CN208821060U - A kind of loudspeaker - Google Patents

Abstract

The utility model relates to a kind of loudspeakers, including shell, vibrational system, magnetic circuit system；The magnetic circuit system includes the U iron of setting in the housing, and the magnet, the center magnetic conductive board that are arranged in U iron；The vibrational system includes the vibrating diaphragm and voice coil being connected on shell；The vibrating diaphragm, the magnetic circuit system and the shell surround back cavity jointly, and the extraneous aperture with back cavity of at least one connection is provided on the side wall of the U iron；The extraneous acoustic seal hole with back cavity of at least one connection is provided on the side wall of the shell.A technical problem to be solved in the utility model is resonance problems caused by can improving because of loudspeaker back cavity aperture.

Description

A kind of loudspeaker

Technical field

The utility model relates to electroacoustic switch technology fields, more specifically, the utility model relates to a kind of loudspeakers.

Background technique

Loudspeaker is also known as loudspeaker, is a kind of energy transducer that electric signal can be changed into acoustical signal.In sounding electronic electricity Loudspeaker belongs to one of essential component in gas equipment.Sound of the performance superiority and inferiority of loudspeaker for sounding electronic electrical equipment Matter influences very big.In fact, loudspeaker is a relatively weak device in sounding electronic electrical equipment, and for hair For sound electronic electric equipment, loudspeaker is a very important component again.

Nowadays, with the fast development of sounding electronic product, people are more next to the performance requirement of sounding electronic electrical equipment It is higher, therefore higher requirements are also raised for performance of loudspeaker etc..For existing loudspeaker, conventional design It is U iron bottom opening inside it, this, which allows for being mounted on the components such as the centring magnet of U iron bottom, center magnetic conductive board, also wants Back cavity and the external world of loudspeaker could be connected in corresponding aperture in this way.However, the problem of will lead to after U iron bottom opening is: It is easy to cause resonance phenomena in effective band limits, apparent peak valley occurs so as to cause frequency response curve at resonance, at peak valley Distortion can increase, this just influences whether the performances such as the acoustical quality of loudspeaker.

It can be seen that be highly desirable to study new loadspeaker structure, with solve it is existing in the prior art at least one Problem.

Utility model content

One purpose of the utility model is to provide a kind of new solution of loudspeaker.

One aspect according to the present utility model provides a kind of loudspeaker, including shell, vibrational system, magnetic circuit system；Institute Stating magnetic circuit system includes the U iron of setting in the housing, and the magnet, the center magnetic conductive board that are arranged in U iron；The vibrational system Including the vibrating diaphragm and voice coil being connected on shell；The vibrating diaphragm, the magnetic circuit system and the shell surround back cavity jointly； The extraneous aperture with back cavity of at least one connection is provided on the side wall of the U iron；It is provided at least on the side wall of the shell The extraneous acoustic seal hole with back cavity of one connection.

Optionally, the acoustic seal hole includes the through-hole that housing sidewall is arranged in, and the damping of the covering through-hole Structure.

Optionally, symmetrical on the side wall of the shell there are two the through-hole settings.

Optionally, the damping structure is screen cloth.

Optionally, the aperture is provided with multiple, is distributed on the side wall of U iron hoop shape.

Optionally, there are four the aperture settings, which is separately positioned on four corner locations of U iron side wall.

Optionally, the U iron is in racetrack.

Optionally, the acoustic seal hole of the housing sidewall is arranged in a staggered manner with the aperture on U iron.

Optionally, the vibrating diaphragm includes vibration section and ring, and the edge of the vibration section is connected to shell by ring On；One end of the voice coil is connected on the vibration section.

Optionally, the voice coil includes speech coil framework, and the speech coil framework is connected on the vibration section, in the voice coil The lower end position of skeleton is wound with coil.

Loudspeaker provided by the embodiment of the utility model has the characteristics that structure is simple, it can be achieved that production.Also, with The existing bottom opening in U iron is compared: the loudspeaker of the utility model is used in the side-wall hole of U iron and the side wall of shell The design of aperture can be substantially reduced the distortion of loudspeaker, guarantee the sound quality of loudspeaker, so that loudspeaker has good property Energy.

