CN112261558B - Loudspeaker - Google Patents

Loudspeaker Download PDF

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Publication number
CN112261558B
CN112261558B CN202011145126.XA CN202011145126A CN112261558B CN 112261558 B CN112261558 B CN 112261558B CN 202011145126 A CN202011145126 A CN 202011145126A CN 112261558 B CN112261558 B CN 112261558B
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China
Prior art keywords
voice coil
vibrating diaphragm
coil framework
sound
loudspeaker
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CN202011145126.XA
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CN112261558A (en
Inventor
黄维财
王鑫
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Chengdu Jimi Technology Co Ltd
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Chengdu Jimi Technology Co Ltd
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Priority to CN202011145126.XA priority Critical patent/CN112261558B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups

Abstract

The invention discloses a loudspeaker, which belongs to the technical field of sound boxes and comprises a vibrating diaphragm, a first corrugated ring, a voice coil framework, an elastic wave and a basin frame; the vibrating diaphragm is connected with an annular surface part arranged on the inner edge of the top of the basin stand through a first folding ring arranged on the outer edge of the vibrating diaphragm; the annular surface part is provided with a sound outlet; the vibrating diaphragm, the first folding ring, the voice coil framework, the elastic wave and the basin frame enclose a closed space with only the sound outlet as an outlet. The loudspeaker can increase the output sound pressure level under the condition that the size, the thickness and the magnetic circuit of the loudspeaker diaphragm are not changed in a projection product with a compact structure, improve the utilization rate of vibration energy, efficiently perform energy-rising conversion and improve the performance of the loudspeaker.

Description

Loudspeaker
Technical Field
The invention belongs to the technical field of sound boxes, and particularly relates to a loudspeaker.
Background
Loudspeakers are a common sound-producing component in electronic products, and sound-producing loudspeakers are also found in projection products. Due to the small size and power of the projected product, there are often situations where the maximum sound pressure level output is not large enough. In order to increase the output sound pressure level, it is conventional to increase the number of speaker units, increase the size of the magnetic circuit, or increase the rated power of the speaker, which increases the design cost, increases the occupied space, and is difficult to implement in compact projection products. The technical problem to be solved at present is to increase the output sound pressure level under the condition that the size of a diaphragm, the thickness and the size of a magnetic circuit of a loudspeaker are not changed.
Disclosure of Invention
The invention aims to provide a loudspeaker aiming at the defects, and aims to solve the problems of increasing the output sound pressure level and the like under the condition that the size of a vibrating diaphragm, the thickness and the size of a magnetic circuit of the loudspeaker are not changed. In order to achieve the purpose, the invention provides the following technical scheme:
a loudspeaker comprises a vibrating diaphragm 1, a first corrugated rim 2, a voice coil framework 3, an elastic wave 4 and a basin frame 5; the vibrating diaphragm 1 is connected with an annular surface part 6 arranged on the inner edge of the top of the basin stand 5 through a first folding ring 2 arranged on the outer edge of the vibrating diaphragm 1; the annular surface part 6 is provided with a sound outlet 7; the vibrating diaphragm 1, the first corrugated rim 2, the voice coil framework 3, the elastic wave 4 and the basin frame 5 enclose a closed space with only the sound outlet 7 as an outlet. According to the structure, the damper and voice coil framework structures of the traditional common moving coil loudspeaker are designed and optimized, and the internal structure of the loudspeaker unit is redesigned, so that vibration energy which is not utilized in the original design is utilized, and the energy utilization efficiency of the loudspeaker is increased, so that the purpose of increasing the output sound pressure level is achieved. A circle of first folding ring 2 is arranged at the outer edge of the vibrating diaphragm 1, and the first folding ring 2 is used as a first elastic support of the vibrating diaphragm 1 in the axis direction; the first folding ring 2 is adhered to an annular surface part 6 arranged on the inner edge of the top of a metal basin frame 5, the annular surface part 6 can be integrally formed with the basin frame 5, the vibrating diaphragm 1, the first folding ring 2, the voice coil framework 3, the elastic wave 4 and the basin frame 5 enclose a closed space, and the only outlet of the closed space is a