CN215835516U

CN215835516U - Stereo loudspeaker structure

Info

Publication number: CN215835516U
Application number: CN202121777594.9U
Authority: CN
Inventors: 杨鹏
Original assignee: Dongguan Yiming Electronic Technology Co ltd
Current assignee: Hubei Yiming Electronic Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-15
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a stereo loudspeaker structure, which comprises a bracket, wherein a loudspeaker magnetic circuit is arranged in the bracket, and a voice coil which is of a cylindrical structure and is vertically and upwards arranged is arranged on the loudspeaker magnetic circuit; the voice coil is characterized in that a sound cavity sound guide hole ring is sleeved outside the voice coil, and a plurality of horizontal sound guide holes are formed in the sound cavity sound guide hole ring at intervals along the circumferential direction; an elastic wave which is annular as a whole is arranged between the upper end of the sound cavity sound guide hole ring and the upper end of the voice coil, and the inner side and the outer side of the elastic wave are respectively connected with the voice coil and the sound cavity sound guide hole ring; the dustproof cap is arranged above the voice coil, the edge of the dustproof cap is connected with a circle of supporting sheet which is of an annular plate-shaped structure, the outer side of the supporting sheet is inclined towards the upper side of the outer side, and the edge of the supporting sheet is connected with the opening end of the support through a rubber edge which is integrally designed into an annular structure. The utility model has the advantages of simple structure, reasonable design, capability of improving the utilization rate of a sound field and capability of better obtaining stereo sound.

Description

Stereo loudspeaker structure

Technical Field

The present invention relates to a speaker, and more particularly, to a stereo speaker structure.

Background

The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. The audio frequency electric energy makes the cone or diaphragm vibrate and generate resonance with the surrounding air to make sound through electromagnetic, piezoelectric or electrostatic effect.

At present, the automobile loudspeaker mainly adopts the sound emitted by the front sound field of the loudspeaker as the main sound field for restoring the original sound, and the rear sound field is not sealed or corrected, so that the front and rear sound fields are short-circuited, the utilization rate of the sound field of the loudspeaker is not high, and the phenomenon that the original sound is not true for sound restoration is caused.

Therefore, how to provide a stereo speaker structure which has a simple structure and a reasonable design, can improve the utilization rate of a sound field and can better obtain stereo sound becomes a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, the technical problems to be solved by the present invention are: how to provide a simple structure, reasonable in design can improve the sound field utilization ratio, stereo loudspeaker structure that can be better obtains.

In order to achieve the purpose, the utility model provides a stereo loudspeaker structure, which comprises a bracket, wherein a loudspeaker magnetic circuit is arranged in the bracket, and a voice coil which is of a cylindrical structure and is vertically arranged upwards is arranged on the loudspeaker magnetic circuit; the voice coil is characterized in that a sound cavity sound guide hole ring is sleeved outside the voice coil, and a plurality of horizontal sound guide holes are formed in the sound cavity sound guide hole ring at intervals along the circumferential direction; an elastic wave which is annular as a whole is arranged between the upper end of the sound cavity sound guide hole ring and the upper end of the voice coil, and the inner side and the outer side of the elastic wave are respectively connected with the voice coil and the sound cavity sound guide hole ring; be equipped with the dust cap above the voice coil loudspeaker voice coil, the dust cap border is connected with the backing sheet that just outside slope set up towards outside top of round annular platelike structure, links to each other through wholly being the gluey limit of annular structural design between backing sheet border and the support opening end, still the level is equipped with the drum paper of annular structural design above the backing sheet, and the drum paper middle part is equipped with the hole of stepping down in order to supply the dust cap middle part to arch the position vertical upwards to pass.

