CN1231467A - Electro-acoustic transducer - Google Patents
Electro-acoustic transducer Download PDFInfo
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- CN1231467A CN1231467A CN99104428A CN99104428A CN1231467A CN 1231467 A CN1231467 A CN 1231467A CN 99104428 A CN99104428 A CN 99104428A CN 99104428 A CN99104428 A CN 99104428A CN 1231467 A CN1231467 A CN 1231467A
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Abstract
A reference plane is set on an electric acoustic transducer, in which the distance between the reference plane and a printed board of an electric equipment fixing the electric acoustic transducer in the direction of elastic distortion of a spring terminal becomes always constant, and a horizontal part of the spring terminal is brought into close contact with the and a connection part of spring terminal is soldered to a wiring pattern of the printed board. The reference plane keeps the contact pressure of spring terminal to the printed board always constant by improving the precision of positioning in the direction of elastic deformation of a spring terminal, and to improve the solderability of spring terminal.
Description
The present invention relates to a kind of sonorific electroacoustics transducer that is used for.Say that more clearly the present invention relates to the improvement done of spring terminal in order to the response input electrical signal, this spring terminal is installed on the Manufactured electroacoustics transducer, this electroacoustics transducer is applicable to portable electric appts such as mobile phone, beeper etc.
In having the portable electric appts of electroacoustics transducer, the method that electroacoustics transducer is installed on the portable electric appts is a lot.Such as: be used for methods such as the soft soldering method of pin terminal and surface be fixing.In above-mentioned portable electric appts, mobile phone is used widely, and the kind of product is on the increase in recent years, and the life cycle of product is in continuous shortening simultaneously.Thereby make people begin to reappraise the installation method of electroacoustics transducer.Particularly, adopt the installation method of spring terminal to have lower equipment and manufacturing cost attracts tremendous attention owing to it.
The spring terminal that uses on the electroacoustics transducer must design according to the size of the miniaturized electronics that transducer is installed.In order to guarantee between spring terminal and the electroacoustics transducer various array configurations to be arranged, thereby make the shape of spring change and to make the usable range of electroacoustics transducer to be enlarged at an easy rate, adopt the method that spring terminal is connected on the Manufactured electroacoustics transducer more favourable.Following is an example that adopts the traditional electroacoustics transducer of this method.
In Figure 11, label ⅰ represents a traditional example that is used for the electromagnetic sound generator on the miniaturized electronics, and this generator is an electroacoustics transducer.In electromagnetic sound generator 1, response electric signal and the sound generator 2 of sounding is installed in the columnar shell 3.One printed circuit board 4 is installed on the top of this sound generator 2.A pair of spring terminal 5 (only illustrate among Figure 11 this terminal centering one) is connected on circuitous pattern (circuit pattern) 4a at "+" utmost point of printed circuit board (PCB) 4 and "-" utmost point place.The elastic sheet jack-knife of materials such as spring terminal 5 usefulness spring steel, stainless steel, beryllium copper, titanium copper and making.The end of spring terminal 5 is welded on the circuitous pattern 4a of printed circuit board (PCB) 4 with soft soldering method.The lower surface of shell 3 is fixed on by suitable stationary installation on the body 6 of electronic equipment, such as fixing by a two-sided adhesive tape or assembly parts that scribble pressure sensitive adhesives.When electromagnetic sound generator 1 being installed to mobile phone body 6 inside, at first shell 3 is installed on the body 6, then a printed circuit board (PCB) 7 as electrical signal is installed in the top of shell 3 and is parallel to body 6.This printed circuit board (PCB) 7 makes spring terminal 5 that elastic deformation take place, and the free end of this spring terminal 5 flexibly contacts with the part of the circuitous pattern 7a of printed circuit board (PCB) 7.
Be welded in the method for spring terminal 5 usefulness solders under the condition on the circuitous pattern 4a of printed circuit board (PCB) 4, can more clearly set forth spring terminal 5.Spring terminal 5 is having the section of being inclined upwardly apart from its linkage section 5a one than short distance, and horizontal-extending forms one section horizontal segment 5b then, and this horizontal segment is taken and put on the upper surface 3a of shell 3.Thereafter, spring terminal 5 slightly protrudes towards the side of shell 3 and acutangulates the ground bending to form a curved section 5c, extends upward to form a deformation section 5d from curved section 5c.End at deformation section 5d has formed a contact site 5e.Realize by linkage section 5a is contacted with the circuitous pattern 4a of printed circuit board (PCB) 4 vertical (elastic deformation direction) location of spring terminal 5.When upper print circuit board 7 compression deformation section 5d, the horizontal segment 5b of spring terminal contacts with the upper surface 3a of shell 3, so that deformation section 5d bends, suppose that the contact pressure that contact site 5e is applied on the circuitous pattern 7a is a steady state value this moment.