sound outlet 7, so that the voice coil framework 3 is driven to vibrate by the stress of a coil of the voice coil framework 3 in a magnetic field, and the vibrating diaphragm is pushed to vibrate; in order to ensure that the voice coil framework vibrates along the axis direction all the time, other parts are not touched in the vibration process, so that the vibrating diaphragm and the voice coil framework need to be supported for the second time in the axis direction, namely, the elastic wave is connected with one section of the voice coil framework, and the other section of the elastic wave is fixed on the metal basin frame. The diaphragm simultaneously radiates sound forward and backward during vibration, and the forward radiated sound is radiated to the outside of the speaker, i.e., sound audible to a user. The elastic wave serving as the second supporting structure continuously vibrates and radiates sound in the working process of the loudspeaker, and the sound radiated by the elastic wave can effectively reach the outside of the loudspeaker through the sound outlet 7 arranged on the annular surface part 6 and is superposed with the rising energy radiated by the vibrating diaphragm, so that the purpose of increasing the sound pressure level output by the loudspeaker box is achieved. The invention enables the elastic wave structure to play a role in centering and supporting, and can also efficiently convert the rising energy, thereby avoiding the waste of the elastic wave vibration energy.
Further, the lower surface of the vibrating diaphragm 1 is connected with a voice coil framework 3; a basin frame 5 is arranged at the periphery of the voice coil framework 3; the elastic wave 4 is connected with the voice coil framework 3 and the basin frame 5; and a second folding ring 8 is arranged at the joint edge of the elastic wave 4 and the basin frame 5. According to the structure, the original elastic wave structure mainly plays a role in centering and supporting, so that the structural form is not beneficial to sound radiation, the elastic wave is designed into a vibrating diaphragm and folding ring form, the elastic wave 4 is connected with the basin frame 5 through the second folding ring 8, and the elastic wave 4 also becomes a vibrating diaphragm with an internal high-efficiency sound production; the novel structure of the vibrating diaphragm and the folding ring realizes the function of sound radiation and the function of centering support. According to the invention, through the structure optimization design, the vibration energy of the elastic wave is effectively utilized to increase the sound radiation so as to achieve the purpose of increasing the output sound pressure level.
Further, the device also comprises a shell 9; the basin stand 5 is fixed with the shell 9, and the basin stand 5 sinks into the inner space of the shell 9; the voice coil framework 3 is provided with a pressure equalizing hole 10; the pressure equalizing hole 10 enables the inner space of the shell 9 to be communicated with the inner space of the voice coil framework 3; the space below the damper 4 is communicated with the inner space of the shell 9. According to the structure, the sound energy radiated by the elastic wave 4 is radiated to the outside of the loudspeaker through the sound outlet 7 arranged on the annular surface part 6 and is superposed with the sound energy radiated by the vibrating diaphragm to the outside of the loudspeaker, so that the purpose of increasing the output sound pressure level of the loudspeaker box is achieved. Since the rearward radiated sound is 180 degrees out of phase with the forward radiated sound, it is necessary to enclose the rearward radiated sound with the case 9 in order to prevent sound attenuation caused by acoustic short-circuiting. The pressure equalizing hole 10 enables the inner space of the shell 9 to be communicated with the inner space of the voice coil framework 3; the space below the damper 4 is communicated with the inner space of the shell 9. Inside the sound of bullet ripples 4 and vibrating diaphragm back radiation entered into the speaker like this, accomplished 4 and the separation of vibrating diaphragm front and back radiation acoustic energy of bullet ripples, effectively avoided the acoustic short circuit, realized the normal work of speaker.
Further, the upper section of the voice coil framework 3 is a curved surface with a gradually increasing caliber, so that the lower surface of the diaphragm 1 is completely wrapped in the inner space of the voice coil framework 3. By the structure, the lower surface of the vibrating diaphragm 1 is completely wrapped in the inner space of the voice coil framework 3, and the sound production efficiency of the vibrating diaphragm 1 is improved. The invention realizes the normal work of the loudspeaker, increases the radiation sound energy of the loudspeaker, and achieves the design aim of increasing the output sound pressure level under the condition that the thickness size of the vibrating diaphragm and the size of the magnetic circuit are not changed.
