CN106331962B

CN106331962B - Loudspeaker

Info

Publication number: CN106331962B
Application number: CN201610870898.7A
Authority: CN
Inventors: 黄维财
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2016-09-30
Filing date: 2016-09-30
Publication date: 2021-01-29
Anticipated expiration: 2036-09-30
Also published as: CN106331962A

Abstract

The embodiment of the application discloses a loudspeaker, under the condition that has set up two vibrating diaphragms, further divide the speaker inside into a plurality of cavitys through separating the skeleton to make a plurality of cavitys be linked together through going out the phonate hole and speaker exterior space respectively, thereby, outside making each vibrating diaphragm can both conduct the speaker in the produced sound wave of equidirectional not, under the condition that does not increase speaker thickness, improve the output sound pressure level that the speaker radiated.

Description

Loudspeaker

Technical Field

The present application relates to the field of acoustics, and in particular, to a speaker.

Background

A loudspeaker is a unit of loudspeaker, also called a loudspeaker. Is an electroacoustic transducer, and is common in the field of electroacoustic. Loudspeakers are a relatively weak but important component in electro-acoustic systems.

Fig. 1 is a schematic diagram of a conventional speaker. Install vibrating diaphragm 2 on speaker frame 1, vibrating diaphragm 2 is connected with voice coil loudspeaker voice coil skeleton 5. Voice coil 6 is wound around voice coil bobbin 5, and voice coil 6 is located in the magnetic gap formed by magnet 7 and U-iron 8. When an alternating current carrying a sound signal passes through the voice coil 6, the voice coil 6 serving as an energized coil is subjected to an electromagnetic force by cutting magnetic lines in the magnetic gap, thereby pushing the diaphragm 2 to vibrate to make a sound. When vibrating diaphragm 2 vibrates, in order to let vibrating diaphragm 2 only at the motion of axis direction up-and-down motion and disappearance skew axis, designed on voice coil skeleton 5 and played the effect that the centering supported to voice coil skeleton 5 and played an elastic wave structure 11. The electromagnetic force applied to the voice coil 6 drives the diaphragm 2 to vibrate together with the damper 11, and the diaphragm 2 vibrates to radiate sound outwards, which is the sound radiated by the loudspeaker.

The applicant finds in the course of implementing the present application that the above-mentioned prior art treatment solutions have at least the following problems:

with the wide application of electronic devices such as televisions, thinning is an industry trend, and accordingly, the thickness thinning of a loudspeaker is required for the thin overall design of the thin loudspeaker. However, according to the conventional speaker structure scheme, the output sound pressure level of the speaker is limited by the corresponding thinning design, so how to increase the output sound pressure level of the speaker while ensuring the thinning design becomes a problem to be solved urgently in the field of speaker design.

Disclosure of Invention

The embodiment of the application provides a loudspeaker, so that the output sound pressure level of the loudspeaker is improved under the condition that the thickness of the loudspeaker is not increased.

In order to achieve the technical purpose, the application provides a loudspeaker, including basin frame (1) and respectively the holding be in first vibrating diaphragm (2), separation skeleton (3), second vibrating diaphragm (4), voice coil loudspeaker voice coil skeleton (5), voice coil loudspeaker voice coil (6), magnet (7), magnetizer (8) within basin frame (1), wherein:

the top of the basin frame (1) is connected with the first vibrating diaphragm (2), the bottom of the basin frame (1) is connected with the magnetizer (8), and the top and the bottom are respectively provided with a sound outlet (9);

the upper edge of the separation framework (3) is connected with the edge of the first vibrating diaphragm (2), the second vibrating diaphragm (4) is of a circular ring structure, the other end of the separation framework (3) is connected with the inner side edge of the second vibrating diaphragm (4), and the outer side edge of the second vibrating diaphragm (4) is connected with the basin frame (1);

voice coil loudspeaker voice coil skeleton (5) are located separate the inside of skeleton (3), the last edge of voice coil loudspeaker voice coil skeleton (5) with first vibrating diaphragm (2) are connected, and voice coil loudspeaker voice coil (6) is connected to the other end, voice coil loudspeaker voice coil (6) are located between magnet (7) and magnetizer (8).

Preferably, the top of the basin stand (1) is connected with the first diaphragm (2), specifically:

the upper edge of the basin frame (1) is bent inwards to form an inwards-folded part;

the inward folding part is connected with the edge of the first vibrating diaphragm (2) through a folding ring.