Figure 12 illustrates a kind of make of the electromagnetic sound generator 1 shown in Figure 11.Identical parts among the representative of identical label and Figure 11.In the spring terminal 5 of electromagnetic sound generator 1A, linkage section 5a directly extends out from horizontal segment 5b, with horizontal segment 5b in same plane.The horizontal segment 5b of spring terminal 5 directly paste be placed on printed circuit board (PCB) 4 above.Linkage section 5a is fixed on the circuitous pattern 4a.
The assemble method of the electromagnetic sound generator 1 shown in Figure 11 is as follows: at first will insert with the sound generator 2 that printed circuit board (PCB) 4 be made one and fixing with shell 3, the method with solder is welded to spring terminal 5 on the circuitous pattern 4a of printed circuit board (PCB) 4 then.Yet because the vertical range H between the upper surface 3a of printed circuit board (PCB) 4 and shell 3 is not constant, so distance H usually can not be consistent with the linkage section 5a and the vertical range h between the horizontal segment 5b of spring terminal 5.
When distance H during less than distance h, spring terminal 5 will tilt towards the direction of arrow X indication, and perhaps horizontal segment 5b will float from the upper surface 3a of shell 3.When distance H during greater than distance h, the linkage section 5a of spring terminal 5 links to each other with circuitous pattern 4a, simultaneously its horizontal segment 5b will tilt towards the direction of arrow Y indication and towards with the situation of above-mentioned H less than h in opposite direction float.Another kind of possible situation is, horizontal segment 5b will contact with the upper surface 3a of shell 3, and linkage section 5a will float from circuitous pattern 4a fully.In other words, because spring terminal 5 realizes perpendicular positioning by linkage section 5a is contacted with circuitous pattern 4a, so the assembling situation of parts and the variation on the size thereof will influence the location.Thereby make horizontal segment 5b can not always resemble shown in Figure 11 carry out surface applying with the upper surface 3a of shell 3.When the horizontal segment 5b of spring terminal 5 with respect to shell 3 on the upright position of surperficial 3a when non-constant, the contact pressure between the circuitous pattern 7a of spring terminal 5 and printed circuit board (PCB) 7 can not keep constant as desired.In addition, when linkage section 5a and circuitous pattern 4a were separated from fully, soldering was difficult to easily carry out; That is, brazing property is good inadequately.As seen, all there are some problems in above-mentioned situation.
In the electromagnetic sound generator 1A shown in Figure 12, the sound generator 2 that is installed among this generator 1A comprises several parts.Therefore, the variation owing to these part assemblings and size makes that the upper surface of printed circuit board (PCB) 4 is not constant apart from the height 1 between the lower surface of shell 3.Thereby the contact pressure between the circuitous pattern 7a of contact site 5e and printed circuit board (PCB) 7 also with in the above-mentioned electromagnetic sound generator 1 equally can not keep constant.
An object of the present invention is to provide a kind of electroacoustics transducer, spring terminal wherein can accurately be located on its elastic deformation direction, thereby make that the contact pressure between the electrical signal of a spring terminal and an installing component is constant, and the brazing property between spring terminal and the electric signal input end is improved, wherein above-mentioned installing component can be printed circuit board (PCB) on the electronic equipment and so on.
The invention provides a kind of electroacoustics transducer, comprise that can respond input electrical signal and the sound generator of sounding, this sound generator comprises an electric signal input end; A shell that holds sound generator; A spring terminal that is connected with this electric signal input end.When this electroacoustics transducer was installed on the installing component, an electrical signal of this spring terminal and installing component contacted by the elastic contact pressure of spring.A reference surface also is provided in this electroacoustics transducer, when electroacoustics transducer is installed on the installing component, this reference surface apart from electrical signal along on the direction of spring terminal generation elastic deformation being a constant distance.Spring terminal adjoins joint with this reference surface and is connected with electric signal input end.