Furthermore, the sound outlet 7 is a plurality of strip-shaped through holes or round holes on the annular surface part 6. According to the structure, the elastic waves 4 are enabled to fully radiate sound energy forwards through the strip-shaped through holes or the round holes.
Further, the magnetic conduction device also comprises a magnetic conduction bowl 11 and a magnet 12; the magnetic conducting bowl 11 surrounds the magnet 12, and a magnetic gap is arranged between the magnetic conducting bowl 11 and the magnet 12; and the coil section of the voice coil framework 3 extends into the magnetic gap. According to the structure, the coil of the voice coil framework 3 is stressed in the magnetic field formed by the magnetic conduction bowl 11 and the magnet 12 to drive the voice coil framework 3 to vibrate, so that the vibrating diaphragm is pushed to vibrate.
Further, the lower end of the basin frame 5 is connected with a magnetic conduction bowl 11.
The invention has the beneficial effects that:
the invention discloses a loudspeaker, which belongs to the technical field of sound boxes and comprises a vibrating diaphragm, a first corrugated ring, a voice coil framework, an elastic wave and a basin frame; the vibrating diaphragm is connected with an annular surface part arranged on the inner edge of the top of the basin stand through a first folding ring arranged on the outer edge of the vibrating diaphragm; the annular surface part is provided with a sound outlet; the vibrating diaphragm, the first folding ring, the voice coil framework, the elastic wave and the basin frame enclose a closed space with only the sound outlet as an outlet. The loudspeaker can increase the output sound pressure level under the condition that the size, the thickness and the magnetic circuit of the loudspeaker diaphragm are not changed in a projection product with a compact structure, improve the utilization rate of vibration energy, efficiently perform energy-rising conversion and improve the performance of the loudspeaker.
Drawings
FIG. 1 is a schematic cross-sectional view of a loudspeaker according to the present invention;
in the drawings: 1-vibrating diaphragm, 2-first folding ring, 3-voice coil framework, 4-elastic wave, 5-basin frame, 6-annular surface part, 7-sound outlet, 8-second folding ring, 9-shell, 10-pressure equalizing hole, 11-magnetic conduction bowl and 12-magnet.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and the embodiments, but the present invention is not limited to the following examples.
The first embodiment is as follows:
see figure 1. A loudspeaker comprises a vibrating diaphragm 1, a first corrugated rim 2, a voice coil framework 3, an elastic wave 4 and a basin frame 5; the vibrating diaphragm 1 is connected with an annular surface part 6 arranged on the inner edge of the top of the basin stand 5 through a first folding ring 2 arranged on the outer edge of the vibrating diaphragm 1; the annular surface part 6 is provided with a sound outlet 7; the vibrating diaphragm 1, the first corrugated rim 2, the voice coil framework 3, the elastic wave 4 and the basin frame 5 enclose a closed space with only the sound outlet 7 as an outlet. According to the structure, the damper and voice coil framework structures of the traditional common moving coil loudspeaker are designed and optimized, and the internal structure of the loudspeaker unit is redesigned, so that vibration energy which is not utilized in the original design is utilized, and the energy utilization efficiency of the loudspeaker is increased, so that the purpose of increasing the output sound pressure level is achieved. A circle of first folding ring 2 is arranged at the outer edge of the vibrating diaphragm 1, and the first folding ring 2 is used as a first elastic support of the vibrating diaphragm 1 in the axis direction; the first folding ring 2 is adhered to an annular surface part 6 arranged on the inner edge of the top of a metal basin frame 5, the annular surface part 6 can be integrally formed with the basin frame 5, the vibrating diaphragm 1, the first folding ring 2, the voice coil framework 3, the elastic wave 4 and the basin frame 5 enclose a closed space, and the only outlet of the closed space is a sound outlet 7, so that the voice coil framework 3 is driven to vibrate by the stress of a coil of the voice coil framework 3 in a magnetic field, and the vibrating diaphragm is pushed to vibrate; in order to ensure that the voice coil framework vibrates along the axis direction all the time, other parts are not touched in the vibration process, so that the vibrating diaphragm and the voice coil framework need to be supported for the second time in the axis direction, namely, the elastic wave is connected with one section of the voice coil framework, and the other section of the elastic wave is fixed on the metal basin frame. The diaphragm simultaneously radiates sound forward and backward during vibration, and the forward radiated sound is radiated to the outside of the speaker, i.e., sound audible to a user. The elastic wave serving as the second supporting structure continuously vibrates and radiates sound in the working process of the loudspeaker, and the sound radiated by the elastic wave can effectively reach the outside of the loudspeaker through the sound outlet 7 arranged on the annular surface part 6 and is superposed with the rising energy radiated by the vibrating diaphragm, so that the purpose of increasing the sound pressure level output by the loudspeaker box is achieved. The invention enables the elastic wave structure to play a role in centering and supporting, and can also efficiently convert the rising energy, thereby avoiding the waste of the elastic wave vibration energy.
