CN203261473U

CN203261473U - Electroacoustic transducer

Info

Publication number: CN203261473U
Application number: CN 201320217060
Authority: CN
Inventors: 黄锦堂; 曾木村
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2013-04-25
Filing date: 2013-04-25
Publication date: 2013-10-30
Anticipated expiration: 2023-04-25

Abstract

The utility model discloses an electroacoustic transducer which comprises the following components: a frame, a sound film and a vibration assembly. The upper surface of the frame is provided with an opening and is internally provided with an accommodating space. An accommodating chamber is upwards arranged from a lower-end surface. The front bottom end and the back bottom end of the frame respectively project downwards for forming a base block. The base blocks are provided with positioning tanks. The sound film is arranged on the opening. The vibration assembly is arranged in the accommodating space and drives the sound film to vibrate. The vibration assembly comprises a U-shaped iron block which is assembled and fixed in the accommodating chamber. The U-shaped iron block comprises a bottom wall, a side wall, an accommodating tank, and a peripheral area which is formed through outward extension of the side wall. The peripheral area comprises a substrate and a positioning board which is formed through outward extending from the front end and the back end of the substrate. The positioning board is assembled and fixed in the positioning tank. The electroacoustic transducer has a better heat radiation effect and simultaneously improves a rotation problem in glue coating process of traditional circular U-shaped iron block, thereby obtaining more stable production.

Description

Electroacoustic transducer

Technical field

The utility model relates to a kind of electroacoustic transducer, especially relates to a kind of electroacoustic transducer that is applied in the electronic installation.

Background technology

Along with fast development and the demand of people to living of science and technology, electroacoustic transducer has been widely used in the electronic installations such as TV, computer and mobile phone.

A kind of existing electroacoustic transducer comprises a framework, is incorporated into a sound film and a vibration component on this framework.Be installed in the accommodation space, drive the vibration of sound film.This vibration component comprises a U iron of being combined with this framework.Described framework outline is rectangular-shaped, both ends open up and down, the centre is provided with a host cavity, framework comprises a framework and a substrate of being combined with this framework, substrate is shaped in this framework downside, and it comprises a load bearing seat, and this load bearing seat is annular, be provided with through hole of a circle in the middle of it, in order in conjunction with U iron.Sound film assembling is fixed in framework upper end open place and over against host cavity; U iron comprise a circle diapire, extend upward the sidewall that forms and be formed at a storage tank between this diapire and the sidewall by the periphery of this diapire, U iron is placed in the through hole, the upper end of sidewall is incorporated in the through hole of substrate of framework, and the storage tank of this U iron is communicated with the host cavity of this framework.

But, above-mentioned electroacoustic transducer only the cylinder design by U iron so that area of dissipation is little, simultaneously, the structure meeting that U iron is combined with framework so that U iron in the gluing process, rotate.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of electroacoustic transducer that has strengthened area of dissipation and improved rotational problems in traditional circular U iron gluing process is provided.

To achieve these goals, the utility model provides a kind of electroacoustic transducer, and it comprises a framework, a sound film and a vibration component.Frame upper surface has an opening, and the inner accommodation space that forms, the framework of framework is enclosed by two long side frame bodies and two short side frame bodies and is formed, the framework rear surface upwards offers a containing cavity that communicates with accommodation space, and containing cavity outwards runs through the side surface of the relative two long side frame bodies of framework, this framework relative two short side frame body rear surfaces are convexly equipped with downwards respectively and form a matrix, offer on the matrix with containing cavity to be positioned at conplane location notch; The sound film is installed in the opening part of framework; Vibration component is installed in the accommodation space, drive the vibration of sound film, vibration component comprises a U iron, the assembling of U iron is fixed in the containing cavity, U iron comprise a circle diapire, extend upward the sidewall that forms, the external zones that is formed at the storage tank between this diapire and the sidewall and stretches out and form by sidewall by the periphery of this diapire, external zones comprises a flat substrate and outwards protrudes out respectively the location-plate of formation from substrate relative two short sides, substrate adopt whole ring around mode fit and be fixed on the containing cavity roof, the location-plate assembling is fixed in the location notch.

In sum, the utility model electroacoustic transducer outwards runs through the side surface of the relative two long side frame bodies of framework by containing cavity, the two long side frame body places that are used for the framework of applying U iron adopt the Rimless design, strengthened U iron area of dissipation, when electroacoustic transducer has better radiating effect under high power and long-time running, simultaneously, location-plate is assembled the structural design that is fixed in location notch and is also improved rotational problems in traditional circular U iron gluing process, thereby produces more stable at gluing assembling processing procedure.

Description of drawings

Fig. 1 is the stereogram of the utility model electroacoustic transducer.

Fig. 2 is the three-dimensional exploded view of electroacoustic transducer shown in Figure 1.

Fig. 3 is the three-dimensional exploded view of another angle of electroacoustic transducer shown in Figure 1.

The description of reference numerals of each parts is as follows among the figure.

Framework 10 openings 11

Accommodation space 12 containing cavities 13

Matrix 14 location notchs 141

The 15 sound films 20 of slotting

Vibration component 30 U iron 31

Diapire 311 sidewalls 312

Storage tank 313 substrates 314

Location-plate 315 magnet 32

Magnetic conductive disk 33 voice coil loudspeaker voice coils 34.

Embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, below in conjunction with execution mode and cooperate that accompanying drawing is detailed to give explanation.

See also Fig. 1, Fig. 2 and Fig. 3, the utility model electroacoustic transducer comprises framework 10, be installed in the sound film 20 on the framework 10 and be installed in vibration component 30 in the framework 10, and vibration component 30 is connected with sound film 20.Vibration component 30 is electrically connected with outside signal source (not shown).When outside signal source provides electric energy to vibration component 30, vibration component 30 will produce vibration, and sends vibration to sound film 20, and sound film 20 will vibrate, and the medium around promoting produces sound wave.

Described framework 10 outlines are rectangular frame shaped, upper surface has an opening 11, and the inner accommodation space 12 that forms, the framework week side of framework 10 is enclosed by two long side frame bodies and two short side frame bodies to be formed, offer an annular slotted 15 on framework 10 upper end faces, and 15 side surfaces that outwards run through framework 10 relative two long side frame bodies of slotting, framework 10 rear surfaces upwards offer an annular containing cavity 13 that communicates with accommodation space 12, and containing cavity 13 outwards runs through the side surface of framework 10 relative two long side frame bodies.These framework 10 relative two short side frame body rear surfaces are convexly equipped with downwards respectively and form a matrix 14, offer on the matrix 14 with containing cavity 13 to be positioned at conplane location notch 141.

Described sound film 20 is installed in opening 11 places of framework, sound film 20 is microscler, sound film 20 comprises the vibration section 21 at middle part and is connected in the sticking part 22 of vibration section week side, and vibration section 21 is over against accommodation space 12, sticking part 22 adopt whole ring around mode fit and be fixed on fluting 15 diapires.

In the present embodiment, vibration component 30 is the vibrating device of a voice coil loudspeaker voice coil oscillatory type, and it is installed in the accommodation space 12, drives 20 vibrations of sound film.Vibration component 30 comprises one with a U iron 31 of framework 10 combinations, be located at a magnet 32 in the U iron 31, be located at the magnetic conductive disk 33 on this magnet 32 and be located at a voice coil loudspeaker voice coil 34 of these magnet 32 peripheries.U iron 31 is set to peviform and is fixed in framework 10, particularly, 31 assemblings of described U iron are fixed in the containing cavity 13, it comprise a circle diapire 311, extend upward the sidewall 312 that forms, be formed at the storage tank 313 between this diapire 311 and the sidewall 312 and the external zones that stretches out and form by sidewall 312 by the periphery of this diapire 311.The storage tank 313 of this U iron 31 is communicated with the containing cavity 13 of this framework 10, external zones comprises a flat substrate 314 and outwards protrudes out respectively the location-plate 315 of formation from substrate 314 relative two short sides, substrate 314 adopt whole ring around mode fit and be fixed on containing cavity 13 roofs, location-plate 315 assemblings are fixed in the location notch 141; Magnet 32 is arranged in the storage tank 313 of U iron 31; Magnetic conductive disk 33 is arranged at magnet 32 tops and coats magnet 32 with 31 clampings of cooperation U iron, and the diameter of magnet 32 and magnetic conductive disk 33 is less than the diameter of U iron 31, so magnet 32 and magnetic conductive disk 33 and U iron 31 collocation assembling formation one gap (not shown); Voice coil loudspeaker voice coil 34 is one group of coil, movably be installed in gap location and and described outside signal source be electrically connected, when the electric current in outside signal source just can be under the influence of magnetic field of magnet 32 during by voice coil loudspeaker voice coil 34 double vibrations, vibrate and promote sound film 20.

In sum, the utility model electroacoustic transducer outwards runs through the side surface of framework 10 relative two long side frame bodies by containing cavity 13, the two long side frame body places that are used for the framework 10 of applying U iron 31 adopt the Rimless design, U iron 31 area of dissipations have been strengthened, when electroacoustic transducer has better radiating effect under high power and long-time running, simultaneously, location-plate 315 is assembled the structural design that is fixed in location notch 141 and is also improved rotational problems in traditional circular U iron 31 gluing processes, thereby produces more stable at gluing assembling processing procedure.

Claims

1. electroacoustic transducer, it is characterized in that: comprise a framework, a sound film and a vibration component, frame upper surface has an opening, and the inner accommodation space that forms, the framework of framework is enclosed by two long side frame bodies and two short side frame bodies and is formed, the framework rear surface upwards offers a containing cavity that communicates with accommodation space, and containing cavity outwards runs through the side surface of the relative two long side frame bodies of framework, this framework relative two short side frame body rear surfaces are convexly equipped with downwards respectively and form a matrix, offer on the matrix with containing cavity to be positioned at conplane location notch; The sound film is installed in the opening part of framework; Vibration component is installed in the accommodation space, drive the vibration of sound film, vibration component comprises a U iron, the assembling of U iron is fixed in the containing cavity, U iron comprise a circle diapire, extend upward the sidewall that forms, the external zones that is formed at the storage tank between this diapire and the sidewall and stretches out and form by sidewall by the periphery of this diapire, external zones comprises a flat substrate and outwards protrudes out respectively the location-plate of formation from substrate relative two short sides, substrate adopt whole ring around mode fit and be fixed on the containing cavity roof, the location-plate assembling is fixed in the location notch.

2. electroacoustic transducer as claimed in claim 1, it is characterized in that: described vibration component also comprises a magnet, a magnetic conductive disk and a voice coil loudspeaker voice coil, U iron is set to peviform and is fixed in framework; Magnet is arranged in the U iron; Magnetic conductive disk is arranged at the magnet top to cooperate the U iron clamp to hold coating magnet, and the diameter of magnet and magnetic conductive disk is less than the diameter of U iron, so magnet and magnetic conductive disk and U an iron rake with three to six teeth combo dress formation one gap; Voice coil loudspeaker voice coil is one group of coil, movably is installed in gap location.

3. electroacoustic transducer as claimed in claim 1 is characterized in that: offer an annular slotted on the described framework upper end face, and fluting outwards runs through the side surface of the relative two long side frame bodies of framework.

4. electroacoustic transducer as claimed in claim 3, it is characterized in that: described sound film is microscler, the sound film comprises the vibration section at middle part and is connected in the sticking part of vibration section week side, and the vibration section is over against accommodation space, sticking part adopt whole ring around mode fit and be fixed on the fluting diapire.