According to the present invention, spring terminal contacts with reference surface and is connected with electric signal input end.Thereby under uncharged situation, the distance between the contact portion of spring terminal and reference surface and the electrical signal of installing component always keeps constant.The distance that reference surface and being used for is installed between the electrical signal of installing component of electroacoustics transducer also always keeps constant.Therefore, and the distance between the electrical signal of contacted spring terminal of reference surface and installing component also keep constant.Thereby make spring terminal be able to accurately locate, and the contact pressure between the electrical signal of spring terminal and installing component also become always constant in the elastic deformation direction.Like this, the present invention can provide a kind of electroacoustics transducer with stability.In addition, because this spring terminal is located by reference surface, the linkage section of spring terminal can design to such an extent that be easy to more be connected with electric signal input end, thereby switching performance such as brazing property are improved.
Preferably reference surface is selected in above the shell that directly is installed on the installing component.What need indicate is that when shell comprised a plurality of part, reference surface preferably was selected on that part that is directly installed on the installing component.If these parts are assembled together in the time of also can guaranteeing definite relative position is arranged between them, reference surface may be selected on any one part of shell.In like manner, when electric signal input end was made one as a printed circuit board or lead terminal and shell, as long as the importation always keeps constant with respect to the position of installing component, reference surface just may be selected on the electric signal input end.
Each linkage section of spring terminal and electric signal input end is usually designed to the form that their surfaces are contacted.Yet in the present invention, their part may be separated, or may separate all.By separating between each linkage section with spring terminal and electric signal input end, and they are connected by a kind of electrically connected method such as soldering, be electrically connected material such as solder can be on a roomy area on the linkage section of spring terminal lay.Like this, the bonding area between each linkage section has increased, thereby strength of joint is improved.
The present invention can use a kind of locating device that spring terminal is positioned with respect to electric signal input end on the direction vertical with its elastic deformation direction.Under this connection situation, the present invention not only can guarantee the accurate location on the elastic deformation direction, can also guarantee accurately to locate on perpendicular to the direction of elastic deformation direction.More specifically, this spring terminal can comprise a very thin insertion sheet, and this insertion sheet inserts in the through hole that is coupled on the electric signal input end.
In another aspect of the present invention, the contact site of spring terminal can comprise one and the contacted flange sections of reference surface.In this structure, spring terminal can stably be taken and put on reference surface, so that the precision of spring terminal perpendicular positioning further improves, and the operating efficiency that spring terminal is connected with electric signal input end is improved.
Above-mentioned and other purposes of the present invention and advantage will obtain setting forth more clearly by following description and with reference to accompanying drawing.
Fig. 1 is the longitudinal diagram of the electromagnetic sound generator of first embodiment of the invention;
Fig. 2 is the planimetric map of the electromagnetic sound generator of first embodiment of the invention;
Fig. 3 is the sectional view along III-the III line is intercepted;
Fig. 4 illustrates the spring terminal of first embodiment, and wherein 4a is a vertical view, and 4b is a front elevation and 4c is a side view;
Fig. 5 illustrates the spring terminal of second embodiment of the invention, and wherein 5a is a vertical view, and 5b is a front elevation and 5c is a side view;
Fig. 6 is the planimetric map of electromagnetic sound generator that comprises the spring terminal of second embodiment of the invention;
Fig. 7 illustrates the method for making of the spring terminal of third embodiment of the invention, and wherein 7a is a vertical view, and 7b is a front elevation and 7c is a side view;
Fig. 8 illustrates the spring terminal of four embodiment of the invention, and wherein 8a is a vertical view, and 8b is a front elevation and 8c is a side view;
Fig. 9 is the longitudinal diagram of the electromagnetic sound generator of the 5th embodiment of the present invention;
Figure 10 is fixed on the side view of the electromagnetic sound generator on the printed circuit board;
Figure 11 is the longitudinal diagram that is fixed on an example of the traditional electrical magnetosonic tone generator on the printed circuit board;
Figure 12 is the longitudinal diagram that is fixed on another example of the traditional electrical magnetosonic tone generator on the printed circuit board.
