CN102572656B

CN102572656B - Ribbon speaker

Info

Publication number: CN102572656B
Application number: CN201010622678.5A
Authority: CN
Inventors: 毛里齐奥·塞尔瓦迪奥
Original assignee: Ask Industries SpA
Current assignee: ASK工业S PA; Ask Industries SpA
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2016-06-22
Anticipated expiration: 2030-12-30
Also published as: CN102572656A

Abstract

The present invention relates to a kind of ribbon speaker。This ribbon speaker (101), including: the belt (2) being made of an electrically conducting material；It is arranged on the damping system (4) of at least one end of conduction belt (2)；And two rigid support things (103) of fixing belt (2) end。Described damping system (4) including: the suspension being made up of at least one distribution (105), described belt (2) is connected to the anchoring members (107) of described distribution (105), and is operably connected to described distribution to produce the elastomeric element (150) of mechanical stress。

Description

Ribbon speaker

Technical field

This relates to a kind of ribbon speaker for the patent application of industrial invention, it is especially useful in speaker and mike。

Background technology

Generally, ribbon speaker is fixed to rigid support thing in their end, is tightened up in this way with vibration and produces acoustical signal。

But, the service life of the ribbon speaker of these types is short, because they tend to tearing during operation, or because of the performance degradation along with tension recovery。

These problems are solved by European patent EP 0404487 (Celestion) at least in part, it discloses the elastic damping element of a kind of template and are adhered to a part for belt near its end。Under any circumstance, the end of belt and the end of flexible member are all fixed to rigid support element。

Solution disclosed in EP0404487 is weakened by several shortcomings。

Belt can not be suitably tensioned, and otherwise flexible member will come off from belt。For this, it is impossible to the performance obtained, and can not as required and the type of sound to produce to arrange the tension force of belt。

Belt only has unilateral asymmetric bending, and result elastic damping element has limited movement relative to constraint。Therefore, when multi-direction stress, for instance relative to the orthogonal dispersion of the belt longitudinal axis, belt is likely to break。

Elastic damping element is flat, nonconducting (not therefore being active), and has the width identical with conduction belt。Therefore, the spurious emissions that elastic damping element introducing unsymmetry and major part are caused by its geometry。It is true that this flexible member can effectively with Air Coupling produce sound, in this case, this sound interference should be actually uniquely produce the main source (by the sound that belt is launched) of sound。

This system is characterized by assembling complexity, because it provides two anchor points to rigid support thing。It is true that the end of the end of belt and flexible member must be attached to rigid support thing。Further, it is necessary to damping material is inserted the fold domain of belt to reduce machinery and acoustic interference。

US Patent No. 5,081,683 discloses a kind of suspension for wafer speaker, and its scheme also apply be applicable to banding speaker。

Summary of the invention

It is an object of the invention to by designing the shortcoming that a kind of reliable, efficient, effective and easily fabricated and assembling ribbon speaker eliminates prior art。

It is a further object of the present invention to provide such ribbon speaker, it is readily able to install and suitably tension, it is ensured that good sound quality and long service life。

These purposes are had been realized in by technical scheme。

Preferred embodiment disclosed in technical scheme 1。

The ribbon speaker of the present invention includes:

The belt being made of an electrically conducting material, and include two ends；

It is arranged on the damping system of at least one end of conduction belt；And

Two rigid support things of fixing belt end。

Described damping system includes:

Being joined thread suspension arrangement by least one, the head at described suspension arrangement two ends has the first shank and has the second shank of higher diameter；

For the anchoring members that described conduction belt is connected with described suspension arrangement, and

Elastomeric element, between stopping surface and second shank of described suspension arrangement of the electrical pickoff in the base holder of described rigid support thing, to produce mechanical tension。

Another preferred embodiment disclosed in technical scheme 2。

The ribbon speaker of the present invention includes:

It is arranged on the damping system of at least one end of described conduction belt；And

Two rigid support things of fixing described conduction belt ends；

Described damping system includes:

Joined thread suspension arrangement by least one elasticity, be used for producing mechanical tension, and

For the anchoring members that described conduction belt is connected with described suspension arrangement。

