CN217307862U

CN217307862U - Double-sided vibrating loudspeaker

Info

Publication number: CN217307862U
Application number: CN202220400169.6U
Authority: CN
Inventors: 黄锦堂; 唐小峰; 钟敏; 莫焕秋; 曾桂芳
Original assignee: Dongguan Tianlaizhiyin Electro Acoustic Product Co ltd
Current assignee: Dongguan Tianlaizhiyin Electro Acoustic Product Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-08-26
Anticipated expiration: 2032-02-24

Abstract

The utility model particularly relates to a two-sided vibrating speaker, including A face vibration unit and B face vibration unit, be provided with sharing magnetic circuit between A face vibration unit and the B face vibration unit, sharing magnetic circuit includes central pole piece, A face vibration unit and B face vibration unit use central pole piece to set up relatively as the plane of symmetry, for dismantling the connection between A face vibration unit and the B face vibration unit. Through the combination of the A-surface vibration unit, the B-surface vibration unit and the shared magnetic circuit system, the loudspeaker which is light in weight, reliable in structure, simple and easy to assemble and good in acoustic performance is obtained.

Description

Double-sided vibrating loudspeaker

Technical Field

The utility model relates to a speaker technical field, concretely relates to double-sided vibrating speaker.

Background

With the miniaturization and lightness of electronic product design, the size requirement of the speaker installed in the electronic product is higher and higher. A can appear showing to improve electronic product's acoustic performance towards two-sided speakers of two not equidirectional phonation simultaneously, and this type of two-sided speaker is in the same place two phonation units towards opposite direction stack, and two phonation units adopt independent magnetic circuit system and vibration system respectively, mutual noninterference, and such structure has led to two-way speaker's thickness height, structure complicacy and reliability poor. Therefore, it is necessary to develop a dual-speaker that is light, thin, simple in structure, highly reliable, and has good acoustic performance to meet the current application requirements of electronic products.

Disclosure of Invention

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a two-sided vibrating speaker, the speaker equipment is simple and convenient, stable in structure, whole thickness is low and acoustic performance is good.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a two-sided vibrating speaker, includes A face vibration unit and B face vibration unit, be provided with shared magnetic circuit between A face vibration unit and the B face vibration unit, shared magnetic circuit includes central pole piece, A face vibration unit and B face vibration unit use central pole piece as the relative setting of plane of symmetry, be for dismantling the connection between A face vibration unit and the B face vibration unit.

Further, the A-surface vibration unit comprises a first vibrating diaphragm and a first support, the edge of the lower end of the first vibrating diaphragm is fixedly connected with the first support, a first voice coil is arranged at the lower end of the first vibrating diaphragm and is positioned in the first support, first elastic pieces are arranged at two ends of the interior of the first support, and the first elastic pieces are connected with the first voice coil; the B-side vibration unit comprises a second vibrating diaphragm and a second support, the edge of the upper end of the second vibrating diaphragm is fixedly connected with the second support, a second voice coil is arranged at the upper end of the second vibrating diaphragm and located in the second support, second elastic pieces are arranged at two ends of the interior of the second support, and the second elastic pieces are connected with the second voice coil.

Furthermore, the lower end face of the first support and the upper end face of the second support are respectively provided with an insertion groove and a plug connector for being inserted into the insertion groove.

Furthermore, the shared magnetic circuit system comprises a magnetic circuit component A and a magnetic circuit component B, the magnetic circuit component A and the magnetic circuit component B are respectively positioned on two sides of the central pole piece and are symmetrically arranged, the magnetic circuit component A comprises a first washer and a first magnet, the first washer is arranged at the upper end of the first magnet, and the first magnet is arranged at the upper end of the central pole piece; the B-side magnetic circuit component comprises a second washer and a second magnet, the second magnet is arranged at the lower end of the central pole piece, and the second washer is arranged at the lower end of the second magnet.

Furthermore, the shared magnetic circuit system further comprises two yokes, wherein concave portions which are concave inwards are respectively arranged on two sides of the first support and two sides of the second support, the concave portions which are located on the same side of the first support and the second support are correspondingly combined to form an accommodating cavity for the yokes to be placed, and the two yokes are symmetrically arranged in the corresponding accommodating cavities respectively.

Furthermore, a plurality of positioning columns extending outwards are symmetrically arranged on two sides of the central pole piece.

