CN204425642U - Loud speaker - Google Patents

Loud speaker Download PDF

Info

Publication number
CN204425642U
CN204425642U CN201520073637.3U CN201520073637U CN204425642U CN 204425642 U CN204425642 U CN 204425642U CN 201520073637 U CN201520073637 U CN 201520073637U CN 204425642 U CN204425642 U CN 204425642U
Authority
CN
China
Prior art keywords
loud speaker
leak holes
housing
phonate hole
magnetic circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201520073637.3U
Other languages
Chinese (zh)
Inventor
徐芸霞
蔡斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Microtech Changzhou Co Ltd
AAC Optoelectronic Changzhou Co Ltd
Original Assignee
AAC Optoelectronic Changzhou Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AAC Optoelectronic Changzhou Co Ltd filed Critical AAC Optoelectronic Changzhou Co Ltd
Priority to CN201520073637.3U priority Critical patent/CN204425642U/en
Application granted granted Critical
Publication of CN204425642U publication Critical patent/CN204425642U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a kind of loud speaker, establish the housing of spatial accommodation in comprising, be contained in the magnetic circuit system in described housing and be located at above described magnetic circuit system and for generation of the vibrational system of sound, the described housing sound be provided with for vibrational system being produced exports to the phonate hole outside described loud speaker, a back cavity is formed between described vibrational system and magnetic circuit system, described loud speaker is provided with the leak holes communicated with described back cavity, and is less than the area of the leak holes near described phonate hole away from the area of the leak holes of described phonate hole.The utility model carries out asymmetry compensation design when loudspeaker design to its leak holes, uneven away from the vibration of the large generation of acoustic resistance nearlyer phonate hole side, phonate hole side when can solve voice coil vibrations, the performance issues such as audio distortions.

Description

Loud speaker
[technical field]
The utility model relates to a kind of loud speaker, and particularly a kind of phonate hole is at the loud speaker of side.
Background technology
Common loud speaker is that the protecgulum before vibrating diaphragm arranges vocal hole, and the sound that loud speaker sends spreads out of before loud speaker through vocal hole.
Along with portable electric appts is as the development of mobile phone, MP3, MP4 etc., super-thin electronic equipment becomes a trend, and this sounding just requiring loud speaker is not above but in the side of loud speaker, obviously common loud speaker can not meet the demands.
The loud speaker vocal hole position of correlation technique, in frame side, so when voice coil vibrations, away from acoustic resistance closer phonate hole side large of phonate hole side vibration, can produce the performance issues such as the uneven and audio distortions of vibration.
Therefore how solving the performance issues such as the uneven and audio distortions of vibration that existing loud speaker produces in side due to phonate hole is industry problem demanding prompt solution.
Utility model content
The utility model mainly solves loud speaker because the vibration of phonate hole caused by housing side is uneven and the technical problem of audio distortions.
In order to solve the problems of the technologies described above, the utility model embodiment discloses a kind of loud speaker, it establishes the housing of spatial accommodation in comprising, be contained in magnetic circuit system in described housing and be located at above described magnetic circuit system and for generation of the vibrational system of sound, the described housing sound be provided with for vibrational system being produced exports to the phonate hole outside described loud speaker, a back cavity is formed between described vibrational system and magnetic circuit system, described loud speaker is provided with the leak holes communicated with described back cavity, and the area of the leak holes near described phonate hole is less than away from the area of the leak holes of described phonate hole.
In a preferred embodiment of the present utility model, described housing comprises a sidewall, and described phonate hole is arranged at this sidewall.
In a preferred embodiment of the present utility model, described housing comprises upper shell and forms the lower house of described spatial accommodation with this upper shell assembly, and this sidewall is arranged at described upper shell.
In a preferred embodiment of the present utility model, described loud speaker also comprises the frame of an assembly in described housing, and described magnetic circuit system and vibrational system assembly are in described frame.
In a preferred embodiment of the present utility model, described magnetic circuit system comprise the yoke of assembly bottom this frame, the assembly center magnet steel in this yoke, assembly in this yoke and around four spaced settings of described center magnet steel surrounding secondary magnet steel, be attached at the center pole piece of described center magnet steel upper surface and be attached at the consequent pole core of described secondary magnet steel upper surface.
In a preferred embodiment of the present utility model, described yoke assembly in the bottom of described frame, and is provided with the clearance space communicated with described back cavity between described yoke with described frame, this clearance space is described leak holes.
In a preferred embodiment of the present utility model, described frame is rectangular, and it comprises four corners, and described leak holes is arranged at this corner.
Compared to prior art, the loud speaker that the utility model provides is by carrying out asymmetry compensation design to described leak holes, the vibration imbalance produced greatly than the acoustic resistance of nearly phonate hole side away from phonate hole side acoustic resistance when can solve voice coil vibrations, the performance issues such as audio distortions, improve the performance of loud speaker.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the schematic diagram of the loud speaker that provides of the utility model away from the described leak holes of described vocal hole;
Fig. 2 is the schematic diagram of the loud speaker that provides of the utility model near the described leak holes of described vocal hole;
Fig. 3 is the three-dimensional exploded view of the loud speaker that the utility model provides.
Embodiment
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model relates to a kind of loud speaker, carries out targeted design to its leak holes.As shown in Figure 3, described loud speaker comprises upper shell 11 and lower house 15, described upper shell 11 forms the housing with receiving space with this lower house 15 assembly, collecting and the magnetic circuit system 13 in described housing and the vibrational system 12 be located at for generation of sound above described magnetic circuit system 13, the frame 14 of assembly in described housing, described magnetic circuit system 13 and vibrational system 12 assembly are in described frame 14.
Described upper shell 11 sound be provided with for vibrational system being produced exports to the phonate hole 111 outside described loud speaker 100, and this phonate hole 111 is preferably arranged on the sidewall of described housing, and this sidewall is arranged on this upper shell 11.Form a back cavity between described vibrational system 12 and described magnetic circuit system 13, described loud speaker 100 is provided with the leak holes 16 communicated with described back cavity.
Described vibrational system 12 comprises the voice coil loudspeaker voice coil 122 that edge is immobilizated in vibrating diaphragm in described frame 14 121 and drives described vibrating diaphragm 121 vibration sounding, described magnetic circuit system 13 comprise the yoke 133 of assembly bottom this frame 14, the center magnet steel 131 of assembly in this yoke 133, assembly in this yoke 133 and around four spaced settings of described center magnet steel surrounding secondary magnet steel 132, be attached at the center pole piece 134 of described center magnet steel 131 upper surface and be attached at the consequent pole core 135 of described secondary magnet steel 132 upper surface.
As depicted in figs. 1 and 2, leak holes 16 comprises four for the first leak holes 161, second leak holes the 162, three leak holes 163 and the 4th leak holes 164 by magnetic gap and external environment connect.Wherein said first leak holes 161 and the second leak holes 162 are positioned at away from described phonate hole 111 side, and described 3rd leak holes 163 and described 4th leak holes 164 are positioned near described phonate hole 111 side.
Wherein said first leak holes 161 and described 3rd leak holes 163 are corresponding symmetric position, and described second leak holes 162 and described 4th leak holes 164 are corresponding symmetric position.Because the first leak holes 161 and described second leak holes 162 are positioned at away from described phonate hole 111 side, so the area of described first leak holes 161 and described 3rd leak holes 163 is less than corresponding described second leak holes 162 and the area of described 4th leak holes 164 respectively.
There is congenital asymmetric defect in the side pronunciation device ante-chamber caused due to position, loud speaker side sounding, when described voice coil loudspeaker voice coil 122 vibrates, the acoustic resistance of the closer described phonate hole 171 side vibration of the acoustic resistance away from the vibration of described phonate hole 111 side is large, vibration can be caused uneven, produce the performance issues such as audio distortions.So the size by regulating described first leak holes 161, second leak holes 162, the 3rd leak holes 163 and the 4th leak holes 164 to reveal area, can regulate away from described phonate hole 111 side and the size near described phonate hole 111 side acoustic resistance, thus balanced remote is from described phonate hole 111 side and close described phonate hole 111 side acoustic resistance.In addition, by described first leak holes 161, described second leak holes 162 being moved on to than described 3rd leak holes 163 of correspondence and the 4th leak holes 164 position closer to described corner, also can play same effect, the vibration of described vibrating diaphragm 121 can be made more to balance, stablize.
Compared to prior art, the loud speaker that the utility model provides is by carrying out asymmetry compensation design to described leak holes 16, the vibration produced away from described phonate hole 111 side acoustic resistance is larger than the acoustic resistance near described phonate hole 111 side when described voice coil loudspeaker voice coil 122 vibrates can be solved uneven, the performance issues such as audio distortions, improve the performance of described loud speaker 100.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.

