CN110996229A - Loudspeaker and electronic equipment - Google Patents
Loudspeaker and electronic equipment Download PDFInfo
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- CN110996229A CN110996229A CN201911253107.6A CN201911253107A CN110996229A CN 110996229 A CN110996229 A CN 110996229A CN 201911253107 A CN201911253107 A CN 201911253107A CN 110996229 A CN110996229 A CN 110996229A
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- loudspeaker
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
Abstract
The embodiment of the invention relates to the field of electroacoustic, and discloses a loudspeaker and an electronic device, which comprise: the vibration control device comprises a first vibration system, a second vibration system and a magnetic circuit system; the magnetic circuit system comprises a magnet unit which is of an integral structure, and a first magnetic conduction plate and a second magnetic conduction plate which are oppositely arranged, and the magnet unit is positioned between the first magnetic conduction plate and the second magnetic conduction plate; the first vibration system is located on one side, away from the second magnetic conduction plate, of the first magnetic conduction plate, the second vibration system is located on one side, away from the first magnetic conduction plate, of the second magnetic conduction plate, and the magnetic circuit system is provided with a magnetic gap used for containing the first voice coil and the second voice coil. The first vibration system and the second vibration system of the loudspeaker provided by the invention share one magnetic circuit system, so that the sound effect of the loudspeaker can be enhanced, and the loudspeaker has a thinner and simpler loudspeaker structure.
Description
Technical Field
The embodiment of the invention relates to the field of electroacoustic, in particular to a loudspeaker and electronic equipment.
Background
As a very common electroacoustic transducer, a speaker has been widely used in electronic devices and electronic devices such as audio equipment, mobile phones, computers, televisions, and the like. With the continuous development of speaker technology, in order to make the sound played by the speaker have more levels of audibility, some technical schemes capable of enhancing the low-frequency effect of the speaker emerge in the prior art, for example, the technical problem of poor tone quality of part of the frequency bands of the speaker is solved by arranging an integrated medium-high frequency active speaker system and low-frequency passive system to cover the high-medium low full-frequency band sound; or the double loudspeakers are arranged to respectively meet the requirements of low-frequency sound field driving and medium and high-frequency sound field driving, so that the low-frequency sound effect of the loudspeaker is enhanced.
The inventors have found that, as the demands of users on the sound effects of speakers increase, the improvement in the sound effects and the reduction in the weight of the speakers become important issues in designing the speakers.
Disclosure of Invention
Embodiments of the present invention provide a speaker and an electronic device, which can enhance the sound effect of the conventional speaker and have a light, thin and simplified internal structure.
To solve the above technical problem, an embodiment of the present invention provides a speaker, including: the vibration control device comprises a first vibration system, a second vibration system and a magnetic circuit system; the first vibration system comprises a first vibrating diaphragm and a first voice coil connected with the first vibrating diaphragm, the second vibration system comprises a second vibrating diaphragm and a second voice coil connected with the second vibrating diaphragm, the magnetic circuit system comprises a magnet unit which is of an integral structure and a first magnetic conduction plate and a second magnetic conduction plate which are oppositely arranged, and the magnet unit is positioned between the first magnetic conduction plate and the second magnetic conduction plate; the first vibration system is located on one side, far away from the second magnetic conduction plate, of the first magnetic conduction plate, the second vibration system is located on one side, far away from the first magnetic conduction plate, of the second magnetic conduction plate, and the magnetic circuit system is provided with a magnetic gap used for containing the first voice coil and the second voice coil.
An embodiment of the present invention further provides an electronic device including any one of the speakers described above.
According to the loudspeaker and the electronic equipment provided by the embodiment of the invention, the second vibration system is added on the basis of the existing loudspeaker, the sound effect of the loudspeaker can be reinforced by combining the two vibration systems, the power boosting or low-frequency expression is realized by flexibly setting the frequencies of the two vibration systems, the sound production effect of the loudspeaker can be promoted, the first vibration system and the second vibration system share one magnetic circuit system, the sound production effect of the loudspeaker is promoted, meanwhile, the loudspeaker has a simplified internal structure, the internal space of the loudspeaker can be greatly saved, and the loudspeaker is favorable for light and thin design.
In addition, first voice coil loudspeaker voice coil with the second voice coil loudspeaker voice coil is structure as an organic whole, constitutes a long voice coil loudspeaker voice coil jointly, first vibrating diaphragm with the second vibrating diaphragm passes through long voice coil loudspeaker voice coil connects. The first diaphragm and the second diaphragm share one long voice coil, so that the internal structure of the loudspeaker can be simplified.
