CN202310075U - Electro-acoustic transducer having shielding function - Google Patents
Electro-acoustic transducer having shielding function Download PDFInfo
- Publication number
- CN202310075U CN202310075U CN2011202893224U CN201120289322U CN202310075U CN 202310075 U CN202310075 U CN 202310075U CN 2011202893224 U CN2011202893224 U CN 2011202893224U CN 201120289322 U CN201120289322 U CN 201120289322U CN 202310075 U CN202310075 U CN 202310075U
- Authority
- CN
- China
- Prior art keywords
- yoke
- shielding
- electroacoustic transducer
- circuit board
- end pin
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an electro-acoustic transducer having a shielding function. The electro-acoustic transducer having the shielding function includes a yoke, a magnetic circuit system arranged in the yoke, a vibrating membrane driven by the magnetic circuit system; a cover combined with one side of the yoke and provided with a plurality of sound releasing holes and a end pin; and a circuit board provided with a positive electrode and a negative electrode. The circuit board is also provided with a sensing welding plate. The circuit plate is combined with the other side of the yoke. And the yoke is provided with an auxiliary end pin connecting with the end pin of the cover and connects with the sensing welding plate. In the utility model, the integral shielding of the electro-acoustic transducer is formed by utilizing the cover and the yoke to connect together and connect with the circuit board on the yoke. Thus, the electro-acoustic transducer having the shielding function in the utility model has a function of protecting inner components.
Description
Technical field
The utility model relates to the electro-acoustic conversion device field, and particularly a kind of lid and yoke conducting that utilizes electroacoustic transducer forms shielding action, in order to the inner structure of protection electroacoustic transducer.
Background technology
Along with science and technology is constantly progressive; The development of various electronic products is more quick; Wherein electroacoustic transducer is the important spare part of electronic product sound output; And along with light, the thinning of electronic product, the requirement of electroacoustic transducer also designs towards directions such as microminiaturization, high tone quality, low costs, in the hope of meeting the demand on the market.
Fig. 1 is existing electroacoustic transducer 1 structural representation; Yu Yiduan combines a circuit board 2; Its circuit design have only voice signal input just/negative the two poles of the earth, can't reach the effect of electrostatic defending, therefore have the dealer to design another kind of electroacoustic transducer 3 as shown in Figure 2; In loam cake 4 earth terminal 5 is set; Loam cake 4 is selected metal material or conductive carbon body or other electric conductors for use with earth terminal 5, and sees through the earth connection that earth terminal 5 is connected in cell phone mainboard, to reach the electrostatic defending of protection mobile phone wiring board.
Yet; Though above-mentioned electroacoustic transducer 1 has the function of electrostatic defending; But it is bigger that earth terminal 5 is connected in the impedance of earth connection, causes induction sensitivity lower, and shield effectiveness is clear; And the earth connection of cell phone mainboard and earth terminal 5 must have suitable link position arrangement, otherwise will cause the puzzlement and inconvenience of fit on.
The utility model content
The purpose of the utility model is to provide a kind of electroacoustic transducer of tool function of shielding, utilizes lid and yoke to be connected jointly and the circuit board of conducting on yoke, to form the bulk shielding of electroacoustic transducer, has the effect of protection internal structure.
For reaching above-mentioned purpose, the utility model adopts following technical scheme:
A kind of electroacoustic transducer of tool function of shielding includes a yoke, and a magnetic circuit system is arranged in the yoke; One vibrating membrane is driven by magnetic circuit system, and a lid is incorporated into yoke one side, and has several senders; Lid has an end pin, and a circuit board tool one an anodal and negative pole is in order to the sound import signal of telecommunication; Circuit board has an induction bonding pad in addition, and circuit board is incorporated into the yoke opposite side, and yoke has an auxiliary end pin and is connected also conducting with the end pin of lid in induction bonding pad; Make electroacoustic transducer have function of shielding, to realize the purpose of protection internal structure.
Preferably: said yoke has integrated reference column, and this induction bonding pad has a combined hole and combines with this reference column.
More preferably: said yoke is worn breach more in the other end that is provided with the said lid of a confession of this auxiliary end pin.
Preferably: said induction bonding pad has a combined hole, and this yoke has a location hole, sees through a metallic pin this circuit board is incorporated into this yoke one side and forms conducting.
More preferably: said yoke is worn more for the end of this lid in the other breach that is provided with of this auxiliary end pin.
More preferably: said yoke one side periphery is provided with several air vent holes, is provided with a ventilation sheet and covers this air vent hole.
Description of drawings
Fig. 1 is the cross-sectional view of existing electroacoustic transducer;
Fig. 2 is the cross-sectional view of another existing electroacoustic transducer;
Fig. 3 is the electroacoustic transducer embodiment one decomposition texture sketch map of the said tool function of shielding of the utility model;
Fig. 4 is electroacoustic transducer embodiment one cross-sectional view of the said tool function of shielding of the utility model;
Fig. 5 is the electroacoustic transducer embodiment two decomposition texture sketch mapes of the said tool function of shielding of the utility model;
Fig. 6 is the electroacoustic transducer embodiment two of the said tool function of shielding of the utility model
The combining structure sketch map;
Fig. 7 is the electroacoustic transducer embodiment three decomposition texture sketch mapes of the said tool function of shielding of the utility model;
Fig. 8 is the electroacoustic transducer embodiment three combining structure sketch mapes of the said tool function of shielding of the utility model.