Example two:
see figure 1. A loudspeaker comprises a vibrating diaphragm 1, a first corrugated rim 2, a voice coil framework 3, an elastic wave 4 and a basin frame 5; the vibrating diaphragm 1 is connected with an annular surface part 6 arranged on the inner edge of the top of the basin stand 5 through a first folding ring 2 arranged on the outer edge of the vibrating diaphragm 1; the annular surface part 6 is provided with a sound outlet 7; the vibrating diaphragm 1, the first corrugated rim 2, the voice coil framework 3, the elastic wave 4 and the basin frame 5 enclose a closed space with only the sound outlet 7 as an outlet. According to the structure, the damper and voice coil framework structures of the traditional common moving coil loudspeaker are designed and optimized, and the internal structure of the loudspeaker unit is redesigned, so that vibration energy which is not utilized in the original design is utilized, and the energy utilization efficiency of the loudspeaker is increased, so that the purpose of increasing the output sound pressure level is achieved. A circle of first folding ring 2 is arranged at the outer edge of the vibrating diaphragm 1, and the first folding ring 2 is used as a first elastic support of the vibrating diaphragm 1 in the axis direction; the first folding ring 2 is adhered to an annular surface part 6 arranged on the inner edge of the top of a metal basin frame 5, the annular surface part 6 can be integrally formed with the basin frame 5, the vibrating diaphragm 1, the first folding ring 2, the voice coil framework 3, the elastic wave 4 and the basin frame 5 enclose a closed space, and the only outlet of the closed space is a sound outlet 7, so that the voice coil framework 3 is driven to vibrate by the stress of a coil of the voice coil framework 3 in a magnetic field, and the vibrating diaphragm is pushed to vibrate; in order to ensure that the voice coil framework vibrates along the axis direction all the time, other parts are not touched in the vibration process, so that the vibrating diaphragm and the voice coil framework need to be supported for the second time in the axis direction, namely, the elastic wave is connected with one section of the voice coil framework, and the other section of the elastic wave is fixed on the metal basin frame. The diaphragm simultaneously radiates sound forward and backward during vibration, and the forward radiated sound is radiated to the outside of the speaker, i.e., sound audible to a user. The elastic wave serving as the second supporting structure continuously vibrates and radiates sound in the working process of the loudspeaker, and the sound radiated by the elastic wave can effectively reach the outside of the loudspeaker through the sound outlet 7 arranged on the annular surface part 6 and is superposed with the rising energy radiated by the vibrating diaphragm, so that the purpose of increasing the sound pressure level output by the loudspeaker box is achieved. The invention enables the elastic wave structure to play a role in centering and supporting, and can also efficiently convert the rising energy, thereby avoiding the waste of the elastic wave vibration energy.
