CN220965152U

CN220965152U - Loudspeaker assembly and loudspeaker

Info

Publication number: CN220965152U
Application number: CN202420511168.8U
Authority: CN
Inventors: 王东成
Original assignee: Gettop Acoustic Co Ltd
Current assignee: Gettop Acoustic Co Ltd
Priority date: 2024-03-17
Filing date: 2024-03-17
Publication date: 2024-05-14
Anticipated expiration: 2034-03-17

Abstract

The application provides a loudspeaker assembly and a loudspeaker, wherein the loudspeaker assembly comprises a first loudspeaker unit and a second loudspeaker unit; the first loudspeaker unit comprises a first vibrating diaphragm assembly, a first voice coil and a first magnetic circuit assembly, wherein the first voice coil is fixedly connected with the first vibrating diaphragm assembly and is positioned in a first magnetic gap of the first magnetic circuit assembly; the second loudspeaker unit comprises a second vibrating diaphragm assembly, a second voice coil and a second magnetic circuit assembly, wherein the second voice coil is fixedly connected with the second vibrating diaphragm assembly and is positioned in a second magnetic gap of the second magnetic circuit assembly; the outer edge of the second vibrating diaphragm assembly is fixedly connected with the inner edge of the first vibrating diaphragm assembly; the second speaker unit is for operation alone or for operation in conjunction with the first speaker unit. The loudspeaker assembly and the loudspeaker provided by the application have the advantages of small occupied space, low cost, relatively independent two loudspeaker units, independent operation and wider application range.

Description

Loudspeaker assembly and loudspeaker

Technical Field

The application relates to the technical field of sound production devices, in particular to a loudspeaker assembly and a loudspeaker.

Background

With the gradual popularization and development of products such as mobile phones, flat-panel, TWS (time varying signal) headphones and the like, the requirements of people on sounding tone quality of speakers are also higher. At present, many speakers on the market have a set of speaker components for sounding, and a single speaker component is used for meeting the requirements of bass sound effects or meeting the requirements of treble sound effects, but cannot meet the requirements of treble and bass dual sound effects. Therefore, the speaker with the combination structure of the tweeter and the woofer is generated, but the existing combination type speaker has the problems of high cost, occupation of the whole machine space and the like, and meanwhile, the tweeters and the woofers of the combination type speaker are operated simultaneously, so that the requirement of independently operating the tweeters in certain special scenes can not be met, and the user experience is poor.

Disclosure of Invention

Based on the above, the application provides a loudspeaker assembly and a loudspeaker, which are used for solving at least one of the problems of high cost, large occupied space of the whole loudspeaker, incapability of taking high pitch into account in the prior art.

In order to achieve the above object, the technical solution of the embodiment of the present application is as follows:

In one aspect, an embodiment of the present application provides a speaker assembly, including a first speaker unit and a second speaker unit; the first loudspeaker unit comprises a first vibrating diaphragm assembly, a first voice coil and a first magnetic circuit assembly, wherein the first voice coil is fixedly connected with the first vibrating diaphragm assembly and is positioned in a first magnetic gap of the first magnetic circuit assembly; the second loudspeaker unit comprises a second vibrating diaphragm assembly, a second voice coil and a second magnetic circuit assembly, wherein the second voice coil is fixedly connected with the second vibrating diaphragm assembly and is positioned in a second magnetic gap of the second magnetic circuit assembly; the outer edge of the second vibrating diaphragm assembly is fixedly connected with the inner edge of the first vibrating diaphragm assembly; the second speaker unit is for operation alone or for operation in conjunction with the first speaker unit.

In one embodiment, the first diaphragm assembly includes a first diaphragm portion and a first dome portion fixedly connected to an inner edge of the first diaphragm portion; the second vibrating diaphragm assembly comprises a second vibrating diaphragm part and a second ball top part fixedly connected with the inner edge of the second vibrating diaphragm part; the outer edge of the second vibrating diaphragm part is fixedly connected with the inner edge of the top of the first ball.

In one embodiment, the first voice coil is fixedly connected to the first dome portion, and the second voice coil is fixedly connected to the second dome portion.

In one embodiment, the effective vibration area of the second speaker unit is smaller than the effective vibration area of the first speaker unit.

In one embodiment, the effective vibration mass of the first speaker unit is greater than the effective vibration mass of the second speaker unit.

In one embodiment, the first voice coil is connected to the first outer pad through a first voice coil pad, and the second voice coil is connected to the second outer pad through a second voice coil pad.

In one embodiment, the first voice coil bonding pad comprises a first voice coil positive bonding pad and a first voice coil negative bonding pad, the first outer bonding pad comprises a first positive outer bonding pad and a first negative outer bonding pad, the first voice coil positive bonding pad is connected with the first positive outer bonding pad, and the first voice coil negative bonding pad is connected with the first negative outer bonding pad;

the second voice coil bonding pad comprises a second voice coil positive electrode bonding pad and a second voice coil negative electrode bonding pad, the second outer bonding pad comprises a second positive electrode outer bonding pad and a second negative electrode outer bonding pad, the second voice coil positive electrode bonding pad is connected with the second positive electrode outer bonding pad, and the second voice coil negative electrode bonding pad is connected with the second negative electrode outer bonding pad;

The first anode outer bonding pad and the second anode outer bonding pad are used for being connected with a power supply anode respectively, and the first cathode outer bonding pad and the second cathode outer bonding pad are used for being connected with a power supply cathode respectively.

In one embodiment, the second magnetic circuit assembly includes a central magnetic steel and a first side magnetic steel surrounding the central magnetic steel, and the second magnetic gap is formed between the central magnetic steel and the first side magnetic steel;

The first magnetic circuit assembly comprises second side magnetic steels, the second side magnetic steels are arranged outside the first side magnetic steels in a surrounding mode, and a first magnetic gap is formed between the second side magnetic steels and the first side magnetic steels.

In one embodiment, the first diaphragm portion and the second diaphragm portion each include one of a silicone film, a PEEK film, or a TPEE film.

On the other hand, the embodiment of the application provides a loudspeaker, which comprises the loudspeaker assembly.

The application has at least the following beneficial effects: the loudspeaker assembly comprises two loudspeaker units, wherein the two loudspeaker units are relatively independent and respectively comprise a vibrating diaphragm assembly, a voice coil and a magnetic circuit assembly, the outer edge of the second vibrating diaphragm assembly is fixedly connected with the inner edge of the first vibrating diaphragm assembly, that is to say, the first loudspeaker unit is arranged around the second loudspeaker unit, the whole space occupied by the two loudspeaker units is effectively reduced, the second loudspeaker unit can independently operate to meet the requirements of high-pitched sound effects of users, meanwhile, the two loudspeaker units can also operate simultaneously, three-dimensional sound effects are realized, the loudspeaker can simultaneously take account of the high-pitched sound effects and the low-pitched sound effects, and the loudness of the loudspeaker is improved, so that the applicable scene of the loudspeaker is wider.

Drawings

Fig. 1 is a schematic cross-sectional structure of a speaker assembly according to an embodiment of the present application.

Fig. 2 is a schematic top view of a speaker assembly according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a conductive circuit structure of a first voice coil and a second voice coil according to an embodiment of the present application.

The meaning of the various reference numerals in the drawings is as follows:

1. A lower polar plate; 2. a first speaker unit; 21. a first diaphragm assembly; 211. a first diaphragm portion; 212. a first ball top; 22. a first voice coil; 23. a second side magnetic steel; 231. a first magnetic gap; 3. a second speaker unit; 31. a second diaphragm assembly; 311. a second diaphragm portion; 312. a second ball top; 32. a second voice coil; 33. a second magnetic circuit assembly; 331. a center magnetic steel; 332. a first side magnetic steel; 333. a second magnetic gap; 4. an upper polar plate; 5. a support part; 6. a first voice coil pad; 61. a first voice coil positive electrode pad; 62. a first voice coil negative electrode pad; 7. a first outer pad; 71. a first positive electrode outer pad; 72. a first negative electrode outer pad; 8. a second voice coil pad; 81. a second voice coil positive electrode pad; 82. a second voice coil negative electrode pad; 9. a second outer pad; 91. a second positive electrode outer pad; 92. a second negative electrode outer pad; 10. centering support.

Detailed Description

The technical scheme of the application is further elaborated below by referring to the drawings in the specification and the specific embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the implementations of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The speaker of the embodiments of the present application includes a housing (not shown) and a speaker assembly disposed within the housing. Referring to fig. 1 and 2, the speaker assembly of the present embodiment includes a lower plate 1 disposed in a housing, and a first speaker unit 2 and a second speaker unit 3 disposed on the lower plate 1.

The second speaker unit 3 includes a second diaphragm assembly 31, a second voice coil 32, and a second magnetic circuit assembly 33, the second voice coil 32 is fixedly connected to the second diaphragm assembly 31, and the second voice coil 32 is located in a second magnetic gap 333 of the second magnetic circuit assembly 33.

Specifically, the second magnetic circuit assembly 33 is disposed on the lower pole plate 1, and includes a central magnetic steel 331 and a first side magnetic steel 332 surrounding the central magnetic steel 331, a second magnetic gap 333 is formed between the central magnetic steel 331 and the first side magnetic steel 332, and an upper pole plate 4 is disposed on a side surface of the central magnetic steel 331 away from the lower pole plate 1. The second diaphragm assembly 31 includes a second diaphragm portion 311 and a second dome portion 312 fixedly connected to an inner edge of the second diaphragm portion 311. One end of the second voice coil 32 far away from the lower pole plate 1 is fixedly connected with the second spherical top 312 through the second vibrating diaphragm 311, and the second voice coil 32 is fixed near the outer edge of the second spherical top 312, and a section of the second voice coil 32 near the lower pole plate 1 is located in the second magnetic gap 333.

The first speaker unit 2 includes a first diaphragm assembly 21, a first voice coil 22, and a first magnetic circuit assembly, the first voice coil 22 is fixedly connected to the first diaphragm assembly 21, and the first voice coil 22 is located in a first magnetic gap 231 of the first magnetic circuit assembly.

Specifically, the first magnetic circuit assembly includes a second side magnetic steel 23, where the second side magnetic steel 23 is enclosed outside the first side magnetic steel 332 and is located on the lower pole plate 1, and a first magnetic gap 231 is formed between the second side magnetic steel 23 and the first side magnetic steel 332. The first diaphragm assembly 21 includes a first diaphragm portion 211 and a first dome portion 212 fixedly connected to an inner edge of the first diaphragm portion 211. The outer edge of the second diaphragm portion 311 is fixedly connected to the inner edge of the first dome portion 212. One end of the first voice coil 22, which is far away from the lower pole plate 1, is fixedly connected with the first ball top 212 through the first vibrating diaphragm 211, and a section of the first voice coil 22, which is close to the lower pole plate 1, is located in the first magnetic gap 231. The second limit magnet steel 23 is kept away from the one side surface of polar plate 1 down and is equipped with supporting part 5, and supporting part 5 is L type, and the bottom and the second limit magnet steel 23 fixed connection of supporting part 5, the top and the first vibrating diaphragm portion 211 fixed connection of supporting part 5 for support first vibrating diaphragm portion 211.

As shown in fig. 3, the first voice coil 22 and the second voice coil 32 are not communicated with each other, and are conducted through separate conducting lines. For example, in the present embodiment, the first voice coil 22 is connected to the first outer pad 7 through the first voice coil pad 6, and the second voice coil 32 is connected to the second outer pad 9 through the second voice coil pad 8.

The first voice coil pad 6 includes a first voice coil positive electrode pad 61 and a first voice coil negative electrode pad 62, the first outer pad 7 includes a first positive electrode outer pad 71 and a first negative electrode outer pad 72, the first voice coil positive electrode pad 61 and the first positive electrode outer pad 71 are connected, and the first voice coil negative electrode pad 62 and the first negative electrode outer pad 72 are connected.

The second voice coil pad 8 includes a second voice coil positive electrode pad 81 and a second voice coil negative electrode pad 82, the second outer pad 9 includes a second positive electrode outer pad 91 and a second negative electrode outer pad 92, the second voice coil positive electrode pad 81 and the second positive electrode outer pad 91 are connected, and the second voice coil negative electrode pad 82 and the second negative electrode outer pad 92 are connected.

The first positive electrode outer pad 71 and the second positive electrode outer pad 91 are for connection with a positive electrode of a power supply, respectively, and the first negative electrode outer pad 72 and the second negative electrode outer pad 92 are for connection with a negative electrode of the power supply, respectively.

The first voice coil bonding pad 6, the second voice coil bonding pad 8, the first outer bonding pad 7 and the second outer bonding pad 9 are respectively arranged on the centering support piece 10, and the centering support piece 10 is respectively arranged on one side of the first voice coil 22 and one side of the second voice coil 32, which are far away from the lower polar plate 1.

The second speaker unit 3 is for operation alone or for operation in conjunction with the first speaker unit 2.

In order to obtain a better sound production effect, the effective vibration area of the second speaker unit 3 is required to be smaller than that of the first speaker unit 2, and the effective vibration mass of the first speaker unit 2 is required to be larger than that of the second speaker unit 3.

In the present embodiment, the first speaker unit 2 serves as a bass unit of a speaker, and the second speaker unit 3 serves as a treble unit of the speaker. The second voice coil 32 may be made of copper clad aluminum wire to achieve lighter vibration mass and thus better high-pitched sound effect. The first voice coil 22 may be made of copper or alloy wire to obtain a larger vibration mass, thereby obtaining a better bass effect. The first dome portion 212 and the second dome portion 312 may be made of a metal composite material, such as an aluminum composite material, and the first dome portion 212 and the second dome portion 312 may be made of the same material, or may be made of different materials. The first diaphragm portion 211 and the second diaphragm portion 311 may be made of one of a silicone film, a PEEK (polyether ether ketone) film, a TPEE (thermoplastic polyester elastomer) film, etc., and the first diaphragm portion 211 and the second diaphragm portion 311 may be made of a film material of the same material, or may be made of a film material of different materials. The shape of the first diaphragm portion 211 may be planar or may be a folded ring shape, and the shape of the second diaphragm portion 311 is preferably planar. When the first voice coil 22 and the second voice coil 32 are simultaneously conducted, alternating currents with the same phase are required to be supplied to ensure that the vibration directions of the first voice coil 22 and the second voice coil 32 are the same.

The working principle of the loudspeaker of the embodiment of the application is as follows: when the second voice coil 32 is electrified independently, the second voice coil 32 is stressed in the magnetic field formed by the second magnetic circuit assembly 33 to drive the second diaphragm assembly 31 to vibrate, and because the second diaphragm portion 311 is made of flexible material and the first diaphragm assembly 21 has larger effective vibration mass, the effective vibration area of the second diaphragm assembly 31 is smaller and the mass of the second voice coil 32 is smaller, the first diaphragm assembly 21 basically does not participate in vibration sounding, and at this time, the loudspeaker can obtain better high-frequency effect in a high-frequency band. When the first voice coil 22 and the second voice coil 32 are respectively energized, the first voice coil 22 and the second voice coil 32 synchronously drive the first diaphragm assembly 21 and the second diaphragm assembly 31 to move in the same direction, and the dual-voice coil structure can provide a larger BL value (product of the gap magnetic induction intensity B and the effective voice coil length L) for the whole loudspeaker, and can obtain higher loudness.

According to the loudspeaker assembly and the loudspeaker provided by the embodiment of the application, through the structural design of the double voice coils and the double vibrating diaphragms, the high-low sound effect can be effectively combined, and the stereo sound effect is achieved on the premise of not occupying space. Through two conduction lines, two voice coils, two vibrating diaphragm structures, provide the higher BL value and the higher high pitch of broadband. The loudspeaker can be independently used as a high-pitch loudspeaker and simultaneously can also be used as a high-low-pitch loudspeaker, so that the applicable scene of the loudspeaker is increased, the application is wider, and the applicability is stronger. The loudspeaker is provided with the first vibrating diaphragm part and the second vibrating diaphragm part, so that the effective vibrating area of the loudspeaker is increased, and the sound quality and volume of sound production are improved. The two vibration units are respectively provided with independent conduction circuits, and when one of the conduction circuits of the vibration units fails, the normal conduction of the other conduction circuit is not affected.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A speaker assembly comprising a first speaker unit and a second speaker unit; the first loudspeaker unit comprises a first vibrating diaphragm assembly, a first voice coil and a first magnetic circuit assembly, wherein the first voice coil is fixedly connected with the first vibrating diaphragm assembly and is positioned in a first magnetic gap of the first magnetic circuit assembly; the second loudspeaker unit comprises a second vibrating diaphragm assembly, a second voice coil and a second magnetic circuit assembly, wherein the second voice coil is fixedly connected with the second vibrating diaphragm assembly and is positioned in a second magnetic gap of the second magnetic circuit assembly; the outer edge of the second vibrating diaphragm assembly is fixedly connected with the inner edge of the first vibrating diaphragm assembly; the second speaker unit is for operation alone or for operation in conjunction with the first speaker unit.

2. The loudspeaker assembly of claim 1, wherein the first diaphragm assembly comprises a first diaphragm portion and a first dome portion fixedly connected to an inner edge of the first diaphragm portion; the second vibrating diaphragm assembly comprises a second vibrating diaphragm part and a second ball top part fixedly connected with the inner edge of the second vibrating diaphragm part; the outer edge of the second vibrating diaphragm part is fixedly connected with the inner edge of the top of the first ball.

3. The loudspeaker assembly of claim 2 wherein the first voice coil is fixedly connected to the first dome portion and the second voice coil is fixedly connected to the second dome portion.

4. A loudspeaker assembly according to claim 1, wherein the effective vibration area of the second loudspeaker unit is smaller than the effective vibration area of the first loudspeaker unit.

5. A loudspeaker assembly according to claim 1, wherein the effective vibrational mass of the first loudspeaker unit is greater than the effective vibrational mass of the second loudspeaker unit.

6. The loudspeaker assembly of claim 1 wherein the first voice coil is connected to the first outer bond pad by a first voice coil bond pad and the second voice coil is connected to the second outer bond pad by a second voice coil bond pad.

7. The loudspeaker assembly of claim 6, wherein the first voice coil pad comprises a first voice coil positive pad and a first voice coil negative pad, the first outer pad comprises a first positive outer pad and a first negative outer pad, the first voice coil positive pad and the first positive outer pad are connected, and the first voice coil negative pad and the first negative outer pad are connected;

8. The loudspeaker assembly of claim 1, wherein the second magnetic circuit assembly comprises a center magnetic steel and a first side magnetic steel surrounding the center magnetic steel, and the second magnetic gap is formed between the center magnetic steel and the first side magnetic steel;

9. The loudspeaker assembly of claim 2, wherein the first diaphragm portion and the second diaphragm portion each comprise one of a silicone film, a PEEK film, or a TPEE film.

10. A loudspeaker comprising a loudspeaker assembly as claimed in any one of claims 1 to 9.