Preferably, the top and the bottom are respectively provided with a sound outlet (9), specifically:

one or more sound outlet holes (9) are formed in the inward folding portion, and one or more sound outlet holes (9) are formed in the bottom portion.

Preferably, the bottom of the basin frame (1) is connected with the magnetizer (8), and the method specifically comprises the following steps:

the bottom edge of the basin frame (1) is abutted against the outer side surface of the magnetizer (8);

or the like, or, alternatively,

the upper surface of the bottom of the basin frame (1) is connected with the bottom of the magnetizer (8).

Preferably, the other end of the separation framework (3) is connected with the inner side edge of the second diaphragm (4), specifically:

the lower edge of the separation framework (3) is connected with the inner side edge of the second diaphragm (4);

or the like, or, alternatively,

the middle part of the separation framework (3) is connected with the inner side edge of the second vibrating diaphragm (4);

wherein, there is the interval between the bottom of separating the lower edge of skeleton (3) and basin frame (1), separate the interval between the internal surface of skeleton (3) and the surface of magnetizer (8).

Preferably, the outer edge of the second diaphragm (4) is connected to the frame (1), specifically:

the outer edge of the second vibrating diaphragm (4) is connected with the inner surface of the basin frame (1) through a folding ring.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the beneficial technical effects that:

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a loudspeaker in the prior art;

fig. 2 is a schematic structural diagram of a speaker according to an embodiment of the present application;

wherein, 21 is a basin frame, 22 is a first vibrating diaphragm, 23 is a separation framework, 24 is a second vibrating diaphragm, 25 is a voice coil framework, 26 is a voice coil, 27 is a magnet, 28 is a magnetizer, and 29 is a sound outlet;

fig. 3 is a schematic structural diagram of another speaker according to an embodiment of the present application;

wherein 31 is a basin frame, 32 is a first vibrating diaphragm, 33 is a separation framework, 34 is a second vibrating diaphragm, 35 is a voice coil framework, 36 is a voice coil, 37 is a magnet, 38 is a magnetizer, and 39 is a sound outlet;

fig. 4 is a schematic top view of an external appearance of a speaker according to an embodiment of the present application;

fig. 5 is a schematic bottom view of an external appearance of a speaker according to an embodiment of the present application.

Detailed Description

As stated in the background of the present application, under the trend of thinning the existing overall design, how to increase the output sound pressure level of the speaker while ensuring the thinned design becomes a problem to be solved in the field of speaker design.

It should be further noted that, in the existing speaker design, the vibration of the elastic wave 11 also radiates sound, but the currently used elastic wave structure is not suitable for radiating sound, and the elastic wave is generally located in the rear cavity where the speaker is installed, and the radiated sound cannot reach the front of the speaker and cannot be utilized, which causes waste.

The inventor of this application hopes through the speaker design that this application provided, replaces the bullet ripples through the vibrating diaphragm to increase the phonate hole, under the prerequisite that keeps the slim design of speaker, increase the output sound pressure level of speaker, thereby, under the condition that does not increase the thickness demand for the complete machine design, improve the sound pressure level output performance of speaker, improve user experience.

As shown in fig. 2, a schematic structural diagram of a speaker provided in the embodiment of the present application is shown, where the speaker specifically includes:

basin frame 21 and first vibrating diaphragm 22, separation skeleton 23, second vibrating diaphragm 24, voice coil loudspeaker voice coil skeleton 25, voice coil loudspeaker voice coil 26, magnet 27 and magnetizer 28 that hold respectively in within the basin frame 21, wherein:

the top of the basin frame 21 is connected with the first vibrating diaphragm 22, the bottom of the basin frame 21 is connected with the magnetizer 28, and the top and the bottom are respectively provided with a sound outlet 29. The upper edge of the separation framework 23 is connected with the edge of the first vibrating diaphragm 22, the second vibrating diaphragm 24 is of a circular ring structure, the other end of the separation framework 23 is connected with the inner side edge of the second vibrating diaphragm 24, and the outer side edge of the second vibrating diaphragm 24 is connected with the basin frame 21. Voice coil skeleton 25 is located separate the inside of skeleton 23, the last edge of voice coil skeleton 25 with first vibrating diaphragm 22 is connected, and voice coil 26 is connected to the other end, voice coil 26 is located between magnet 27 and the magnetizer 28.