By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other Feature and its advantage will become apparent.

Detailed description of the invention

The attached drawing for constituting part of specification describes the embodiments of the present invention, and uses together with the description In explanation the principles of the present invention.

Fig. 1 is a kind of structural exploded view of loudspeaker provided by the embodiment of the utility model.

Fig. 2 is a kind of structural schematic diagram of loudspeaker provided by the embodiment of the utility model.

Description of symbols:

1- vibrating diaphragm, 2- through-hole, 3- shell, 4- damping structure, 5-U iron.

Specific embodiment

The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited The scope of the utility model processed.

Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical Novel and its application or any restrictions used.

Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation Under, the technology and equipment should be considered as part of specification.

It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without It is as limitation.Therefore, other examples of exemplary embodiment can have different values.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.

Loudspeaker disclosed in the utility model embodiment has the characteristics that structure is simple, production and processing is easy, can be easy It realizes production, is very suitable to promote production.The loudspeaker can solve the resonance phenomena because caused by being connected back cavity, so as to drop It is low, the case where even loudspeaker being avoided to be distorted, so as to promote the performance of loudspeaker.

A kind of loudspeaker provided by the embodiment of the utility model, with reference to Fig. 1 and Fig. 2, including shell 3, vibrational system, with And magnetic circuit system.Wherein, above-mentioned magnetic circuit system may include the U iron 5 being arranged in shell 3, and the magnetic being arranged in U iron 5 Iron and center magnetic conductive board.Above-mentioned vibrational system may include the vibrating diaphragm 1 and voice coil being connected on shell 3.Vibrating diaphragm 1, magnetic circuit system System and shell 3 surround back cavity jointly；The extraneous aperture with back cavity of at least one connection is provided on the side wall of U iron 5.In shell The extraneous acoustic seal hole with back cavity of at least one connection is provided on the side wall of body 3.

Above-mentioned loudspeaker provided by the embodiment of the utility model has out on the side wall of U iron 5 and the side wall of shell 3 Hole, with it is existing in the mode of U iron bottom opening compared with, can be existing to avoid loudspeaker resonance caused by effective band limits As that can make loudspeaker that there is good acoustical quality to can be reduced the distortion of loudspeaker.And making for loudspeaker can be extended Use the service life.

Wherein, the extraneous aperture with back cavity of connection is provided on the side wall of U iron 5.The quantity of its aperture can be set to One, naturally it is also possible to be multiple.In practical applications, it can according to need the setting quantity of flexible choice aperture and in U Position is specifically set on iron 5, the utility model to this with no restriction.Also, the dimension and shape etc. of above-mentioned aperture, can also With flexible choice according to actual needs, such as aperture is rectangular opening, round hole, slotted eye etc., the utility model to this not yet It is restricted.

Specifically, multiple apertures can be provided on the side wall of U iron 5, and the multiple aperture is evenly distributed in U iron On 5 side wall.The design can guarantee intracavity gas and outside air circulation after loudspeaker.

In a specific embodiment of the utility model, it can be arranged on the side wall of U iron 5 there are four aperture, and Four apertures are separately positioned on four corner locations on the side wall of U iron 5.On U iron 5, pass through this quadrangle aperture Mode, it is possible to provide enough spaces, to guarantee that the gas in back cavity and outside air circulate.

Wherein, U iron 5 can be in racetrack.

Wherein, with reference to Fig. 2, the extraneous acoustic seal hole with loudspeaker back cavity of connection is provided on the side wall of shell 3.And The acoustic seal hole includes at least the through-hole 2 being arranged on 3 side wall of shell, and covers the damping structure 4 on the through-hole 2.? Increase damping structure at through-hole 2, the damping of through hole can be increased, acoustical behavior can be effectively improved, is conducive to promote loudspeaker Acoustical behavior.

Specifically, the setting quantity in acoustic seal hole can according to need flexible choice, and the utility model does not limit herein System.In a specific embodiment of the utility model, with reference to the view direction of Fig. 2, in a left side on a side wall of shell 3 The right side is arranged symmetrically, and there are two acoustic seal holes.Also, the shape and size in above-mentioned acoustic seal hole 2 etc., can also be according to reality Border demand flexible choice, the utility model to this with no restriction.

Wherein, damping structure 4 can use screen cloth.Screen cloth can for example use Metal screen cloth, and Metal screen cloth has solid Durable, the characteristics of being hardly damaged, it can largely extend the service life of loudspeaker.Certainly, mesh can also be used Other mesh members such as screen cloth.

In addition, damping structure 4 can firmly be combined using the through-hole 2 in mode well known in the art and 3 side wall of shell Together, for example, can using the modes etc. such as hot melt or welding, the utility model to this with no restriction.

Wherein, the acoustic seal hole on 3 side wall of shell and the aperture on U iron 5 are staggered.What the utility model used sets Meter, even if the tapping on U iron 5 is not provided with damping structure, can also improve resonance, if but the performance of loudspeaker phase is not achieved The requirement of pass then can also increase damping structure in the tapping on U iron 5, the damping structure can also using Metal screen cloth or Person's other materials known in the art.

The vibrating diaphragm 1 of the utility model may include vibration section and ring, and the edge of vibration section can be connected by ring It is connected on shell 3, to realize the fixation to vibrating diaphragm 1.Further, which can also include top dome portion.

Specifically, in the vibrational system of the utility model, one end of voice coil is connected on the vibration section of vibrating diaphragm 1.

Specifically, voice coil includes speech coil framework, which is connected on vibration section, in the lower end of speech coil framework position Set the coil being wound with for being combined together with magnetic gap.

For loudspeaker provided by the embodiment of the utility model when being powered on, the magnet in magnetic circuit system is due to own magnetic force Cooperation electric energy can produce the magnetic field with some strength, is transferred to the magnetic field with intensity by center magnetic conductive board and U iron 5 Voice coil in vibrational system is generated reciprocal power by voice coil cutting magnetic line, and makes to shake by the reciprocal powered air Film 1 generates vibration.

Although being described in detail by some specific embodiments of the example to the utility model, this field It is to be understood by the skilled artisans that above example merely to be illustrated, rather than in order to limit the scope of the utility model.This Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments It modifies.The scope of the utility model is defined by the following claims.

Claims (10)

1. a kind of loudspeaker, it is characterised in that: including shell, vibrational system, magnetic circuit system；

The magnetic circuit system includes the U iron of setting in the housing, and the magnet, the center magnetic conductive board that are arranged in U iron；The vibration Dynamic system includes the vibrating diaphragm and voice coil being connected on shell；The vibrating diaphragm, the magnetic circuit system and the shell enclose jointly At back cavity；

The extraneous aperture with back cavity of at least one connection is provided on the side wall of the U iron；It is provided on the side wall of the shell The extraneous acoustic seal hole with back cavity of at least one connection.

2. loudspeaker according to claim 1, it is characterised in that: the acoustic seal hole includes that housing sidewall is arranged in Through-hole, and the damping structure of the covering through-hole.

3. loudspeaker according to claim 2, which is characterized in that there are two the through-hole settings, in the side of the shell It is symmetrical on wall.

4. loudspeaker according to claim 3, it is characterised in that: the damping structure is screen cloth.

5. loudspeaker according to claim 1, it is characterised in that: the aperture is provided with multiple, is distributed in U iron hoop shape On side wall.

6. loudspeaker according to claim 5, it is characterised in that: there are four the aperture settings, four aperture difference Four corner locations of U iron side wall are set.

7. loudspeaker according to claim 6, it is characterised in that: the U iron is in racetrack.

8. loudspeaker according to claim 1, it is characterised in that: on the acoustic seal hole of the housing sidewall and U iron Aperture is arranged in a staggered manner.

9. loudspeaker according to claim 1, it is characterised in that: the vibrating diaphragm includes vibration section and ring, the vibration The edge in dynamic portion is connected on shell by ring；One end of the voice coil is connected on the vibration section.

10. loudspeaker according to claim 9, it is characterised in that: the voice coil includes speech coil framework, the speech coil framework It is connected on the vibration section, is wound with coil in the lower end position of the speech coil framework.