In this way, in the stereo speaker, the support is used as a support member for providing support and is used for installing and supporting a speaker magnetic circuit, an elastic wave, a voice coil, a sound cavity sound guide hole ring and a piece of drum paper, the speaker magnetic circuit and the voice coil generate a mutual magnetic field to push the drum paper and a dust cap to move up and down and generate vibration with air to generate sound, the sound is corrected in a rear sound field sound cavity, airflow is further corrected and emitted through a sound guide hole in the sound cavity sound guide hole ring and is perfectly combined with a front sound field, and a stereo speaker structural mode is generated. The sound is revised in the sound cavity of the rear sound field in the structure, the airflow is further revised through the sound guide hole on the sound guide hole ring of the sound cavity, the structural design is simpler, the utilization rate of the sound field can be improved, and stereo sound can be better obtained.

Preferably, a circle of supporting step surface with an annular structure is arranged on the lower end surface of the sound cavity sound guide hole ring in the support, the lower end surface of the sound cavity sound guide hole ring is attached to the supporting step surface, and the inner side edge of the lower end surface of the sound cavity sound guide hole ring extends downwards to form a section of limiting cylinder part with a cylindrical structure and is correspondingly inserted into the mounting hole formed in the lower end in the support.

Like this, through set up the support step face in support inside to the terminal surface forms spacing section of thick bamboo portion under the sound chamber sound guide hole ring, can make things convenient for more to the installation location of sound chamber sound guide hole ring, and structural design is more reasonable, more easy to assemble.

As optimization, the inner hole of the sound cavity sound guide hole ring is integrally of a conical hole structure with the upper end being large in diameter and the lower end being small in diameter.

Like this, through with the bell mouth structure that the big lower extreme diameter of sound chamber sound guide hole ring hole design set up for upper end diameter is little, can make the relative area of bullet ripples and sound chamber sound guide hole ring hole bigger for the effective working area of bullet ripples is bigger.

And optimally, the inner side surface of the support sheet inclines towards the lower part of the inner side and extends towards the lower bending direction to form a limiting sleeve ring section sleeved at the upper end of the voice coil.

Like this, through the stop collar ring section that the backing sheet inboard formed, can support and spacing restraint the voice coil loudspeaker voice coil, structural design is simple reasonable.

Preferably, the outer side edge of the dust cap is bent and extended towards the upper part of the outer side in an inclined mode to form a circle of fixing part and is connected to the inner side edge of the supporting sheet in an attached mode.

Therefore, the connection between the dustproof cap and the supporting sheet is more reliable, and the design is more reasonable.

As optimization, the speaker magnetic circuit includes first magnetic circuit, and first magnetic circuit includes that the whole of upper end is the installation section of frustum structure, is equipped with the resettlement hole on the installation section, and the downthehole vertical of resettlement is range upon range of and is equipped with two second magnetic circuits, and makes to form the insertion groove between resettlement hole internal perisporium and the second magnetic circuit and insert in order to supply the butt joint of voice coil loudspeaker voice coil lower extreme.

Therefore, the loudspeaker magnetic circuit structure is simpler and more reasonable in design, and an insertion groove can be better formed.

Preferably, the cross section of the rubber edge is of a semicircular structure which is arched upwards, and the inner side edge of the rubber edge extends towards the inner lower side to form a lap joint part and is attached to the upper surface of the edge of the supporting sheet.

Like this, make things convenient for the support open end and support sheet between be connected more, the gluey limit of design has certain deformation can, can be better follow vibration and take place to warp and subsequent deformation recovery. Furthermore, glue limit outside edge level and outwards extend and form the annular crimping portion of round, correspond in the uncovered position of support the crimping portion is equipped with the installation face that the annular of round and level set up, is equipped with the clamping ring above the crimping portion, and the clamping ring can the butt so that crimping portion lower surface pastes mutually on the installation face. Therefore, the crimping part and the mounting surface are designed, and the pressing ring is adopted for pressing, so that the crimping part can be mounted and fixed on the mounting surface better.

Furthermore, a circle of annular yielding groove is formed in the edge position of the outer side of the mounting surface. Like this, the groove of stepping down of design for the crimping portion outside can have the trend of buckling downwards, compresses tightly the back, makes the installation inseparabler between crimping portion and the installation face.

Furthermore, a circle of crimping protrusions protruding upwards are arranged on the upper surface of the crimping part and correspond to the pressing ring. Like this, through setting up the crimping arch, can be better with the clamping ring cooperation.

The utility model has the beneficial effects that: through the special structural design of the rear cavity of the loudspeaker, the sound of the rear sound field is led out through the sound cavity air guide hole in the sound cavity, the sound is further corrected, some mechanical sound (noise) is filtered, the sound cavity air guide hole obtains the ideal guide hole size suitable for the rear cavity and the airflow to flow through subsequent precise calculation, and therefore the perfect combination of the front sound field and the rear sound field of the loudspeaker is achieved, and the loudspeaker emits stereo sound.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a sectional view a-a of fig. 3.

Fig. 5 is a partially enlarged schematic view of a B position in fig. 4.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 5, a stereo speaker structure includes a support 1, a speaker magnetic circuit 2 is installed in the support, and a voice coil 3 which is cylindrical and is vertically upward is arranged on the speaker magnetic circuit; a sound cavity sound guide hole ring 4 is sleeved outside the voice coil, and a plurality of horizontal sound guide holes 5 are formed in the sound cavity sound guide hole ring at intervals along the circumferential direction; an elastic wave 6 which is annular as a whole is arranged between the upper end of the sound cavity sound guide hole ring and the upper end of the voice coil, and the inner side and the outer side of the elastic wave are respectively connected with the voice coil and the sound cavity sound guide hole ring; be equipped with dust cap 7 above the voice coil loudspeaker voice coil, the dust cap border is connected with the backing sheet 8 that just outside slope set up towards outside top of round annular platelike structure, links to each other through whole rubber limit 9 that is the annular structure design between backing sheet border and the support open end, still the level is equipped with the drum paper 10 of annular structure design above the backing sheet, and the drum paper middle part is equipped with the hole of stepping down for the vertical upwards of the upwards hunch-up position in the middle part of the dust cap to pass.

In this embodiment, a circle of supporting step surface of an annular structure is arranged in the support 1 corresponding to the lower end surface of the sound cavity sound guiding hole ring, the lower end surface of the sound cavity sound guiding hole ring is attached to the supporting step surface, and the inner side edge position of the lower end surface of the sound cavity sound guiding hole ring extends downwards to form a section of limiting cylinder part 11 of a cylindrical structure and is correspondingly inserted into the mounting hole arranged at the lower end in the support.

In this embodiment, the inner hole of the sound cavity sound guiding hole ring 4 is a tapered hole structure with a large upper end diameter and a small lower end diameter.

In this embodiment, the inner side surface of the support piece extends obliquely towards the lower part of the inner side and then bends downwards to form a limiting ring segment 12 sleeved on the upper end of the voice coil.

In the present embodiment, the outer edge of the dust cap 7 is bent and extended toward the upper side of the outer side to form a circle of fixing portion 13, and the fixing portion is attached to the inner edge of the supporting sheet.

In this embodiment, the speaker magnetic circuit includes first magnetic circuit 14, and first magnetic circuit includes that the whole of upper end is the installation section of frustum structure, is equipped with the arrangement hole on the installation section, and the downthehole vertical range upon range of being equipped with of arrangement is two second magnetic circuits 15, and makes to form the insertion groove between arrangement hole internal perisporium and the second magnetic circuit and insert in order to supply the butt joint of voice coil loudspeaker voice coil lower extreme.

In this embodiment, the cross section of the rubber edge 9 is in a semicircular structure which is arched upwards, and the inner side edge of the rubber edge extends inwards and downwards to form a lap joint part 16 which is attached and connected to the upper surface of the edge of the support sheet.

Like this, make things convenient for the support open end and support sheet between be connected more, the gluey limit of design has certain deformation can, can be better follow vibration and take place to warp and subsequent deformation recovery. Specifically, the outer side edge of the glue edge extends outwards horizontally to form a circle of annular crimping portion 17, a circle of annular and horizontally-arranged installation surface is arranged at the position, corresponding to the crimping portion, of the opening of the support, a pressing ring 18 is arranged above the crimping portion, and the pressing ring can abut against the upper end face of the crimping portion to enable the lower surface of the crimping portion to be attached to the installation surface. Therefore, the crimping part and the mounting surface are designed, and the pressing ring is adopted for pressing, so that the crimping part can be mounted and fixed on the mounting surface better.

Specifically, a ring of annular abdicating grooves 19 are formed in the edge position of the outer side of the mounting surface. Like this, the groove of stepping down of design for the crimping portion outside can have the trend of buckling downwards, compresses tightly the back, makes the installation inseparabler between crimping portion and the installation face.

Specifically, a ring of crimping protrusions 20 protruding upward is provided on the upper surface of the crimping portion and corresponding to the pressing ring. Like this, through setting up the crimping arch, can be better with the clamping ring cooperation.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A stereo speaker structure comprises a support, wherein a speaker magnetic circuit is arranged in the support, and a voice coil which is of a cylindrical structure and is vertically arranged upwards is arranged on the speaker magnetic circuit; the voice coil is characterized in that a sound cavity sound guide hole ring is sleeved outside the voice coil, and a plurality of horizontal sound guide holes are formed in the sound cavity sound guide hole ring at intervals along the circumferential direction; an elastic wave which is annular as a whole is arranged between the upper end of the sound cavity sound guide hole ring and the upper end of the voice coil, and the inner side and the outer side of the elastic wave are respectively connected with the voice coil and the sound cavity sound guide hole ring; be equipped with the dust cap above the voice coil loudspeaker voice coil, the dust cap border is connected with the backing sheet that just outside slope set up towards outside top of round annular platelike structure, links to each other through wholly being the gluey limit of annular structural design between backing sheet border and the support opening end, still the level is equipped with the drum paper of annular structural design above the backing sheet, and the drum paper middle part is equipped with the hole of stepping down in order to supply the dust cap middle part to arch the position vertical upwards to pass.

2. A stereo speaker arrangement as claimed in claim 1, wherein: a circle of supporting step surfaces of an annular structure are arranged on the lower end face of the sound cavity sound guide hole ring in the support corresponding to the lower end face of the sound cavity sound guide hole ring, the lower end face of the sound cavity sound guide hole ring is attached to the supporting step surfaces, and the edge position of the inner side of the lower end face of the sound cavity sound guide hole ring extends downwards to form a section of limiting cylinder part of a cylindrical structure and is correspondingly inserted into a mounting hole formed in the lower end in the support.

3. A stereo speaker arrangement as claimed in claim 1, wherein: the inner hole of the sound cavity sound guide hole ring is integrally of a conical hole structure with the upper end being large in diameter and the lower end being small in diameter.

4. A stereo speaker arrangement as claimed in claim 1, wherein: the inner side surface of the support sheet extends towards the lower part of the inner side in an inclined manner and then bends and extends towards the lower part to form a limiting sleeve ring section sleeved at the upper end of the voice coil.

5. A stereo speaker arrangement as claimed in claim 1, wherein: the outer side edge of the dust cap is bent and extended towards the upper part of the outer side in an inclined mode to form a circle of fixing part and is connected to the inner side edge of the supporting sheet in an attached mode.

6. A stereo speaker arrangement as claimed in claim 1, wherein: the loudspeaker magnetic circuit includes first magnetic circuit, and first magnetic circuit includes that the whole of upper end is the installation section of frustum structure, is equipped with the resettlement hole on the installation section, and the downthehole vertical of resettlement is range upon range of and is equipped with two second magnetic circuits, and makes to form the insertion groove between resettlement downthehole perisporium and the second magnetic circuit and insert in order to supply the butt joint of voice coil loudspeaker voice coil lower extreme.

7. A stereo speaker arrangement as claimed in claim 1, wherein: the cross section of the rubber edge is of a semicircular structure which is arched upwards, and the inner side edge of the rubber edge extends towards the lower side of the inner side to form a lap joint part and is attached to the upper surface of the edge of the supporting sheet.