With reference to the accompanying drawings embodiment of the present invention are set forth.(1) first embodiment
Fig. 1～3 illustrate the electromagnetic sound generator (electroacoustics transducer) 11 of first embodiment.In electromagnetic sound generator 11, one can respond electric signal and the sound generator 12 of sounding is installed in columnar shell 13 and the 13b.One printed circuit board 14 is contained in the top of sound generator 12.A spring terminal 15 links to each other with "+" utmost point of circuit board 14 and the circuitous pattern at "-" utmost point place.The elastic sheet jack-knife of materials such as spring terminal 15 usefulness spring steel, stainless steel, beryllium copper, titanium copper and making.The end of spring terminal 15 is welded on the circuitous pattern 14a of printed circuit board (PCB) 14 with solder.Shell 13b makes one by suitable method of attachment as welding and shell 13, so as to make and the body 6 contacted shell lower surface 13b of electronic equipment and shell 13 on distance between the surperficial 13a keep constant.
When electromagnetic sound generator 11 was installed in the body 6 of mobile phone, shell lower surface 13b was fixed on the body 6 by a kind of suitable stationary installation, a two-sided adhesive tape that scribbles pressure sensitive adhesives as shown in fig. 1.After shell 13 and 13b are connected on the body 6, a printed circuit board 7 is installed in the top of spring terminal and parallel with body 6.Printed circuit board (PCB) 7 makes spring terminal 15 that elastic deformation, the circuitous pattern 7a Elastic Contact of its free end and printed circuit board (PCB) 7 take place.
As shown in Figure 3, at printed circuit board (PCB) 14 and circuitous pattern 14a place thereof a penetrated through via holes (locating device) 16 is arranged.Formed one and insert sheet 17 on the linkage section 15a of spring terminal 15, this inserts sheet crooked and extension towards the direction at sound generator 12 places.To insert earlier in the through hole 16 that sheet 17 is inserted into printed circuit board (PCB) 14, and then linkage section 15a will be welded on the circuitous pattern 14a.In this case, linkage section 15a does not directly contact with circuitous pattern 14a, but with small distance of its maintenance.Linkage section 15a is the upper surface of upper edge printed circuit board (PCB) 14 location by inserting sheet 17 and being inserted in the through hole 16 and in the horizontal direction.For the purpose of illustrative ease, in Fig. 1, represent through hole 16 with a circle.Through hole 16 can be similar to the shape of cross section that inserts sheet so that improve bearing accuracy.
When electromagnetic sound generator 11 is installed, will inserts shells 13 with the sound generator 12 that printed circuit board (PCB) 14 be made one and be connected thereto.Spring terminal 15 is inserted into by the insertion sheet 17 with linkage section 15a in the through hole 16 of printed circuit board (PCB) 14 and realizes horizontal location, and realizes perpendicular positioning by horizontal segment 15b is contacted with the upper surface 13a of shell 13.Under the situation that keeps above-mentioned positioning states, linkage section 15a is welded on the circuitous pattern 14a.
In the electromagnetic sound generator 11 of as above gained, spring terminal 15 is to contact with the upper surface 13a of shell 13 on the circuitous pattern 14a that is welded to printed circuit board (PCB) 14 under the situation of fitting at horizontal segment 15b.Therefore, when no-load, the vertical range between horizontal segment 15b and the contact site 15e (being the distance of H1 indication among Fig. 1) is always constant.Under electromagnetic sound generator 11 and printed circuit board (PCB) 7 have installed to situation in the body 6, the upper surface 13a of shell 13 and and the contacted circuitous pattern 7a of contact jaw 15e of spring terminal 15 between distance (H2 among the figure) also be constant.Therefore, the horizontal segment 15b of spring terminal 15 and the distance between the circuitous pattern 7a also are constant.So, the perpendicular positioning of spring terminal 15 can be very accurate, and it is also always constant to impose on the pressure of circuitous pattern 7a by contact site 15e.Electromagnetic sound generator 11 can present stable serviceability like this.
In addition, linkage section 15a and circuitous pattern 14a separate slightly so that solder can be on the roomy area of linkage section 15a lay, thereby increased bonding area around the linkage section 15a.Like this, the bond strength of this linkage section and electric conductivity are improved.
Moreover the insertion sheet 17 that forms on the linkage section 15a of spring terminal 15 is inserted in the through hole 16 of printed circuit board (PCB) 14, so spring terminal 15 can accurately be realized along the horizontal location on printed circuit board (PCB) 14 surfaces.When being welded to linkage section 15a on the circuitous pattern 14a, circuitous pattern 14a and linkage section 15a can carry out uniform heating by inserting sheet 17.Thereby be easy to implement solder, and brazing property can be improved.(2) second embodiments
Below with reference to Fig. 5 second embodiment is set forth, this scheme comprises the structure of the first embodiment medi-spring terminal 15.Spring terminal 25 among Fig. 5 has the basic structure that is included in the above-mentioned spring terminal 15.The both sides of horizontal segment 15b and two leg-of- mutton lugs 21 and 22 are made an integral body.Lug 21 and 22 and horizontal segment 15b contact with the upper surface 13a of shell 13 jointly together.As shown in Figure 6, spring terminal 25 is connected with the circuitous pattern 14a of printed circuit board (PCB) 14, and lug 21 and the 22 upper surface 13a along shell 13 extend. Lug 21 and 22 is with respect to the center line symmetry between spring terminal 25 and 25.In Fig. 5 a, the lower springs terminal in the solid line representative graph 6, the lug 21 and 22 of upper springs terminal 25 is represented in double dot dash line.
According to second embodiment because lug 21 and 22 and horizontal segment 15b contact with the upper surface 13a of shell 13 together, thereby make the position stability of spring terminal 25.Therefore the perpendicular positioning of spring terminal 25 can be more accurate, and the operating efficiency that simultaneously linkage section 15a is welded on the circuitous pattern 14a of printed circuit board (PCB) 14 can further improve.(3) the 3rd embodiments
Below with reference to Fig. 7 the 3rd embodiment is set forth, the operating efficiency of the comparable spring terminal 25 of the operating efficiency of this scheme further is improved.As shown in Figure 7, spring terminal 25 and 25 is not to make separately. Spring terminal 25 and 25 links together by a brace 31, and the two is connected as a single entity.Brace 31 connects two lugs 21 and extends along horizontal segment 15b.Spring terminal 25 and 25 is oriented to can be welded on circuitous pattern 14a and the 14a.Boundary between lug 21 and the brace 31 has been opened a v-depression 32.
Should be pointed out that brace 31 can be made by the insulating material of resin and so on.In this structure, after the circuitous pattern 14a that spring terminal 25 is welded to printed circuit board (PCB) 14 goes up, just do not need to remove again brace 31.Brace 31 is designed to make the electromagnetic sound generator be installed in the body 6 and can guarantee spring terminal 25 and circuitous pattern 7a between electric conductivity stable.(4) the 4th embodiments
Below with reference to Fig. 8 the 4th embodiment is set forth, this scheme comprises the structure of the first embodiment medi-spring terminal 15.Spring terminal 25 among Fig. 8 has the basic structure that is included in the above-mentioned spring terminal 15.Linkage section 15a and flexure strip are made one, and flexure strip 41 has replaced insertion sheet 17.This flexure strip 41 is seen as a U-shaped from the side.When the upper surface 13a that attaches to shell 13 as horizontal segment 15b went up, flexure strip 41 contacted with the circuitous pattern 14a of printed circuit board (PCB) 14 and elastic deformation takes place.Keep under the situation of this elastic deformation, flexure strip 41 is soldered on the circuitous pattern 14a with linkage section 15a.What need indicate is not need through hole 16 in the present embodiment, but can come retainer spring terminal 45 with through hole.
According to the 4th embodiment, the flexure strip 41 of spring terminal 45 is attached on the circuitous pattern 14a of printed circuit board (PCB) 14, can be so that electric conductivity is stable when connecting with assurance.(5) the 5th embodiments
Below with reference to Fig. 9 and Figure 10 the 5th embodiment is set forth.Label 51 is represented the electromagnetic sound generator of the 5th embodiment.In electromagnetic sound generator 51, the sound generator 52 that can respond the electric signal sounding is installed in the columnar shell 53.One printed circuit board 54 is housed on the top of sound generator 52.A spring terminal 55 links to each other with "+" utmost point of circuit board 54 and the circuitous pattern 54a at "-" utmost point place respectively.It is a dihedral that spring terminal 55 is looked from the side.This spring terminal 55 has the linkage section 55a that is welded on the circuitous pattern 54a.
Under the situation that linkage section has welded, spring terminal 55 horizontal-extendings are taken the horizontal segment 55b that puts on shell 53 upper surface 53a (reference surface) to form one section.Then, spring terminal 55 angled ground are crooked to form a curved section 55c, extend downwards so that form deformation section 55d from curved section 55c.End at deformation section 55d has formed a contact site 55e.The perpendicular positioning of spring terminal 55 is realized by contacting between the upper surface 53a that makes horizontal segment 55b and shell 53.