This elastic damping element is connected to the solution of distribution and compared with prior art has several advantage。

Obtaining deformation (it is necessary for moving) for belt in the end of conduction belt, it is relative to the axial symmetry of pull strength, this positive and negative vibration allowing also to dynamically balance speaker。

The distribution being arranged on belt ends is acoustics inertia, because their radiating surface is very little and has circular contour, therefore there is low-down machinery-acoustic impedance (sound of difference produces ability), to the linear and almost nil spurious emissions (sound of inappropriate transmitting) that speaker is very high。

The speaker of the present invention allows by only straining belt in the end of belt two contrary power of applying so that give mechanical stability and apparent rigidity that belt otherwise can not realize。This high pull strength can also compensate the notable stretching caused by heat and mechanical stress。The power applied in end can represent with about 10Kg, but this power depends on giving the sound property of system (such as, in conjunction with high mechanical damping, by straining with 20Kg, obtain high resonant frequency, if power is relatively low, for instance 2Kg, then obtains low-down resonance and produce the trend of low frequency)。This is important, because it allows the very big manmotor-bug when selection power meets the requirements with the vocal behavior applying to arrange speaker。

Further it has to be noted that, the single fixing point of belt is provided lateral stiffness holder by the speaker of the present invention。It is true that belt is only fixed in the end being pulled and being fixed to related rigid holder。This structure allows to realize being mechanically fixed and electrically connecting of belt in single assembly manipulation。

The speaker of the present invention allows to determine that its net shape is without providing what form speaker to complete framework, and this net shape will only obtain after completing assembling。

The speaker of the present invention provides a kind of belt, and it has suspension and the relevant grappling in specific unmodifiable position and fixing point, gives speaker irrealizable stable in the solution of prior art。

In a word, the speaker of the present invention is characterised by having the advantage that relative to the speaker of prior art

The belt of the speaker of the present invention can be strained by the significant power that could alter that sound。

The speaker of the present invention is acoustics inertia, but the speaker of known type has the spurious emissions of the geometry depending on damping system。

The speaker of the present invention is symmetrical relative to belt constraint, but the speaker of known type is asymmetric。

Accompanying drawing explanation

From below with reference to be illustrativeing only rather than the detailed description of restrictive embodiment shown in accompanying drawing, the extra feature of the present invention will become apparent from, in the accompanying drawings:

Fig. 1 is the perspective view of the first embodiment of the ribbon speaker during the assembling stage that belt is not strained；

Fig. 2 is the view identical with Fig. 1, and wherein belt is tightened up；

Fig. 3 is the view identical with Fig. 2, and it illustrates the belt being in maximum displacement during operation；

Fig. 4 is the amplification details of a part of Fig. 2, it is shown that the damping system of belt；

Fig. 5 is the exploded view of the various elements of the damping system forming belt；And

Fig. 6 is the perspective view of cross-section and partial interruption, it is shown that the embodiment of the ribbon speaker of the present invention。

Detailed description of the invention

Referring to figs. 1 to 5, describe the embodiment of ribbon speaker, represent typically by numeral (1)。

With reference now to Fig. 1 to 3, speaker (1) includes the conduction belt (2) being made up of the alloy of nonmagnetic substance (such as aluminum, titanium, beryllium) or nonmagnetic substance。

The two ends of belt (2) are fixed to two rigid support things (3) by damping system (4)。Holder (3) is provided with electrical pickoff, and it is adapted for and conducts electricity belt (2) ends contact。More than consideration, when conduction belt (2) is by the signal of telecommunication, it starts vibration, therefore converts electrical signals to acoustical signal。

With reference to Figure 4 and 5, disclose the damping system (4) of belt (2)。

Damping system (4) includes the suspension being made up of elastic distribution (5)。Elastic distribution (5) can be made up of latex or platinum or peroxide silicones。Advantageously, elastic distribution (5) is set to circular structure, and can be the O ring of such as known type。

Forcing two rigid pipes (6) on elastic distribution (5), it is made up of nonmagnetic substance (such as carbon, titanium, beryllium, magnesium or lithium)。Pipe (6) has substantially identical with belt (2) width, and arranges on diametical position relative to the loop center of elastic distribution (5), in this way parallel。

Rigid pipe (6) is provided with longitudinal socket (60), in order to forces on elastic distribution (5), then closes with crimp。In this way, pipe (6) can slide relative to elastic distribution (5)。Alternately, it is possible to directly on elastic distribution (5), obtain rigid pipe (6)。

Damping system (4) also has the first grappling bar (7) and the second grappling bar (8)。Described grappling bar (7,8) is made up of inert plastic material。Preferably, described grappling bar (7,8) is at least provided with viscose glue in side, it is advantageous to be provided with viscose glue (both sides viscose top) in both sides。Grappling bar (7,8) can be bonded with the polyester of acrylic resin by both sides and make。

Grappling bar (7,8) can also be made up of rigid material, and by riveting, Vibration Welding or electric welding and mechanical couplings。Grappling bar (7,8) has the thickness of about 100 microns and the width substantially the same with the width of belt (2)。Article 1, (7) are shorter than Article 2 (8)。

Article 1, end (70) rotates around rigid pipe (6), and uses the viscose glue of bar (7) to be fixed on same (7)。

Similarly, the end (80) of Article 2 rotates around rigid pipe (6), and uses the viscose glue of bar (8) to be fixed on same (8)。

In this way, it is thus achieved that a kind of hanger, it is made up of two bars (7,8) being connected with elastic distribution (5)。

Belt (2) is folded about in end, produces wavelike segments (20) in this way, for instance have the structure of the sinusoidal part of two low half-waves and a high half-wave。Obviously, wavelike segments (20) can only have a ring, because above it is not acoustically seeing any other material, such as belt bar etc.。Planar section (21) is provided between wavelike segments (20) and the near-end of belt。

Now, first grappling bar (7) is fixed on belt (2) near the wavelike segments (20) of belt, makes wavelike segments (20) be arranged in the ring of elastic distribution (5) between two rigid pipes (6) in this way。

Must account for speaker (1) and do not need damping material between elastic distribution (5) and the fold domain (20) of belt, because being both absent from mechanical disturbance be between which also absent from acoustic interference。

The fact that belt (2) can be repetitively folded in undulating region (20) allow significantly to move to constraint relative to the size of the suspension with elastic distribution (5), remain in maximum allowable volume simultaneously。

Second grappling bar (8) is fixed to the flat end (21) of belt。Second grappling bar (8) is longer than the planar section (21) of belt。Therefore, grappling bar (8) highlights relative to belt (2)。

Returning to Fig. 1, behind the end that two damping systems (4) are fixed to belt, the assembly being made up of belt (2) and damping system (4) is fixed to two rigid support things (3)。

Each rigid support thing (3) includes base holder (30), and it is provided with to utilize closes the groove (31) that block (32) is closed。

With reference to Fig. 1, the grappling bar (8) on the left side pulls towards the direction of arrow (F1), until the holder (3) that elastic distribution (5) encounters the left side stops；Then close the closing block (32) of the holder on the left side, keep grappling bar (8) in this way。

Then, as in figure 2 it is shown, pull up another grappling bar (8) in the side of arrow (F2), until obtaining the desired tension force of belt (2)；Then the closing block (32) of the holder on the right is closed。Now, belt (2) is in the tension force of requirement, and it is kept by elastic damping system (4)。

Fig. 3 illustrates because damping system (4), and belt (2) can vertically travel on the direction of arrow (V) during operation。

Fig. 6 illustrates the embodiment of the belt speaker of the present invention indicated by numeral (101)。In this case, the distribution (105) being made up of non-resilient, non magnetic and resistance material is used, such as carbon, aramid fibre, polyamide or polyimides。

Distribution (105) is connected to belt (2) by clip (107), makes the wavelike segments (20) of belt in this way between two parts of parallel and in the plane of belt (2) distribution (105)。

Belt ends (21) is fixed to the electrical pickoff (131) in the base holder (130) being arranged on rigid support thing (103)。

At the two ends crimp head (151) of distribution (105), it is slidably mounted in the contact (131) of base holder in the shell (132) obtained。Head (151) has the first shank (152) and has second shank (153) of higher diameter。

Between the stopping surface (137) and second shank (153) with higher diameter of contact (131), obtain spring (150), pull distribution (105) with pull strength in this way。More than consideration, distribution (105) is used as elastic distribution, as described in the first embodiment of the present invention, it is ensured that the mechanical resistance higher than elastic distribution。

By those skilled in the art, embodiments of the invention can be carried out variations and modifications, still fall within the scope of technical solution of the present invention simultaneously。

Claims

1. a ribbon speaker (101), including:

The belt (2) being made of an electrically conducting material, and include two ends；

It is arranged on the damping system (4) of at least one end of described conduction belt (2)；And

Two rigid support things (103) of fixing described conduction belt (2) end,

It is characterized in that,

Described damping system (4) including:

The suspension arrangement being made up of at least one distribution (105), the head (151) at described suspension arrangement two ends has the first shank and has the second shank of higher diameter；

For the anchoring members (107) that described conduction belt (2) is connected with described suspension arrangement, and

Elastomeric element (150), is positioned between stopping surface and second shank of described suspension arrangement of electrical pickoff of the base holder of described rigid support thing (103), to produce mechanical tension。

2. ribbon speaker according to claim 1 (101), it is characterised in that described suspension arrangement is made up of non-elastic material, and described elastomeric element (150) is spring members。

3. ribbon speaker according to claim 1 (101), it is characterized in that, the described head (151) being positioned at the end of described suspension arrangement is slidably mounted on the shell (132) of the electrical pickoff (131) being arranged on described rigid support thing, and is adapted for and contacts with described conduction belt (2)。

4. ribbon speaker according to claim 1 (101), it is characterised in that described anchoring members (107) is the clip being used for clamping described suspension arrangement and described conduction belt (2)。

5. the ribbon speaker (101) according to any one of Claims 1 to 4, it is characterised in that described suspension arrangement is made up of the non-resilient abrasion-resistant material with high-tension。

6. ribbon speaker according to claim 5 (101), it is characterised in that described non-resilient abrasion-resistant material is carbon, aramid fibre, polyamide or polyimides。

7. a ribbon speaker (1), including:

Two rigid support things (3) of fixing described conduction belt (2) end；

It is characterized in that,

Described damping system (4) including:

The suspension arrangement being made up of at least one elastic distribution (5), is used for producing mechanical tension, and

For the anchoring members that described conduction belt (2) is connected with described suspension arrangement。

8. ribbon speaker according to claim 7 (1), it is characterized in that, described anchoring members is adapt to the one end of described conduction belt (2) the first grappling bar (7) connected by described suspension arrangement and the second grappling bar (8)。

9. ribbon speaker according to claim 7 (1), it is characterised in that described suspension arrangement is annular。

10. ribbon speaker according to claim 8 (1), it is characterised in that described first grappling bar (7) and the second grappling bar (8) are plastic strips, and it is at least provided with viscose glue in side。

11. ribbon speaker according to claim 9 (1), it is characterized in that, described conduction belt (2) have be arranged close to its end, annular described suspension arrangement in two rigid pipes (6) between wavelike segments (20)。

12. ribbon speaker according to claim 11 (1), it is characterised in that the described wavelike segments (20) of described conduction belt has the sine curve structure at least including three half-waves。

13. the ribbon speaker (1) described according to Claim 8 or 10, it is characterized in that, described ribbon speaker includes two rigid pipes (6) being made up of nonmagnetic substance being arranged on described conduction belt, and described first grappling bar (7) and the second grappling bar (8) are wrapped on described rigid pipe (6)。

14. ribbon speaker according to claim 13 (1), it is characterised in that described nonmagnetic substance is carbon, titanium, aluminum, beryllium, magnesium or lithium。

15. ribbon speaker according to claim 7 (1), it is characterised in that described suspension arrangement is made up of latex or platinum or peroxide silicones。

16. ribbon speaker according to claim 13 (1), it is characterised in that the polyester that described first grappling bar (7) and the second grappling bar (8) are bonded with acrylic resin by both sides is made。