CN205491133U - Super -thin speaker - Google Patents

Abstract

The utility model provides a super -thin speaker is equipped with the paper awl in the support inboard, the path end of paper awl and the drum frame connection of drive coil, and the big footpath end of paper awl is held with the big footpath of support and is connected through hanging the limit, the drive coil passes through the centring disk and is connected with the path end of support, be equipped with the dust cover on the path end of paper awl, drive coil next door be equipped with the magnetic structure, its characterized in that, the magnetic structure including the last magnet, magnetic conduction board, lower magnet and the support column that overlap from top to bottom the installation in proper order, the magnetic structure place the path end mesopore and dust cover of paper awl in inside, the drive wire snare is in the periphery of magnetic structure to it is corresponding with last magnet, magnetic conduction board and lower magnet, it is opposite with the polarity of lower magnet to go up magnet. The utility model has the advantages that: inside paper awl path end was arranged in to the magnetic structure mesopore and the dust cover, reduce the thickness of speaker greatly, satisfied the demand of miniature / sound system of miniaturizing.

Description

Ultrathin loudspeaker

Technical field

This utility model relates to a kind of ultrathin loudspeaker (loudspeaker), can greatly do the thickness of thin speaker (loudspeaker), enter And meet the current Miniature acoustics demand to speaker.

Background technology

The sound system of more and more miniature/miniaturization, more comes the requirement in terms of speaker volume, especially thickness The least, and conventional loudspeakers structure sees Fig. 1, its traditional structure is to be provided with paper cone 3 inside support 2, The miner diameter end of paper cone 3 is connected with driving coil 8 (cylinder frame), and the outer (bigger diameter end) of paper cone 3 leads to Cross outstanding limit 1 to be connected with the outer of support 2；Drive coil 8 by the miner diameter end of centring disk 5 with support 2 Connect；Miner diameter end at paper cone 3 is provided with dust cover 4.The magnetic structure of conventional loudspeakers is located at support 2 and paper Cone 3 miner diameter end below, concrete structure is: annular Magnet 7 be respectively provided with upper conduction magnetic board 6 up and down With lower magnetic conductive board 8, upper conduction magnetic board 6 is annular, and the miner diameter end of support 2 and paper cone 3 is connected to be located at magnetic conduction Above plate 6；Lower magnetic conductive board 8 is made up of following plectane and the circular projection setting center in the above, circle Shape projection stretches into Magnet 7 and the centre bore of upper conduction magnetic board 6 of annular, drives coil 8 to move convex in this circle Between gap between column top and upper conduction magnetic board 6.The magnetic circuit of this magnetic structure is a loop (magnetic line of force 15 form loop along upper conduction magnetic board 6 and lower magnetic conductive board 8).The magnetic structure of above-mentioned conventional loudspeakers is complicated, Upper and lower height is higher, and simply the gross thickness of speaker is relatively big, is unfavorable for small/thinization, it is impossible to meet miniature/little The demand of the sound system of type.

Utility model content

This utility model aims to provide a kind of ultrathin loudspeaker, to meet the miniature/miniaturization of sound system Demand.

The technical solution of the utility model is: a kind of ultrathin loudspeaker, is provided with paper cone inside support, and paper is bored Miner diameter end with drive coil skeleton is connected, paper bore bigger diameter end be connected with the bigger diameter end of support by outstanding limit； Coil is driven to be connected with the miner diameter end of support by centring disk；Paper cone miner diameter end be arranged above with dust-proof Cover；It is provided with magnetic structure, it is characterised in that described magnetic structure includes on described driving coil side The most overlapping upper Magnet, magnetic conductive board, lower magnet and the support column installed；Described magnetic structure is placed in Inside the miner diameter end mesopore of paper cone and dust cover, drive coil to be enclosed within the periphery of magnetic structure, and with upper Magnet, Magnetic conductive board is corresponding with lower magnet；Magnet and the opposite polarity of lower magnet on this.

The utility model has the advantages that: magnetic structure part is arranged in miner diameter end mesopore and the dust cover of paper cone Portion, is greatly reduced the thickness of speaker, meets the demand of the sound system of miniature/miniaturization.

Accompanying drawing explanation

Fig. 1 is conventional loudspeakers structural representation；

Fig. 2 is structural representation of the present utility model.

Detailed description of the invention

See Fig. 2, this utility model one ultrathin loudspeaker, inside support 2, be provided with paper cone 3, paper cone 3 Miner diameter end (lower end) is connected with the cylinder frame driving coil 8, the bigger diameter end (upper end) of paper cone 3 is logical Cross outstanding limit 1 to be connected with the bigger diameter end of paper cone support 2.Coil 8 is driven to bore support 2 by centring disk 5 with paper Miner diameter end (bottom) connect.Paper cone 3 miner diameter end be arranged above with dust cover 4.In described driving Coil 8 side is provided with magnetic structure.Described magnetic structure include the most overlapping install upper Magnet 10, Magnetic conductive board 11, lower magnet 12 and support column 13；Described magnetic structure is placed in the miner diameter end mesopore of paper cone 3 Internal with dust cover 4, drive coil 8 to be enclosed within the periphery of magnetic structure, and with upper Magnet 10, magnetic conductive board 11 Corresponding with lower magnet 12, Magnet 10 and the opposite polarity of lower magnet 12 (adjacent surface) on this.

The operation principle of this utility model magnetic structure is different with conventional loudspeakers, upper Magnet 10 and under The magnetic line of force 15 that Magnet 12 produces guides and concentrates and pass driving coil 8, upper Magnet 10 through magnetic conductive board 11 The magnetic line of force through driving after coil 8 above back up into upper Magnet 10；The magnetic force that lower magnet 12 produces Line returns to below lower magnet 12 down through support column 13 after driving coil 8；Coil 8 is driven to exist By producing motion during tone currents under the influence of a magnetic field, and then driving paper cone 3 motion, the latter sends sound Sound.

Above content be combine that this utility model made by concrete preferred implementation the most specifically Bright, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For belonging to this utility model For the those of ordinary skill of technical field, without departing from the concept of the premise utility, its framework shape Formula can be flexible and changeable, can be with subseries product.Simply make some simple deduction or replace, all should It is considered as belonging to the scope of patent protection that this utility model is determined by the claims submitted to.

Claims (1)

1. a ultrathin loudspeaker, is provided with paper cone, the miner diameter end of paper cone and the skeleton driving coil inside support Connecting, the bigger diameter end of paper cone is connected with the bigger diameter end of support by outstanding limit；Drive coil by centring disk with The miner diameter end of support connects；Paper cone miner diameter end be arranged above with dust cover；By described driving coil While be provided with magnetic structure, it is characterised in that described magnetic structure includes the most overlapping upper magnetic installed Ferrum, magnetic conductive board, lower magnet and support column；Described magnetic structure is placed in the miner diameter end mesopore and dust-proof of paper cone Cover is internal, drives coil to be enclosed within the periphery of magnetic structure, and corresponding with upper Magnet, magnetic conductive board and lower magnet； Magnet and the opposite polarity of lower magnet on this.