In a specific application scenario, the manner of connecting the top of the basin stand 21 and the first diaphragm 22 is specifically as follows:

the upper edge of the frame 21 is bent inward to form an inward-folded part, and the inward-folded part is connected with the edge of the first diaphragm 22 through a folded ring. It should be noted that the inward-folding portion may be implemented by integrally bending the upper edge of the frame 21 inward, the inward-folding portion in this case is an annular platform located at the top of the frame, or may be a sheet structure that is partially bent inward along the upper edge, that is, a plurality of inward-bending sheets are formed, and of course, in order to connect with the first diaphragm 22, one end of the sheet structure may be further connected with a ring, so that the ring is connected with the edge of the first diaphragm 22.

Based on different internal folding part structures, the specific form of the sound outlet 29 arranged at the top, that is, the specific form of one or more sound outlets 29 arranged on the internal folding part, includes that if the internal folding part is integrally bent, holes can be formed on the annular platform to form one or more sound outlets 29, and if the internal folding part is an inwardly bent sheet-shaped structure, the gap between the sheet-shaped structures can be directly used as the sound outlet 29.

In a specific application scenario, the connection between the bottom of the basin stand 21 and the magnetizer 28 includes two ways, one is that the edge of the bottom of the basin stand 21 abuts against the outer surface of the magnetizer 28, that is, the bottom of the magnetizer 28 is located outside the basin stand, and the other is that the upper surface of the bottom of the basin stand 21 is connected with the bottom of the magnetizer 28, that is, the bottom of the magnetizer 28 is located inside the basin stand. The bottom of the frame 21 is also provided with one or more sound outlet holes 29.

In a specific application scenario, there are two ways of connecting the other end of the separation frame 23 and the inner side edge of the second diaphragm 24, one is to connect the lower edge of the separation frame 23 and the inner side edge of the second diaphragm 24, and the other is to connect the middle of the separation frame 23 and the inner side edge of the second diaphragm 24. Either way, it is required that a space exists between the lower edge of the partition frame 23 and the bottom of the frame 21, and a space exists between the inner surface of the partition frame 23 and the outer surface of the magnetizer 28. Such a structure is required to make the cavity structure formed between the partition frame 23 and the voice coil frame 25 communicate with the outside through the sound outlet hole at the bottom of the frame 21.

Further, the outer edge of the second diaphragm 24 is connected to the frame 21, specifically, the outer edge of the second diaphragm 24 is connected to the inner surface of the frame 21 through a corrugated rim.

The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are some, not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As described above, according to the difference in the arrangement manner of the partition frameworks, the embodiments of the present application respectively provide corresponding schematic structural diagrams through fig. 2 and fig. 3.

As shown in fig. 2, the middle of the separation frame 23 is connected to the second diaphragm 24, and the lower edge of the separation frame 23 is lower than the upper edge of the magnetizer 28, so that the inside of the speaker is divided into A, B, C cavities as shown in the figure, wherein the cavity a is communicated with the cavity C. When voice coil 26 moves up and down, voice coil framework 25 drives first diaphragm 22 to vibrate, so as to generate sound waves, the vibration of first diaphragm 22 is transmitted to second diaphragm 24 through separation framework 23, and second diaphragm 24 generates sound waves through vibration.

The sound waves are radiated from both surfaces of the first diaphragm 22 and the second diaphragm 24, wherein the sound waves radiated forward (generated from the upper surface of the drawing) by the first diaphragm 22 are directly transmitted forward, the sound waves radiated backward (generated from the lower surface of the drawing) enter the cavity a, and then pass through the cavity C and are transmitted to the rear of the speaker through the sound outlet 29 formed in the bottom of the frame 21, the sound waves radiated forward (generated from the upper surface of the drawing) by the second diaphragm 24 enter the cavity B and are transmitted to the front of the speaker through the sound outlet 29 formed in the top of the frame 21, and the sound waves radiated backward (generated from the lower surface of the drawing) by the second diaphragm 24 enter the cavity C and are transmitted to the rear of the speaker through the sound outlet 29 formed in the bottom of the frame 21.