In electromagnetic sound generator 51, the lower surface of shell 53 is connected to by suitable coupling arrangement on the printed circuit board (PCB) 61 of electronic equipment, and this coupling arrangement can be a kind of two-sided adhesive tape that scribbles pressure sensitive adhesives as shown in Figure 10.In the case, the circuitous pattern 61a Elastic Contact of contact jaw 55e and printed circuit board (PCB) 61.
In electromagnetic sound generator 51, spring terminal 55 is soldered on the circuitous pattern 54a of printed circuit board (PCB) 54 under the contacted situation of the upper surface 53b of horizontal segment 55b and shell 53.Therefore when no-load, the vertical range between horizontal segment 55b and the contact site 55e is always constant.When electromagnetic sound generator 51 is connected on the printed circuit board (PCB) 61, the upper surface 53a of shell 53 and and the contacted circuitous pattern 61a of contact jaw 55e of spring terminal 55 between vertical range also be constant.Therefore, the horizontal segment 55b of spring terminal 55 and the distance between the circuitous pattern 61a are constant.Like this, the perpendicular positioning of spring terminal 55 can be very accurate, and it is always constant to make simultaneously contact jaw 55e impose on the pressure of circuitous pattern 61a.Thereby make the electromagnetic sound generator present stable performance.
Scope of the present invention is not limited to above-mentioned embodiment.For example, in the first embodiment, need only the invariant position of printed circuit board (PCB) 14 with respect to body 6, then printed circuit board (PCB) 14 also may be made one with shell 13.At this moment, being used for the reference surface of perpendicular positioning spring terminal 15 can be the upper surface of printed circuit board (PCB) 14, and linkage section 15a contacts with upper surface simultaneously.
Above-mentioned embodiment relates to the electromagnetic sound generator, and the example that these electromagnetic sound generators are electroacoustics transducer.The present invention is not limited to these embodiments.The present invention can be used for having on other electroacoustics transducers as other drive units such as power type and piezo-electric types.
As mentioned above, in electroacoustics transducer of the present invention, provide reference surface.Under situation about electroacoustics transducer being installed on the electronic equipment, the distance between the electrical signal of reference surface and installing component is total to keep constant.Spring terminal with the contacted situation of reference surface under link to each other with electrical signal.Therefore, spring terminal is accurately located on the elastic deformation direction, and the contact pressure between spring terminal and the electrical signal is always constant, and switching performance such as brazing property are improved simultaneously.
Claims (14)
1. electroacoustics transducer comprises:
One can respond input electrical signal and the sound generator of sounding, and this sound generator comprises electric signal input end;
A shell that is used to lay sound generator;
A spring terminal that links to each other with electric signal input end;
When electroacoustics transducer was installed on the installing component, an electrical signal of above-mentioned spring terminal and installing component contacted by elastic contact pressure therebetween;
It is characterized in that, a reference surface is provided, when electroacoustics transducer is installed on the installing component, this reference surface on the direction of spring terminal generation elastic deformation with the constant distance of electrical signal; And above-mentioned spring terminal adjoins joint with this reference surface and links to each other with the above-said current signal input end.
2. the electroacoustics transducer in the claim 1 is characterized in that above-mentioned reference surface is arranged on the above-mentioned shell.
3. the electroacoustics transducer in the claim 1 is characterized in that above-said current signal input end and above-mentioned shell make one, and described reference surface is arranged on the electric signal input end.
4. the electroacoustics transducer in the claim 1～3, it is characterized in that above-mentioned spring terminal comprises a linkage section, the above-said current signal input end also comprises a linkage section, and at least a portion of two linkage sections keeps away mutually, and each linkage section links to each other by a kind of conductive material.
5. the electroacoustics transducer in the claim 4 is characterized in that above-mentioned conductive material is a solder.
6. the electroacoustics transducer in the claim 1～5, each linkage section that it is characterized in that above-mentioned spring terminal and above-said current signal input end comprises a locating device, is used for spring terminal is positioned with respect to electric signal input end on the direction perpendicular to its elastic deformation direction.
7. the electroacoustics transducer in the claim 6, the locating device that it is characterized in that above-mentioned spring terminal is a projection, and the locating device of above-said current signal input end is a through hole.
8. the electroacoustics transducer in the claim 1～7 is characterized in that above-mentioned spring terminal comprises a contact site, is used for adjoining joint mutually with above-mentioned reference surface, and above-mentioned contact site comprises that a flange portion is in order to contact with reference surface.
9. the electroacoustics transducer in the claim 8 is characterized in that above-mentioned flange portion extends along reference surface.
10. the electroacoustics transducer in the claim 1～9 is characterized in that being provided with a pair of above-mentioned spring terminal, links to each other by a brace between two spring terminals.
11. the electroacoustics transducer in the claim 10 is characterized in that after being connected to above-mentioned spring terminal on the electric signal input end, above-mentioned brace is removed from spring terminal.
12. the electroacoustics transducer in the claim 10 is characterized in that brace makes with insulating material.
13. the electroacoustics transducer in the claim 1～12, it is characterized in that above-mentioned spring terminal comprises that one adjoins adjoining joining section and one and can the deformation section of elastic deformation taking place by contacting with installing component of joint with reference surface, and the elastic deformation direction of deformation section is for towards the direction of adjoining joining section.
14. the electroacoustics transducer in the claim 1～12, it is characterized in that above-mentioned spring terminal comprises that one adjoins adjoining joining section and one and can the deformation section of elastic deformation taking place by contacting with installing component of joint with reference surface, and the elastic deformation direction of deformation section is to keep away the direction of adjoining joining section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10100470A JPH11282473A (en) | 1998-03-27 | 1998-03-27 | Electro-acoustic transducer |
| JP100470/98 | 1998-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1231467A true CN1231467A (en) | 1999-10-13 |
| CN1230797C CN1230797C (en) | 2005-12-07 |
Family
ID=14274804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991044282A Expired - Fee Related CN1230797C (en) | 1998-03-27 | 1999-03-26 | Electro-acoustic transducer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH11282473A (en) |
| CN (1) | CN1230797C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437749C (en) * | 1999-10-22 | 2008-11-26 | 株式会社西铁城电子 | Sound producing apparatus such as telephone |
| CN101473369B (en) * | 2006-06-14 | 2012-06-27 | 法雷奥开关和传感器有限责任公司 | Ultrasound sensor, in particular, a motor vehicle ultrasound sensor |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8259967B2 (en) | 2008-04-28 | 2012-09-04 | Tsinghua University | Thermoacoustic device |
| US8259968B2 (en) | 2008-04-28 | 2012-09-04 | Tsinghua University | Thermoacoustic device |
| US8270639B2 (en) | 2008-04-28 | 2012-09-18 | Tsinghua University | Thermoacoustic device |
| CN101715160B (en) | 2008-10-08 | 2013-02-13 | 清华大学 | Flexible sound producing device and sound producing flag |
| US8300855B2 (en) | 2008-12-30 | 2012-10-30 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic module, thermoacoustic device, and method for making the same |
| US8325947B2 (en) | 2008-12-30 | 2012-12-04 | Bejing FUNATE Innovation Technology Co., Ltd. | Thermoacoustic device |
| CN101771922B (en) * | 2008-12-30 | 2013-04-24 | 清华大学 | Sounding device |
| CN101922755A (en) | 2009-06-09 | 2010-12-22 | 清华大学 | Heating wall |
| CN101943850B (en) | 2009-07-03 | 2013-04-24 | 清华大学 | Sound-producing screen and projection system using same |
| CN102034467B (en) | 2009-09-25 | 2013-01-30 | 北京富纳特创新科技有限公司 | Sound production device |
| TWI741395B (en) * | 2019-10-23 | 2021-10-01 | 音賜股份有限公司 | Method for installing electro-acoustic components on PCB and structure of electro-acoustic components |
-
1998
- 1998-03-27 JP JP10100470A patent/JPH11282473A/en active Pending
-
1999
- 1999-03-26 CN CNB991044282A patent/CN1230797C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437749C (en) * | 1999-10-22 | 2008-11-26 | 株式会社西铁城电子 | Sound producing apparatus such as telephone |
| CN101473369B (en) * | 2006-06-14 | 2012-06-27 | 法雷奥开关和传感器有限责任公司 | Ultrasound sensor, in particular, a motor vehicle ultrasound sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11282473A (en) | 1999-10-15 |
| CN1230797C (en) | 2005-12-07 |
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