CN201054784Y - A high-density speaker - Google Patents

Abstract

The utility model relates to a loudspeaker with high density. The loudspeaker comprises a hollow shell and is characterized in that magnets are respectively arranged at the two sides in the shell; a vibrating plate is stood between the magnets; at least one voice coil is attached to the vibrating plate; the voice coil is wound along a vertical plane; the upper and the bottom planes of the shell are provided with a flat-plate diaphragm and a vibration damping sheet; the upper and the lower side ends of the vibrating plate are connected with the diaphragm and the vibration damping sheet. The magnet comprises a permanent magnet, an upper yoke magnetic block and a lower yoke magnetic block; wherein, the permanent magnet is positioned between the upper magnetic block and the lower magnetic block; the upper yoke magnetic blocks and the lower yoke magnetic blocks of the two magnets are conjugate blocks each other; the directions of formed magnetic force lines are relatively reverse, and main magnetic fields pass through the upper and the lower sides of the voice coil respectively. The flat-plate diaphragm comprises an edge and a vibrating membrane; wherein, the edge is pasted to the periphery of the shell; the vibrating membrane is bonded to the inside of the edge, and the upper side end of the vibrating plate is directly bonded to the vibrating membrane. The utility model has compact structure, so that the flat-plate loudspeaker can be further miniaturized.

Description

A kind of high density loud speaker

Technical field

The utility model relates to loud speaker, relates in particular to a kind of high density loud speaker.

Background technology

Loud speaker has circular cone type, flat, arch form formula, bugle formula or the like, and wherein, flat panel speaker has obtained using widely owing to have the non-direction advantage of sound.

The structure of existing flat panel speaker as shown in Figure 1, generally comprise support 10, magnet 20, voice coil loudspeaker voice coil 30 and flat barrier film 40, voice coil loudspeaker voice coil 30 adopts horizontal circle mostly, be placed in the magnet 20, obviously, 30 of voice coil loudspeaker voice coils around the shared volume in space bigger, produced certain restriction for the miniaturization of flat panel speaker.

Summary of the invention

The purpose of this utility model is to provide a kind of high density loud speaker, to overcome the defective that the miniaturization of prior art middle plateform formula loud speaker is restricted.

The high density loud speaker that the utility model adopted comprises hollow housing, it is characterized in that:

Described enclosure interior both sides are settled magnet respectively;

Erect a vibrating reed between the described magnet, set up at least one voice coil loudspeaker voice coil on the described vibrating reed, described voice coil loudspeaker voice coil along vertical plane around;

The last plane and the baseplane of described housing are installed flat barrier film and vibration-damping sheet respectively;

The two side ends up and down of described vibrating reed links to each other with barrier film, vibration-damping sheet respectively.

Described magnet comprises permanent magnet, goes up yoke magnetic patch and following yoke magnetic patch, wherein,

Described permanent magnet is placed between yoke magnetic patch and the following yoke magnetic patch;

Between the last yoke magnetic patch of two magnets, and descend and distinguish conjugation piece each other between the yoke magnetic patch, formed magnetic line of force direction is reverse relatively, and main field is passed the both sides up and down of voice coil loudspeaker voice coil respectively.

Described flat barrier film comprises edge and vibrating membrane, wherein,

Described edge is pasted on the periphery of housing;

Described vibrating membrane is mutually bonding with the inboard at edge;

The upside of described vibrating reed is directly mutually bonding with vibrating membrane.

Described voice coil loudspeaker voice coil is printed on the vibrating reed, forms a global facility.

The beneficial effects of the utility model are: in the utility model, the enclosure interior both sides are settled magnet respectively, erect a vibrating reed between the magnet, set up at least one voice coil loudspeaker voice coil on the vibrating reed, voice coil loudspeaker voice coil along vertical plane around, the last plane and the baseplane of housing are installed flat barrier film and vibration-damping sheet respectively, the two side ends up and down of vibrating reed respectively with barrier film, vibration-damping sheet links to each other, the utility model since voice coil loudspeaker voice coil along vertical plane around, voice coil loudspeaker voice coil around the shared volume in space minimum, and, voice coil loudspeaker voice coil is attached on the vibrating reed, in fact also be to erect to be positioned between the magnet, therefore, the utility model idle space is very little, structure is comparatively compact, make flat panel speaker miniaturization further, by suitable design, almost can be so that the utility model does not have idle space.

In the utility model, voice coil loudspeaker voice coil is printed on the vibrating reed, form a global facility, in fact formed the structure of similar printed circuit board (PCB), this integrated design can be so that structure of the present utility model be more compact, and can simplify production technology, relatively further reduce production, installation cost.

Description of drawings

Fig. 1 is a prior art middle plateform formula loadspeaker structure schematic diagram;

Fig. 2 is the utility model overall appearance schematic diagram;

Fig. 3 is that the utility model is along the A-A vertical cut-away schematic view;

Fig. 4 is a action of a magnetic field schematic diagram in the utility model;

Fig. 5 is vibrating reed and a voice coil loudspeaker voice coil connection diagram in the utility model;

Fig. 6 is the schematic appearance of the utility model along direction B;

Fig. 7 is the schematic appearance of the utility model along direction C.

Embodiment

With embodiment the utility model is described in further detail with reference to the accompanying drawings below:

As Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7, the utility model comprises hollow housing 1, and as shown in Figure 3, housing 1 inner both sides are settled magnet 3 respectively; Erect a vibrating reed 4 between the magnet 3, set up a voice coil loudspeaker voice coil 5 on the vibrating reed 4, as Fig. 3 and shown in Figure 5, voice coil loudspeaker voice coil 5 along vertical plane around; The last plane of housing 1 and baseplane are installed flat barrier film 2 and vibration-damping sheet 6 respectively, and the two side ends up and down of vibrating reed 4 links to each other with barrier film 2, vibration-damping sheet 6 respectively.

As shown in Figure 3, in housing 1 inside, left side magnet 3 comprises permanent magnet 312, goes up yoke magnetic patch 322 and following yoke magnetic patch 332, and right side magnet 3 comprises permanent magnet 311, goes up yoke magnetic patch 321 and following yoke magnetic patch 331.Left side permanent magnet 312 is placed between yoke magnetic patch 322 and the following yoke magnetic patch 332, and right side permanent magnet 311 is placed between yoke magnetic patch 321 and the following yoke magnetic patch 331.

As shown in Figure 4, between the last yoke magnetic patch 321,322 of two magnets 3, and descend and distinguish conjugation piece each other between the yoke magnetic patch 331,332, formed magnetic line of force direction is reverse relatively, and main field is passed the both sides up and down of voice coil loudspeaker voice coil 5 respectively, and for example, the magnetic line of force between the last yoke magnetic patch 321,322 from left to right, then, the magnetic line of force between the following yoke magnetic patch 331,332 from right to left.

As Fig. 3 and shown in Figure 6, flat barrier film 2 comprises silica gel edge 21 and vibrating membrane 22, and silica gel edge 21 is pasted on the periphery of housing 1, and vibrating membrane 22 is mutually bonding with the inboard at silica gel edge 21, and the upside of vibrating reed 4 is directly mutually bonding with vibrating membrane 22.

As shown in Figure 7, two plumb joints 7 are set up in the bottom of housing 1, and the two ends of voice coil loudspeaker voice coil 5 are connected to plumb joint 7 by vibration-damping sheet 6.

In the utility model, only set up a voice coil loudspeaker voice coil 5 on the vibrating reed 4, in actual applications, also can set up two or more voice coil loudspeaker voice coils 5 as required, this can not need to pay creative work for those of ordinary skills can implement, and repeats no more herein.

In addition, in the utility model, voice coil loudspeaker voice coil 5 can be printed on the vibrating reed 4, form a global facility, in fact form the structure of similar printed circuit board (PCB), its structure, principle and the above are same or similar, repeat no more herein.

In sum, although basic structure of the present utility model, principle are specifically set forth by the foregoing description, under the prerequisite that does not break away from the utility model main idea, according to above-described inspiration, those of ordinary skills can not need to pay creative work can implement multiple conversion/alternative form or combination, repeats no more herein.

Claims (4)

1. a high density loud speaker comprises hollow housing, it is characterized in that:

Described enclosure interior both sides are settled magnet respectively;

Erect a vibrating reed between the described magnet, set up at least one voice coil loudspeaker voice coil on the described vibrating reed, described voice coil loudspeaker voice coil along vertical plane around;

The last plane and the baseplane of described housing are installed flat barrier film and vibration-damping sheet respectively;

The two side ends up and down of described vibrating reed links to each other with barrier film, vibration-damping sheet respectively.

2. high density loud speaker according to claim 1 is characterized in that: described magnet comprises

Permanent magnet, last yoke magnetic patch and following yoke magnetic patch, wherein,

Described permanent magnet is placed between yoke magnetic patch and the following yoke magnetic patch;

Between the last yoke magnetic patch of two magnets, and descend and distinguish conjugation piece each other between the yoke magnetic patch, formed magnetic line of force direction is reverse relatively, and main field is passed the both sides up and down of voice coil loudspeaker voice coil respectively.

3. high density loud speaker according to claim 1 and 2 is characterized in that: described flat

Board-like barrier film comprises edge and vibrating membrane, wherein,

Described edge is pasted on the periphery of housing;

Described vibrating membrane is mutually bonding with the inboard at edge;

The upside of described vibrating reed is directly mutually bonding with vibrating membrane.

4. high density loud speaker according to claim 1 and 2 is characterized in that: described voice coil loudspeaker voice coil is printed on the vibrating reed, forms a global facility.

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