The lower surface of the vibrating diaphragm 1 is connected with a voice coil framework 3; a basin frame 5 is arranged at the periphery of the voice coil framework 3; the elastic wave 4 is connected with the voice coil framework 3 and the basin frame 5; and a second folding ring 8 is arranged at the joint edge of the elastic wave 4 and the basin frame 5. According to the structure, the original elastic wave structure mainly plays a role in centering and supporting, so that the structural form is not beneficial to sound radiation, the elastic wave is designed into a vibrating diaphragm and folding ring form, the elastic wave 4 is connected with the basin frame 5 through the second folding ring 8, and the elastic wave 4 also becomes a vibrating diaphragm with an internal high-efficiency sound production; the novel structure of the vibrating diaphragm and the folding ring realizes the function of sound radiation and the function of centering support. According to the invention, through the structure optimization design, the vibration energy of the elastic wave is effectively utilized to increase the sound radiation so as to achieve the purpose of increasing the output sound pressure level.
Also comprises a shell 9; the basin stand 5 is fixed with the shell 9, and the basin stand 5 sinks into the inner space of the shell 9; the voice coil framework 3 is provided with a pressure equalizing hole 10; the pressure equalizing hole 10 enables the inner space of the shell 9 to be communicated with the inner space of the voice coil framework 3; the space below the damper 4 is communicated with the inner space of the shell 9. According to the structure, the sound energy radiated by the elastic wave 4 is radiated to the outside of the loudspeaker through the sound outlet 7 arranged on the annular surface part 6 and is superposed with the sound energy radiated by the vibrating diaphragm to the outside of the loudspeaker, so that the purpose of increasing the output sound pressure level of the loudspeaker box is achieved. Since the rearward radiated sound is 180 degrees out of phase with the forward radiated sound, it is necessary to enclose the rearward radiated sound with the case 9 in order to prevent sound attenuation caused by acoustic short-circuiting. The pressure equalizing hole 10 enables the inner space of the shell 9 to be communicated with the inner space of the voice coil framework 3; the space below the damper 4 is communicated with the inner space of the shell 9. Inside the sound of bullet ripples 4 and vibrating diaphragm back radiation entered into the speaker like this, accomplished 4 and the separation of vibrating diaphragm front and back radiation acoustic energy of bullet ripples, effectively avoided the acoustic short circuit, realized the normal work of speaker.
The upper section of the voice coil framework 3 is a bending surface with the caliber gradually increasing, so that the lower surface of the vibrating diaphragm 1 is completely wrapped in the inner space of the voice coil framework 3. By the structure, the lower surface of the vibrating diaphragm 1 is completely wrapped in the inner space of the voice coil framework 3, and the sound production efficiency of the vibrating diaphragm 1 is improved. The invention realizes the normal work of the loudspeaker, increases the radiation sound energy of the loudspeaker, and achieves the design aim of increasing the output sound pressure level under the condition that the thickness size of the vibrating diaphragm and the size of the magnetic circuit are not changed.
Example three:
see figure 1. A loudspeaker comprises a vibrating diaphragm 1, a first corrugated rim 2, a voice coil framework 3, an elastic wave 4 and a basin frame 5; the vibrating diaphragm 1 is connected with an annular surface part 6 arranged on the inner edge of the top of the basin stand 5 through a first folding ring 2 arranged on the outer edge of the vibrating diaphragm 1; the annular surface part 6 is provided with a sound outlet 7; the vibrating diaphragm 1, the first corrugated rim 2, the voice coil framework 3, the elastic wave 4 and the basin frame 5 enclose a closed space with only the sound outlet 7 as an outlet. According to the structure, the damper and voice coil framework structures of the traditional common moving coil loudspeaker are designed and optimized, and the internal structure of the loudspeaker unit is redesigned, so that vibration energy which is not utilized in the original design is utilized, and the energy utilization efficiency of the loudspeaker is increased, so that the purpose of increasing the output sound pressure level is achieved. A circle of first folding ring 2 is arranged at the outer edge of the vibrating diaphragm 1, and the first folding ring 2 is used as