Furthermore, a plurality of concave parts are arranged on one end faces of the first support and the second support, which are opposite to the central pole piece, and the concave parts are correspondingly combined to form an abutting part for the positioning column to penetrate through.

Further, the yoke is provided with at least one through hole.

Furthermore, a first notch is formed in the side wall, close to the first elastic sheet, of the first support, a second notch is formed in the side wall, close to the second elastic sheet, of the second support, the first notch and the second notch are correspondingly combined to form a notch, and an external metal piece penetrates through the notch and is electrically connected with the first elastic sheet and the second elastic sheet.

Furthermore, the first elastic sheet and the second elastic sheet are both metal elastic sheets.

The beneficial effects of the utility model reside in that: the utility model discloses a A face vibration unit, B face vibration unit and sharing magnetic circuit three parts combination have obtained a lightweight, the structure is reliable and the simple and easy speaker of equipment. The loudspeaker has the advantages that the overall thickness of the loudspeaker is effectively reduced through the arrangement of the shared magnetic circuit system, the magnetic energy utilization rate is improved, the operation stability of the shared magnetic circuit system is improved through the arrangement of the central pole piece, the loudspeaker is compact and stable in structure due to the design of the first support and the second support, the overall stability and strength of the loudspeaker are improved due to the arrangement of the yoke, and the application requirement of the existing light and thin electronic product can be met.

Drawings

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

Fig. 2 is a schematic diagram of the partially-disassembled structure of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a schematic sectional structure of the present invention.

Fig. 5 is a schematic structural diagram of the second bracket of the present invention.

The reference signs are: 1-a central pole piece, 2-a first diaphragm, 3-a first support, 4-a first voice coil, 5-a first spring plate, 6-a second diaphragm, 7-a second support, 8-a second voice coil, 9-a second spring plate, 10-a first washer, 11-a first magnet, 12-a second washer, 13-a second magnet, 14-a yoke, 15-a through hole, 101-a positioning column, 301-a first notch, 701-a plug groove, 702-a plug connector, 703-a sunken part, 704-a concave part and 705-a second notch.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-5.

Examples

As shown in fig. 1 to 5, a double-side vibrating speaker includes an a-side vibrating unit and a B-side vibrating unit, a shared magnetic circuit system is provided between the a-side vibrating unit and the B-side vibrating unit, the shared magnetic circuit system includes a central pole piece 1, the a-side vibrating unit and the B-side vibrating unit are oppositely disposed with the central pole piece 1 as a symmetric plane, and the a-side vibrating unit and the B-side vibrating unit are detachably connected.

The utility model discloses a A face vibration unit and B face vibration unit make up to adopt common magnetic circuit to improve the magnetic energy utilization ratio of speaker to strengthen its acoustic performance, the design of magnetic circuit that shares simultaneously also reduces the thickness of speaker, and obtain a lightweight, the structure is reliable, assemble simple and easy speaker.

Further, the a-surface vibration unit comprises a first vibrating diaphragm 2 and a first bracket 3, the edge of the lower end of the first vibrating diaphragm 2 is fixedly connected with the first bracket 3, a first voice coil 4 is arranged at the lower end of the first vibrating diaphragm 2, the first voice coil 4 is located in the first bracket 3, first elastic pieces 5 are arranged at two ends of the inside of the first bracket 3, and the first elastic pieces 5 are connected with the first voice coil 4; the B-side vibration unit comprises a second vibrating diaphragm 6 and a second support 7, the upper end edge of the second vibrating diaphragm 6 is fixedly connected with the second support 7, a second voice coil 8 is arranged at the upper end of the second vibrating diaphragm 6, the second voice coil 8 is located in the second support 7, second elastic pieces 9 are arranged at two ends of the interior of the second support 7, and the second elastic pieces 9 are connected with the second voice coil 8. Specifically, the first support 3 and the second support 8 are both hollow cuboid structures, and the first diaphragm 2 and the second diaphragm 6 are both flat-plate diaphragms.

Further, the lower end face of the first bracket 3 and the upper end face of the second bracket 7 are respectively provided with an insertion groove 701 and an insertion piece 702 for being inserted into the insertion groove 701. When the plug-in unit 702 is correspondingly matched with the plug-in slot 701, the first bracket 3 and the second bracket 7 are detachably connected. Specifically, the number of the inserting grooves 701 on the lower end face of the first support 3 is two, the number of the inserting pieces 702 on the lower end face of the first support 3 is also two, the inserting grooves 701 and the inserting pieces 702 on the first support 3 are diagonally arranged, the inserting grooves 701 and the inserting pieces 702 on the second support 7 are diagonally arranged, the inserting grooves 701 and the inserting pieces 702 on the upper end face of the second support 7 are respectively arranged corresponding to the inserting pieces 702 and the inserting grooves 701 on the lower end face of the first support 3, and therefore the first support 3 and the second support 7 are easy to assemble and stable in connection.

Further, the shared magnetic circuit system comprises an A-side magnetic circuit assembly and a B-side magnetic circuit assembly, the A-side magnetic circuit assembly and the B-side magnetic circuit assembly are respectively located on two sides of the central pole piece 1 and are symmetrically arranged, the A-side magnetic circuit assembly comprises a first washer 10 and a first magnet 11, the first washer 10 is arranged at the upper end of the first magnet 11, and the first magnet 11 is arranged at the upper end of the central pole piece 1; the B-side magnetic circuit component comprises a second washer 12 and a second magnet 13, the second magnet 13 is arranged at the lower end of the central pole piece 1, and the second washer 12 is arranged at the lower end of the second magnet 13. Specifically, the first washer 10, the first magnet 11, the central pole piece 1, the second magnet 13 and the second washer 12 are sequentially arranged from top to bottom.

Further, the shared magnetic circuit system further includes two yokes 14, two sides of the first support 3 and the second support 7 are respectively provided with an inward concave portion 703, the concave portions 703 located on the same side of the first support 3 and the second support 7 are correspondingly combined to form an accommodating cavity for accommodating the yokes 14, and the two yokes 14 are symmetrically arranged in the corresponding accommodating cavities. Specifically, two yokes 14 are arranged in the accommodating cavity, the yokes 14 are attracted inwards by the magnetism of the shared magnetic circuit system to realize assembly, the arrangement of the yokes can improve the stability of the combined A-plane vibration unit and B-plane vibration unit, the effect of enhancing the overall strength of the loudspeaker is achieved, and the loudspeaker structure is more stable.

In this embodiment, the a-side magnetic circuit assembly, the central pole piece 1 and the B-side magnetic circuit assembly are stacked in sequence from top to bottom, and form a magnetic gap with the yoke 14, and the first voice coil 4 and the second voice coil 8 vibrate in the magnetic gap under the driving of the common magnetic circuit system. The thickness of the loudspeaker is effectively reduced by arranging the central pole piece 1 and arranging the yoke 14 on the side face of the loudspeaker.

Furthermore, a plurality of positioning posts 101 extending outwards are symmetrically arranged on two sides of the central pole piece 1. In this embodiment, the positioning pillars 101 and the central pole piece 1 are integrally formed, and the four positioning pillars 101 located on the same side of the central pole piece 1 are provided, wherein the length of the positioning pillars 101 located at the two end portions of the central pole piece 1 is greater than that of the positioning pillars 101 located in the middle portion of the central pole piece 1, which is helpful for positioning and operation stability of the common magnetic circuit system, and also plays a role in limiting the yoke 14.

Furthermore, a plurality of concave portions 704 are respectively arranged on one end face of the first support 3 and one end face of the second support 7 opposite to the central pole piece 1, and the concave portions 704 are correspondingly combined to form an abutting portion for the positioning column 101 to penetrate through. Specifically, the first bracket 3 and the second bracket 7 are provided with four concave portions 704 corresponding to the positioning pillars, the concave portions 704 are formed by downward protrusions on the lower end surfaces of the side walls of the first bracket 3 (or upward depressions on the upper end surfaces of the side walls of the second bracket 7), and the positioning pillars 101 are provided with the abutting portions for abutting, so that deviation or displacement of the shared magnetic circuit system is reduced.

Further, a first notch 301 is formed in the side wall, close to the first elastic sheet 5, of the first support 3, a second notch 705 is formed in the side wall, close to the second elastic sheet 9, of the second support 7, the first notch 301 and the second notch 705 are correspondingly combined to form a notch, and an external metal piece penetrates through the notch and is electrically connected with the first elastic sheet 5 and the second elastic sheet 9. Furthermore, the first elastic sheet 5 and the second elastic sheet 9 are both metal elastic sheets. The stability of speaker has been improved to this metal shrapnel's setting.

Further, the yoke 14 is provided with at least one through hole 15. The through hole 15 is provided in the middle of the yoke 14. In this embodiment, the through hole 15 is one, and the through hole 15 is disposed to match with the notch, so that the air flow and the acting force generated when the a-plane vibration unit and the B-plane vibration unit move can be offset, part of the air can be discharged out of the speaker, and distortion and noise caused by resonance can be avoided.

In the assembly of the loudspeaker in this embodiment, after the a-surface vibration component, the B-surface vibration component and the common magnetic circuit system except the yoke are assembled respectively, the common magnetic circuit system is positioned on the a-surface vibration component (or the B-surface vibration component) to be combined and fixed, then the B-surface vibration component (or the a-surface vibration component) is fixed, and finally the yoke 14 is placed in the accommodating cavity on the side surface of the loudspeaker to be magnetically attracted and connected, so that the assembly of the loudspeaker is completed.

The above embodiment is the preferred implementation of the present invention, and any obvious replacement is within the protection scope of the present invention without departing from the concept of the present invention.

Claims

1. A double-sided vibration type speaker, characterized in that: including A face vibration unit and B face vibration unit, be provided with sharing magnetic circuit between A face vibration unit and the B face vibration unit, sharing magnetic circuit includes central pole piece, A face vibration unit and B face vibration unit use central pole piece as the relative setting of plane of symmetry, be for dismantling the connection between A face vibration unit and the B face vibration unit.

2. A double-sided vibration type speaker as claimed in claim 1, wherein: the A-surface vibration unit comprises a first vibration diaphragm and a first support, the edge of the lower end of the first vibration diaphragm is fixedly connected with the first support, a first voice coil is arranged at the lower end of the first vibration diaphragm and is positioned in the first support, first elastic pieces are arranged at two ends of the interior of the first support, and the first elastic pieces are connected with the first voice coil; the B-side vibration unit comprises a second vibrating diaphragm and a second support, the edge of the upper end of the second vibrating diaphragm is fixedly connected with the second support, a second voice coil is arranged at the upper end of the second vibrating diaphragm and located in the second support, second elastic pieces are arranged at two ends of the interior of the second support, and the second elastic pieces are connected with the second voice coil.

3. A double-sided vibration type speaker as set forth in claim 2, wherein: the lower end face of the first support and the upper end face of the second support are respectively provided with an inserting groove and an inserting piece used for being inserted into the inserting groove.

4. A double-sided vibration type speaker as claimed in claim 1, wherein: the shared magnetic circuit system comprises an A-surface magnetic circuit assembly and a B-surface magnetic circuit assembly, wherein the A-surface magnetic circuit assembly and the B-surface magnetic circuit assembly are respectively positioned on two sides of the central pole piece and are symmetrically arranged, the A-surface magnetic circuit assembly comprises a first washer and a first magnet, the first washer is arranged at the upper end of the first magnet, and the first magnet is arranged at the upper end of the central pole piece; the B-side magnetic circuit component comprises a second washer and a second magnet, the second magnet is arranged at the lower end of the central pole piece, and the second washer is arranged at the lower end of the second magnet.

5. A double-sided vibration type speaker as set forth in claim 2, wherein: the shared magnetic circuit system further comprises two yokes, wherein concave parts which are concave inwards are respectively arranged on two sides of the first support and the second support, the concave parts which are located on the same side of the first support and the second support are correspondingly combined to form accommodating cavities for the yokes to be placed, and the two yokes are symmetrically arranged in the corresponding accommodating cavities respectively.

6. A double-sided vibration type speaker as set forth in claim 2, wherein: and a plurality of positioning columns extending outwards are symmetrically arranged on two sides of the central pole piece.

7. A double-sided vibration type speaker as claimed in claim 6, wherein: a plurality of concave parts are arranged on one end faces of the first support and the second support, opposite to the central pole piece, and the concave parts are correspondingly combined to form an abutting part for the positioning column to penetrate through.

8. A double-sided vibration type speaker as claimed in claim 5, wherein: the yoke is provided with at least one through hole.

9. A double-sided vibration type speaker as set forth in claim 2, wherein: the side wall of the first support close to the first elastic sheet is provided with a first notch, the side wall of the second support close to the second elastic sheet is provided with a second notch, the first notch and the second notch are correspondingly combined to form a notch, and an external metal piece penetrates through the notch and is electrically connected with the first elastic sheet and the second elastic sheet.

10. A double-sided vibration type speaker as set forth in claim 2, wherein: the first elastic sheet and the second elastic sheet are both metal elastic sheets.