TW202135538A - Loudspeaker structure - Google Patents

Abstract

The present disclosure provides a loudspeaker structure. The loudspeaker structure comprising a magnet, a first magnetic member, a second magnetic member, a first voice coil, a first vibrating member, a second voice coil, and a second vibrating member. The magnet has a first end and a second end opposite to the first end. The first magnetic member is deposed on the first end of the magnet, and the first magnetic member is located inside the magnet. The second magnetic member is deposed on the second end of the magnet, and the second magnetic member is located outside the magnet. The first voice coil is located at the first end, and the first voice coil is located between the magnet and the second magnetic member. The first vibrating member is connected to the first voice coil. The second voice coil is located at the second end, and the second voice coil is located between the magnet and the first magnetic member. The second vibrating member is connected to the second voice coil. The design of the present application integrates two sets of speakers. The two sets of speakers share the same magnet to form a double-vibration sounding structure, so the two sets of speakers form a speaker structure with complementary sound quality.

Description

Loudspeaker structure

This application relates to the technical field of converting electronic signals into sound, and in particular to a speaker structure.

In the prior art, the basic structure of the speaker is composed of a magnet, a voice coil, and a speaker diaphragm. The speaker converts the frequency of the current into sound. The working principle of the loudspeaker is to allow the current to pass through the voice coil to generate a magnetic field. The magnetic field excited by the voice coil and the original magnetic field of the loudspeaker are used to vibrate the loudspeaker diaphragm and produce sound. This is the most commonly used loudspeaker. At present, most of the speakers are a single sound source, which is only a single sound formed by a single voice coil and a single diaphragm. The sound produced by such a speaker is thin and the sound quality is poor.

The embodiment of the present application provides a speaker structure, which can effectively solve the current problem of thin sound and poor sound quality.

In order to solve the above technical problems, this application is implemented as follows:

A speaker structure is provided, which includes a magnet, a first magnetic member, a second magnetic member, a first voice coil, a first vibrating member, a second voice coil, and a second vibrating member. The magnet has a first end and a second end opposite to the first end. The first magnetic part is arranged at the first end of the magnet, and the first magnetic part is located inside the magnet. The second magnetic element is arranged at the second end of the magnet, and the second magnetic element is located outside the magnet. The first voice coil is located at the first end, and the first voice coil is located between the magnet and the second magnetic member. The first vibrating member is connected to the first voice coil.

In the embodiment of the present application, by integrating two sets of speakers together, the first voice coil and the first vibrating member and the second voice coil and the second vibrating member share the same central magnet to form a dual vibration sounding structure, and the two sets The speakers form a speaker structure with complementary sound quality. This can increase the thickness of the sound and make up for the lack of sound quality.

In one of the embodiments, the magnet has a perforation, the first magnetic member has a first bottom plate and a convex column. The convex column is disposed on the first bottom plate. The first bottom plate is disposed on the first end of the magnet. A first annular space is formed between the convex column and the second voice coil is located in the first annular space.

In one of the embodiments, the second magnetic member has a second bottom plate and a side wall, the side wall is ringed around the second bottom plate, the second bottom plate is disposed at the second end of the magnet, and the periphery of the second bottom plate extends to the outside of the magnet. Surrounding the magnet, a second annular space is formed between the magnet and the second magnetic member, and the first voice coil is located in the second annular space.

In one of the embodiments, the magnet has a through hole, the second bottom plate has a bottom hole, the bottom hole communicates with the through hole, and the second voice coil passes through the bottom hole and is placed in the through hole of the magnet.

In one of the embodiments, the first vibrating member and the second vibrating member are diaphragms or/and vibrators.

In one of the embodiments, the diaphragm material includes polyethylene terephthalate, polypropylene, foam, polyethylene naphthalate, titanium composite material, carbon nanocomposite material, or silicone.

In one of the embodiments, the vibrator material includes metal or metal alloy.

In one of the embodiments, a buffer member is further included, and the buffer member covers the outer side of the vibrator.

In one of the embodiments, it further includes a housing, the magnet, the first magnetic member, and the second magnetic member are fixed in the housing, the first vibrating member is provided at one end of the housing, and the second vibrating member is provided at the other end of the housing .

In one of the embodiments, the housing further includes a first housing and a second housing. The first housing has a first support, and the second housing has a second support. The first housing and the second housing are assembled into a housing. A bracket and a second bracket fix the second magnetic member, the first vibrating member is fixed to the first housing, and the second vibrating member is fixed to the second housing.

