CN218217666U

CN218217666U - Composite loudspeaker

Info

Publication number: CN218217666U
Application number: CN202222687022.2U
Authority: CN
Inventors: 黄坚
Original assignee: Shenzhen Xinyidai Electroacoustic Technology Co ltd
Current assignee: Shenzhen Xinyidai Electroacoustic Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-01-03
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses a composite horn, which comprises a bone conduction horn coil, a moving coil horn coil, a shared permanent magnet and a shared magnetizer; the bone conduction horn coil is arranged near one end of the common permanent magnet, and the moving coil horn coil is arranged near the other end of the common permanent magnet; the shared magnetizer is located outside the shared permanent magnet, one end of the shared magnetizer is close to the bone conduction horn coil, and the other end of the shared magnetizer is close to the moving coil horn coil. The utility model discloses a bone conduction horn coil and moving coil horn coil of compound loudspeaker share a permanent magnet, can reduce the occupation space of loudspeaker.

Description

Composite loudspeaker

Technical Field

The utility model relates to an acoustics device technical field especially relates to a speaker.

Background

A speaker is also called a "horn", which is a transducer for converting an electrical signal into an acoustic signal, and is a very common electroacoustic transducer, which is found in electronic and electrical devices for generating sound. The loudspeaker is the weakest component in the sound equipment, and is the most important component for sound effect, because the sound quality is greatly influenced by the good and bad performance of the loudspeaker. The horn is of various kinds and has a large price difference. 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.

The type of loudspeaker is more, and is common to have moving coil loudspeaker and bone conduction loudspeaker etc. and the compound loudspeaker that current moving coil loudspeaker and bone conduction loudspeaker are in the same place is simply to install the loudspeaker of different grade type respectively on different positions, reaches the purpose that different scenes let the loudspeaker sound production that corresponds, but the permanent magnet of every loudspeaker is placed respectively in the cavity that corresponds loudspeaker, and occupation space is big, consequently need do certain improvement.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a compound loudspeaker of a permanent magnet of sharing.

A composite horn comprises a bone conduction horn coil, a moving coil horn coil, a shared permanent magnet and a shared magnetizer;

the bone conduction horn coil is arranged near one end of the common permanent magnet, and the moving coil horn coil is arranged near the other end of the common permanent magnet;

the shared magnetizer is located outside the shared permanent magnet, one end of the shared magnetizer is close to the bone conduction horn coil, and the other end of the shared magnetizer is close to the moving coil horn coil.

The bone conduction loudspeaker comprises a bone conduction loudspeaker vibrating diaphragm, a first shell, a vibrating diaphragm fixing ring, a second shell and a coil loudspeaker vibrating diaphragm;

the periphery embedding of bone conduction loudspeaker vibrating diaphragm the inside wall of shell one, the interior circumference embedding of this bone conduction loudspeaker vibrating diaphragm the lateral wall of vibrating diaphragm retainer plate, the one end of vibrating diaphragm retainer plate is connected the surface of shell two, the inboard of shell two towards sharing permanent magnet is connected with coil loudspeaker vibrating diaphragm.

Further, the common magnetizer is sleeved on the outer side wall of the vibrating diaphragm fixing ring;

one end of the shared magnetizer is connected with the bone conduction loudspeaker diaphragm, and the other end of the shared magnetizer is connected with the step part of the outer side wall of the shell.

Furthermore, the bone conduction horn coil is fixedly connected to one side of the shell facing the bone conduction horn diaphragm.

Furthermore, the moving coil loudspeaker coil is fixedly connected to one side of the coil loudspeaker diaphragm, which faces the common permanent magnet.

Further, the bone conduction loudspeaker diaphragm is a metal diaphragm.

Further, the material of the coil loudspeaker diaphragm includes, but is not limited to, a paper disc diaphragm, a plastic diaphragm or a synthetic fiber diaphragm.

The circuit further comprises a first circuit board, a conducting spring and a second circuit board, wherein the second circuit board is electrically connected with the first circuit board through the conducting spring;

the bone conduction horn coil is connected with the first circuit board, and the first circuit board is arranged on the outer side wall of the first shell;

the moving coil horn coil is connected with the second circuit board, and the second circuit board covers the step portion.

Further, the shape of the vertical section of the common permanent magnet includes, but is not limited to, a rectangle, a "convex" shape, and an inverted "convex" shape.

Furthermore, the second shell is made of plastic.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

the utility model discloses a bone conduction horn coil and moving coil horn coil of compound loudspeaker share a permanent magnet, can reduce the occupation space of loudspeaker.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein: 1. a composite horn; 10. a bone conduction horn coil; 20. a moving coil horn coil; 30. a common permanent magnet; 40. a common magnetizer; 11. a bone conduction horn diaphragm; 12. a first shell; 13. a diaphragm fixing ring; 14. a second shell; 141. a step portion; 15. a coil horn diaphragm; 16. a first circuit board; 17. a conduction spring; 18. a second circuit board.

Fig. 1 is a schematic view of the internal structure of the composite horn in this embodiment;

fig. 2 is a schematic structural diagram of the composite horn in the present embodiment;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is an exploded view of the composite horn in this embodiment.

Detailed Description

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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the foregoing drawings are used for distinguishing between different objects and not for describing a particular sequential order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1-4, a composite horn 1 includes a bone conduction horn coil 10, a moving coil horn coil 20, a common permanent magnet 30, and a common magnetizer 40;

the bone conduction horn coil 10 is arranged near one end of the common permanent magnet 30, and the moving coil horn coil 20 is arranged near the other end of the common permanent magnet 30;

the common magnetizer 40 is located outside the common permanent magnet 30, one end of the common magnetizer 40 is close to the bone conduction speaker coil 10, and the other end of the common magnetizer 40 is close to the moving coil speaker coil 20. The bone conduction horn with the bone conduction horn coil 10 and the moving coil horn with the moving coil horn coil 20 share one permanent magnet, so that the volume of the composite horn 1 can be reduced.

In this embodiment, the bone conduction speaker further includes a bone conduction speaker diaphragm 11, a first shell 12, a diaphragm fixing ring 13, a second shell 14, and a coil speaker diaphragm 15;

the periphery of bone conduction loudspeaker vibrating diaphragm 11 imbeds the inside wall of shell one 12, and the interior circumference embedding of this bone conduction loudspeaker vibrating diaphragm 11 the lateral wall of vibrating diaphragm retainer plate 13, the one end of vibrating diaphragm retainer plate 13 is connected the surface of shell two 14, the inboard of shell two 14 towards sharing permanent magnet 30 is connected with coil loudspeaker vibrating diaphragm 15. The bone conduction horn diaphragm 11 has an annular shape (refer to reference numeral 11 in fig. 4).

In this embodiment, the common magnetizer 40 is sleeved on the outer sidewall of the diaphragm fixing ring 13;

one end of the common magnetizer 40 is connected with the bone conduction speaker diaphragm 11, and the other end of the common magnetizer 40 is connected with the step part 141 on the outer side wall of the second casing 14. The common magnetic conductor 40 is shaped like a hollow cylinder (refer to reference numeral 40 in fig. 4), and an inner side wall thereof is connected to an outer side wall of the diaphragm fixing ring 13. Common magnetic conductor 40 includes, but is not limited to, a magnetically permeable metal, with less loss as the magnetic field of common permanent magnet 30 passes through common magnetic conductor 40.

In this embodiment, the bone conduction speaker coil 10 is fixedly connected to a side of the first housing 12 facing the bone conduction speaker diaphragm 11. The bone conduction horn coil 10 is directly above the common permanent magnet 30, and the end of the common permanent magnet 30 partially protrudes into the bone conduction horn coil 10.

In this embodiment, the moving-coil horn coil 20 is fixedly connected to a side of the coil horn diaphragm 15 facing the common permanent magnet 30. The moving coil horn coil 20 is located right below the common permanent magnet 30, and the end of the common permanent magnet 30 has a portion extending into the moving coil horn coil 20.

In this embodiment, the bone conduction speaker diaphragm 11 is a metal diaphragm. The metal vibrating diaphragm is a steel sheet vibrating diaphragm, and is excellent in rigidity and good in tone effect.

In this embodiment, the material of the coil speaker diaphragm 15 includes, but is not limited to, a paper disc diaphragm, a plastic diaphragm, or a synthetic fiber diaphragm. The coil loudspeaker diaphragm 15 is a plastic diaphragm, and is low in cost, economical and practical.

In this embodiment, the electronic device further includes a first circuit board 16, a conduction spring 17 and a second circuit board 18, wherein the second circuit board 18 is electrically connected to the first circuit board 16 through the conduction spring 17;

the bone conduction horn coil 10 is connected with the first circuit board 16, and the first circuit board 16 is arranged on the outer side wall of the first shell 12;

the moving coil horn coil 20 is connected to the second circuit board 18, and the second circuit board 18 covers the step portion 141. The conducting spring 17 is made of a tough material and is not easily broken during use, so that the electrical connection between the first circuit board 16 and the second circuit board 18 is broken.

In the present embodiment, the shape of the vertical section of the common permanent magnet 30 includes, but is not limited to, a rectangle, "convex" shape and an inverted "convex" shape. Different shapes of permanent magnets 30 require the use of suitably shaped coils.

In this embodiment, the second housing 14 is made of plastic. The magnetic field of the permanent magnet 30 passing through the second plastic shell 14 has almost negligible influence on the loss and distribution of the magnetic field.

It should be understood that the above-described embodiments are merely exemplary of some, and not all, embodiments of the present application, and that the drawings illustrate preferred embodiments of the present application without limiting the scope of the claims appended hereto. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. A composite horn is characterized by comprising a bone conduction horn coil (10), a moving coil horn coil (20), a shared permanent magnet (30) and a shared magnetizer (40);

the bone conduction horn coil (10) is arranged near one end of the common permanent magnet (30), and the moving coil horn coil (20) is arranged near the other end of the common permanent magnet (30);

sharing magnetizer (40) are located the outside of sharing permanent magnet (30), the one end of sharing magnetizer (40) closes on bone conduction horn coil (10), the other end of sharing magnetizer (40) closes on movable coil horn coil (20).

2. The composite loudspeaker of claim 1, further comprising a bone conduction loudspeaker diaphragm (11), a first housing (12), a diaphragm retaining ring (13), a second housing (14), and a coil loudspeaker diaphragm (15);

the periphery embedding of bone conduction loudspeaker vibrating diaphragm (11) the inside wall of shell (12), the interior circumference embedding of this bone conduction loudspeaker vibrating diaphragm (11) the lateral wall of vibrating diaphragm retainer plate (13), the one end of vibrating diaphragm retainer plate (13) is connected the surface of shell two (14), the inboard of shell two (14) towards sharing permanent magnet (30) is connected with coil loudspeaker vibrating diaphragm (15).

3. The composite loudspeaker of claim 2, wherein the common magnetizer (40) is sleeved on the outer side wall of the diaphragm fixing ring (13);

one end of the shared magnetizer (40) is connected with the bone conduction loudspeaker diaphragm (11), and the other end of the shared magnetizer (40) is connected with the step part (141) of the outer side wall of the second shell (14).

4. The composite horn of claim 2, wherein the bone-conduction horn coil (10) is fixedly connected to a side of the first housing (12) facing the bone-conduction horn diaphragm (11).

5. A composite loudspeaker according to claim 2, wherein the moving-coil loudspeaker coil (20) is fixedly connected to the side of the coil loudspeaker diaphragm (15) facing the common permanent magnet (30).

6. The composite loudspeaker of claim 2, wherein the bone-conduction loudspeaker diaphragm (11) is a metal diaphragm.

7. The composite loudspeaker of claim 2, wherein the coil loudspeaker diaphragm (15) is made of a material including, but not limited to, a paper disc diaphragm, a plastic diaphragm, or a synthetic fiber diaphragm.

8. The composite horn of claim 3, further comprising a first circuit board (16), a conduction spring (17), and a second circuit board (18), wherein the second circuit board (18) and the first circuit board (16) are electrically connected by the conduction spring (17);

the bone conduction horn coil (10) is connected with the first circuit board (16), and the first circuit board (16) is arranged on the outer side wall of the first shell (12);

the moving coil horn coil (20) is connected with the second circuit board (18), and the second circuit board (18) covers the step part (141).

9. The composite horn of claim 1, wherein the shape of the vertical cross-section of the common permanent magnet (30) includes, but is not limited to, rectangular, "convex" and inverted "convex".

10. The composite horn of claim 2, wherein the second shell (14) is made of plastic.