CN201004712Y

CN201004712Y - A flexible wave for loudspeaker

Info

Publication number: CN201004712Y
Application number: CNU2007201054860U
Authority: CN
Inventors: 黄新民
Original assignee: SHENGYA ELECTRONIC CO Ltd NINGBO
Current assignee: SHENGYA ELECTRONIC CO Ltd NINGBO
Priority date: 2007-01-11
Filing date: 2007-01-11
Publication date: 2008-01-09
Anticipated expiration: 2017-01-11

Abstract

The utility model relates to a speaker elastic wave which consists of an inner circle and an outer circle that are connected through an elastic supporting bar. The utility model has the advantages: 1. Simplicity in product structure, which makes the manufacturing process simple, with once production, low waste rate. 2. Good product performance, which produces different piston stroke space with the change of the supporting bar radian, and provides even piston movement for the speaker to maintain the stability of the product performance. 3. Diversified shapes, which are convenient for designing the products conforming to the requirements. 4. Volume reduction for the speaker with a higher limit, which makes the speaker thinner and more flat, and enhances the beautiful appearance of the speaker unit. The flexible PCB or phosphor copper material leads are embedded in the elastic wave supporting bar, and the material is in possession of strong flexibility, thereby the structure is not easier to appear with breakage phenomenon.

Description

A kind of bullet ripple of loud speaker

Technical field

The utility model relates to a kind of parts of loud speaker, particularly a kind of bullet ripple of loud speaker.

Background technology

Contain the loud speaker that plays ripple, mainly form, play ripple to be connected on the voice coil loudspeaker voice coil, play connection and support the voice coil loudspeaker voice coil effect by voice coil loudspeaker voice coil, sound basin, bullet ripple etc., therefore not only its tonequality to loud speaker plays an important role, and needs certain stablizing constant elasticity but also need certain hot strength.The maximally related parts of the major parameter Fo value of loudspeaker (natural resonance point) are to play ripple, and the displacement that plays ripple directly influences the Fo of loudspeaker.

The cloth that existing bullet ripple is made into by cotton or staple fibre (staple fibre or blending separately) makes, in order to improve its intensity and enough elasticity to be arranged, need make the discoid wavy shaped configuration of the some ring bars of a surperficial tool, and with its impregnation phenolic resins, so complicate fabrication process, the manufacturing cost height.And the link that influences quality in the manufacture process too much influences the quality of product.Also owing to resin weather resisteant on the fiber is poor, through use after a while, elasticity can change, and therefore also can influence its quality.

In order to improve the existing hot strength that plays ripple, some improvement have been done to playing wave structure, as the disclosed a kind of bullet wave structure that prevents surging of Chinese patent literature CN1822716Y, it mainly is to use the bullet wave structure in loudspeaker, be connected with symmetrically arranged reinforcing body in playing the ripple body surface, and fix in playing to be combined with lead and to be combined with corresponding engagement means between ripple body and reinforcing body, and then can prevent that lead is when dismounting, vibrate for a long time or be subjected to improper the pullling of external force and come off, displacement, and bullet ripple body and reinforcing body are all elastic material institute interlacing and form, and the direction that the braiding lines that makes the braiding lines that plays the ripple body and reinforcing body is about 45 degree or special angle is mutually interlocked, can increase the structural strength of its vibration resistance, play the ripple body and produce protrusion of surface or the generation of rugged situation because of long-time vibration back to prevent it.

The disclosed a kind of bullet wave structure that prevents undesired vibrations of Chinese patent literature CN2826879Y and for example, principal character is to be covered with to possess flexible reinforcing chip on play ripple, it is less annular, bigger annular that this reinforcing chip can adopt various suitable forming materials, or the corresponding strip lamellar body that plays the ripple radius; The reinforcing chip of this different shape can be incorporated into the bullet wave surface respectively or simultaneously, use to promote playing intensity of wave, allow simultaneously play the stressed more average of ripple all directions, abnormal vibration take place to avoid playing ripple.

Though above-mentioned these improvement can increase certain intensity, its complex structure is made also complexity, and performance can not be greatly improved simultaneously.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the above-mentioned defective of prior art and bullet ripple that a kind of loud speaker is provided, makes its more reasonable structure, easily manufactured, stable performance, oscillating region big.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

A kind of loudspeaker play-wave is characterized in that: it is made up of inside and outside two circles, is connected by elastic support bars between inner ring and outer ring.

Above-mentioned elastic support bars becomes S shape, and bigger stroke space can be arranged like this, can produce different piston stroke because of the different radian of support bar again.The shape of support bar uniqueness makes very flexible space when playing wave motion, the intensity that certain centring disk can be arranged again simultaneously, make the voice coil loudspeaker voice coil that is attached thereto very accurate in locating return middle motion at the magnetic of loudspeaker, can be because centering is inhomogeneous double swerve and cause voice coil loudspeaker voice coil to wipe circle to produce different sound.

Above-mentioned elastic support bars also is a waveform, so also the stroke space can be arranged, and certain centering intensity can be arranged again.

Above-mentioned S type bracing frame and waveform support bar provide less external diameter that bigger piston action space can be arranged, and bracing frame can be even number, as 6, per two in pairs, because of the stress that shape produces can be offset because of symmetry.

If above-mentioned bullet ripple is with injection molded, can with the loudspeaker voice coil lead-in wire with soft PCB or phosphorus bronze sheet material do lead-in wire with the mode that may go into to penetrate directly with bullet ripple integrated injection molding.Because soft PCB is very thin very soft, have good flexible, can it is injection molded together in the support bar of S type with going into to penetrate.

Compared with prior art, advantage of the present utility model is:

1, product structure is simple, so production technology is simple, only need once make, and percent defective is low.

2, the performance of product is good, makes it to produce different piston stroke spaces because of the variation of support bar radian, and can offer the uniform piston action of loud speaker, makes properties of product stable.

3, shape can be multiple, is convenient to design satisfactory product.

4, also can be injection molded, the loudspeaker voice coil lead-in wire can be used with soft PCB or phosphorus bronze sheet material work lead-in wire and be embedded the direct and bullet ripple integrated injection molding of the mode that penetrates.Play in the ripple because lead-in wire is contained in, can not occupy the position between bulging paper and the bullet ripple, so can make loud speaker reduce height to a greater extent, it is very thin that loud speaker can be accomplished, very flat, strengthens the attractive in appearance of loudspeaker unit simultaneously.Also because soft PCB or phosphorus bronze sheet material work lead-in wire are to be bumped into playing ripple support bar the inside, body greenwood matter has stronger toughness, the phenomenon of the more difficult generation fracture of this structure.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the structural representation of another embodiment of the utility model.

Fig. 3 is the structural representation of the another embodiment of the utility model.

Fig. 4 is the structural representation of the another embodiment of the utility model.

Fig. 5 is the structural representation of the another embodiment of the utility model.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, the bullet ripple of loud speaker, it is made up of inner ring 1,

outer ring

2, and 2 of inner ring 1 and outer rings are connected 3 one-tenth S shapes of described elastic support bars by elastic support bars 3.

Above-mentioned support bar 3 is the even number bar, in

inner ring

1,2 distributions in outer ring, can be made as 6 along circumference according to the intensity needs, per two in pairs, will can offset because of symmetrical because of the stress that shape produces like this.S type support bar can also be increased to 8,10 or the like because of the needs of intensity.

Described S type elastic support bars also can as Fig. 2, or be extended, as shown in Figure 3 from big to small from inner lane 12 ascending extensions to the outer ring.Be preferably ascending.

It is big that the width of above-mentioned S type support bar 3 and thickness can become from the inside to surface gradually.

Described elastic support bars also can be waveform, as shown in Figure 4, is also that accordingly the even number bar forms, as 6,8,10 or the like,

It is big that the width of support bar and thickness can become gradually.

The width of support bar and thickness can diminish gradually.

The width of support bar and thickness can be widened in optionally comprehensive overstriking.

The material of above-mentioned bullet ripple can injection molded by thermoplastic plastic (comprising elastomer and engineering plastics).

The test data of the bullet ripple of the structure of the present invention that is made by elastomer and the bullet ripple of existing structure sees Table 1, and it is that mesopore place playing ripple imposes certain weight that the displacement that plays ripple records, and sees the distance of its off center point.And playing the centring disk function of ripple as loudspeaker, loudspeaker need the piston motion of uniform balance when doing up and down piston action.

As can be seen from Table 1, TPEE brings up it and can provide bigger piston space under less external diameter condition owing to the support moulding.Tradition plays ripple displacement shakiness, and displacement differs greatly.Relative, though the displacement of novel bullet ripple is bigger, the displacement difference of maximum and minimum value is less, represents novel bullet ripple comparatively stable.

This shape can make the stroke of loudspeaker bigger, can find out that this plays material and its unique shape that ripple uses by the displacement data of novel bullet ripple and tradition bullet ripple, when allowing loudspeaker make up-down vibration, the whole suspension of loudspeaker can be done well-proportioned up-down vibration, and can reach maximum amplitude.

The displacement data of table 1 novel plastic bullet ripple and traditional cloth matter bullet ripple

Test condition is: temperature: 13 ℃ of humidity: 52%
Test condition is: temperature: 13 ℃ of humidity: 52%				Tradition plays ripple displacement (50 gram loading)		TPEE bullet ripple displacement (50 gram loading)
1.18		2.35		Tradition plays ripple displacement (50 gram loading)		TPEE bullet ripple displacement (50 gram loading)
1.18		2.35		0.94		2.3
0.95		2.4		0.94		2.3
0.95		2.4		1.11		2.47	Maximum
1.12		2.37		1.11		2.47	Maximum
1.12		2.37		1.17		2.36
0.96		2.37		1.17		2.36
0.96		2.37		1.09	Central value	2.38
1.11		2.39		1.09	Central value	2.38
1.11		2.39		1.21		2.3
1		2.38		1.21		2.3
1		2.38		1.26		2.26
1.29	Maximum	2.35	Central value	1.26		2.26
1.29	Maximum	2.35	Central value	0.99		2.32
0.95		2.33		0.99		2.32
0.95		2.33		1.15		2.3
0.92	Minimum value	2.3		1.15		2.3
0.92	Minimum value	2.3		1.23		2.31
0.99		2.4		1.23		2.31
0.99		2.4		1.17		2.25	Minimum value
1.0895	Average	2.345	Average	1.17		2.25	Minimum value
1.0895	Average	2.345	Average	0.37	(maximum and minimum) is poor	0.22	(maximum and minimum) is poor

Claims

1, a kind of loudspeaker play-wave is characterized in that: it is made up of inside and outside two circles, is connected by elastic support bars between inner ring and outer ring, and elastic support bars evenly distributes along circumference.

2, loudspeaker play-wave as claimed in claim 1 is characterized in that: described support bar becomes S shape or waveform.

3, loudspeaker play-wave as claimed in claim 2 is characterized in that: described S shape support bar has the even number bar, per two in pairs.

4, as claim 1 or 2 or 3 described loudspeaker play-waves, it is characterized in that: described support bar is descending to stretch out.

5, as claim 1 or 2 or 3 described loudspeaker play-waves, it is characterized in that: the voice coil leads that embeds soft PCB or phosphorus bronze sheet in the described support bar is injection molded into one.

6, loudspeaker play-wave as claimed in claim 4 is characterized in that: the voice coil leads that embeds soft PCB or phosphorus bronze sheet in the described support bar is injection molded into one.