Claims (7)

1. a loud speaker, establish the housing of spatial accommodation in comprising, be contained in the magnetic circuit system in described housing and be located at above described magnetic circuit system and for generation of the vibrational system of sound, the described housing sound be provided with for vibrational system being produced exports to the phonate hole outside described loud speaker, a back cavity is formed between described vibrational system and magnetic circuit system, it is characterized in that, described loud speaker is provided with the leak holes communicated with described back cavity, and is less than the area of the leak holes near described phonate hole away from the area of the leak holes of described phonate hole.
2. loud speaker according to claim 1, is characterized in that, described housing comprises a sidewall, and described phonate hole is arranged at this sidewall.
3. loud speaker according to claim 2, is characterized in that, described housing comprises upper shell and forms the lower house of described spatial accommodation with this upper shell assembly, and this sidewall is arranged at described upper shell.
4. the loud speaker according to claim 1 or 3, is characterized in that, described loud speaker also comprises the frame of an assembly in described housing, and described magnetic circuit system and vibrational system assembly are in described frame.
5. loud speaker according to claim 4, it is characterized in that, described magnetic circuit system comprise the yoke of assembly bottom this frame, the assembly center magnet steel in this yoke, assembly in this yoke and around four spaced settings of described center magnet steel surrounding secondary magnet steel, be attached at the center pole piece of described center magnet steel upper surface and be attached at the consequent pole core of described secondary magnet steel upper surface.
6. loud speaker according to claim 5, is characterized in that, described yoke assembly in the bottom of described frame, and is provided with the clearance space communicated with described back cavity between described yoke with described frame, this clearance space is described leak holes.
7. loud speaker according to claim 4, is characterized in that, described frame is rectangular, and it comprises four corners, and described leak holes is arranged at described corner.
CN201520073637.3U 2015-02-02 2015-02-02 Loud speaker Active CN204425642U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520073637.3U CN204425642U (en) 2015-02-02 2015-02-02 Loud speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520073637.3U CN204425642U (en) 2015-02-02 2015-02-02 Loud speaker

Publications (1)

Publication Number Publication Date
CN204425642U true CN204425642U (en) 2015-06-24

Family

ID=53475967

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520073637.3U Active CN204425642U (en) 2015-02-02 2015-02-02 Loud speaker

Country Status (1)

Country Link
CN (1) CN204425642U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017161748A1 (en) * 2016-03-25 2017-09-28 乐视控股(北京)有限公司 User terminal
CN107613439A (en) * 2017-10-20 2018-01-19 维沃移动通信有限公司 The loudspeaker of a kind of electronic equipment and electronic equipment
WO2020056961A1 (en) * 2018-09-21 2020-03-26 歌尔股份有限公司 Circuit board, speaker, electronic device, and polarization compensating method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017161748A1 (en) * 2016-03-25 2017-09-28 乐视控股(北京)有限公司 User terminal
CN107613439A (en) * 2017-10-20 2018-01-19 维沃移动通信有限公司 The loudspeaker of a kind of electronic equipment and electronic equipment
CN107613439B (en) * 2017-10-20 2019-12-20 维沃移动通信有限公司 Electronic equipment and speaker of electronic equipment
WO2020056961A1 (en) * 2018-09-21 2020-03-26 歌尔股份有限公司 Circuit board, speaker, electronic device, and polarization compensating method

Similar Documents

Publication Publication Date Title
CN102065357B (en) Electromagnetic loudspeaker
CN203574855U (en) Loudspeaker module
CN202004956U (en) Acoustic generator
CN204425642U (en) Loud speaker
CN203747990U (en) Loudspeaker
CN205213033U (en) Long stroke speaker
CN205356670U (en) Mini loudspeaker
CN106162425A (en) Loudspeaker enclosure
CN203708465U (en) Loudspeaker module group
CN203574851U (en) Loudspeaker module
US10129654B2 (en) Miniature loudspeaker
CN204887448U (en) Loudspeaker
CN204069319U (en) Microphone device
CN203446022U (en) Loudspeaker module assembly
CN202818586U (en) Vibration loudspeaker
CN204119507U (en) A kind of loud speaker side acoustic aperture and a kind of loadspeaker structure
CN202759586U (en) Sounder
CN201893917U (en) Minitype acoustical generator
CN209642964U (en) A kind of speaker unit
CN203708469U (en) Loudspeaker module
CN203378030U (en) A sound-emitting apparatus
CN203775396U (en) Micro sound generator
CN203590437U (en) Micro loudspeaker
CN203747987U (en) Sounder
CN203708464U (en) Loudspeaker module group

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model