CN102300148B - Electroacoustic transducer having sensing function - Google Patents
Electroacoustic transducer having sensing function Download PDFInfo
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- CN102300148B CN102300148B CN201110228468.2A CN201110228468A CN102300148B CN 102300148 B CN102300148 B CN 102300148B CN 201110228468 A CN201110228468 A CN 201110228468A CN 102300148 B CN102300148 B CN 102300148B
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- yoke
- circuit board
- electroacoustic transducer
- bonding pad
- induction
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Abstract
The invention discloses an electroacoustic transducer having a sensing function, which comprises a yoke iron, a magnetic circuit system, a vibration membrane, a cover and a circuit board, wherein the magnetic circuit system is arranged inside the yoke iron; the vibration membrane is driven by the magnetic circuit system; the cover is connected with one side of the yoke iron and is provided with a plurality of phonate holes; and the circuit board is provided with an anode and a cathode and is used for inputting an acoustic electric signal, the circuit is provided with a sensing welding tray, the circuit board is connected with the other side of the yoke iron, and the yoke iron is provided with a part which is connected and communicated with the sensing welding tray. The yoke iron is connected with the sensing welding tray of the circuit board to form a communication state, so the electroacoustic transducer can be connected with external devices, the internal structure of the electroacoustic transducer can be protected, and the sensing function can be realized.
Description
Technical field
The present invention relates to electro-acoustic conversion device field, refer to a kind of circuit board utilizing the yoke of electroacoustic transducer to be communicated in band inducing function especially, and can shielding action be formed, in order to protect the structure of electroacoustic transducer inside.
Background technology
Along with science and technology constantly progress, the development of various electronic product is more quick, wherein electroacoustic transducer is the important spare part of the sound output of electronic product, and along with light, the thinning of electronic product, the requirement of electroacoustic transducer also designs, to meeting the demand on market towards directions such as microminiaturization, high tone quality, low costs.
Figure 1 shows that current existing electroacoustic transducer 1; in one end in conjunction with a circuit board 2; positive/negative the two poles of the earth that its circuit design only has voice signal to input; effect of electrostatic defending cannot be reached; therefore dealer is had to design another existing electroacoustic transducer 3 as shown in Figure 2; in upper cover 4, earth terminal 5 is set; upper cover 4 and earth terminal 5 select metal material or conductive carbon body or other electric conductors; and be connected to the earth connection of cell phone mainboard through earth terminal 5, to reach the electrostatic defending of protection cell phone lines plate.
But, though above-mentioned electroacoustic transducer 3 has the function of electrostatic defending, but the impedance that earth terminal 5 is connected to earth connection is larger, cause induction sensitivity lower, shield effectiveness is unevident, the earth connection of cell phone mainboard and earth terminal 5 must have suitable link position arrangement, otherwise will cause the puzzlement of fit on and inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of electroacoustic transducer of tool inducing function; yoke is utilized to connect the induction bonding pad of circuit board thereon; in order to form conducting state, and can external device (ED) be connected to, can be used to protect the structure of electroacoustic transducer inside and have inducing function concurrently.
For achieving the above object, the present invention adopts following technical scheme:
A kind of electroacoustic transducer of tool inducing function, it includes a yoke, one magnetic circuit system is arranged in yoke, and a vibrating membrane drives by magnetic circuit system, and a lid is incorporated into yoke side, and there is several sender, one circuit board tool one positive pole and a negative pole, in order to the sound import signal of telecommunication, circuit board separately has an induction bonding pad, circuit board is incorporated into yoke opposite side, and yoke have a part of connect and conducting in induction bonding pad.Induction bonding pad through circuit board is welded in a line of induction, when line of induction ground connection, electroacoustic transducer ground connection can be made, reach electrostatic defending effect, and be connected with signal receiving device when the line of induction, then electroacoustic transducer can be used as antenna, to carry out broadcasting, the frequency sending and receiving receipts function of bluetooth or network etc., and when the line of induction is connected with capacitor, then electroacoustic transducer can serve as the induction pole of electric capacity.
In embodiments of the present invention, yoke has integrated reference column, and induction bonding pad has a combined hole and is combined with reference column, makes circuit board be fixed on yoke, as connection conducting, is used for being connected to external device (ED).
In an alternative embodiment of the invention, induction bonding pad has a combined hole, and yoke has a location hole, through a metallic pin, circuit board is incorporated into yoke side, as connection conducting, is used for being connected to external device (ED).