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Please refer to Figures 1 to 3, Figure 1 is a perspective view of the speaker structure of the first embodiment of the present application, Figure 2 is a perspective cross-sectional view of the line AA' of Figure 1, and Figure 3 is the first embodiment of the present application Cross-sectional view of the speaker structure. As shown in the figure, this embodiment provides a speaker structure 1, which includes a magnet 11, a first magnetic member 12, a second magnetic member 13, a first voice coil 14, a first vibrating member 15, a second voice coil 16 and a first Two vibrating parts 17. The magnet 11 has a first end 111 and a second end 112 opposite to the first end 111. The first magnetic member 12 is disposed at the first end 111 of the magnet 11, and the first magnetic member 12 is located inside the magnet 11. The second magnetic member 13 is disposed at the second end 112 of the magnet 11, and the second magnetic member 13 is located outside the magnet 11. The first voice coil 14 is located at the first end 111, and the first voice coil 14 is located between the magnet 11 and the second magnetic member 13. The first vibrating member 15 is connected to the first voice coil 14. The second voice coil 16 is located at the second end 112, and the second voice coil 16 is located between the magnet 11 and the first magnetic member 12. The second vibrating member 17 is connected to the second voice coil 16.

In this embodiment, the magnet 11 has a ring structure, and the center of the magnet 11 has a through hole 110. The first magnetic member 12 has a first bottom plate 121 and a protruding column 122. The protruding column 122 is disposed on the first bottom plate 121. The first magnetic member 12 is a washer. Further, the protruding column 122 is disposed on the first bottom plate 121. Middle part. The first bottom plate 121 of the first magnetic element 12 is disposed at the first end 111 of the magnet 11, and the protrusion 122 penetrates through the through hole 110. A first annular space is formed between the magnet 11 and the protrusion 122 of the first magnetic element 12 113. The second voice coil 16 is located in the first annular space 113, and the second vibrating member 17 is connected to the second voice coil 16. The structure of the magnet 11, the first magnetic member 12, the second voice coil 16 and the second vibrating member 17 constitute an internal magnetic speaker assembly.

Furthermore, the second magnetic member 13 has a second bottom plate 131 and a side wall 132. The side wall 132 is arranged around the second bottom plate 131. The second magnetic member 13 is a yoke. The second bottom plate 131 of the second magnetic member 13 is disposed on the second end 112 of the magnet 11, and the periphery of the second bottom plate 131 extends to the outside of the magnet 11, and the side wall 132 surrounds the magnet 11. A second annular space 114 is formed between the magnet 11 and the second magnetic member 13, the first voice coil 14 is located in the second annular space 114, and the first vibrating member 15 is connected to the first voice coil 14. The structure of the magnet 11, the second magnetic member 13, the first voice coil 14 and the first vibrating member 15 constitute an external magnetic speaker assembly.

As mentioned above, the center of the magnet 11 has a through hole 110, the second bottom plate 131 has a bottom hole 1310, the second bottom plate 131 is disposed at the second end 112 of the magnet 11, and the bottom hole 1310 communicates with the through hole 110, in other words, the second voice coil 16 When the second end 112 of the magnet 11 is placed in the first annular space 113, the second voice coil 16 needs to pass through the bottom hole 1310 of the second bottom plate 131 and be placed in the through hole 110 of the magnet 11.

In this embodiment, the first vibrating member 15 and the second vibrating member 17 are the vibrator 181 or/and the diaphragm 182, wherein the first vibrating member 15 and the second vibrating member 17 can be selected according to the needs of the user. /And the use of the diaphragm 182 does not limit the above structure. The vibrator 181 is generally used for the mechanical vibration conduction of bone conduction earphones, and the material of the vibrator 181 includes metal, metal alloy or vibrator materials generally used for bone conduction earphones. The diaphragm 182 is usually used for the sound wave transmission of the vibrating air of general headphones. The material of the diaphragm 182 includes polyethylene terephthalate, polypropylene, foam, polyethylene naphthalate, titanium metal composite material, and carbon. Nanocomposite materials, silicone rubber or diaphragm materials commonly used in headphones.

In addition, the speaker structure 1 further includes a housing 20. The magnet 11, the first magnetic member 12, and the second magnetic member 13 are fixed in the housing 20, the first vibrating member 15 is disposed at one end of the housing 20, and the first voice coil 14 Located in the housing 20. The second vibrating member 17 is disposed at the other end of the housing 20, and the second voice coil 16 is located in the housing 20. The housing 20 further includes a first housing 21 and a second housing 22. The first housing 21 has a first support 211 and the second housing 22 has a second support 221. The first housing 21 and the second housing 22 are assembled to form the housing 20. The first bracket 211 and the second bracket 221 fix the second magnetic member 13 and at the same time fix the magnet 11 and the first magnetic member 12 together. The first vibrating element 15 is fixed to the first housing 21, and the second vibrating element 17 is fixed to the second housing 22. In addition, the loudspeaker structure 1 further includes a buffer 19 which covers the outer side of the vibrator 181, and the buffer 19 can buffer the vibrating force of the vibrator 181.

In the first embodiment, the first vibrating member 15 is a vibrator 181, and the vibrator 181 converts sound into mechanical vibration transmission of different frequencies. Electric current passes through the first voice coil 14 to generate a magnetic field, and the magnetic field of the first voice coil 14 interacts with the magnetic field of the magnet 11. Wherein, the second magnetic member 13 will guide the magnetic field lines of the magnet 11 to concentrate in the first annular space 113, that is, increase the magnetic flux between the magnet 11 and the second magnetic member 13, so as to strengthen the magnetic field for the first voice coil 14. The effect of the action. The first voice coil 14 then drives the vibrator 181 to generate mechanical vibration, and the vibrator 181 is transmitted to the auditory ossicles through the vibration of the human skull, and then transmitted to the auditory nerve through the cochlea via the auditory ossicles.

Furthermore, the second vibrating element 17 is a diaphragm 182, which converts sound into sound waves of different frequencies for transmission. The current passing through the second voice coil 16 generates a magnetic field, and the magnetic field of the second voice coil 16 interacts with the magnetic field of the magnet 11. Among them, the first magnetic member 12 will guide the magnetic field lines of the magnet 11 to concentrate in the second annular space 114, that is, increase the magnetic flux between the magnet 11 and the first magnetic member 12, which can strengthen the magnetic field effect on the second voice coil 16. Effect. The second voice coil 16 then drives the diaphragm 182 to vibrate, thereby producing sound. The sound of the speaker structure 1 enters the external auditory canal, the tympanic membrane and the auditory ossicles through air conduction, and then is transmitted to the auditory nerve through the cochlea via the auditory ossicles.

In the first embodiment, by integrating two sets of internal and external magnetic speakers, the first voice coil 14 and the first vibrating member 15 and the second voice coil 16 and the second vibrating member 17 are shared The same central magnet 11 forms a double vibration sounding structure. The inner magnetic circuit system formed by the magnet 11 and the first magnetic member 12 and the outer magnetic circuit system formed by the magnet 11 and the second magnetic member 13 do not interfere with each other. The first vibrating member 15 is a vibrator 181, and the vibrator 181 transmits sound by mechanically vibrating the skull. The second vibrating member 17 is a vibrating membrane 182, and the vibrating membrane 182 generates sound waves by vibrating air to transmit sound. The two sets of speakers form a speaker structure with complementary sound quality.

Please refer to FIG. 4, which is a cross-sectional view of the speaker structure of the second embodiment of the present application. As shown in the figure, the difference between the second embodiment and the first embodiment lies in the structure of the second vibrating member 17. In the second embodiment, the second vibrating member 17 is a vibrator 181, wherein the vibrator 181 is connected to the second voice coil 16, and the second voice coil 16 drives the vibrator 181 to vibrate, and the vibrator 181 transmits sound through a mechanically vibrating skull.

Please refer to FIG. 5, which is a cross-sectional view of the speaker structure of the third embodiment of the present application. As shown in the figure, the difference between the third embodiment and the first embodiment lies in the structure of the first vibrating member 15. In the third embodiment, the first vibrating element 15 is a diaphragm 182, wherein the diaphragm 182 is connected to the first voice coil 14. The first voice coil drives the diaphragm 182 to vibrate, and the diaphragm 182 vibrates the air to generate sound waves and transmit sound. .

Please refer to FIG. 6, which is a cross-sectional view of the speaker structure of the fourth embodiment of the present application. As shown in the figure, the difference between the fourth embodiment and the first embodiment lies in the structure of the first vibrating member 15 and the second vibrating member 17. In the fourth embodiment, the first vibrating member 15 is a diaphragm 182, and the second vibrating member 17 is a vibrator 181. The vibrator 181 is connected to the second voice coil 16, and the second voice coil 16 drives the vibrator 181 to vibrate mechanically. The skull transmits sound. The diaphragm 182 is connected to the first voice coil 14, and the first voice coil 14 drives the diaphragm 182 to vibrate the air to generate sound waves to transmit sound.

In summary, the present application provides a speaker structure, which integrates two sets of internal magnetic and external magnetic speakers, the first voice coil and the first vibrating member, and the second voice coil and the second vibrating member are shared The same central magnet forms a double-vibration sounding structure, which increases the effective vibration quality, enhances the sound field radiation effect, and improves the frequency response. Among them, the first vibrating part and the second vibrating part can choose a vibrator or/and a vibrating diaphragm, the vibrator transmits sound through the mechanical vibrating skull, and the vibrating diaphragm generates sound waves through vibrating air to transmit sound. The two sets of speakers form a speaker structure with complementary sound quality. This can increase the thickness of the sound and make up for the lack of sound quality.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.

The embodiments of the application are described above with reference to the accompanying drawings, but the application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can be made, all of which fall within the protection of this application.

1: speaker structure 11: Magnet 110: Piercing 111: first end 112: second end 113: The First Annular Space 114: second annular space 12: The first magnetic part 121: first floor 122: convex column 13: The second magnetic part 131: second bottom plate 1310: bottom hole 132: Sidewall 14: The first voice coil 15: The first vibrating part 16: second voice coil 17: The second vibrating part 181: Vibrator 182: Diaphragm 19: Buffer 20: shell 21: The first shell 211: The first bracket 22: second shell 221: second bracket

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture: FIG. 1 is a perspective view of the speaker structure of the first embodiment of the present application; Fig. 2 is a perspective cross-sectional view taken along the line A-A' of Fig. 1; 3 is a cross-sectional view of the speaker structure of the first embodiment of the present application; 4 is a cross-sectional view of the speaker structure of the second embodiment of the present application; 5 is a cross-sectional view of the speaker structure of the third embodiment of the present application; and Fig. 6 is a cross-sectional view of the speaker structure of the fourth embodiment of the present application.

11: Magnet

110: Piercing

111: first end

112: second end

113: The First Annular Space

114: second annular space

12: The first magnetic part

121: first floor

122: convex column

13: The second magnetic part

131: second bottom plate

1310: bottom hole

132: Sidewall

14: The first voice coil

15: The first vibrating part

16: second voice coil

17: The second vibrating part

181: Vibrator

182: Diaphragm

19: Buffer

20: shell

21: The first shell

211: The first bracket

22: second shell

221: second bracket

Claims (10)

A speaker structure, including: A magnet having a first end and a second end opposite to the first end; A first magnetic member, which is arranged on the first end of the magnet, and the first magnetic member is located inside the magnet; A second magnetic member, which is disposed at the second end of the magnet, and the second magnetic member is located outside the magnet; A first voice coil located at the first end, the first voice coil located between the magnet and the second magnetic member; A first vibrating member connected to the first voice coil; A second voice coil located at the second end, the second voice coil located between the magnet and the first magnetic member; and A second vibrating member connected to the second voice coil. The speaker structure according to claim 1, wherein the magnet has a through hole, the first magnetic member has a first bottom plate and a protruding column, the protruding column is disposed on the first bottom plate, and the first bottom plate is disposed on the magnet At the first end of the, the convex column penetrates the through hole, a first annular space is formed between the magnet and the convex column, and the second voice coil is located in the first annular space. The speaker structure according to claim 1, wherein the second magnetic member has a second bottom plate and a side wall, the side wall is disposed around the second bottom plate, and the second bottom plate is disposed at the second end of the magnet , The periphery of the second base plate extends to the outside of the magnet, the side wall surrounds the magnet, a second annular space is formed between the magnet and the second magnetic member, and the first voice coil is located in the second annular space Inside. The speaker structure according to claim 3, wherein the magnet has a through hole, the second bottom plate has a bottom hole, the bottom hole communicates with the through hole, and the second voice coil passes through the bottom hole and is placed on the magnet. Inside the perforation. The speaker structure according to claim 1, wherein the first vibrating member and the second vibrating member are a diaphragm or/and a vibrator. The speaker structure according to claim 5, wherein the material of the diaphragm includes polyethylene terephthalate, polypropylene, foam, polyethylene naphthalate, titanium metal composite material, carbon nanocomposite Material or silicone. The speaker structure according to claim 5, wherein the material of the vibrator includes metal or metal alloy. The loudspeaker structure according to claim 5, which further includes a buffer member, and the buffer member covers the outside of the vibrator. The speaker structure according to claim 1, which further includes a housing, the magnet, the first magnetic member, and the second magnetic member are fixed in the housing, and the first vibrating member is disposed at one end of the housing, The second vibrating element is arranged at the other end of the shell. The speaker structure according to claim 9, wherein the housing further includes a first housing and a second housing, the first housing has a first support, the second housing has a second support, and the first housing A shell and the second shell are assembled to form the shell, the first bracket and the second bracket fix the second magnetic member, the first vibrating member is fixed to the first casing, and the second vibrating member is fixed to the The second housing.

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