CN209046875U - A kind of such as magnetic type loudspeaker with outstanding side - Google Patents

Abstract

The utility model relates to a kind of such as magnetic type loudspeakers with outstanding side, the flexible membrane being directly or indirectly fixed on including periphery on frame, and the permanent magnet array opposed with the voice coil position being covered on the flexible membrane, it further include an outstanding side, flexible membrane periphery is fixed on the inner edge on outstanding side, and is in tensioning state；The outer rim on outstanding side is fixed on the frame, and it is in closed circular that it is end to end, which to hang side, is made of inner edge, outer rim and the concave part between inner edge and outer rim, and concave part is made of elastic material and its section configuration has at least one groove；Outstanding side ring is arranged around permanent magnet array.The utility model have it is outstanding while such as magnetic type loudspeaker increase outstanding while structure, keep vibrating diaphragm direction of vibration everywhere and amplitude always consistent, reduce distortion, improve sound quality, it is added significantly to the whole amplitude of the diaphragm of loudspeaker simultaneously, acoustical power and low frequency are not only effectively improved, but also is conducive to the miniaturization of panel speaker.

Description

A kind of such as magnetic type loudspeaker with outstanding side

Technical field

The utility model relates to speaker technology field more particularly to a kind of such as magnetic type loudspeakers with outstanding side.

Background technique

Shown in Figure 1, the structure of flat panel speaker (also known as such as magnetic type loudspeaker) is usually to match side by side in magnetic yoke Multiple bar permanent magnets are equipped with, the magnetic pole strength configured in parallel relative to these permanent magnets has vibrating diaphragm, on vibrating diaphragm and permanent magnet Opposed position is provided with coil.The electric current of coil inside flowing and the magnetic field orthotropic generated by permanent magnet, in this way, by online Circulate alternating current in circle, and coil is to generate to defer to the power of Faraday's law, and vibrating diaphragm is in vertical direction under this force Vibration, the ac current signal are transformed to voice signal.

From loadspeaker structure described above: the coil of panel speaker can be evenly distributed on vibrating diaphragm, driving Power is evenly distributed；The panel speaker flexible membrane low using thick sole, quality are much smaller than the rigid vibrating diaphragm of moving-coil speaker, and And the structures such as sound ring frame, centering piece are eliminated, make its rest mass far below moving-coil speaker, speed responsing is fast.It is flat to raise Sound device possesses better performance compared to electrostatic in terms of low frequency, and is also better than moving-coil type in terms of high frequency.

But moving-coil speaker is compared, panel speaker has the disadvantage in that its vibrating diaphragm peak swing is limited to vibrating diaphragm to forever The spacing of magnet, and in order to guarantee magnetic field strength at vibrating diaphragm, vibrating diaphragm is very small to the spacing between permanent magnet, therefore flat board speaking The amplitude of device also very little.To guarantee acoustic pressure and low frequency, the vibrating diaphragm of larger area can only be used.

Moreover, the elastic deformation that vibrating diaphragm and vibrating diaphragm coil are fully relied on when the diaphragm oscillations of panel speaker carrys out shape At its amplitude, thus while driving force suffered by vibrating diaphragm is relatively uniform, but vibrating diaphragm center amplitude in vibration is maximum, then to edge Successively successively decrease (as shown in phantom in Figure 1).This actual average amplitude for not only resulting in panel speaker further reduces, Er Qiezhen There is opposite movement everywhere in film, increases distortion.

Summary of the invention

The purpose of this utility model is in view of the shortcomings of the prior art, to propose a kind of such as magnetic type loudspeaker with outstanding side, Keep vibrating diaphragm direction of vibration everywhere and amplitude always consistent using outstanding side structure, is not only added significantly to the whole of loudspeaker Body amplitude, and reduce distortion.

In order to achieve the above object of the invention, the utility model proposes a kind of such as magnetic type loudspeaker with outstanding side first, packet Include the flexible membrane that periphery is directly or indirectly fixed on frame, and with the voice coil position pair that is covered on the flexible membrane The permanent magnet array set, vibrating diaphragm thickness are less than 1cm, and the such as magnetic type loudspeaker further includes an outstanding side, the flexible membrane periphery It is fixed on the inner edge on the outstanding side, and is in tensioning state；The outer rim on the outstanding side is fixed on the frame；It is described outstanding End to end side is in closed circular, is made of inner edge, outer rim and the concave part between inner edge and outer rim, the concave part It is made of elastic material and its section configuration has at least one groove；The outstanding side ring is arranged around the permanent magnet array.

In a preferred embodiment, the permanent magnet array is made of several bar permanent magnets being parallel to each other, those are forever Magnet is alternatively arranged to be parallel in the plane with flexible membrane in one, and the voice coil on the flexible membrane is in full of twists and turns snake Shape linear structure.

In a preferred embodiment, respectively there are permanent magnet array described in a column in the flexible membrane two sides.

Compared with prior art, the utility model has the beneficial effects that

1, outstanding side structure is increased, keeps vibrating diaphragm direction of vibration everywhere and amplitude always consistent, reduces distortion, Improve sound quality.

2, it is added significantly to the whole amplitude of the diaphragm of loudspeaker, not only effectively improves acoustical power and low frequency, but also advantageous In the miniaturization of panel speaker.

Detailed description of the invention

By the description carried out with reference to the accompanying drawing to its exemplary embodiment, the utility model features described above and advantage will It can become more fully apparent and be readily appreciated that.

Fig. 1 is existing panel speaker structural schematic diagram.

Fig. 2 is the structural schematic diagram of existing moving-coil speaker.

Fig. 3 is the such as magnetic type loadspeaker structure schematic diagram that the utility model embodiment has outstanding side.

Fig. 4 is that the utility model embodiment hangs side structural schematic diagram.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing, in order to the understanding of technical staff of the same trade:

As Figure 3-Figure 4, label respectively indicates:

Vibrating diaphragm 1, frame 2, conducting wire 3, outstanding side 4, inner edge 41, concave part 42, outer rim 43, integral support portion 44, permanent magnet array 5。

Referring to shown in Fig. 3-Fig. 4, the utility model embodiment proposes a kind of such as magnetic type loudspeaker with outstanding side first, main It to include vibrating diaphragm 1, frame 2 and permanent magnet array 5.The voice coil of full of twists and turns serpentine-like linear structure is provided on vibrating diaphragm 1.Permanent magnetism Volume array 5 can be set to the two sides (i.e. push-pull type) of vibrating diaphragm 1 or only be set to side (i.e. acyclic type), the permanent magnet of permanent magnet array 5 It is alternatively arranged the plane being parallel in one with flexible membrane.Voice coil is opposed with the position of permanent magnet array 5 on vibrating diaphragm 1.Due to Structure described above is identical as conventional panel loadspeaker structure, commonly sees technology for those skilled in the art, and and be not belonging to The designing points of the utility model, therefore details are not described herein.

Unlike conventional panel loudspeaker, which further includes outstanding side 4.It is shown in Figure 4, hang side 4 End to end is in closed circular, is made of inner edge 41, outer rim 43 and the concave part 42 between inner edge 41 and outer rim 43, recessed 42 section configuration of groove portion has at least one groove, and soft 1 periphery of film is fixed on inner edge 41, and the outer rim 43 on outstanding side is fixed on frame On 2.

Split type structure can be used in outstanding side 4, and only concave part 42 is made to guarantee its good elastic deformation of elastic material Ability can also be integrally machined molding using elastic material with inner edge 41, outer rim 43 and concave part 42, it might even be possible to directly use film 1 edge forms inner edge 41, outer rim 43 and concave part 42 by modes such as hot pressing.

It is, moreover, an optional that the integral support portion for making flexible membrane 1 keep tensioning state can also be arranged in the inner edge 41 on outstanding side 4 44, the material that integral support portion 44 can be used strength high density low, such as carbon fibre material.

By above structure it is found that the outstanding structure when 4 structure is with outstanding in moving-coil speaker suspended structure is closely similar, But moving-coil speaker it is outstanding while and the present embodiment in hang while setting purpose it is entirely different.

The effect of moving-coil speaker setting suspension is: 1, allowing rigid vibrating diaphragm to move along axis direction, without sending out It is raw eccentric, it rubs in magnetic gap once bias can cause voice coil.2, pliable, this pliable decision loudspeaker sheet of loudspeaker is formed The resonance frequency of body.3, reaction force is generated to vibrating diaphragm, enables vibrating diaphragm reversion to initial position.4, the stroke amount of vibrating diaphragm is constrained.

And the utility model embodiment have it is outstanding while such as magnetic type loudspeaker in setting it is outstanding while 4 purpose and moving-coil speaker Entirely different, effect is: keeping vibrating diaphragm direction of vibration everywhere and amplitude always consistent, reduces distortion；Raising is raised The whole amplitude of sound device vibrating diaphragm, improves acoustical power and low frequency, is conducive to the miniaturization of panel speaker.

It is described in detail above by invention intention and embodiment of the embodiment for the utility model, but this reality It is appreciated that the utility model above embodiments are only the preferred of the utility model with novel one of ordinary skill in the art One of embodiment limits for length, cannot enumerate all embodiments one by one here, any to embody the utility model right It is required that the implementation of technical solution, all within the protection scope of the present utility model.

It should be noted that the above content is combination specific embodiments to further detailed made by the utility model Illustrate, and it cannot be said that specific embodiment of the present utility model is only limitted to this, under the guidance of above-described embodiment, art technology Personnel can carry out various improvement and deformations on the basis of the above embodiments, and these are improved or deformation to fall in this practical new In the protection scope of type.

Claims (3)

1. a kind of such as magnetic type loudspeaker with outstanding side, the flexible membrane being directly or indirectly fixed on including periphery on frame, And the permanent magnet array opposed with the voice coil position being covered on the flexible membrane, it is characterised in that: vibrating diaphragm thickness is less than 1cm, the such as magnetic type loudspeaker further include an outstanding side, and the flexible membrane periphery is fixed on the inner edge on the outstanding side, and In tensioning state；The outer rim on the outstanding side is fixed on the frame, and the end to end outstanding side is in closed circular, by interior Edge, outer rim and the concave part between inner edge and outer rim are constituted, and the concave part is made of elastic material and its section configuration With at least one groove；The outstanding side ring is arranged around the permanent magnet array.

2. the such as magnetic type loudspeaker with outstanding side according to claim 1, it is characterised in that: if the permanent magnet array by The dry bar permanent magnet being parallel to each other is constituted, those permanent magnets are alternatively arranged to be parallel in the plane with flexible membrane in one, Voice coil on the flexible membrane is in full of twists and turns serpentine structure.

3. the such as magnetic type loudspeaker with outstanding side according to claim 1, it is characterised in that: the flexible membrane two sides are each There is permanent magnet array described in a column.