In addition, the first voice coil and the second voice coil are of a separate structure, and the first voice coil and the second voice coil vibrate independently. The voice coil loudspeaker voice coil of independent vibration separately is convenient for regulate and control first vibration system and second vibration system and be the resonance frequency point of difference to make the voice coil loudspeaker voice coil of difference can be used to realize the vocal of the sound of different frequency channels, and then the performance of reinforcing speaker at full frequency channel.
In addition, the magnet unit comprises a first part and a second part, the first part is positioned between the first magnetic conduction plate and the second part, and the orthographic projection of the first part on the first magnetic conduction plate is positioned in the orthographic projection of the second part on the first magnetic conduction plate; the first portion having a first magnetic gap for receiving the first voice coil, the second portion having a second magnetic gap for receiving the second voice coil; the diameter of the first voice coil is smaller than the diameter of the second voice coil.
In addition, the resonance frequency point of the second vibration system is lower than the resonance frequency point of the first vibration system. And reinforcing the low-frequency effect of the first vibration system by using the second vibration with a low resonance frequency point, thereby realizing the low-frequency reverberation effect of the loudspeaker.
In addition, the area of the second diaphragm is larger than that of the first diaphragm.
In addition, the mass of the second vibration system is greater than the mass of the first vibration system.
In addition, the resonance frequency point of the second vibration system is the same as the resonance frequency point of the first vibration system. The first vibration system and the second vibration system with the same resonance frequency point are adopted, so that the space in the loudspeaker can be saved, the sound output power of the loudspeaker is higher, and the loudspeaker has a stronger sound output effect.
In addition, the loudspeaker also comprises a resonant cavity positioned on one side of the second vibration system far away from the first vibration system, and the second diaphragm is completely accommodated in the resonant cavity. By adding the resonant cavity on the side of the low-frequency resonance system, the low-frequency resonance can be effectively enhanced, so that the low-frequency reverberation of the loudspeaker is enhanced.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic cross-sectional view of a speaker according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a speaker according to a second embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of a speaker according to a third embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and mutually referenced without contradiction
A first embodiment of the present invention provides a speaker, which includes: the vibration control device comprises a first vibration system, a second vibration system and a magnetic circuit system; the magnetic circuit system comprises a magnet unit which is of an integral structure, and a first magnetic conduction plate and a second magnetic conduction plate which are oppositely arranged, and the magnet unit is positioned between the first magnetic conduction plate and the second magnetic conduction plate; the first vibration system is located on one side, away from the second magnetic conduction plate, of the first magnetic conduction plate, the second vibration system is located on one side, away from the first magnetic conduction plate, of the second magnetic conduction plate, and the magnetic circuit system is provided with a magnetic gap used for containing the first voice coil and the second voice coil.
The loudspeaker that this embodiment provided sets up first vibration system and second vibration system through the both sides that are overall structure's magnetic circuit to can realize the enhancement of the sound effect of the different frequency channels of loudspeaker through the resonance frequency point of adjustment second vibration system, and then provide better sound effect.
In particular, referring to fig. 1, the speaker provided in the first embodiment will be described in further detail below
The loudspeaker 10 provided by the present embodiment specifically includes a first vibration system 11, a second vibration system 12, and a magnetic circuit system 13; the first vibration system 11 includes a first diaphragm 101 and a first voice coil 102, the second vibration system 12 includes a second diaphragm 103 and a second voice coil 104, the magnetic circuit system 13 includes a magnet unit 105, a first magnetic conductive plate 106 and a second magnetic conductive plate 107, wherein the first voice coil 102 and the second voice coil 104 are integrated to form a long voice coil, and the first diaphragm 101 and the second diaphragm 103 are connected through the long voice coil.
It is understood that the speaker 10 provided in the present embodiment may further include a bracket 109 for providing mechanical protection for the first vibration system 11 and the second vibration system 12; an audio signal interface terminal board 110, wherein the terminal board 110 is used for accessing audio signals of the first voice coil 102 and the second voice coil 104; and the annular gasket 111 is positioned at the inner side edge of the bracket, and the gasket 111 is attached to the surface of the vibrating diaphragm so that the vibrating diaphragm is tightly bonded with the bracket 109. In addition, the loudspeaker provided by the embodiment of the invention can also comprise an outer shell for providing mechanical protection for the loudspeaker.