[primary clustering symbol description]
Embodiment
Do further explain below in conjunction with accompanying drawing and specific embodiment with regard to the electroacoustic transducer of the said tool function of shielding of the utility model.
Embodiment one
Shown in Figure 3 is the decomposition texture sketch map of the electroacoustic transducer of the said tool function of shielding of present embodiment.Electroacoustic transducer 100 includes a yoke 10, a magnetic circuit system 20, a vibrating membrane 30, a lid 40, a circuit board 50 and a ventilation sheet 60.
Yoke 10 is peviform; Be used for taking in magnetic circuit system 20 and vibrating membrane 30, base one side periphery ring is provided with several air vent holes 11, so that spatial communication is extraneous in the basin; Air vent hole 11 1 sides are provided with integrated reference column 12; One-body molded and stretch out along with yoke 10, yoke 10 has one and bends out the auxiliary end pin 13 that slightly is down L shaped to periphery, and auxiliary end pin 13 sides are provided with a breach 14.
Vibrating membrane 30 is incorporated into voice coil loudspeaker voice coil 23 1 ends, driven and interlock by magnetic circuit system 20.
Lid 40 is processed for the metal material, is incorporated into yoke 10, be used for magnetic circuit system 20 and vibrating membrane 30 are closed in yoke 10, and lid 40 is provided with several senders 41, and lid 40 convexes with one and slightly is down L shaped end pin 42.
Ventilation sheet 60 fits in one of yoke 10 side place with circuit board 50 on same plane, and covers air vent hole 11, is used for regulating throughput.
When voice coil loudspeaker voice coil 23 received current lead-through, the magnetic field that voice coil loudspeaker voice coil 23 and magnetic circuit system 20 are produced produces magnetic or magnetic scolded effect and vibrates, and then drove vibrating membrane 30 and produce vibration, produced sound so that promote ambient air, and sounded from sender 41.
Shown in Figure 4 is the combining structure sketch map of the electroacoustic transducer of the said tool function of shielding of the utility model.The yoke 10 of electroacoustic transducer 100 sees through extended reference column 12 and combines with circuit board 50 to fix, and makes lid 40 be incorporated into yoke 10, and the end pin 42 of lid 40 passes through the induction bonding pad 53 formation conductings that breach 14 is connected to the circuit board 50 on the yoke 10; Auxiliary end pin 13 also is connected to induction bonding pad 53, forms induction bonding pad 53 conductings with circuit board 50 of lid 40, yoke 10, and can be fixed as together through welding; The induction bonding pad 53 welding lines of induction through circuit board 50 when line of induction ground connection, can make electroacoustic transducer 100 ground connection; Reach the electrostatic defending effect; When the line of induction is connected with signal receiving device, electroacoustic transducer 100 can be used as antenna, broadcasts, the frequency sending and receiving of blue bud or network etc. receive; When the line of induction is connected with capacitor; Electroacoustic transducer can serve as the induction pole of electric capacity, so embodiment has reliable shielding effect, or as antenna, induction pole etc.
Embodiment two
Fig. 5 and shown in Figure 6 be the second embodiment decomposition texture sketch map and the combining structure sketch map of the electroacoustic transducer of the said tool function of shielding of the utility model.In the present embodiment, graphic for the sake of clarity and do not show the described ventilation sheet of last embodiment 60, magnetic circuit system 20 and vibrating membrane 30.Present embodiment and preceding embodiment difference are; Yoke 10 is provided with a location hole 15; And see through between the location hole 15 that a metallic pin 70 wears the combined hole 54 that is fixed in circuit board 50 and yoke 10, circuit board 50 is fixed in yoke 10, form yoke 10 and circuit board 50 conductings; Through the line of induction yoke 10 is connected in the outside, is able to integrant shield effectiveness.
Embodiment three
Fig. 7 and shown in Figure 8 be the 3rd embodiment decomposition texture sketch map and the combining structure sketch map of the electroacoustic transducer of the said tool function of shielding of the utility model.The present embodiment and the second embodiment difference are; Utilize the end pin 42 of lid 40; The auxiliary end pin 13 effect fixing circuit boards 50 of yoke 10 circuit board 50 is clamped and fastened on yoke 10 1 ends, and auxiliary end pin 13 are connected to the induction bonding pad 53 of circuit board 50 and form conducting with end pin 42; To see through the line of induction yoke 10 is connected in the outside, is able to integrant shield effectiveness.
Comprehensively above-mentioned; The electroacoustic transducer of the said tool function of shielding of the utility model; By the end pin of lid and the auxiliary end pin of yoke, firm circuit board is on yoke, and the connection conducting is in the induction bonding pad of circuit board; Form the whole shield effectiveness of electroacoustic transducer, have the effect of protection internal structure and specific inducing function.