In still another embodiment of the process, yoke has an auxiliary end pin, is connected to induction bonding pad, is used for circuit board to be clamped and fastened on yoke, as connection conducting, in order to be connected to external device (ED).
Accompanying drawing explanation
Fig. 1 is existing electroacoustic transducer structural representation;
Another existing electroacoustic transducer structural representation of Fig. 2;
Fig. 3 is the electroacoustic transducer embodiment one decomposition texture schematic diagram of tool inducing function of the present invention;
Fig. 4 is the electroacoustic transducer embodiment one combining structure schematic diagram of tool inducing function of the present invention;
Fig. 5 states by this electroacoustic transducer embodiment two decomposition texture schematic diagram of tool inducing function clearly;
Fig. 6 is the electroacoustic transducer embodiment two combining structure schematic diagram of tool inducing function of the present invention;
Fig. 7 is the electroacoustic transducer embodiment three decomposition texture schematic diagram of tool inducing function of the present invention;
Fig. 8 is the electroacoustic transducer embodiment three combining structure schematic diagram of tool inducing function of the present invention;
Fig. 9 is the electroacoustic transducer embodiment four decomposition texture schematic diagram of tool inducing function of the present invention;
Figure 10 is the electroacoustic transducer embodiment four combining structure schematic diagram of tool inducing function of the present invention;
Figure 11 is the electroacoustic transducer embodiment five decomposition texture schematic diagram of tool inducing function of the present invention;
Figure 12 is the electroacoustic transducer embodiment five combining structure schematic diagram of tool inducing function of the present invention;
Figure 13 is the electroacoustic transducer embodiment six decomposition texture schematic diagram of tool inducing function of the present invention;
Figure 14 is the electroacoustic transducer embodiment six combining structure schematic diagram of tool inducing function of the present invention.
[primary clustering symbol description]
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment one
Figure 3 shows that the decomposition texture schematic diagram of the electroacoustic transducer of tool inducing function described in the present embodiment.Electroacoustic transducer 100 includes yoke 10, magnetic circuit system 20, vibrating membrane 30, lid 40, circuit board 50 and a ventilation sheet 60.
Yoke 10 is in peviform, be used for receiving magnetic circuit system 20 and magnetic circuit system film 30, base 10 side periphery ring is provided with several air vent hole 11 and makes space in basin be communicated in the external world, and air vent hole 11 side is provided with integrated reference column 12, along with yoke 10 is one-body molded and stretch out.
Magnetic circuit system 20 includes magnet 21, one magnetic conductive disk 22 and a voice coil loudspeaker voice coil 23, and magnet 21 one side is placed in yoke 10, and magnetic conductive disk 22 is placed in magnet 21 another side, and voice coil loudspeaker voice coil 23 is arranged at the periphery between magnet 21 and magnetic conductive disk 22.
Vibrating membrane 30 is incorporated into voice coil loudspeaker voice coil 23 one end, drives and interlock by magnetic circuit system 20.
Lid 40 is made for metal material, and be incorporated into yoke 10, in order to magnetic circuit system 20 and vibrating membrane 30 are closed in yoke 10, and lid 40 is provided with several sender 41.
Circuit board 50 has positive pole 51, negative pole 52 and an induction bonding pad 53, induction bonding pad 53 has a combined hole 54, circuit board 50 utilizes combined hole 54 to be fixed on the reference column 12 of yoke 10, to make circuit board 50 firmly be arranged at yoke 10 side place, and the positive pole 51 of circuit board 50 and negative pole 52 are used for the sound import signal of telecommunication.
Ventilation sheet 60 and circuit board 50 fit in the side place of yoke 10 on same plane, and cover air vent hole 11, in order to regulate throughput.
When voice coil loudspeaker voice coil 23 is by current lead-through, the magnetic field that voice coil loudspeaker voice coil 23 and magnetic circuit system 20 produce produces magnetic or magnetic and scolds and act on and vibrate, and then drives vibrating membrane 30 generation to vibrate, to promote ambient air and to produce sound, and sounds from sender 41.
Figure 4 shows that the combining structure schematic diagram of the electroacoustic transducer of the present embodiment tool inducing function.Yoke 10 of the present invention through the reference column 12 extended with circuit board 50 conducting or weld conducting, and weld the line of induction through the induction bonding pad 53 of circuit board 50, when line of induction ground connection, electroacoustic transducer 100 ground connection can be made, reach electrostatic defending effect, and when the line of induction is connected with signal receiving device, then electroacoustic transducer 100 can be used as antenna, to broadcast, the frequency sending and receiving of bluetooth or network etc. are received, and when the line of induction is connected with capacitor, then electroacoustic transducer can serve as the induction pole of electric capacity, the present invention is by easy combining structure, the inducing function that reliable electroacoustic transducer 100 is connected with external device (ED) can be reached.
Embodiment two
Fig. 5 and Figure 6 shows that the second embodiment decomposition texture schematic diagram of electroacoustic transducer and the combining structure schematic diagram of tool inducing function of the present invention.In the present embodiment, graphic for the sake of clarity and do not show ventilation sheet 60 described in previous embodiment, magnetic circuit system 20 and vibrating membrane 30.The present embodiment and front embodiment difference are, lid 40 is convexly equipped with the end pin 42 that is slightly inverted L-shaped, and yoke 10 has one to periphery and bends out auxiliary end pin 13 slightly in inverted L-shaped, and yoke 10 is provided with a breach 14 at auxiliary end pin 13 side, when making lid 40 be incorporated into yoke 10, the induction bonding pad 53 that end pin 42 is passed through breach 14 and is connected to the circuit board 50 on yoke 10 forms conducting, auxiliary end pin 13 is also connected to induction bonding pad 53, form lid 40 and yoke 10 conducting together with induction bonding pad 53 simultaneously, and can pass through and weld together to increase reliability, reach overall electrostatic defending and shield effect.In this enforcement, auxiliary end pin 13 can be cancelled on demand, also can maintain the turn-on effect of lid 40, yoke 10 and circuit board 50 after cancellation.
Embodiment three
Shown in Fig. 7 and Fig. 8, be the 3rd embodiment decomposition texture schematic diagram and the combining structure schematic diagram of the electroacoustic transducer of tool inducing function of the present invention.The present embodiment and previous embodiment difference are, yoke 10 is provided with a location hole 15, and the combined hole 54 and the location hole 15 of yoke 10 that are fixed on circuit board 50 is worn through a metallic pin 70, so that circuit board 50 is fixed on yoke 10, form yoke 10 and circuit board 50 conducting, and through the line of induction, yoke 10 can be connected to outside again.
Embodiment four
Shown in Fig. 9 and Figure 10, be the 4th embodiment decomposition texture schematic diagram and the combining structure schematic diagram of the electroacoustic transducer of tool inducing function of the present invention.The present embodiment is main to be with the 3rd embodiment difference, and yoke 10 has auxiliary end pin 13 and lid 40 has end pin 42, is used for being connected to together the induction bonding pad 53 of circuit board 50, and fixes through welding manner, increase reliability.In this enforcement, if metallic pin 70 is made for electric conducting material, then auxiliary end pin 13 can be cancelled, and also can maintain the turn-on effect of lid 40, yoke 10 and circuit board 50.
Embodiment five
Shown in Figure 11 and 12, be the 5th embodiment decomposition texture schematic diagram and the combining structure schematic diagram of the electroacoustic transducer of tool inducing function of the present invention.The auxiliary end pin 13 of yoke 10 is mainly utilized to act on fixing circuit board 50 in the present embodiment, so that circuit board 50 is clamped and fastened on yoke 10 one end, and auxiliary end pin 13 is connected to the induction bonding pad 53 of circuit board 50 and forms conducting, by the line of induction, yoke 10 is connected to outside.
Embodiment 6
Shown in Figure 13 and 14, be the 6th embodiment decomposition texture schematic diagram and the combining structure schematic diagram of the electroacoustic transducer of tool inducing function of the present invention.The present embodiment and the 5th embodiment difference are, lid 40 has end pin 42, end pin 42 through lid 40 is connected to the induction bonding pad 53 of circuit board 50 with the auxiliary end pin 13 of yoke 10 and forms conducting, to form lid 40, yoke 10 is conducting with circuit board 50, be able to integrant shield effectiveness, make yoke 10 can pass through the line of induction to be connected to outside.
Comprehensively above-mentioned, the electroacoustic transducer of tool inducing function of the present invention, reference column is provided with by yoke, induction bonding pad has combined hole and is combined with reference column, circuit board is made to be fixed on yoke, or establish combined hole in induction bonding pad, location hole established by yoke, and through metallic pin, circuit board is incorporated into yoke side, or utilize and yoke arranges auxiliary end pin, directly be connected to induction bonding pad, in order to circuit board is clamped and fastened on yoke, so all circuit board can be fixed on yoke, and make yoke be connected conducting with the induction bonding pad of circuit board, when induction bonding pad connects the line of induction, be connected to external device (ED), when line of induction ground connection, electroacoustic transducer ground connection can be made, reach electrostatic defending effect, and when the line of induction is connected with signal receiving device, then electroacoustic transducer can be used as antenna, to broadcast, the frequency sending and receiving of bluetooth or network etc. are received, and when the line of induction is connected with capacitor, then electroacoustic transducer can serve as the induction pole of electric capacity.
In the foregoing embodiments, all at lid or end pin, auxiliary end pin can be set simultaneously on yoke respectively, using as firm circuit board in yoke and connect conducting in the induction bonding pad of circuit board, form the shield effectiveness of electroacoustic transducer entirety, there is effect of protection internal structure and specific inducing function.
The foregoing is only illustrative, but not be restricted person.Anyly do not depart from spirit of the present invention and category, and equivalent modifications or change are carried out to it, all should be included in scope.
Claims (1)
1. an electroacoustic transducer for tool inducing function, comprising:
One yoke;
One magnetic circuit system, is arranged in this yoke;
One drives vibrating membrane by magnetic circuit system;
One metal lid, is incorporated into this yoke side, and has several sender and at least one end pin;
One circuit board, tool one positive pole and a negative pole, in order to the sound import signal of telecommunication, this circuit board separately has an induction bonding pad, and this circuit board is incorporated into this yoke opposite side, and this yoke have a part of connect and conducting in this induction bonding pad; Described positive pole, negative pole, induction bonding pad are the same sides being disposed on circuit board;
Wherein said yoke has an auxiliary end pin, is connected to this induction bonding pad, and is gripped by this circuit board; The end pin of described metal lid is connected to this circuit board, the induction bonding pad on metal lid and circuit board is formed and electrically conducts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228468.2A CN102300148B (en) | 2011-08-10 | 2011-08-10 | Electroacoustic transducer having sensing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228468.2A CN102300148B (en) | 2011-08-10 | 2011-08-10 | Electroacoustic transducer having sensing function |
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| Publication Number | Publication Date |
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| CN102300148A CN102300148A (en) | 2011-12-28 |
| CN102300148B true CN102300148B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110228468.2A Active CN102300148B (en) | 2011-08-10 | 2011-08-10 | Electroacoustic transducer having sensing function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200474A (en) * | 2012-01-04 | 2013-07-10 | 苏州恒听电子有限公司 | Micro circuit board device used for minitype loudspeaker device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332487A (en) * | 2000-06-30 | 2002-01-23 | 株式会社村田制作所 | Nonreciprocal circuit device and its mounting structure |
| CN101374362A (en) * | 2007-08-24 | 2009-02-25 | 固昌通讯股份有限公司 | Earphone horn with antistatic circuit board |
| CN101478076A (en) * | 2008-01-04 | 2009-07-08 | 宏达国际电子股份有限公司 | Antenna component, loudspeaker and portable electronic device |
| CN201590875U (en) * | 2009-09-28 | 2010-09-22 | 瑞声声学科技(常州)有限公司 | Speaker system and electronic device using same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100668423B1 (en) * | 2005-03-14 | 2007-01-16 | 삼성전자주식회사 | Speaker module for improving antenna property in portable wireless terminal |
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2011
- 2011-08-10 CN CN201110228468.2A patent/CN102300148B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332487A (en) * | 2000-06-30 | 2002-01-23 | 株式会社村田制作所 | Nonreciprocal circuit device and its mounting structure |
| CN101374362A (en) * | 2007-08-24 | 2009-02-25 | 固昌通讯股份有限公司 | Earphone horn with antistatic circuit board |
| CN101478076A (en) * | 2008-01-04 | 2009-07-08 | 宏达国际电子股份有限公司 | Antenna component, loudspeaker and portable electronic device |
| CN201590875U (en) * | 2009-09-28 | 2010-09-22 | 瑞声声学科技(常州)有限公司 | Speaker system and electronic device using same |
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| CN102300148A (en) | 2011-12-28 |
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