a first elastic support of the vibrating diaphragm 1 in the axis direction; the first folding ring 2 is adhered to an annular surface part 6 arranged on the inner edge of the top of a metal basin frame 5, the annular surface part 6 can be integrally formed with the basin frame 5, the vibrating diaphragm 1, the first folding ring 2, the voice coil framework 3, the elastic wave 4 and the basin frame 5 enclose a closed space, and the only outlet of the closed space is a sound outlet 7, so that the voice coil framework 3 is driven to vibrate by the stress of a coil of the voice coil framework 3 in a magnetic field, and the vibrating diaphragm is pushed to vibrate; in order to ensure that the voice coil framework vibrates along the axis direction all the time, other parts are not touched in the vibration process, so that the vibrating diaphragm and the voice coil framework need to be supported for the second time in the axis direction, namely, the elastic wave is connected with one section of the voice coil framework, and the other section of the elastic wave is fixed on the metal basin frame. The diaphragm simultaneously radiates sound forward and backward during vibration, and the forward radiated sound is radiated to the outside of the speaker, i.e., sound audible to a user. The elastic wave serving as the second supporting structure continuously vibrates and radiates sound in the working process of the loudspeaker, and the sound radiated by the elastic wave can effectively reach the outside of the loudspeaker through the sound outlet 7 arranged on the annular surface part 6 and is superposed with the rising energy radiated by the vibrating diaphragm, so that the purpose of increasing the sound pressure level output by the loudspeaker box is achieved. The invention enables the elastic wave structure to play a role in centering and supporting, and can also efficiently convert the rising energy, thereby avoiding the waste of the elastic wave vibration energy.
The lower surface of the vibrating diaphragm 1 is connected with a voice coil framework 3; a basin frame 5 is arranged at the periphery of the voice coil framework 3; the elastic wave 4 is connected with the voice coil framework 3 and the basin frame 5; and a second folding ring 8 is arranged at the joint edge of the elastic wave 4 and the basin frame 5. According to the structure, the original elastic wave structure mainly plays a role in centering and supporting, so that the structural form is not beneficial to sound radiation, the elastic wave is designed into a vibrating diaphragm and folding ring form, the elastic wave 4 is connected with the basin frame 5 through the second folding ring 8, and the elastic wave 4 also becomes a vibrating diaphragm with an internal high-efficiency sound production; the novel structure of the vibrating diaphragm and the folding ring realizes the function of sound radiation and the function of centering support. According to the invention, through the structure optimization design, the vibration energy of the elastic wave is effectively utilized to increase the sound radiation so as to achieve the purpose of increasing the output sound pressure level.
Also comprises a shell 9; the basin stand 5 is fixed with the shell 9, and the basin stand 5 sinks into the inner space of the shell 9; the voice coil framework 3 is provided with a pressure equalizing hole 10; the pressure equalizing hole 10 enables the inner space of the shell 9 to be communicated with the inner space of the voice coil framework 3; the space below the damper 4 is communicated with the inner space of the shell 9. According to the structure, the sound energy radiated by the elastic wave 4 is radiated to the outside of the loudspeaker through the sound outlet 7 arranged on the annular surface part 6 and is superposed with the sound energy radiated by the vibrating diaphragm to the outside of the loudspeaker, so that the purpose of increasing the output sound pressure level of the loudspeaker box is achieved. Since the rearward radiated sound is 180 degrees out of phase with the forward radiated sound, it is necessary to enclose the rearward radiated sound with the case 9 in order to prevent sound attenuation caused by acoustic short-circuiting. The pressure equalizing hole 10 enables the inner space of the shell 9 to be communicated with the inner space of the voice coil framework 3; the space below the damper 4 is communicated with the inner space of the shell 9. Inside the sound of bullet ripples 4 and vibrating diaphragm back radiation entered into the speaker like this, accomplished 4 and the separation of vibrating diaphragm front and back radiation acoustic energy of bullet ripples, effectively avoided the acoustic short circuit, realized the normal work of speaker.
The upper section of the voice coil framework 3 is a bending surface with the caliber gradually increasing, so that the lower surface of the vibrating diaphragm 1 is completely wrapped in the inner space of the voice coil framework 3. By the structure, the lower surface of the vibrating diaphragm 1 is completely wrapped in the inner space of the voice coil framework 3, and the sound production efficiency of the vibrating diaphragm 1 is improved. The invention realizes the normal work of the loudspeaker, increases the radiation sound energy of the loudspeaker, and achieves the design aim of increasing the output sound pressure level under the condition that the thickness size of the vibrating diaphragm and the size of the magnetic circuit are not changed.
The sound outlet 7 is a plurality of strip-shaped through holes or round holes on the annular surface part 6. According to the structure, the elastic waves 4 are enabled to fully radiate sound energy forwards through the strip-shaped through holes or the round holes.
The magnetic conduction bowl also comprises a magnetic conduction bowl 11 and a magnet 12; the magnetic conducting bowl 11 surrounds the magnet 12, and a magnetic gap is arranged between the magnetic conducting bowl 11 and the magnet 12; and the coil section of the voice coil framework 3 extends into the magnetic gap. According to the structure, the coil of the voice coil framework 3 is stressed in the magnetic field formed by the magnetic conduction bowl 11 and the magnet 12 to drive the voice coil framework 3 to vibrate, so that the vibrating diaphragm is pushed to vibrate.
The lower end of the basin stand 5 is connected with the magnetic conduction bowl 11.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (5)

1. A loudspeaker, characterized by: comprises a vibrating diaphragm (1), a first folding ring (2), a voice coil framework (3), an elastic wave (4) and a basin frame (5); the vibrating diaphragm (1) is connected with an annular surface part (6) arranged on the inner edge of the top of the basin frame (5) through a first folding ring (2) arranged on the outer edge of the vibrating diaphragm (1); the annular surface part (6) is provided with a sound outlet (7); the vibrating diaphragm (1), the first corrugated ring (2), the voice coil framework (3), the elastic wave (4) and the basin frame (5) enclose a closed space with only the sound outlet (7) as an outlet; the lower surface of the vibrating diaphragm (1) is connected with a voice coil framework (3); a basin frame (5) is arranged on the periphery of the voice coil framework (3); the elastic wave (4) is connected with the voice coil framework (3) and the basin frame (5); a second folding ring (8) is arranged at the connecting edge of the elastic wave (4) and the basin frame (5); further comprising a housing (9); the basin stand (5) is fixed with the shell (9), and the basin stand (5) sinks into the inner space of the shell (9); the voice coil framework (3) is provided with a pressure equalizing hole (10); the pressure equalizing hole (10) enables the inner space of the shell (9) to be communicated with the inner space of the voice coil framework (3); the space below the damper (4) is communicated with the inner space of the shell (9).
2. A loudspeaker according to claim 1, wherein: the upper section of the voice coil framework (3) is a curved surface with gradually increased caliber, so that the lower surface of the vibrating diaphragm (1) is completely wrapped in the inner space of the voice coil framework (3).
3. A loudspeaker according to claim 1, wherein: the sound outlet (7) is provided with a plurality of strip-shaped through holes or round holes on the annular surface part (6).
4. A loudspeaker according to claim 1, wherein: the magnetic conduction bowl also comprises a magnetic conduction bowl (11) and a magnet (12); the magnetic conduction bowl (11) surrounds the magnet (12), and a magnetic gap is formed between the magnetic conduction bowl (11) and the magnet (12); and the coil section of the voice coil framework (3) extends into the magnetic gap.
5. A loudspeaker according to claim 4, wherein: the lower end of the basin frame (5) is connected with the magnetic conduction bowl (11).
CN202011145126.XA 2020-10-23 2020-10-23 Loudspeaker Active CN112261558B (en)

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CN202011145126.XA CN112261558B (en) 2020-10-23 2020-10-23 Loudspeaker

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Application Number Priority Date Filing Date Title
CN202011145126.XA CN112261558B (en) 2020-10-23 2020-10-23 Loudspeaker

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Publication Number Publication Date
CN112261558A CN112261558A (en) 2021-01-22
CN112261558B true CN112261558B (en) 2021-11-23

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