Through the sound wave transmission process, the sound wave radiated forward by the first vibrating diaphragm 22 is superposed with the sound wave radiated forward by the second vibrating diaphragm 24 transmitted from the top sound outlet 29, so that the output sound pressure level in front of the loudspeaker is improved, on the other hand, the sound wave radiated backward by the first vibrating diaphragm 22 is superposed with the sound wave radiated backward by the second vibrating diaphragm 24 in the cavity C, and is output from the bottom sound outlet 29 to the rear of the loudspeaker, so that the output sound pressure level in rear of the loudspeaker is improved.

As shown in fig. 3, the lower edge of the separation frame 33 is connected to the second diaphragm 34, and the lower edge of the separation frame 33 is higher than the upper edge of the magnetizer 38, so that the inside of the speaker is divided into A, B two cavities as shown in the figure. When the voice coil 36 moves up and down, the voice coil bobbin 35 drives the first diaphragm 32 to vibrate, so as to generate sound waves, the vibration of the first diaphragm 32 is transmitted to the second diaphragm 34 through the separation bobbin 33, and the second diaphragm 34 generates sound waves through vibration.

Both surfaces of the first diaphragm 32 and the second diaphragm 34 radiate sound waves, wherein the sound waves radiated forward (generated by the upper surface of the figure) by the first diaphragm 32 are directly transmitted forward, the sound waves radiated backward (generated by the lower surface of the figure) enter the cavity a and are transmitted to the rear of the speaker through the sound outlet 39 formed in the bottom of the frame 31, the sound waves radiated forward (generated by the upper surface of the figure) by the second diaphragm 34 enter the cavity B and are transmitted to the front of the speaker through the sound outlet 39 formed in the top of the frame 31, and the sound waves radiated backward (generated by the lower surface of the figure) by the second diaphragm 34 enter the cavity a and are transmitted to the rear of the speaker through the sound outlet 39 formed in the bottom of the frame 21.

Through the sound wave transmission process, the sound wave radiated forward by the first diaphragm 32 is overlapped with the sound wave radiated forward by the second diaphragm 34 transmitted from the top sound outlet 39, so that the output sound pressure level in front of the loudspeaker is improved, on the other hand, the sound wave radiated backward by the first diaphragm 32 is overlapped with the sound wave radiated backward by the second diaphragm 34 in the cavity a, and is output from the bottom sound outlet 39 to the rear of the loudspeaker, so that the output sound pressure level in rear of the loudspeaker is improved.

Fig. 4 and fig. 5 are schematic top and bottom views of an external appearance of a speaker according to an embodiment of the present invention, respectively, so as to more clearly and conveniently understand the technical solution according to the embodiment of the present invention.

Fig. 2 and fig. 3 are only preferred embodiments given in this application, and according to the foregoing description, the connection manner of the bottom of the frame and the magnetizer, and the connection manner of the diaphragm and the frame may be adjusted according to the needs of an actual scene, and such changes are not listed, and such a scheme that a multi-cavity is formed based on the dual diaphragms and the separation frameworks to realize sound wave superposition all belongs to the protection scope of this application.

Through the above description of the embodiments, it is clear to those skilled in the art that the embodiments of the present invention may be implemented by hardware, or by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the embodiment of the present invention may be embodied in the form of a software product, where the software product may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network-side device, etc.) to execute the method described in each embodiment of the present invention.

Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to implement embodiments of the present invention.

Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.

The sequence numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the implementation scenarios.

The above disclosure is only a few specific implementation scenarios of the embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be considered by those skilled in the art should fall within the scope of the business limitations of the embodiments of the present invention.

Claims

1. The utility model provides a loudspeaker, its characterized in that includes basin frame (1) and holds respectively first vibrating diaphragm (2), separation skeleton (3), second vibrating diaphragm (4), voice coil loudspeaker voice coil skeleton (5), voice coil loudspeaker voice coil (6), magnet (7), magnetizer (8) within basin frame (1), wherein:

2. A loudspeaker according to claim 1, wherein the top of the frame (1) is connected to the first diaphragm (2), in particular:

3. A loudspeaker according to claim 2, wherein the top and the bottom are provided with sound outlet holes (9) respectively, in particular:

4. A loudspeaker according to claim 1, characterized in that the bottom of the frame (1) is connected to the magnetizer (8), in particular:

or the like, or, alternatively,

5. A loudspeaker according to claim 1, wherein the other end of the separation frame (3) is connected to the inner edge of the second diaphragm (4), in particular:

or the like, or, alternatively,

6. A loudspeaker as claimed in claim 1, wherein the outer edge of the second diaphragm (4) is connected to the frame (1), in particular: