CN214154835U

CN214154835U - Horn type loudspeaker

Info

Publication number: CN214154835U
Application number: CN202120233715.7U
Authority: CN
Inventors: 何朝阳; 杨磊
Original assignee: Changzhou Amt Co ltd
Current assignee: Changzhou Amt Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-09-07
Anticipated expiration: 2031-01-26

Abstract

The utility model provides a loudspeaker, including the casing and set up the first vibration system in the casing, second vibration system and magnetic circuit, first vibration system includes first vibrating diaphragm and first voice coil loudspeaker voice coil, second vibration system includes second vibrating diaphragm and second voice coil loudspeaker voice coil, first vibration system and second vibration system set up at the interval in the first direction, magnetic circuit includes first magnet and body and surrounds the second magnet in first magnet periphery, first magnet and second magnet are established between first vibrating diaphragm and second vibrating diaphragm, first voice coil loudspeaker voice coil is in the magnetic field of first magnet and second magnet, in order to vibrate under the drive of first magnet and second magnet; the second voice coil is within a magnetic field range of the first magnet and the second magnet to vibrate under the driving of the first magnet and the second magnet. The first voice coil and the second voice coil of the loudspeaker share the first magnet and the second magnet, and the two voice coils are driven by the two magnets, so that the performances of the first vibration system and the second vibration system are greatly improved.

Description

Horn type loudspeaker

Technical Field

The utility model belongs to the technical field of the audio frequency technique and specifically relates to a loudspeaker.

Background

The loudspeaker generally includes a diaphragm, a voice coil and a magnet, where one magnet is usually disposed below the voice coil, and the voice coil vibrates under the action of the magnetic field to drive the diaphragm to vibrate. The voice coils and the magnets of many loudspeakers have simple structures, and the overall sensitivity and other performances of the loudspeakers are low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the present invention is to provide an improved speaker for the above-mentioned defects in the related art.

The utility model provides a technical scheme that its technical problem adopted includes: providing a loudspeaker, which comprises a shell, and a first vibration system, a second vibration system and a magnetic circuit system which are arranged in the shell, wherein the first vibration system comprises a first diaphragm and a first voice coil, the second vibration system comprises a second diaphragm and a second voice coil, the first vibration system and the second vibration system are arranged at intervals in a first direction, the magnetic circuit system comprises a first magnet and a second magnet surrounding the periphery of the first magnet, the first magnet and the second magnet are arranged between the first diaphragm and the second diaphragm, and the first voice coil is arranged in the magnetic fields of the first magnet and the second magnet to vibrate under the driving of the first magnet and the second magnet so as to drive the first diaphragm to vibrate; the second voice coil is in the magnetic field range of the first magnet and the second magnet and is driven by the first magnet and the second magnet to vibrate, so that the second diaphragm is driven to vibrate.

Preferably, there is a gap between the first magnet and the second magnet.

Preferably, the first magnet and the second magnet are ring magnets.

Preferably, the axial directions of the first and second voice coils are parallel to the first direction.

Preferably, the second voice coil is flat.

Preferably, the first voice coil is cylindrical.

Preferably, the first vibration system emits sound at a lower frequency than the second vibration system.

Preferably, there is a gap between the first magnet and the second magnet, the position of the first magnet and/or the second magnet corresponding to the gap.

Preferably, the magnetic circuit system includes a bracket connected to the housing and disposed between the first diaphragm and the second diaphragm, and the first magnet and the second magnet are disposed on the bracket.

Preferably, the magnetic circuit system includes a third magnet, the first magnet and the second magnet are disposed on one side of the second diaphragm, the third magnet is disposed on the other side of the second diaphragm, and the second voice coil is in a magnetic field of the third magnet to vibrate under the driving of the third magnet, so as to drive the second diaphragm to vibrate.

Implement the technical scheme of the utility model, following beneficial effect has at least: the first voice coil and the second voice coil of the loudspeaker share the first magnet and the second magnet, and the two voice coils are driven by the two magnets, so that the performances of the first vibration system and the second vibration system are greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a perspective view of a horn of some embodiments of the present invention.

Fig. 2 is a perspective view of another perspective of the horn of fig. 1.

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

Fig. 4 is a sectional view taken at a position a-a in fig. 3.

Fig. 5 is an exploded view of the horn of fig. 1.

Fig. 6 is an exploded view of another perspective of the horn of fig. 1.

The reference numerals in the figures denote: first vibration system 1, first vibrating diaphragm 11, first voice coil 12, second vibration system 2, second vibrating diaphragm 21, second voice coil 22, magnetic circuit system 3, first magnet 31, second magnet 32, third magnet 33, support 34, gap 3a, housing 4, first sound outlet 41, second sound outlet 42, and first direction 5.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that if the terms "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are used herein to indicate an orientation or positional relationship, they are constructed and operated in a particular orientation based on the orientation or positional relationship shown in the drawings, but are only for convenience of describing the present invention, and do not indicate that the device or component being referred to must have a particular orientation, and therefore, should not be construed as limiting the present invention. It is also to be understood that, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "disposed," and the like, if used herein, are intended to be inclusive, e.g., that they may be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. If the terms "first", "second", "third", etc. are used herein only for convenience in describing the present technical solution, they are not to be taken as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to fig. 1 to 6, a loudspeaker in one embodiment of the present invention includes a housing 4, and a first vibration system 1, a second vibration system 2 and a magnetic circuit system 3 disposed in the housing 4, wherein the first vibration system 1 includes a first diaphragm 11 and a first voice coil 12, the second vibration system 2 includes a second diaphragm 21 and a second voice coil 22, the first vibration system 1 and the second vibration system 2 are disposed at an interval in a first direction 5, the magnetic circuit system 3 includes a first magnet 31 and a second magnet 32 surrounding the first magnet 31, the first magnet 31 and the second magnet 32 are disposed between the first diaphragm 11 and the second diaphragm 21, the first magnet 31 and the second magnet 32 are spaced apart from each other, the first magnet 12 is in a magnetic field of the first magnet 31 and the second magnet 32, to vibrate under the common driving of the first magnet 31 and the second magnet 32, thereby driving the first diaphragm 11 to vibrate; the second voice coil 22 is in the magnetic field range of the first magnet 31 and the second magnet 32 to vibrate under the common driving of the first magnet 31 and the second magnet 32, thereby driving the second diaphragm 21 to vibrate. The first diaphragm 11 and the second diaphragm 21 vibrate to generate sound.

The first voice coil 12 and the second voice coil 22 of the loudspeaker of the invention share the first magnet 31 and the second magnet 32, and both voice coils are driven by the two magnets, so that the performance of the first vibration system 1 and the second vibration system 2 is greatly improved. The loudspeaker can be applied to the loudspeaker fields of earphone loudspeakers, mobile phone receivers, mobile phone loudspeakers, pen-type electric loudspeakers and the like.

A gap 3a is provided between the first magnet 31 and the second magnet 32. The first magnet 31 and the second magnet 32 are preferably ring magnets, and the gap 3a has a ring shape.

At least part of the first diaphragm 11 is bulged, and the second diaphragm 21 is a plane diaphragm; the first voice coil 12 is provided on the side of the first diaphragm 11 facing the first and

second magnets

31, 32, and the second voice coil 22 is provided on the side of the second diaphragm 21 facing the first and

second magnets

31, 32.

The axial directions of the first voice coil 12 and the second voice coil 22 are parallel to the first direction 5. The first voice coil 12 extends in the axial direction, the second voice coil 22 extends in the radial direction, the axial dimension of the first voice coil 12 is larger than that of the second voice coil 22, and the radial dimension of the second voice coil 22 is larger than that of the first voice coil 12. The first voice coil 12 is preferably cylindrical. The second voice coil 22 is preferably flat, and the flat shape saves space, so that the size of the horn is smaller and thinner, and the horn can adapt to the trend that the existing electronic equipment has more and more miniaturization.

The frequency of the sound emitted by the first vibration system 1 is lower than that of the sound emitted by the second vibration system 2, the first vibration system 1 is responsible for emitting low-frequency sound, the second vibration system 2 is responsible for emitting high-frequency sound, and the shape of the second voice coil 22 and the driving of the second voice coil by the first magnet 31 and the second magnet 32 are jointly adopted, so that the high-frequency performance of the loudspeaker is better.

There is an annular gap 3a between the first magnet 31 and the second magnet 32, and the position of the first magnet 31 and/or the second magnet 32 corresponds to the gap 3 a. The first magnet 31 protrudes into the gap 3 a.

The magnetic circuit system 3 comprises a support 34 connected to the housing 4 and disposed between the first diaphragm 11 and the second diaphragm 21, and the first magnet 31 and the second magnet 32 are disposed on the support 34, and preferably, the support 34 is hollowed out to minimize the influence on the magnetic field of the first magnet 31 and the second magnet 32.

The magnetic circuit system 3 includes a third magnet 33, the first magnet 31 and the second magnet 32 are disposed on one side of the second diaphragm 21, the third magnet 33 is disposed on the other side of the second diaphragm 21, and the second voice coil 22 is in the magnetic field of the third magnet 33 to vibrate under the driving of the first magnet 31, the second magnet 32 and the third magnet 33, so as to drive the second diaphragm 21 to vibrate, thereby further improving the performance of the second vibration system 2.

The first housing 4 is provided with a first sound outlet hole 41 at one side and a second sound outlet hole 42 at the other side, and preferably, the first sound outlet hole 41 and the second sound outlet hole 42 are respectively provided at opposite sides of the housing. The first sound outlet 41 is located corresponding to the first vibration system 1 for allowing sound of the first vibration system 1 to propagate out of the housing 4, and the second sound outlet 42 is located corresponding to the second vibration system 2 for allowing sound of the second vibration system 2 to propagate out of the housing 4. The number of the second sound outlet holes 42 may be plural, and they are distributed at the periphery of the third magnet 33.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A loudspeaker, comprising a housing (4) and a first vibration system (1), a second vibration system (2) and a magnetic circuit system (3) arranged in the housing (4), wherein the first vibration system (1) comprises a first diaphragm (11) and a first voice coil (12), the second vibration system (2) comprises a second diaphragm (21) and a second voice coil (22), the first vibration system (1) and the second vibration system (2) are arranged at intervals in a first direction (5), the magnetic circuit system (3) comprises a first magnet (31) and a second magnet (32) arranged around the first magnet (31), the first magnet (31) and the second magnet (32) are arranged between the first diaphragm (11) and the second diaphragm (21), and the first voice coil (12) is arranged in the magnetic fields of the first magnet (31) and the second magnet (32), to vibrate under the drive of the first magnet (31) and the second magnet (32), thereby driving the first diaphragm (11) to vibrate; the second voice coil (22) is in the magnetic field range of the first magnet (31) and the second magnet (32) to vibrate under the driving of the first magnet (31) and the second magnet (32), so that the second diaphragm (21) is driven to vibrate.

2. A horn according to claim 1, characterized in that there is a gap (3a) between the first magnet (31) and the second magnet (32).

3. A horn according to claim 2, characterized in that said first magnet (31) and said second magnet (32) are ring magnets.

4. A loudspeaker according to claim 1, wherein the axial direction of the first and second voice coils (12, 22) is parallel to the first direction (5).

5. The horn of claim 4, wherein the second voice coil (22) is flat.

6. The horn of claim 5, wherein the first voice coil (12) is cylindrical.

7. A loudspeaker according to claim 5, characterised in that the sound emitted by the first vibration system (1) is of a lower frequency than the sound emitted by the second vibration system (2).

8. A horn according to claim 6, characterized in that there is a gap (3a) between said first magnet (31) and said second magnet (32), the position of the first magnet (31) and/or of the second magnet (32) corresponding to said gap (3 a).

9. A loudspeaker as claimed in claim 1, wherein the magnetic circuit (3) comprises a support (34) connected to the housing (4) and arranged between the first diaphragm (11) and the second diaphragm (21), the first magnet (31) and the second magnet (32) being arranged on the support (34).

10. A loudspeaker according to claim 1, wherein the magnetic circuit system (3) comprises a third magnet (33), the first magnet (31) and the second magnet (32) being provided on one side of the second diaphragm (21), the third magnet (33) being provided on the other side of the second diaphragm (21), the second voice coil (22) being in the magnetic field of the third magnet (33) to vibrate under the drive of the third magnet (33) to drive the second diaphragm (21) to vibrate.