CN103905943A

CN103905943A - Earphone

Info

Publication number: CN103905943A
Application number: CN201210573959.5A
Authority: CN
Inventors: 陈皇妙
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2012-12-26
Filing date: 2012-12-26
Publication date: 2014-07-02
Also published as: TWI558222B; TW201431385A

Abstract

Provided is an earphone which comprises a shell and a speaker which is arranged in the shell. The shell comprises a rear cover and a front cover which covers the rear cover. A sound cavity is formed by the front cover and the rear cover via enclosing. The sound cavity is divided into a front cavity which is arranged at the front side of the speaker and a rear cavity which is arranged at the rear side of the speaker by the speaker. The front cover is provided with a sound hole which is used for enabling the front cavity to be communicated with the external environment. The earphone further comprises one separating plate which is arranged between the speaker and the front cover so that the front cavity is divided into a first cavity which is close to the speaker and a second cavity which is close to the front cover. The separating plate is provided with one through hole so that the first cavity and the second cavity are enabled to be communicated. The speaker is enabled to push air in the first cavity to vibrate by the separating plate so that sound is generated, and thus quality of earphone sound is improved.

Description

Earphone

Technical field

The present invention relates to a kind of earphone, relate in particular to a kind of PlayGear Stealth.

Background technology

Existing PlayGear Stealth generally includes housing and is arranged on the loudspeaker in housing.Described loudspeaker are ante-chamber and back cavity by the spatial separation in housing.Described housing has the bonnet that is positioned at the protecgulum of loudspeaker front side and is positioned at loudspeaker rear side.On protecgulum, be provided with sender in order to ante-chamber is connected with external environment.When loudspeaker are in the time working, the sound film being arranged on loudspeaker promotes the air vibration in ante-chamber and sounds.But due to the scrambling of protecgulum shape, air easily produces noise in ante-chamber internal vibration, thereby affect the quality of earphone output sound.

Summary of the invention

In view of this, be necessary to provide a kind of earphone that improves earphone output sound effect.

A kind of earphone, comprises housing and is arranged on the loudspeaker in housing.Housing comprises that bonnet and lid are located at the protecgulum on bonnet.Protecgulum and bonnet surround and form a sound chamber.Described loudspeaker are separated into sound chamber the back cavity that is positioned at the ante-chamber of loudspeaker front side and is positioned at loudspeaker rear side.On protecgulum, be provided with a sender for ante-chamber is connected with external environment.Described earphone further comprises a dividing plate, thereby described dividing plate is arranged on and between loudspeaker and protecgulum, ante-chamber is divided near the first cavity of loudspeaker and near the second cavity of protecgulum.Dividing plate is provided with a through hole to be communicated with the first cavity and the second cavity.

In above-mentioned earphone, by dividing plate being set between loudspeaker and protecgulum, and in dividing plate center, through hole is set, described dividing plate makes loudspeaker promote the air vibration in the first cavity and sounds, then sound propagates in the second cavity by the through hole at dividing plate center, and is delivered to external environment from sender.The shape of described dividing plate is not affected by the profile of earphone can substantially and arranges arbitrarily, therefore can limit the shape in sound chamber, thereby the quality of the output sound of the scrambling of avoiding earphone protecgulum shape to earphone impacts.

Accompanying drawing explanation

The three-dimensional assembly diagram of the earphone that Fig. 1 provides for the embodiment of the present invention.

Fig. 2 is the exploded view of earphone shown in Fig. 1.

Fig. 3 is that earphone shown in Fig. 1 is along the cutaway view of III-III.

Main element symbol description

Earphone	100
		Housing	10
Bonnet	11
		Cavity portion	111
Grip part	112
		Pore	113
Conduit	114
		Ringwall	115
The first wall portion	116
		The second wall portion	117
Protecgulum	12
		Antetheca	121
Sidewall	122
		Sender	123
Dividing plate	124
		Through hole	1241
Flanging	1242
		Ante-chamber	131
The first cavity	1311
		The second cavity	1312
Back cavity	132
		Loudspeaker	20
Magnet frame	21
		Magnet	22
Washer	23
		Voice coil loudspeaker voice coil	24
Retainer ring	25
		Sound film	26

Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.

Embodiment

Referring to diagram, earphone of the present invention is further detailed.

The earphone 100 that Fig. 1 and Fig. 2 provide for the embodiment of the present invention.This earphone 100 comprises housing 10 and is arranged on the loudspeaker 20 in housing 10.In the present embodiment, this earphone 100 is an auris dextra earphone, can be positioned in the auris dextra of people's ear and use.

Please also refer to Fig. 3, described housing 10 comprises bonnet 11 and is arranged on bonnet 11 front sides and covers the protecgulum 12 being located on bonnet 11.Bonnet 11 and protecgulum 12 surround and form a sound chamber.Described loudspeaker 20 are arranged among sound chamber, and sound chamber is separated into the back cavity 132 that is positioned at the ante-chamber 131 of loudspeaker 20 front sides and is positioned at loudspeaker 20 rear sides.

Described bonnet 11 comprises with the cavity portion 111 of protecgulum 12 combinations and by the outward extending grip part 112, outside of described cavity portion 111.Described cavity portion 111 is roughly tapered, is equipped with some pores 113, so that the back cavity of housing 10 132 is connected with external environment in cavity portion 111.Described grip part 112 is elongated rod-shaped, extends to form along the direction contrary with gas port 113 from the outside of cavity portion 111.On described grip part 112, be provided with a conduit 114.Described conduit 114 wears wherein so that loudspeaker 20 are electrically connected with outside headset plug for a wire.

The cavity portion 111 of described bonnet 11 convexes with ringwall 115 towards a side of protecgulum 12, and the inward flange of described ringwall 115 is rounded, and the outward flange of ringwall 115 is substantially oblong-shaped.Ringwall 115 is formed with the first wall portion 116 and the second wall portion 117 separately in a side.Described the first wall portion 116 is positioned at the inner side of the second wall portion 117, for laying loudspeaker 20.This second wall portion 117 is positioned at the outside of the first wall portion 116, for combining with protecgulum 12.

Described loudspeaker 20 entirety are rounded, and it is arranged on the ringwall 115 of cavity portion 111 of bonnet 11, loudspeaker 20 just facing to protecgulum 12.In the present embodiment, described loudspeaker 20 adopt moving-coil type loudspeaker.Described loudspeaker 20 comprise magnet frame 21, be arranged on magnet 22 in magnet frame 21, be arranged on washer 23 on magnet 22, be arranged on the voice coil loudspeaker voice coil 24 of magnet 22 peripheries, the sound film 26 that is arranged on the outer peripheral retainer ring 25 of magnet frame 21 and is fixedly connected with retainer ring 25 with voice coil loudspeaker voice coil 24.A side contrary with magnet 22 of magnet frame 21 is fixed with circuit board.Described magnet frame 21 is roughly bowl-shape, and it comprises substrate 211 and the upwardly extending side plate 212 in periphery by substrate 211.Substrate 211 and side plate 212 surround and form host cavity 213.Within magnet 22 and washer 23 are contained in host cavity 213.It is cylindric that magnet 22 is roughly, and it is sticked on the upper surface of substrate 211.Washer 23 is rounded laminar, and it is attached on the upper surface of magnet 22.Described magnet frame 21, magnet 22 and washer 23 arrange with one heart, and the external diameter of magnet 22 and washer 23 is less than the diameter of the interior host cavity 213 of magnet frame 21, thereby make to form an annular gap between the side plate 212 of magnet 22, washer 23 and magnet frame 21.Described voice coil loudspeaker voice coil 24 is cylindric, and its upper end is bonded on the lower surface of sound film 26, and its lower end is arranged in the gap of described annular.

The sidewall 122 that described protecgulum 12 has the antetheca relative with loudspeaker 20 121 and extended towards bonnet 11 by antetheca 121 peripheries.This antetheca 121 is roughly rounded and middle part is outwardly a little.On antetheca 121, be provided with sender 123, so that ante-chamber 131 is connected with external environment.In the present embodiment, described protecgulum 12 has the end of a convergent, and described sender 123 is arranged on the described end position of protecgulum 12, and when the external ear that is placed in people's ear when earphone uses, described sender is relative with the entrance of the external auditory meatus in external ear.In the present embodiment, described sender 123 is track shape.As required, on sender 123, one deck guard can also be set, to prevent that extraneous foreign matter from entering into the ante-chamber 131 of housing 10 from sender 123.Described guard can be made up of nylon wire or adhesive-bonded fabric.Between protecgulum 12 and loudspeaker 20, be provided with dividing plate 124, described dividing plate 124 is separated into ante-chamber 131 near the first cavity 1311 of loudspeaker 20 and the second cavity 1312 of close protecgulum 12.The center of dividing plate 124 is provided with a through hole 1241 to be communicated with the first cavity 1311 and the second cavity 1312.In the present embodiment, described dividing plate 124 is towards the direction projection of protecgulum 12.The edge of dividing plate 124 extends outward a flanging 1242, and described flanging 1242 lids are located at the surface of loudspeaker 20.As required, described dividing plate 124 can be made up of metal material.The pore size of the through hole 1241 at dividing plate 124 centers at 1.5mm between 2.5mm.In the present embodiment, described dividing plate 124 is made up of stainless steel, and the aperture of the through hole 1241 at dividing plate 124 centers is 1.8mm.

In assembling, when above-mentioned earphone 100, loudspeaker 20 are arranged on the ringwall 115 of cavity portion 111 of bonnet 11, and the rear end of the sidewall 122 of protecgulum 12 is set in ringwall 115 peripheral of cavity portion 111 and combines with cavity portion 111.Antetheca 121 and loudspeaker 20 vis-a-vis of protecgulum 12, described sender 123 is arranged on the marginal position of antetheca 121 and is inclined to set with respect to loudspeaker 20., the central axis X of loudspeaker 20 is obliquely installed with respect to the central axis Y of sender 123.As required, the angle between the central axis X of loudspeaker 20 and the central axis Y of sender 123 is acute angle.Preferably, the angle between the central axis X of loudspeaker 20 and the central axis Y of sender 123 at 15 degree between 75 degree.

When the loudspeaker 20 of earphone 100 are during in work, described loudspeaker 20 promote the air vibration in the first cavity 1311 of ante-chamber 131 and produce sound.Described sound is delivered in the second cavity 1312 through the through hole 1241 of dividing plate 124 centers, then propagates into external environment through the sender 123 of protecgulum 12.Due to the existence of dividing plate 124, the main air that promotes of loudspeaker 20 is in the interior generation vibration of the first cavity 1311.Therefore, the scrambling of described protecgulum 12 shapes is not easy to have influence on the Vibration Condition of air, thereby improves the quality of earphone 100 output sounds.In addition, when the angle between the central axis Y of sender 123 and the central axis X of loudspeaker 20 at 15 degree between 75 degree time, the shape of the protecgulum 12 of this earphone 100 can be better and the respective outer side edges of the external ear of human body, make the more suitably entrance to external auditory meatus that should external ear of sender 123 on this protecgulum 12, be conducive to sound and enter in external auditory meatus from sender 123 better, promoted the quality of the sound that user hears.Because earphone 100 of the present invention can obtain preferably frequency characteristic, therefore can provide more natural sound impression.

Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection range that all should belong to the claims in the present invention with distortion.

Claims

1. an earphone, comprise housing and be arranged on the loudspeaker in housing, housing comprises that bonnet and lid are located at the protecgulum on bonnet, protecgulum and bonnet surround and form a sound chamber, described loudspeaker are separated into sound chamber the back cavity that is positioned at the ante-chamber of loudspeaker front side and is positioned at loudspeaker rear side, on protecgulum, be provided with sender for ante-chamber is connected with external environment, it is characterized in that, described earphone further comprises a dividing plate, thereby described dividing plate is arranged between loudspeaker and protecgulum and ante-chamber is divided near the first cavity of loudspeaker and the second cavity of close protecgulum, dividing plate is provided with a through hole to be communicated with the first cavity and the second cavity.

2. earphone as claimed in claim 1, it is characterized in that, described protecgulum has the end of a convergent, and described sender is arranged on the described end position of protecgulum, when the external ear that is placed in people's ear when earphone uses, described sender is relative with the entrance of the external auditory meatus in external ear.

3. earphone as claimed in claim 2, is characterized in that, described sender ovalize runway shape.

4. earphone as claimed in claim 1, is characterized in that, described dividing plate is made up of metal material.

5. earphone as claimed in claim 4, is characterized in that, described dividing plate is made up of stainless steel material.

6. earphone as claimed in claim 1, is characterized in that, the pore size of described dividing plate centre bore at 1.5mm between 2.5mm.

7. earphone as claimed in claim 1, is characterized in that, the pore size of described dividing plate centre bore is 1.8mm.

8. earphone as claimed in claim 1, is characterized in that, described dividing plate is towards the direction projection of protecgulum.

9. earphone as claimed in claim 1, is characterized in that, the edge of described dividing plate extends outward a flanging, and described flanging lid is located on the surface of loudspeaker.

10. earphone as claimed in claim 1, is characterized in that, described bonnet comprises the cavity portion of being combined with protecgulum and the outward extending grip part, outside by described cavity portion, in described cavity portion, is provided with pore so that back cavity is connected with external environment.