the front-back axial direction, so that the horn 2 is fixedly positioned and arranged relative to the horn middle cavity 4 and the horn seat 1 in the front-back axial direction.

In a preferred embodiment, a sound absorbing member 3 is provided between the horn cavity 4 and the horn 2, and the horn cavity 4 is pressed and fixed to the horn 2 by the sound absorbing member 3. Specifically, the sound absorbing member 3 is a soft sound absorbing material, and is optionally but not limited to sound absorbing cotton. When the loudspeaker cavity structure is assembled, firstly, the loudspeaker 2 is positioned and placed in the loudspeaker positioning groove 101 of the loudspeaker seat 1, then the sound absorbing piece 3 is tightly attached to the loudspeaker 2 and placed on one side, away from the loudspeaker seat 1, of the loudspeaker 2, then the inner side of the cavity of the loudspeaker middle cavity 4 is pressed on the sound absorbing piece 3 towards the sound absorbing piece 3, and then the loudspeaker middle cavity 4 and the loudspeaker seat 1 are fixed, so that the loudspeaker 2 is pressed and fixedly arranged in the front-rear axial direction. Moreover, inhale the sound piece 3 and hug closely the setting at loudspeaker 2 rear end, not only make loudspeaker cavity 4 push down loudspeaker 2 and fixed loudspeaker 2 from the back through inhaling sound piece 3, avoid loudspeaker cavity 4 direct to compress tightly and fixed loudspeaker 2 and cause the damage of corresponding loudspeaker 2, and can prevent to produce resonance with loudspeaker cavity 4 etc. of loudspeaker 2 direct contact, can absorb the sound wave at loudspeaker 2 back simultaneously, prevent to produce standing wave, avoid producing resonance, standing wave and disturbing sound field in the audio equipment use, improve audio quality.

In some preferred embodiments, the side of the horn 2 facing the horn cavity 4 is provided with a sound absorbing member positioning groove 202, and specifically, the groove wall of the sound absorbing member positioning groove 202 is formed by extending the periphery of the shell of the horn 2 towards the horn cavity 4 in a protruding manner. The sound absorbing member positioning groove 202 is correspondingly matched with the sound absorbing member 3 in shape and size, the sound absorbing member 3 can be positioned and accommodated in the sound absorbing member positioning groove 202, and the sound absorbing member 3 is positioned and placed on the sound absorbing member positioning groove 202 during assembly to install and fix the loudspeaker middle cavity 4, so that the sound absorbing member 3 can be positioned and arranged relative to the loudspeaker 2, displacement relative to the loudspeaker 2 during installation and use is avoided, and the compression fixation and sound absorbing effect of the sound absorbing member 3 to the loudspeaker 2 are ensured.

In addition, in the complete assembly of the audio device, the loudspeaker 2 may be externally connected to the loudspeaker connection line 6 to connect with a power source or a signal source, ensuring the realization of the function. Specifically, the horn 2 is provided with a connector lug 201 for connecting the horn connecting wire 6, and the connector lug 201 is specifically provided on the rear end of the horn 2. In the preferred embodiment, the sound absorbing member 3 has a first wire guide hole 301 corresponding to the connector lug 201 of the horn 2, and the horn cavity 4 has a second wire guide hole 401 corresponding to the connector lug 201 of the horn 2, and in the particular embodiment shown, the connector lug 201, the first wire guide hole 301 and the second wire guide hole 401 are concentrically disposed.

When the speaker connection wire 6 is assembled, one end of the speaker connection wire 6 is connected to the connector lug 201, and the other end sequentially passes through the second connection guide hole 401 and the first connection guide hole 301 to be externally connected with a power source or a signal source.

In other preferred embodiments, the connector lug 201 on the horn 2 is provided protruding from the rear end of the horn 2, and is located in the sound absorbing member positioning groove 202, specifically protruding with respect to the rear end of the horn 2, and the first connector guide hole 301 is designed to correspond to and fit into the connector lug 201. When the sound absorbing member 3 is placed in the sound absorbing member positioning groove 202, the first wiring guide hole 301 and the connector lug 201 are further positioned and sleeved on the connector lug 201, so that the positioning and placing effect of the sound absorbing member 3 relative to the loudspeaker 2 is further improved.

Example two

The earphone body of the present utility model may be an earphone body of a headphone or an earphone body of a plug-in type headphone. In the particular embodiment shown, an earphone body with headphones is shown. Specifically, referring to fig. 4, the earphone body of the present utility model includes an ear shell 5, a speaker seat 1, a speaker 2, and a speaker cavity 4. The horn seat 1, the horn 2 and the horn cavity 4 form a horn cavity structure as in the first embodiment, and the earmuff 5 is fixed on the rear end of the horn seat 1 and covers the horn cavity 4 and the horn 2.

The earmuff 5 may be fastened and fixed on the rear end of the horn seat 1 by a screw 10, or may be fastened and riveted on the rear end of the horn seat 1. In the illustrated embodiment, the ear shell 5 and the speaker seat 1 have corresponding screw holes, and after the ear shell 5 and the speaker seat 1 are assembled and positioned, the screw 10 is screwed and locked with the screw holes on the ear shell 5 and the speaker seat 1, so that the ear shell 5 and the speaker seat 1 are assembled fixedly. The earmuff 5 has a rear cavity, and the cavity opening of the earmuff 5 faces to the rear end of the horn seat 1 and is fixed on the horn seat 1, so that the horn 2 and the horn middle cavity 4 are accommodated in the rear cavity of the earmuff 5.

In addition, the front end of the speaker seat 1 is provided with a sound transmission hole 102 corresponding to the speaker 2, and the sound transmission hole 102 is specifically a mesh array structure hollowed out on the middle part of the speaker seat 1, and specifically can be a mesh array in various forms and corresponds to the front end of the speaker 2. When in use, sound waves emitted by the loudspeaker 2 penetrate through the sound transmission holes 102 on the loudspeaker seat 1, so that the sound is transmitted outwards.

Moreover, loudspeaker 2 is connected with loudspeaker connecting wire 6, can connect loudspeaker 2 and earphone core, realizes signal source transmission and control. Wherein, one end of the speaker connection wire 6 is connected to the connector lug 2 of the speaker 2, the speaker connection wire 6 is specifically selected but not limited to a 2-core enameled wire, and the connector lug 2 has two wire connection points, two core wires of the 2-core enameled wire are respectively connected with the two wire connection points, and the other end of the 2-core enameled wire is penetrated from the first connection guide hole 301 of the sound absorbing member 3 and the second connection guide hole 401 of the speaker middle cavity 4 and is connected to the earphone core.

In a further preferred embodiment, the earphone body is provided with a battery 8, the battery 8 is optionally but not limited to a lithium battery, and the battery 8 may be electrically connected to the speaker 2 and the movement as a power source for providing electrical power support for the operation of the speaker 2 and the movement. In particular, the battery 8 is accommodated between the ear shell 5 and the horn central cavity 4, and in some preferred embodiments, the battery 8 may be fixed to the rear cavity inner end of the ear shell 5 by gluing or the like.

In a further preferred embodiment, the earphone body shown is an earphone body of a headphone, the front end of the horn base 1 being provided with an ear cap 7. The ear cap 7 is specifically fixed on the front end of the speaker seat 1, and the middle part of the ear cap 7 is provided with a avoidance through hole 701 corresponding to the sound transmission hole 102 of the speaker seat 1. When the earphone is worn, the earmuff 7 is contacted and attached to the face of the periphery of the ear, so that the earphone is comfortable to wear, sound waves emitted by the loudspeaker 2 can pass through the avoidance through hole 701 to be transmitted into the ear of a person after passing through the sound transmission hole 102, and the earmuff 7 is tightly attached to the face to prevent sound leakage and can adjust the height of the sound waves, so that the sound field effect is improved.

In an alternative embodiment, the earphone body shown is an earphone body of a headband earphone, which earphone body may be connected to the headband using a glue fork 11. Specifically, be provided with the connecting axle on the tip of gluing fork 11 and rotatable wear to locate in the auricle 5, realize rotatable coupling with the earphone main part, make the earphone main part can be relative gluing fork 11 rotation regulation to satisfy different user demands.

Example III

As shown in fig. 4, in the earphone body of the present embodiment, the tuning hole 103 is provided on the speaker seat 1.

Specifically, the tuning hole 103 is provided on the outer peripheral side of the sound transmission hole 102. And when the earphone body is an earphone body of a headband earphone and is provided with the earmuff 7, the tuning hole 103 is correspondingly positioned in the front-rear axial range of the avoidance through hole 701 of the earmuff 7.

In addition, laid tuning net 9 on tuning hole 103, this tuning net 9 specifically covers tuning hole 103 and sets up, and tuning net 9 can be adjusted the sound wave height that loudspeaker 2 produced, further improves sound field effect and use experience.

The above embodiments are merely preferred embodiments of the present utility model and only the technical solutions of the present utility model have been described in further detail, but the above description is illustrative, not exhaustive, and is not limited to the disclosed embodiments, the scope and implementation of the present utility model are not limited thereto, and any changes, combinations, deletions, substitutions or modifications made without departing from the spirit and principles of the present utility model are included in the scope of the present utility model.

Claims

1. The loudspeaker cavity structure is characterized by comprising a loudspeaker seat, a loudspeaker and a loudspeaker middle cavity; the loudspeaker middle cavity is fixedly arranged at the rear end of the loudspeaker seat, and the loudspeaker is arranged between the loudspeaker middle cavity and the loudspeaker seat; and a sound absorbing piece is arranged between the horn middle cavity and the horn, and the sound absorbing piece compresses and fixes the horn.

2. The horn cavity structure of claim 1, wherein the horn cavity is secured to the rear end of the horn mount by screw locking.

3. The horn cavity structure of claim 1, wherein the horn seat has a horn positioning slot therein, and the horn is received in the horn positioning slot.

4. The horn cavity structure of claim 1, wherein the side of the horn facing the horn cavity has a sound absorbing member positioning slot therein, the sound absorbing member being received in the sound absorbing member positioning slot.

5. The horn cavity structure according to claim 1, wherein the sound absorbing member and the horn cavity are provided with a first wiring guide hole and a second wiring guide hole for receiving a horn connecting wire therethrough, respectively.

6. The horn cavity structure of any one of claims 1-5, wherein the sound absorbing member comprises sound absorbing cotton.

7. An earphone main body, which is characterized by comprising an earmuff, a horn seat, a horn and a horn middle cavity, wherein the horn seat, the horn and the horn middle cavity form a horn cavity structure as claimed in any one of claims 1-6, and the earmuff is covered on the rear end of the horn seat;

8. The earphone body of claim 7, wherein the front end of the speaker seat is provided with an ear cap.

9. The earphone body of claim 7, wherein a battery is disposed between the earmuff and the speaker cavity, the battery being electrically connected to the speaker.

10. The earphone body according to any one of claims 7-9, wherein tuning holes are formed in the speaker seat and around the sound transmission holes, and tuning nets are arranged in the tuning holes.