CN107659874B - Electroacoustic transducer with magnetic circuit system - Google Patents
Electroacoustic transducer with magnetic circuit system Download PDFInfo
- Publication number
- CN107659874B CN107659874B CN201710660066.7A CN201710660066A CN107659874B CN 107659874 B CN107659874 B CN 107659874B CN 201710660066 A CN201710660066 A CN 201710660066A CN 107659874 B CN107659874 B CN 107659874B
- Authority
- CN
- China
- Prior art keywords
- shell
- magnetic circuit
- circuit system
- lower shell
- magnetic
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention relates to an electroacoustic transducer with a magnetic circuit system, which comprises a shell, a front cover, a vibration system and the magnetic circuit system, wherein the shell is formed by connecting an upper shell with a lower shell up and down, a guide groove matched with the upper end of the lower shell is formed in the bottom of the upper shell, the upper end of the lower shell is movably connected in the guide groove, a locking mechanism is further arranged between the lower shell and the upper shell, the front cover is detachably connected on the upper shell, the vibration system is arranged in the upper shell, the vibration system consists of a vibrating diaphragm and a voice coil connected to the lower side of the vibrating diaphragm, the magnetic circuit system is arranged in the lower shell, a mounting frame is sleeved outside the magnetic circuit system, the magnetic circuit system is connected with the lower shell through the mounting frame, and a positioning and clamping mechanism is arranged between the mounting frame and the lower shell. This design can finely tune the installation space of casing inside according to actual conditions, has played the effect that increases practical properties.
Description
Technical Field
The invention relates to the electroacoustic field, in particular to an electroacoustic transducer with a magnetic circuit system.
Background
The electroacoustic transducer in the prior art comprises a vibration system, a magnetic circuit system and a shell for accommodating and fixing the vibration system and the magnetic circuit system. In general, the sound hole of the rear cavity is arranged on the side wall of the shell, which tends to increase the thickness of the side wall of the shell, and the volume of the magnetic circuit system is reduced under the condition that the volume of the electroacoustic transducer is fixed, so that the acoustic energy of the electroacoustic transducer is limited. Therefore, there is a need for improvements in electroacoustic transducers of such conventional construction to improve the acoustic performance of the electroacoustic transducer.
Disclosure of Invention
The invention aims to provide an electroacoustic transducer, which can increase the volume of a magnetic circuit system, improve the magnetic performance of the electroacoustic transducer and increase the power of the electroacoustic transducer under the condition that the volume of the electroacoustic transducer is fixed.
In order to solve the technical problems, the invention provides an electroacoustic transducer with a magnetic circuit system, which comprises
The shell is formed by connecting an upper shell and a lower shell up and down, a guide groove matched with the upper end of the lower shell is arranged at the bottom of the upper shell, the upper end of the lower shell is movably connected in the guide groove, a locking mechanism is arranged between the lower shell and the upper shell,
A front cover detachably connected to the upper case,
The vibration system is arranged in the upper shell and consists of a vibrating diaphragm and a voice coil connected to the lower side of the vibrating diaphragm,
The magnetic circuit system, magnetic circuit system set up in the inferior valve, the outside cover of magnetic circuit system be equipped with the mounting bracket, magnetic circuit system pass through the mounting bracket and link to each other with inferior valve, mounting bracket and inferior valve between be provided with location chucking mechanism.
Further: the locking mechanism comprises a locking bolt and a threaded hole formed in the outer side wall of the lower end of the upper shell, and the locking bolt penetrates through the threaded hole to be connected with the lower shell.
Still further: the magnetic circuit system is of a double-magnetic-circuit structure and comprises an inner magnetic circuit at the center, an outer magnetic circuit at the periphery and a lower magnetic-conducting plate positioned at the lower side.
Still further: the magnetic circuit system is of a rectangular structure, a rectangular magnetic gap for accommodating the voice coil is formed, four sound holes formed by material removal are formed in the positions, located at four corners of the rectangular magnetic gap, of the lower magnetic conductive plate, and the sound holes are formed along the magnetic gap.
Still further: the positioning clamping mechanism comprises a groove formed in the inner side wall of the lower end of the lower shell, a hemispherical clamping groove formed in the outer side wall of the mounting frame, a spherical clamping head and a spring, wherein the spherical clamping head is connected in the groove through the spring, and the spherical clamping head is clamped into the hemispherical clamping groove under the action of the spring.
After the structure is adopted, compared with the traditional structure, the invention has the advantages that the sound holes formed by material removal are arranged at the positions corresponding to the corners of the rectangular magnetic gaps on the lower magnetic conductive plate, so that the sound holes do not occupy the thickness of the side wall, the volume of the magnetic circuit system is increased, the magnetic performance of the electroacoustic transducer is improved, and the power of the electroacoustic transducer is increased; and this design can finely tune the installation space of casing inside according to actual conditions, has played the effect that increases practical properties.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the housing.
Fig. 3 is a schematic structural view of the positioning and clamping mechanism.
Detailed Description
The electroacoustic transducer with magnetic circuit system as shown in fig. 1 and 2 comprises a shell 12, a front cover, a vibration system and a magnetic circuit system 30, wherein the shell 12 is formed by connecting an upper shell 121 and a lower shell 122 up and down, a guide groove matched with the upper end of the lower shell 122 is formed in the bottom of the upper shell 121, the upper end of the lower shell 122 is movably connected in the guide groove, a locking mechanism is further arranged between the lower shell 122 and the upper shell 121, the front cover is detachably connected on the upper shell 121, the vibration system is arranged in the upper shell 121 and consists of a vibrating diaphragm and a voice coil connected to the lower side of the vibrating diaphragm, the magnetic circuit system is arranged in the lower shell 122, a mounting frame 40 is sleeved outside the magnetic circuit system 30 and is connected with the lower shell 122 through the mounting frame 40, and a positioning and clamping mechanism is arranged between the mounting frame 40 and the lower shell 122. This design can finely tune the installation space of casing inside according to actual conditions, has played the effect that increases practical properties.
The locking mechanism shown in fig. 2 comprises a locking bolt 123 and a threaded hole formed in the outer side wall of the lower end of the upper shell 121, wherein the locking bolt 123 penetrates through the threaded hole to be connected with the lower shell 122, and the installation space inside the shell can be finely adjusted by adopting the structure.
The magnetic circuit system shown in fig. 1 is a double magnetic circuit structure including a central inner magnetic circuit 31, a peripheral outer magnetic circuit 32, and a lower magnetically permeable plate 33 located at the lower side. The magnetic circuit system is of a rectangular structure, a rectangular magnetic gap for accommodating the voice coil is formed, four sound holes 331 formed by material removal are formed in the positions of four corners of the rectangular magnetic gap on the lower magnetic conduction plate 33, and the sound holes 331 are formed along the magnetic gap. The invention is provided with the sound hole formed by removing the materials at the position corresponding to the corner of the rectangular magnetic gap on the lower magnetic conductive plate, thereby enabling the sound hole not to occupy the thickness of the side wall, increasing the volume of the magnetic circuit system, improving the magnetic performance of the electroacoustic transducer and increasing the power of the electroacoustic transducer.
The positioning and clamping mechanism shown in fig. 3 comprises a groove 51 formed in the inner side wall of the lower end of the lower shell 122, a hemispherical clamping groove 52 formed in the outer side wall of the mounting frame 40, a spherical clamping head 53 and a spring 54, wherein the spherical clamping head 53 is connected in the groove 51 through the spring 54, and the spherical clamping head 53 is clamped into the hemispherical clamping groove 52 under the action of the spring 54. The design has the advantages of simple structure, easy manufacture, practicality and high efficiency.
Claims (1)
1. An electroacoustic transducer with a magnetic circuit, characterized in that: the vibrating device comprises a shell (12), a front cover, a vibrating system and a magnetic circuit system (30), wherein the shell (12) is formed by connecting an upper shell (121) and a lower shell (122) up and down, a guide groove matched with the upper end of the lower shell (122) is formed in the bottom of the upper shell (121), the upper end of the lower shell (122) is movably connected in the guide groove, a locking mechanism is further arranged between the lower shell (122) and the upper shell (121), the front cover is detachably connected on the upper shell (121), the vibrating system is arranged in the upper shell (121), the vibrating system is formed by a vibrating diaphragm and a voice coil connected to the lower side of the vibrating diaphragm, the magnetic circuit system is arranged in the lower shell (122), a mounting frame (40) is sleeved on the outer side of the magnetic circuit system (30), the magnetic circuit system is connected with the lower shell (122) through the mounting frame (40), and a positioning and clamping mechanism is arranged between the mounting frame (40) and the lower shell (122);
the locking mechanism comprises a locking bolt (123) and a threaded hole formed in the outer side wall of the lower end of the upper shell (121), and the locking bolt (123) penetrates through the threaded hole to be connected with the lower shell (122);
The magnetic circuit system is of a double-magnetic circuit structure and comprises a central inner magnetic circuit (31), a peripheral outer magnetic circuit (32) and a lower magnetic conduction plate (33) positioned at the lower side;
the magnetic circuit system is of a rectangular structure and forms a rectangular magnetic gap for accommodating the voice coil, four sound holes (331) formed by material removal are formed in the positions of four corners of the rectangular magnetic gap on the lower magnetic conduction plate (33), and the sound holes (331) are arranged along the magnetic gap;
The positioning clamping mechanism comprises a groove (51) formed in the inner side wall of the lower end of the lower shell (122), a hemispherical clamping groove (52) formed in the outer side wall of the mounting frame (40), a spherical clamping head (53) and a spring (54), wherein the spherical clamping head (53) is connected in the groove (51) through the spring (54), and the spherical clamping head (53) is clamped into the hemispherical clamping groove (52) under the action of the spring (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660066.7A CN107659874B (en) | 2017-08-04 | 2017-08-04 | Electroacoustic transducer with magnetic circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660066.7A CN107659874B (en) | 2017-08-04 | 2017-08-04 | Electroacoustic transducer with magnetic circuit system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107659874A CN107659874A (en) | 2018-02-02 |
| CN107659874B true CN107659874B (en) | 2024-04-19 |
Family
ID=61128504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710660066.7A Active CN107659874B (en) | 2017-08-04 | 2017-08-04 | Electroacoustic transducer with magnetic circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107659874B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218117A1 (en) * | 2018-05-14 | 2019-11-21 | 华为技术有限公司 | Electroacoustic transducer and communication device |
| CN108566609B (en) * | 2018-07-25 | 2022-04-22 | 歌尔股份有限公司 | Sound producing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120022U (en) * | 2011-03-14 | 2012-01-18 | 中山市思锐摄影器材工业有限公司 | Photography monopod locking device |
| CN202721811U (en) * | 2012-04-28 | 2013-02-06 | 歌尔声学股份有限公司 | Electroacoustic transducer |
| CN203086725U (en) * | 2013-01-07 | 2013-07-24 | 歌尔声学股份有限公司 | Electroacoustic transducer |
| CN204948495U (en) * | 2015-04-22 | 2016-01-06 | 昆山万正电路板有限公司 | A kind of easy cleaned circuit board |
| CN205101787U (en) * | 2015-11-11 | 2016-03-23 | 北京市长城机床附件有限责任公司 | Vibration isolation adjustment parallels |
| CN206366932U (en) * | 2016-12-30 | 2017-08-01 | 江苏富沃德电子科技有限公司 | A kind of photovoltaic component terminal box fixture |
| CN207235097U (en) * | 2017-08-04 | 2018-04-13 | 奥音科技（镇江）有限公司 | A kind of electroacoustic transducer with magnetic circuit system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9906847B2 (en) * | 2008-08-17 | 2018-02-27 | Doug S. Wright | Speaker mountings |
-
2017
- 2017-08-04 CN CN201710660066.7A patent/CN107659874B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120022U (en) * | 2011-03-14 | 2012-01-18 | 中山市思锐摄影器材工业有限公司 | Photography monopod locking device |
| CN202721811U (en) * | 2012-04-28 | 2013-02-06 | 歌尔声学股份有限公司 | Electroacoustic transducer |
| CN203086725U (en) * | 2013-01-07 | 2013-07-24 | 歌尔声学股份有限公司 | Electroacoustic transducer |
| CN204948495U (en) * | 2015-04-22 | 2016-01-06 | 昆山万正电路板有限公司 | A kind of easy cleaned circuit board |
| CN205101787U (en) * | 2015-11-11 | 2016-03-23 | 北京市长城机床附件有限责任公司 | Vibration isolation adjustment parallels |
| CN206366932U (en) * | 2016-12-30 | 2017-08-01 | 江苏富沃德电子科技有限公司 | A kind of photovoltaic component terminal box fixture |
| CN207235097U (en) * | 2017-08-04 | 2018-04-13 | 奥音科技（镇江）有限公司 | A kind of electroacoustic transducer with magnetic circuit system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107659874A (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180302724A1 (en) | Miniature speaker | |
| WO2016086756A1 (en) | Miniature loudspeaker | |
| WO2019161703A1 (en) | Sound generator and electronic product | |
| US10820106B2 (en) | Speaker module | |
| CN107659874B (en) | Electroacoustic transducer with magnetic circuit system | |
| CN203708465U (en) | Loudspeaker module group | |
| US7561705B2 (en) | Reduction of flux leakage in a dynamic microphone | |
| CN201904913U (en) | Loudspeaker | |
| CN117425114A (en) | Integrated sounding assembly | |
| CN209642964U (en) | A kind of speaker unit | |
| CN202602881U (en) | Low-distortion loudspeaker | |
| CN107396261B (en) | Vibrating element for electroacoustic transducer | |
| CN206118015U (en) | Ball top formula speaker | |
| CN207235097U (en) | A kind of electroacoustic transducer with magnetic circuit system | |
| CN112565985A (en) | High-sensitivity impact-resistant yacht loudspeaker | |
| CN208046892U (en) | A kind of vibrating elements for electroacoustic transducer | |
| CN209731566U (en) | A kind of loadspeaker structure shallowly installed | |
| CN211406274U (en) | Bone conduction speaker and compound speaker | |
| CN107465980B (en) | Electroacoustic transducer with diaphragm | |
| CN107820172B (en) | Loudspeaker and earphone comprising same | |
| CN107404692B (en) | Front cover applied to electroacoustic transducer | |
| CN218450528U (en) | Loudspeaker of magnet and magnetic conductive sheet combination vibration | |
| CN204119503U (en) | Loudspeaker | |
| CN216391408U (en) | Small-size high-sound loudspeaker | |
| CN218830494U (en) | Loudspeaker mounting structure with reduce resonance effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |