CN215956641U

CN215956641U - Full-frequency horn structure of ultra-thin pure clear acoustic audio amplifier

Info

Publication number: CN215956641U
Application number: CN202122343617.1U
Authority: CN
Inventors: 郭峰
Original assignee: Dongguan Huirui Electronic Technology Co ltd
Current assignee: Dongguan Huirui Electronic Technology Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-04
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses an ultrathin pure clear acoustic sound box full-frequency loudspeaker structure, wherein a voice coil is provided with a cylindrical voice coil framework, the top of the voice coil framework is directly or indirectly connected to a vibrating diaphragm, the lower part of the voice coil framework is movably sleeved on the upper part of a magnet group, and the voice coil and the magnet group are concentrically intersected and matched; the loudspeaker disk frame, the U-shaped iron, the magnet group, the voice coil and the vibrating diaphragm are all located on the same axis. In the prior art, the voice coil is arranged above the electromagnetic group, and the size of the voice coil is smaller than the diameter of the electromagnetic group.

Description

Full-frequency horn structure of ultra-thin pure clear acoustic audio amplifier

Technical Field

The utility model relates to the technical field of ultrathin sound boxes, in particular to an ultrathin pure clear acoustic sound box full-frequency loudspeaker structure.

Background

At present, in ultra-thin pure clear acoustics audio amplifier, receive the little restriction in audio amplifier inner chamber space, generally adopt the ultra-thin horn structure of small bore, the ultra-thin horn structure of this kind of small bore does not have bullet ripples bearing structure, it is little to have effective promotion area, the low grade shortcoming of concentricity leads to ultra-thin loudspeaker in full frequency range, the low frequency performance is poor, well high frequency tone quality is unclear to and the resolution is poor, thereby the tone quality that leads to ultra-thin pure clear acoustics audio amplifier is difficult to improve.

Therefore, there is a need for an improved horn structure in an ultra-thin clear acoustic enclosure.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an ultrathin pure clear acoustic sound box full-frequency loudspeaker structure, which can ensure that the full-frequency loudspeaker structure has an ultrathin volume and simultaneously maximize the size of a voice coil in the structure, so that the ultrathin sound box with the same volume has better low-frequency expressive force, lower distortion and better tone quality.

In order to achieve the purpose, the utility model adopts the technical scheme that: an ultrathin pure-clear acoustic sound box full-frequency loudspeaker structure comprises a loudspeaker disk frame, a U-shaped iron, a magnet group, a voice coil and a vibrating diaphragm, wherein a blank holder is arranged at the top of the loudspeaker disk frame; the loudspeaker disk frame, the U-shaped iron, the magnet group, the voice coil and the vibrating diaphragm are all located on the same axis. This full-frequency horn structure can make the ultra-thin audio amplifier of the same volume have the voice coil loudspeaker voice coil of bigger size, makes the ultra-thin audio amplifier of the same volume have better low frequency expression power to the distortion factor is lower, and tone quality is better.

In a further technical scheme, the vibrating diaphragm comprises an aluminum cone and an R ring, the middle axis of the aluminum cone and the middle axis of the R ring are in the same straight line, the circumferential part of the aluminum cone is bent to form a pasting part, the pasting part is bonded with the inner circumference of the R ring, and the outer circumference of the R ring is bonded on the top of the horn disc frame through the edge pressing; the surface of the aluminum cone forms an elliptic arc-shaped concave surface, the surface of the aluminum cone sinks to the upper opening surface of the voice coil framework and covers the upper opening of the voice coil framework, and the aluminum cone is directly or indirectly connected to the voice coil framework.

In a further technical scheme, the pasting part of the aluminum cone comprises a flanging in the downward direction and a sticky edge in the transverse direction, the sticky edge is adhered to the inner periphery of the R ring, and a positioning included angle 350 between the flanging and the outer wall of the voice coil framework is not more than 5 degrees. This structure enables the voice coil and the diaphragm to be kept highly concentric.

In a further technical scheme, a plurality of exhaust holes are symmetrically formed in the upper portion of the voice coil framework, and the exhaust holes are distributed between the elastic wave and the aluminum cone. The structure can effectively discharge air in the inner cavity of the voice coil in the operation process, thereby avoiding air flow sound generated when the ultrathin sound box operates.

In a further technical scheme, this full-frequency loudspeaker structure is provided with bullet ripples, and bullet ripples has a mesopore, and the middle part of this voice coil loudspeaker voice coil skeleton is located to the mesopore cover, and the periphery of bullet ripples bonds in this loudspeaker coil loudspeaker disk frame, and the axis of bullet ripples is in same straight line with the axis of voice coil loudspeaker voice coil skeleton. The structure avoids the transverse shaking of the voice coil during operation, keeps the voice coil in a highly concentric state, and simultaneously keeps the voice coil to have good compliance.

In a further technical scheme, the magnet group is composed of an auxiliary magnet, a magnetic conducting iron sheet and a main magnet which are sequentially and concentrically arranged from top to bottom, the magnetism of the main magnet is opposite to that of the auxiliary magnet, the main magnet is fixed on the bottom surface of an inner cavity of the U-shaped iron, and the central axis of the main magnet and the central axis of the U-shaped iron are in the same straight line. The structure can enable the loudspeaker to have better thrust.

In a further technical scheme, an enameled wire is wound at the bottom of the voice coil framework, the enameled wire is wound along the length direction of the voice coil framework to form a coil part of the voice coil, and the coil part is located in the middle between the main magnet and the auxiliary magnet.

In a further technical scheme, the voice coil is provided with at least two cotton silk threads in a symmetrical state, the two cotton silk threads extend along the transverse direction of the voice coil, and a plurality of arc-shaped bends are formed in the two cotton silk threads respectively; the loudspeaker disk rack is fixed with a PCB control element, and the enameled wire and the PCB control element are respectively and electrically connected by a cotton thread. The structure can prevent the voice coil from generating deflection when vibrating, and ensure the cleanness of the sound of the loudspeaker.

In a further technical scheme, four disc frame convex feet are respectively arranged at the peripheral part of the loudspeaker disc frame at intervals, and each disc frame convex foot is respectively provided with a mounting hole for fixing the loudspeaker disc frame through a bolt.

After adopting the structure, compared with the prior art, the utility model has the advantages that: according to the full-frequency loudspeaker structure of the ultrathin pure-clear acoustic loudspeaker box, the voice coil and the magnet group are concentrically and crossly assembled, so that the loudspeaker can be provided with the voice coil with a larger size, and the ultrathin loudspeaker box with the same volume can have better low-frequency expressive force; in addition, each component in the full-frequency loudspeaker structure has higher concentricity, so that the distortion degree of the loudspeaker box is lower, and the sound is cleaner.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic top view of the present invention.

In the figure:

31-horn disk frame, 311-disk frame convex foot, 32-U iron, 33-magnet group, 331-main magnet, 332-magnetic conductive iron sheet, 333-auxiliary magnet, 34-voice coil, 341-voice coil framework, 342-exhaust hole, 343-enameled wire, 344-cotton thread, 35-diaphragm, 350-positioning included angle, 351-aluminum cone, 352-R ring, 353-flanging, 354-sticky edge and 36-elastic wave.

Detailed Description

The following are merely preferred embodiments of the present invention, and do not limit the scope of the present invention.

An ultrathin pure-clear acoustic full-frequency speaker structure is shown in fig. 1 to 3 and comprises a speaker tray frame 31, a U-shaped iron 32, a magnet group 33, a voice coil 34 and a vibrating diaphragm 35, wherein an edge pressing is arranged at the top of the speaker tray frame 31, the vibrating diaphragm 35 is adhered to the speaker tray frame 31 through the edge pressing, the U-shaped iron 32 is installed at the bottom of the speaker tray frame 31, the magnet group 33 is installed in an inner cavity of the U-shaped iron 32, the voice coil 34 is installed on the magnet group 33, the voice coil 34 is provided with a cylindrical voice coil framework 341, the top of the voice coil framework 341 sinks into the bottom of the vibrating diaphragm 35, and the lower part of the voice coil framework 341 is movably sleeved at the upper part of the magnet group 33; the speaker disc rack 31, the U-shaped iron 32, the magnet set 33, the voice coil 34 and the diaphragm 35 are all located on the same axis. The full-frequency loudspeaker structure that this embodiment provided passes through the criss-cross equipment about voice coil 34 and the magnet group 33, when guaranteeing to promote voice coil 34, enlarges voice coil 34's size as far as possible to realize the ultra-thin audio amplifier of the same volume and have the voice coil of bigger size, better low frequency expression power, and the distortion factor is lower, and tone quality is better.

The diaphragm 35 comprises an aluminum cone 351 and an R ring 352, the central axis of the aluminum cone 351 and the central axis of the R ring 352 are in the same line, the circumferential part of the aluminum cone 351 is bent to form a pasting part, the pasting part is used for pasting the inner circumference of the R ring 352, and the outer circumference of the R ring 352 is pasted on the top of the horn disc frame 31 through edge pressing; the surface of the aluminum cone 351 forms an elliptic arc-shaped concave surface, the surface of the aluminum cone 351 sinks below the upper opening surface of the voice coil bobbin 341 and covers the upper opening of the voice coil bobbin 341, and the aluminum cone 351 is directly or indirectly connected to the voice coil bobbin 341. The aluminum cone 351 recessed in the upper opening of the voice coil former 341 can reduce the thickness of the whole structure as much as possible.

The pasting part of the aluminum cone 351 comprises a downward flanging 353 and a transverse adhesive edge 354, the adhesive edge 354 is adhered to the inner periphery of the R ring 352, and the positioning included angle 350 between the flanging 353 and the outer wall of the voice coil framework 341 is 5 degrees. The aluminum cone 351 of the embodiment covers the upper opening of the voice coil bobbin 341, and the flange 353 can effectively prevent the voice coil 34 from generating transverse polarization, so that the voice coil 34 and the diaphragm 35 can keep highly concentric.

A plurality of vent holes 342 are symmetrically formed in the upper portion of the voice coil former 341, and the vent holes 342 are distributed between the elastic wave 36 and the aluminum cone 351. The structure can effectively discharge the moving air flow in the inner cavity of the voice coil in the operation process, thereby avoiding the air flow sound generated when the ultrathin sound box operates.

The full-frequency horn structure is provided with an elastic wave 36, the elastic wave 36 is provided with a middle hole, the middle hole is sleeved in the middle of the voice coil framework 341, the periphery of the elastic wave 36 is bonded to the horn disc frame 31, and the middle shaft of the elastic wave 36 and the middle shaft of the voice coil framework 341 are in the same straight line. The structure avoids the occurrence of transverse polarization when the voice coil runs, keeps the voice coil in a highly concentric state and simultaneously keeps the voice coil in good compliance.

The magnet set 33 is composed of an auxiliary magnet 333, a magnetic conducting iron sheet 332 and a main magnet 331 which are sequentially and concentrically adhered together from top to bottom through high pressure, the magnetism of the main magnet 331 is opposite to that of the auxiliary magnet 333, the main magnet 331 is fixed on the bottom surface of the inner cavity of the U-shaped iron 32, and the central axis of the main magnet 331 and the central axis of the U-shaped iron 32 are in the same straight line. The structure can enable the loudspeaker to have better thrust.

An enamel wire 343 is wound around the bottom of the voice coil bobbin 341, the enamel wire 343 forms a coil portion of the voice coil 34 by being wound along the length direction of the voice coil bobbin 341, and the coil portion is located at an intermediate position between the main magnet 331 and the sub magnet 333.

The voice coil 34 is provided with at least two symmetrical cotton threads 344, the two cotton threads 344 both extend along the transverse direction of the voice coil 34, and the two cotton threads 344 are respectively provided with a plurality of arc bends; the speaker plate rack 31 is fixed with a PCB control element, and the cotton thread 344 is electrically connected with the enameled wire 343 and the PCB control element, respectively. The structure can prevent the voice coil from generating deflection when vibrating, and ensure the cleanness of the sound of the loudspeaker.

Four disc frame convex feet 311 are respectively arranged at intervals at the periphery of the horn disc frame 31, and each disc frame convex foot 311 is respectively provided with a mounting hole for fixing the horn disc frame 31 by a bolt.

The full loudspeaker structure that this embodiment provided compares with the loudspeaker structure of the same volume, has bigger size's voice coil 34 to realized the high concentricity between vibrating diaphragm 35, voice coil 34 and the magnet group 33, made the sound of ultra-thin audio amplifier purer, the low frequency extends the effect better.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. The utility model provides an ultra-thin pure clear acoustics audio amplifier is full frequency horn structure, including loudspeaker plate rail (31), U iron (32), magnet group (33), voice coil loudspeaker voice coil (34) and vibrating diaphragm (35), the top of loudspeaker plate rail (31) is provided with the blank pressing, vibrating diaphragm (35) are pressed through the blank pressing and are glued in loudspeaker plate rail (31), U iron (32) are installed in the bottom of loudspeaker plate rail (31), the inner chamber in U iron (32) is installed in magnet group (33), voice coil loudspeaker voice coil (34) are installed on magnet group (33), its characterized in that: the voice coil (34) is provided with a cylindrical voice coil framework (341), the top of the voice coil framework (341) is directly or indirectly connected with the vibrating diaphragm (35), and the lower part of the voice coil framework (341) is movably sleeved on the upper part of the magnet group (33);

the loudspeaker disk frame (31), the U-shaped iron (32), the magnet group (33), the voice coil (34) and the diaphragm (35) are all located on the same axis.

2. The full-range speaker structure of ultra-thin pure clear acoustic speaker of claim 1, wherein: the vibrating diaphragm (35) comprises an aluminum cone (351) and an R ring (352), the middle axis of the aluminum cone (351) and the middle axis of the R ring (352) are in the same straight line, the circumferential part of the aluminum cone (351) is bent to form a pasting part, the pasting part is used for bonding the inner circumference of the R ring (352), and the outer circumference of the R ring (352) is bonded to the top of the horn disc frame (31) through the edge pressing;

the surface of the aluminum cone (351) forms an elliptic arc-shaped concave surface, the surface of the aluminum cone (351) sinks below the upper opening surface of the voice coil framework (341) and covers the upper opening of the voice coil framework (341), and the aluminum cone (351) is directly or indirectly connected to the voice coil framework (341).

3. The full-range speaker structure of ultra-thin pure clear acoustic speaker of claim 2, wherein: the pasting part of the aluminum cone (351) comprises a flanging (353) facing downwards and a sticky edge (354) in the transverse direction, the sticky edge (354) is adhered to the inner periphery of the R ring (352), and a positioning included angle (350) between the flanging (353) and the outer wall of the voice coil framework (341) is not more than 5 degrees.

4. The full-range speaker structure of ultra-thin pure clear acoustic speaker of claim 1, wherein: the upper part of the voice coil framework (341) is symmetrically provided with a plurality of exhaust holes (342).

5. The full-range speaker structure of the ultra-thin pure clear acoustic speaker of claim 4, wherein: the full-frequency loudspeaker structure is provided with an elastic wave (36), the elastic wave (36) is provided with a middle hole, the middle hole is sleeved in the middle of the voice coil framework (341), the periphery of the elastic wave (36) is bonded to the loudspeaker disc frame (31), and the middle shaft of the elastic wave (36) and the middle shaft of the voice coil framework (341) are located on the same straight line.

6. The full-range speaker structure of the ultra-thin pure clear acoustic speaker of claim 5, wherein: the magnet group (33) is composed of an auxiliary magnet (333), a magnetic conducting iron sheet (332) and a main magnet (331) which are sequentially and concentrically arranged from top to bottom, the magnetism of the main magnet (331) is opposite to that of the auxiliary magnet (333), the main magnet (331) is fixed on the bottom surface of the inner cavity of the U-shaped iron (32), and the central axis of the main magnet (331) and the central axis of the U-shaped iron (32) are in the same straight line.

7. The full-range speaker structure of the ultra-thin pure clear acoustic speaker of claim 6, wherein: the bottom of the voice coil framework (341) is wound with an enameled wire (343), the enameled wire (343) is wound along the length direction of the voice coil framework (341) to form a coil part of the voice coil (34), and the coil part is located in the middle between the main magnet (331) and the auxiliary magnet (333).

8. The full-range speaker structure of ultra-thin pure clear acoustic speaker of claim 7, wherein: the voice coil (34) is provided with at least two symmetrical cotton silk threads (344), the two cotton silk threads (344) extend along the transverse direction of the voice coil (34), and a plurality of arc-shaped bends are formed in the two cotton silk threads (344) respectively;

the loudspeaker plate rack (31) is fixed with a PCB control element, and the cotton silk thread (344) is respectively and electrically connected with the enameled wire (343) and the PCB control element.

9. The full-range speaker structure of ultra-thin pure clear acoustic speaker of claim 8, wherein: the periphery of the loudspeaker disk rack (31) is respectively provided with four disk rack convex feet (311) at intervals, and each disk rack convex foot (311) is respectively provided with a mounting hole for fixing the loudspeaker disk rack (31) through a bolt.