The above embodiment is merely illustrative, but not is restricted person.Any the utility model that do not break away from is contained spirit and category, and it is carried out equivalent modifications or change, all should be contained in the utility model protection range.
Claims (6)
1. the electroacoustic transducer of a tool function of shielding is characterized in that, comprising:
One yoke;
One magnetic circuit system is arranged in this yoke;
One receives the vibrating membrane of this magnetic circuit system driving;
One lid is incorporated into this yoke one side, and has several senders, and this lid has an end pin;
One circuit board, the anodal and negative pole of tool one, this circuit board has an induction bonding pad in addition, and this circuit board is incorporated into this yoke opposite side, and this yoke has an auxiliary end pin and is connected also conducting with the end pin of this lid in this induction bonding pad.
2. the electroacoustic transducer of tool function of shielding as claimed in claim 1 is characterized in that: said yoke has integrated reference column, and this induction bonding pad has a combined hole and combines with this reference column.
3. the electroacoustic transducer of tool function of shielding as claimed in claim 1 is characterized in that: said yoke is worn breach more in the other end that is provided with the said lid of a confession of this auxiliary end pin.
4. the electroacoustic transducer of tool function of shielding as claimed in claim 1 is characterized in that: said induction bonding pad has a combined hole, and this yoke has a location hole, sees through a metallic pin this circuit board is incorporated into this yoke one side and forms conducting.
5. the electroacoustic transducer of tool function of shielding as claimed in claim 1 is characterized in that: said yoke is worn more for the end of this lid in the other breach that is provided with of this auxiliary end pin.
6. the electroacoustic transducer of tool function of shielding as claimed in claim 1 is characterized in that: said yoke one side periphery is provided with several air vent holes, is provided with a ventilation sheet and covers this air vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202893224U CN202310075U (en) | 2011-08-10 | 2011-08-10 | Electro-acoustic transducer having shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202893224U CN202310075U (en) | 2011-08-10 | 2011-08-10 | Electro-acoustic transducer having shielding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202310075U true CN202310075U (en) | 2012-07-04 |
Family
ID=46378882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202893224U Expired - Fee Related CN202310075U (en) | 2011-08-10 | 2011-08-10 | Electro-acoustic transducer having shielding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202310075U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581511A (en) * | 2015-02-04 | 2015-04-29 | 邓瑞瑞 | Electromagnetic shielding loudspeaker |
| CN106303848A (en) * | 2016-08-12 | 2017-01-04 | 苏州秀转电子有限公司 | The electromagnetic screen of vehicle audio |
| CN107920301A (en) * | 2017-11-15 | 2018-04-17 | 宁波麦度智联科技股份有限公司 | A kind of loudspeaker |
-
2011
- 2011-08-10 CN CN2011202893224U patent/CN202310075U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581511A (en) * | 2015-02-04 | 2015-04-29 | 邓瑞瑞 | Electromagnetic shielding loudspeaker |
| CN106303848A (en) * | 2016-08-12 | 2017-01-04 | 苏州秀转电子有限公司 | The electromagnetic screen of vehicle audio |
| CN106303848B (en) * | 2016-08-12 | 2019-05-14 | 苏州秀转电子有限公司 | The electromagnetic screen of vehicle audio |
| CN107920301A (en) * | 2017-11-15 | 2018-04-17 | 宁波麦度智联科技股份有限公司 | A kind of loudspeaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10284959B2 (en) | Loudspeaker | |
| US10057691B2 (en) | Miniature sounder | |
| US9628881B2 (en) | Speaker | |
| CN114554369B (en) | Sound producing device and electronic equipment | |
| US9674613B2 (en) | Speaker box | |
| CN213126461U (en) | Sound production monomer, speaker and electronic terminal | |
| US10051375B2 (en) | Speaker box | |
| CN202310075U (en) | Electro-acoustic transducer having shielding function | |
| CN101860777A (en) | Portable electronic device | |
| CN214481253U (en) | Double-moving-coil micro loudspeaker | |
| CN202424980U (en) | Microphone assembly with earphone function | |
| CN114268889A (en) | Speaker and electronic apparatus | |
| CN102143667B (en) | Electronic device | |
| US20160227322A1 (en) | Speaker Box | |
| CN201854411U (en) | Minitype moving-coil electroacoustic transducer | |
| CN102300148B (en) | Electroacoustic transducer having sensing function | |
| CN202514066U (en) | Multifunctional mini-size loudspeaker | |
| CN202424972U (en) | Speaker module | |
| CN211152201U (en) | Vibrating diaphragm | |
| CN204887456U (en) | Many magnetism display separation china department speaker | |
| CN201616901U (en) | Miniature moving coil type electro-acoustic converter | |
| CN207166759U (en) | Single magnetic speaker and electronic equipment | |
| US9363604B2 (en) | Speaker box | |
| CN201699774U (en) | Communication device | |
| CN213906915U (en) | Electroacoustic device and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20180810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |