CN1662099A - Electroacoustic transducer - Google Patents
Electroacoustic transducer Download PDFInfo
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- CN1662099A CN1662099A CN 200410086392 CN200410086392A CN1662099A CN 1662099 A CN1662099 A CN 1662099A CN 200410086392 CN200410086392 CN 200410086392 CN 200410086392 A CN200410086392 A CN 200410086392A CN 1662099 A CN1662099 A CN 1662099A
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- voice coil
- electroacoustic transducer
- terminal hole
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Abstract
The objective of the invention is to provide an electroacoustic transducer which can freely change a place that is possible to take conduction with exterior within a frame, and can reduce the cost.The electroacoustic transducer is provided with a vibration cone 20, a voice coil 22 fixed to the vibration cone 20, a magnetic circuit unit 30 which forms a magnetic field for moving the voice coil 22, and a frame 10 supporting the vibration cone 20. A plurality of terminal holes are prepared on the frame 10, a pair of terminal pin components 40 which are possible to insert in each terminal hole, and are possible to connect terminal wires of the voice coil 22, are prepared, and an insertion position of respective terminal pin components 40 is possible to be changed out of the terminal holes.
Description
Invention field
The present invention relates to a kind of electroacoustic transducer of output sound.
Background technology
Up to now, the electroacoustic transducer as output sound has loud speaker, and as its a kind of execution mode, dynamic speaker is known.Generally, dynamic speaker has: oscillating plate is fixed with voice coil loudspeaker voice coil; And, be formed for making the magnetic field of voice coil loudspeaker voice coil vibration by the magnetic circuit unit that magnetite etc. constitutes.In addition, dynamic speaker also has: framework, the peripheral end of maintenance oscillating plate; And the pedestal that the round-ended cylinder shape is arranged, keep magnetic circuit unit.For example, disclose such loud speaker in the patent documentation 1, the pair of terminal parts promptly have been installed on framework, but on each terminal component, be fixed with to conducting from the extended pair of lead wires of voice coil loudspeaker voice coil.
Patent documentation 1: the spy opens the 2002-354582 communique
This electroacoustic transducer need make electric current flow through voice coil loudspeaker voice coil, thereby forms magnetic field, and need provides electric current from the outside for this reason.Therefore, in existing electroacoustic transducer, tabular binding post (terminal) is set on framework, on a side end face of this binding post, connects the end line of voice coil loudspeaker voice coil, on the other hand, on the end face of an opposite side, connect lead-in wire etc., thereby carry out conducting with the outside.
But the framework of such electroacoustic transducer is the framework that has binding post that together forms by the grafting moulding with binding post, so the position of the binding post on the framework is fixed, can't change the position of binding post.Therefore, in the process of existing electroacoustic transducer on being assembled to electronic equipment, when owing to the outside carry out conducting lead-in wire the position or when wanting to change the binding post position with the relation of miscellaneous part, can only change the direction or the position of electroacoustic transducer itself.Therefore, existing electroacoustic transducer is when electronic equipment assembles, and complicated operation is particularly under the situation of assembling on the such miniaturized electronics of mobile phone, because the space of assembling electroacoustic transducer is very little, so such problem is more outstanding.
And, such framework that has binding post, owing to make by the grafting moulding, so the manufacturing cost height, this also becomes the reason that the electroacoustic transducer cost raises.
Therefore, the present invention proposes for addressing the above problem, and its purpose is to provide a kind of and can freely changes in framework and the outside position of conducting and the electroacoustic transducer that can reduce cost of carrying out.
Summary of the invention
In order to deal with problems, the invention provides a kind of electroacoustic transducer, be equipped with: oscillating plate, be fixed on voice coil loudspeaker voice coil on this oscillating plate, be formed for making the magnetic circuit unit in magnetic field of this voice coil loudspeaker voice coil vibration and the framework of supporting oscillating plate, it is characterized in that, framework has a plurality of terminal holes, this electroacoustic transducer has and can insert in each terminal hole, and the pair of terminal parts that can be connected with the end line of voice coil loudspeaker voice coil.
This electroacoustic transducer is owing to having formed a plurality of terminal holes, so can freely change the position of inserting each terminal component therein on framework.The end line that can on the pair of terminal parts in inserting each terminal hole, connect in addition, voice coil loudspeaker voice coil.
Above-mentioned each terminal component has the main part that is used for the head that is connected with the end line of voice coil loudspeaker voice coil and extends and insert terminal hole from this head, an opposite side end with head of main part is outstanding from framework, becomes the terminal for connecting portion with the outside conducting parts of outside conducting.
Like this, in inserting terminal hole after, the end line of voice coil loudspeaker voice coil can be connected on the head of terminal component, outside conducting parts are connected with terminal for connecting portion.
The head of each terminal component can form than big flange shape of terminal hole.
Thus, in inserting terminal hole after, the end line of voice coil loudspeaker voice coil is connected with the head of terminal component reliably.
In addition, preferably on the end face of terminal for connecting portion, be formed for the groove that outside conducting parts are clipped in the middle.
Like this, in the time of on the end face that is connected to terminal for connecting portion, outside conducting parts can be clipped in the groove, thereby position.
In addition, preferably the main part of each terminal component between head and terminal for connecting portion, has the wide diameter portion that width is bigger than terminal hole internal diameter, can be pressed into the size in the terminal hole.
Like this, terminal component can be pressed in the terminal hole.
Preferred framework has following offset configuration structure, and promptly each terminal hole is configured on the position different with the distance of magnetic circuit unit.
Like this, owing to guaranteed and the different terminal hole of magnetic circuit unit distance, so can enlarge the scope that can change the binding post position.
According to the present invention, can access in framework, freely to change and carry out the position of conducting and the electroacoustic transducer that can reduce cost with the outside.
Description of drawings
Cutaway view under Fig. 1 state that to be expression dispose the electroacoustic transducer of embodiment of the present invention up.
Fig. 2 is the vertical view of the framework that uses in the electroacoustic transducer of Fig. 1.
Fig. 3 is the vertical view of another framework of expression.
Fig. 4 is the oblique view that is illustrated in the terminal pins parts that use in the electroacoustic transducer of Fig. 1.
Fig. 5 is the end view that is illustrated in the terminal pins parts that use in the electroacoustic transducer of Fig. 1.
Fig. 6 is the vertical view that is illustrated in the terminal pins parts that use in the electroacoustic transducer of Fig. 1.
Fig. 7 is the cutaway view that being inserted into of representational framework is fixed with the part of terminal pins parts.
Fig. 8 (a) be expression will be used for the outside lead-in wire soldering of carrying out conducting on the terminal pins parts and carry out the vertical view of connection status, (b) be expression will be used for the outside helical spring soldering of carrying out conducting on the terminal pins parts and carry out the vertical view of connection status.
Fig. 9 (a) is the vertical view that expression has the terminal pins parts of cross-shaped slot part, (b) be the oblique view of another terminal pins parts of expression, (c) being the oblique view that expression does not have the terminal pins parts of head, (d) is the oblique view of another terminal component of expression.
Figure 10 (a) is a cutaway view of representing state on the leaf spring that the terminal pins parts are fixed on, (b) is the vertical view of the leaf spring of expression (a).
Embodiment
Following with reference to accompanying drawing, preferred implementation of the present invention is elaborated.In the description of the drawings, identical or suitable key element is marked with identical label, the slightly repeat specification of inquiring after the health of one's parents.
Fig. 1 is the cutaway view that is illustrated under the state that the electroacoustic transducer 1 with embodiment of the present invention disposes up.Personal digital assistant) etc. the electroacoustic transducer 1 of present embodiment is that external diameter is the path dynamic speaker about 10mm～20mm, is assemblied in mobile phone or portable PDA (Personal Digital Assistants: in the miniaturized electronics and use.
Electroacoustic transducer 1 is on framework 10, and face side is installed oscillating plate 20 and lid 21 from it, and magnetic circuit unit 30 is installed and constitutes from its lower face side.
Framework 10 uses for example materials such as synthetic resin of polyamide series, form by injection molding, as shown in Figure 2, be that linearity edge part 10a, the 10a and the indicatrix ellipse of crooked edge part 10b, 10b that have in opposite directions are tabular, in the central, have the size circular open portion 10c bigger than voice coil loudspeaker voice coil 22 profiles described later.In addition, framework 10 is configured to each terminal hole 13 described later and surrounds magnetic circuit unit 30, has with magnetic circuit unit 30 distances to be different offset configuration structures, and its distance is respectively h1, h2, h3, h4.
As shown in Figure 1, this framework 10 has ring-type par 11, surrounding wall portion 12 and terminal hole 13, under the state of lid 21 sides configuration, oscillating plate 20 and lid 21 is installed in surrounding wall portion 12.Ring-type par 11 is to surround the circular open 10c of portion and the smooth plate portion that disposes, and a plurality of (among the figure being 14) terminal hole 13 forms along circumferential array.Surrounding wall portion 12 is high parts in neighboring of aspect ratio ring-type par 11, has the outstanding protuberance 12a for the circumference that keeps oscillating plate 20 in its outside.
Each terminal hole 13 is terminal pins parts 40,40 and being provided with in order to insert fixing pair of terminal parts described later, it forms the pipe shape that connects ring-type par 11, has roughly the same internal diameter (being of a size of W), in framework 10, all terminal holes 13 form with identical size.In addition, each terminal hole 13 forms the chamfer machining 13b of portion as shown in Figure 7, and the 13b of this chamfer machining portion carries out suitable cut to the peripheral part on the upper surface side with surrounding wall portion 12 of ring-type par 11 and forms.The root corresponding shape of the aftermentioned main part 42 of the 13b of this chamfer machining portion formation and terminal pins parts 40.
In addition, each terminal hole 13 also has the air vent hole effect that the backside space that is used to prevent oscillating plate 20 (oscillating plate 20 with louver 21d the opposed surface on surface) in opposite directions is sealed.Thus, can reduce windscreen (air damper) effect of oscillating plate 20 backside spaces.
Each terminal pins parts 40 is made by the conductivity good metal, and shown in Fig. 4 and Fig. 5,6, it has thin plate flange shape head 41 and main part 42.Head 41 forms size than big thin roughly discoideus of terminal hole 13 internal diameters, and it has the notch part 41a with a part of linearity excision of circumference, and central authorities are formed with main part 42 at the one side surface.
Main part 42 forms at a side surface of head 41, has the big size of thickness than the ring-type par 11 of framework 10, and has large diameter part 43, small diameter part 44 and terminal for connecting portion 45, and its section with the direction of axle quadrature is roughly elliptical shape.The width of large diameter part 43 is bigger slightly than the internal diameter W of terminal hole 13, forms the width W 1 of the internal face 13a that can be pressed into terminal hole 13, thereby is formed on the surplus of inserting when being fixed in the terminal hole 13 that is pressed into.Small diameter part 44 forms the width width W 2 slightly littler than terminal hole internal diameter W (W1＞W＞W2).
Terminal for connecting portion 45 be when inserting terminal pins parts 40 in the terminal holes 13 from the ring-type par 11 outstanding parts, it is lead-in wire or the helical spring that is used to connect as outside conducting parts, thereby makes electroacoustic transducer 1 and the outside binding post that carries out conducting.This terminal for connecting portion 45 has suitable thickness, in the central authorities of end face, along notch part 41a, has that form can be with the slot part 46 of lead-in wire or the width that is clipped in the middle of helical spring.
When each terminal pins parts 40 inserts in the terminal hole 13 when being fixed in the framework 10 by being pressed into, under this state, but can by methods such as hot binding with the end line 22a conducting of voice coil loudspeaker voice coil 22 be fixed on the head 41, on the other hand, but can with lead-in wire or helical spring conducting be fixed in the terminal for connecting portion 45.
As substituting of slot part 46, these terminal pins parts 40 can have the cross-shaped slot part 47 shown in Fig. 9 (a).In addition, shown in Fig. 9 (b),, can use terminal pins parts 48 with square head portion 48a and main part 48b as substituting of terminal pins parts 40.In addition, shown in Fig. 9 (c), can use does not have the terminal pins of head 41 parts 49 yet.In addition, though do not illustrate among the figure, any one terminal pins parts can use the terminal pins parts that main part carried out annular knurl processing.In addition,, but outside conducting parts are directly installed on the terminal pins parts 40 by methods such as crimping or welding even do not form slot part 46 or slot part 47, also can be with terminal for connecting portion 45 as carrying out the binding post of conducting with the outside and using.
In addition, shown in Fig. 9 (d),, can use the terminal component 50 that the sheet material bending is formed as terminal component of the present invention.This terminal component 50 preferably has main part 50a, and has the width wide width part 50b bigger than the aperture of terminal hole 13 on this main part 50a.Thus, can prevent that terminal component 50 from coming off from terminal hole 13.
Voice coil loudspeaker voice coil 22 has than magnetite 31 and the big size of yoke 32 profiles, and its upper end is fixed on the oscillating plate 20, under this state, forms its lower end and is contained in size between magnetite 31 and yoke 32, the pedestal 35 (surrounding wall portion 35b).
Between this yoke 32 and pedestal 35, guarantee to have the annular gap of configurable voice coil loudspeaker voice coil 22, by means of this gap, can guarantee to be used to accommodate the circular magnetic gap of voice coil loudspeaker voice coil 22 bottoms.
Electroacoustic transducer 1 uses above each parts, constitutes in the following manner.That is, the oscillating plate of having fixed voice coil loudspeaker voice coil 22 20 of electroacoustic transducer 1 and lid 21 use the binding agent of regulation, and be fixing with respect to surrounding wall portion 12 combinations of framework 10.In addition, magnetite 31 and yoke 32 be in conjunction with also being fixed on the bottom 35a of pedestal 35, and magnetite 31 and yoke 32 be housed in the inboard of voice coil loudspeaker voice coil 22, and pedestal 35 embeds in the frameworks 10 then.
In addition, by pair of terminal pin parts 40 are pressed in any one of each terminal hole 13, each terminal pins parts 40 inserts and is fixed in the framework 10, and the end line 22a of voice coil loudspeaker voice coil 22 fixes by hot binding with respect to the head 41 of these terminal pins parts 40, thereby obtains electroacoustic transducer 1.
In addition, but electroacoustic transducer 1 with respect to conducting be fixed with each terminal pins parts 40 of end line 22a, but be fixed in its terminal for connecting portion 45 with will going between 27 conductings, can guarantee thus and outside conducting.At this moment, lead-in wire 27 is connected by the soldering that utilizes scolding tin a with the slot part 46 of terminal pins parts 40 shown in Fig. 8 (a).Replace going between at 27 o'clock at the connection helical spring, shown in Fig. 8 (b), also connect by the soldering that utilizes scolding tin a.
In addition, as substituting of lead-in wire 27, shown in Figure 10 (a) and (b), can use leaf spring 52.This leaf spring 52 has the hole (not shown) that can embed terminal for connecting portion 45, and terminal for connecting portion 45 embeds in this hole, but fixes to conducting by the soldering that utilizes scolding tin a then.Under the situation of using this leaf spring 52, different with Figure 10 (b), slot part 46 can be set in terminal for connecting portion 45.In addition, can make leaf spring 52 form the shape that can embed slot part 46, but utilize methods such as scolding tin a or crimping to come it is fixed then with carrying out conducting.
Electroacoustic transducer 1 with this spline structure is because framework 10 has a plurality of terminal holes 13, so can set a plurality of insertion positions of terminal pins parts 40.And, when being fixed on 40 insertions of terminal pins parts in each terminal hole 13, in the time of can considering to be assemblied on the electronic equipment and the direction of the configuration relation of other terminal components, electroacoustic transducer 1 etc., selection is positioned at the terminal hole 13 of optimum position, then terminal pins parts 40 is inserted in this terminal hole 13.These terminal pins parts 40 can connect the end line 22a of voice coil loudspeaker voice coil 22 and be used for lead-in wire 27 with external communications, are used for carrying out the effect of the binding post of conducting with outside thereby have.Therefore, electroacoustic transducer 1 can freely change and outside position of carrying out conducting in each terminal hole 13 in framework 10, is used for and the outside position change degree of freedom of carrying out the binding post of conducting thereby improved.
In addition,,, can reduce cost, therefore, can reduce the manufacturing cost of electroacoustic transducer 1 so compare with the framework that prior art is provided with terminal like that because terminal pins parts 40 and framework 10 are parts independent of each other.
In addition, terminal pins parts 40 have head 41, this head 41 forms than big flange shape of terminal hole 13, even after therefore in inserting terminal hole 13, also can easily and carry out the connection of voice coil loudspeaker voice coil end line reliably, and, be used for and the outside lead-in wire that carries out conducting so can connect reliably owing to have the terminal for connecting portion 45 of giving prominence to from framework 10.And, owing in terminal for connecting portion 45, form the slot part 46 that lead-in wire can be clipped in the middle, thus the cable guide of wanting to connect can be positioned in slot part 46, but be fixed in the terminal for connecting portion 45 with will going between conducting then.Thus, can be easily and the connection that goes between reliably.
On the other hand, because terminal pins parts 40 have large diameter part 43, this large diameter part 43 forms the surplus that is pressed into when inserting in the terminal hole 13, so terminal pins parts 40 can be pressed in the terminal hole 13.Therefore, be pressed into surplus by means of this, terminal pins parts 40 can be fixed in the framework 10 reliably.In addition, because terminal hole 13 has the 13b of chamfer machining portion, thus even form burr at main part 42 roots, terminal pins parts 40 are closely contacted with terminal hole 13 in the fabrication stage, thus insert fixing reliably.
In addition, form above-mentioned indicatrix ellipse shape, thereby form the different offset configuration structure in terminal hole 13 positions, it is hereby ensured and the different terminal hole 13 of magnetic circuit unit 30 distances by making framework 10.Thus, enlarge the scope that in framework 10, can change the binding post allocation position, thereby improved the position change degree of freedom of binding post.
Electroacoustic transducer 1 of the present invention is not limited to have the situation of the such indicatrix ellipse shape framework of said frame 10.For example, also can use the present invention for the electroacoustic transducer that uses circular frame 15 shown in Figure 3.The structure of this framework 15 is compared with framework 10, has the different circular ring-type par 16 in shape and ring-type par 11, and each terminal hole 13 is identical with the distance of magnetic circuit unit 30, the number difference of each terminal hole 13 (12), and other structures in addition are identical.When using this framework 15, for its form fit, can change the shape of parts such as oscillating plate and lid.
The number of the terminal hole 13 of any one in framework 10, the framework 15 is not limited to above-mentioned number.Can consider the size of terminal pins parts 40 and increase or reduce, but preferred setting can be surrounded the number of magnetic circuit unit 30 degree.The scope that thus, can appropriate expansion can change the binding post allocation position.
Claims (8)
1. electroacoustic transducer is equipped with: oscillating plate, is fixed on voice coil loudspeaker voice coil on this oscillating plate, is formed for making the magnetic circuit unit in magnetic field of this voice coil loudspeaker voice coil vibration and the framework of supporting above-mentioned oscillating plate, it is characterized in that,
Said frame has a plurality of terminal holes,
This electroacoustic transducer has and can insert in above-mentioned each terminal hole, and the pair of terminal parts that can be connected with the end line of above-mentioned voice coil loudspeaker voice coil.
2. electroacoustic transducer according to claim 1 is characterized in that,
Above-mentioned each terminal component has and is used for the head that is connected with the end line of above-mentioned voice coil loudspeaker voice coil and extends and insert the main part of above-mentioned terminal hole from this head,
An opposite side end with above-mentioned head of aforementioned body portion is outstanding from said frame, becomes the terminal for connecting portion with the outside conducting parts of outside conducting.
3. electroacoustic transducer according to claim 2 is characterized in that,
The above-mentioned head of above-mentioned each terminal component forms than big flange shape of above-mentioned terminal hole.
4. electroacoustic transducer according to claim 2 is characterized in that,
On the end face of above-mentioned terminal for connecting portion, be formed for the groove that said external conducting parts are clipped in the middle.
5. electroacoustic transducer according to claim 3 is characterized in that,
On the end face of above-mentioned terminal for connecting portion, be formed for the groove that said external conducting parts are clipped in the middle.
6. electroacoustic transducer according to claim 4 is characterized in that,
The main part of above-mentioned each terminal component between above-mentioned head and above-mentioned terminal for connecting portion, has the wide diameter portion that width is bigger than above-mentioned terminal hole internal diameter, can be pressed into the size in the above-mentioned terminal hole.
7. electroacoustic transducer according to claim 5 is characterized in that,
The main part of above-mentioned each terminal component between above-mentioned head and above-mentioned terminal for connecting portion, has the wide diameter portion that width is bigger than above-mentioned terminal hole internal diameter, can be pressed into the size in the above-mentioned terminal hole.
8. according to any described electroacoustic transducer of claim 1 to 7, it is characterized in that,
Said frame has following offset configuration structure, and promptly above-mentioned each terminal hole is configured on the position different with the distance of above-mentioned magnetic circuit unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004053358A JP2005244730A (en) | 2004-02-27 | 2004-02-27 | Electroacoustic transducer |
| JP2004053358 | 2004-02-27 | ||
| JP2004-053358 | 2004-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1662099A true CN1662099A (en) | 2005-08-31 |
| CN1662099B CN1662099B (en) | 2010-11-10 |
Family
ID=35011118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410086392 Expired - Fee Related CN1662099B (en) | 2004-02-27 | 2004-10-27 | Electroacoustic transducer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005244730A (en) |
| CN (1) | CN1662099B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102598711A (en) * | 2009-10-29 | 2012-07-18 | 松下电器产业株式会社 | Speaker, and electronic apparatus and cellular phone using the speaker |
| CN108566609A (en) * | 2018-07-25 | 2018-09-21 | 歌尔股份有限公司 | sound-producing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055623B (en) * | 2017-11-10 | 2021-01-15 | 瑞声科技(新加坡)有限公司 | Sound production device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850719Y2 (en) * | 1979-07-17 | 1983-11-18 | 日本電気株式会社 | speaker |
| JPS57148983U (en) * | 1981-03-12 | 1982-09-18 | ||
| JPH0510478Y2 (en) * | 1986-03-24 | 1993-03-15 | ||
| JPH03113598U (en) * | 1990-03-07 | 1991-11-20 | ||
| JP3262688B2 (en) * | 1995-04-06 | 2002-03-04 | アルパイン株式会社 | Connection terminal for electronic equipment |
| CN2379985Y (en) * | 1999-08-12 | 2000-05-24 | 黄恩志 | Structural improvement of diaphragm of loudspeaker |
| CN2464037Y (en) * | 2001-01-03 | 2001-12-05 | 力元电子股份有限公司 | Loudspeaker |
| JP3502077B2 (en) * | 2001-09-11 | 2004-03-02 | フオスター電機株式会社 | Electroacoustic transducer |
-
2004
- 2004-02-27 JP JP2004053358A patent/JP2005244730A/en active Pending
- 2004-10-27 CN CN 200410086392 patent/CN1662099B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102598711A (en) * | 2009-10-29 | 2012-07-18 | 松下电器产业株式会社 | Speaker, and electronic apparatus and cellular phone using the speaker |
| CN102598711B (en) * | 2009-10-29 | 2015-02-25 | 松下电器产业株式会社 | Speaker, and electronic apparatus and cellular phone using the speaker |
| CN108566609A (en) * | 2018-07-25 | 2018-09-21 | 歌尔股份有限公司 | sound-producing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005244730A (en) | 2005-09-08 |
| CN1662099B (en) | 2010-11-10 |
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Granted publication date: 20101110 Termination date: 20121027 |