The present embodiment provides a loudspeaker 10 including a dual vibration system in which the first vibration system 11 and the second vibration system 12 share one magnetic circuit system 13. The magnetic circuit system 13 includes a magnet unit 105 and a first magnetic conductive plate 106 and a second magnetic conductive plate 107 respectively located at two sides of the magnet unit 105. The first magnetic conductive plate 106 and the second magnetic conductive plate 107 are respectively attached to the upper and lower surfaces of the magnet unit 105 and are oppositely disposed, so as to form an integral structure in which the first magnetic conductive plate 106 and the second magnetic conductive plate 107 jointly sandwich the magnet unit 105. In this embodiment, an orthographic projection of the first magnetic conductive plate on the magnet unit 105 coincides with an orthographic projection of the second magnetic conductive plate on the magnet unit, and further, the first magnetic conductive plate 106 and the second magnetic conductive plate 107 are magnetic conductive plates having the same diameter as the magnet unit 105. In other embodiments, the diameters of the first and second magnetically permeable plates may not be the same.
The speaker 10 provided in this embodiment further includes a frame 108, and the frame 108 is disposed around the magnetic circuit system 13 and is used for providing mechanical support for the magnetic circuit system 13. Magnetic gaps for accommodating the first voice coil 102 and the second voice coil 104 are formed between the frame 108 and the magnet unit 105, the first magnetic conductive plate 106 and the second magnetic conductive plate 107.
The magnet units 105 are of permanent magnet material, preferably neodymium iron boron permanent magnets. Adopt the great neodymium iron boron permanent magnet of magnetic density, can provide stronger magnetic field for the vibration of voice coil loudspeaker voice coil to increase the whole tone quality of speaker.
In this embodiment, the first vibration system 11 includes a first diaphragm 101 and a first voice coil 102, and the first diaphragm 101 and the first voice coil 102 are fixedly connected. Referring to fig. 1, the first diaphragm 101 and the second diaphragm 103 in this embodiment are diaphragms having a dome portion at a central position and a flexure portion at an edge position. In other embodiments, the first diaphragm or the second diaphragm may also be a flat-plate diaphragm fixedly connected to the voice coil.
The first voice coil 102 is accommodated in a magnetic gap formed between the frame 108 and the first magnetic conductive plate 106 and the magnet unit 105, and when the first voice coil 102 is connected to a current signal corresponding to an audio frequency, the first voice coil 102 vibrates up and down in the magnetic gap under the action of a magnetic field to drive the first diaphragm 101 to vibrate.
The second vibration system 12 includes a second diaphragm 103 and a second voice coil 104, the second diaphragm 103 is fixedly connected to the second voice coil 104, the second voice coil 104 is accommodated in a magnetic gap formed between the frame 108 and the second magnetic conductive plate 107, and the magnet unit 105, and when the second voice coil 104 is connected to a current signal corresponding to an audio frequency, the second voice coil 104 vibrates up and down in the magnetic gap to drive the second diaphragm 101 to vibrate and sound.
Through increasing second vibration system 12, the resonance frequency point of corresponding second vibration system 12 can be the same with first vibration system 11, also can be different with the resonance frequency point of first vibration system 11 to the reinforcement of the sound effect to the corresponding frequency channel of original vibration system is realized, or makes original speaker have the reverberation effect of different frequency channels, thereby promotes the layering sense that the speaker sounded.
In this embodiment, the first vibration system 11 of the speaker 10 includes a first diaphragm 101 and a first voice coil 102, the second vibration system 12 includes a second diaphragm 103 and a second voice coil 104, the first voice coil 102 and the second voice coil 104 are integrated structures surrounding the magnet unit 105, and jointly form a long voice coil, the first diaphragm 101 and the second diaphragm 103 are respectively fixedly connected with the upper and lower ends of the long voice coil, the long voice coil vibrates up and down in the magnetic gap between the magnet unit 105 and the frame 108 after being connected with the current signal corresponding to the audio signal, and drives the first diaphragm 101 and the second diaphragm 103 to vibrate and sound up and down.
It is understood that, in the present embodiment, the long voice coil of the integral structure is a tubular coil that surrounds the magnet unit 105 and the first magnetic conductive plate 106 and the second magnetic conductive plate 107, and the cross section at any position is a circular ring with the same diameter.
In this embodiment, the long voice coil side wall has two symmetrically disposed openings, the openings expose a local area of the magnetic circuit system 13, and the frame 108 has a connecting portion passing through the openings and fixedly connected with the magnetic circuit system 13, so as to fixedly connect the magnetic circuit system 13 and the frame 108, thereby fixing the magnetic circuit system 13.
Connect first vibrating diaphragm 101 and second vibrating diaphragm 103 through long voice coil, long voice coil is when inserting audio signal and corresponding ground current signal, vibrates from top to bottom in the magnetic gap between magnet unit 105 and basin frame 108, drives first vibrating diaphragm 101 and second vibrating diaphragm 103 vibration from top to bottom simultaneously.
In this embodiment, the resonance frequency points of the first vibration system 11 and the second vibration system 12 are different, and the resonance frequency point of the second vibration system 12 is smaller than the resonance frequency point of the first vibration system 11. By adding the second vibration system 12 with a low resonance frequency point, the low-frequency reverberation effect is realized while the first vibration system 11 vibrates to generate sound.
It is understood that, in order to obtain a better low frequency reverberation effect, in the present embodiment, the area of the second diaphragm 103 is larger than that of the first diaphragm 101. In other embodiments, the mass of the second diaphragm may be greater than the mass of the first diaphragm.
The loudspeaker 10 provided by this embodiment, the first vibration system 11 and the second vibration system 12 are arranged on two sides of the magnetic circuit system 13 which is an integral structure, and the first vibration system 11 and the second vibration system 12 are connected through the long voice coil, and the first vibration system 11 and the second vibration system 12 have the same vibration driving force, so that the resonance frequency points of the first vibration system 11 and the second vibration system 12 can be adjusted by adjusting the area or the mass of the vibrating diaphragm, and because the first vibration system 11 and the second vibration system 12 are the same driving voice coil, it is not necessary to set an avoidance space in the magnetic gap to realize the independent vibration of the original first voice coil and the original second voice coil, and when the sound effects of different frequency bands of the loudspeaker are enhanced, the structure of the loudspeaker is further simplified. A second embodiment of the present invention relates to a speaker. The second embodiment is substantially the same as the above-described embodiment, with the main differences being: in the second embodiment of the present invention, the first voice coil and the second voice coil are separate structures, and the first voice coil and the second voice coil vibrate independently. First voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil are the isolating construction, and first vibration system and second vibration system independently vibrate separately, and the resonance frequency point of adjustment first vibration system and second vibration system that can be more convenient to reach the purpose of reinforcing speaker audio.
Fig. 2 is a cross-sectional structural view of the speaker 20 according to the present embodiment, and details of the speaker according to the present embodiment will be described in detail with reference to fig. 2.
It should be noted that, for the same parts, please refer to the previous embodiment in detail, and the description is omitted here.
The present embodiment provides a speaker 20, including: a first vibration system 21, a second vibration system 22, and a magnetic circuit system 23; the first vibration system 21 comprises a first diaphragm 201 and a first voice coil 201, the second vibration system 22 comprises a second diaphragm 203 and a second voice coil 204, and the magnetic circuit system 23 comprises a magnet unit 205, a first magnetic conduction plate 206 and a second magnetic conduction plate 207 which are of an integral structure; the first voice coil 202 and the second voice coil 204 are separate structures, and the first vibration system 21 and the second vibration system 22 vibrate independently.
In this embodiment, the first voice coil 202 surrounds the first magnetic conductive plate 206 and is located in the magnetic gap between the magnetic circuit system 23 and the basin frame 208, the second voice coil 204 surrounds the second magnetic conductive plate 207 and is located in the magnetic gap between the magnetic circuit system 23 and the basin frame 208, the first voice coil 202 and the second voice coil 204 are two voice coils which are independently separated, the first voice coil 202 generates up-and-down vibration in the magnetic gap when accessing the first audio signal, so as to drive the first diaphragm 201 to vibrate and sound, and the second voice coil 204 generates up-and-down vibration in the magnetic gap when accessing the second audio signal, so as to drive the second diaphragm 203 to vibrate and sound.
In this embodiment, the first audio signal and the second audio signal are the same audio signal, and in other embodiments, the first audio signal and the second audio signal may also be different audio signals.
It is understood that, in order to avoid interference between the first voice coil 202 and the second voice coil 204 during respective vibration, in the present embodiment, a spacing space is provided between the first voice coil 202 and the second voice coil 204, and a sufficient spacing is provided between an end surface of the first voice coil 202 facing the second magnetic conductive plate 207 and an end surface of the second voice coil 204 facing the first magnetic conductive plate 206, so as to ensure that the first voice coil 202 and the second voice coil 204 do not collide during vibration.
In other embodiments, the diameter of the first voice coil can be smaller than that of the second voice coil, and the first voice coil is sleeved in the second voice coil, so that the vibration track of the first voice coil is not overlapped with the vibration track of the second voice coil, and the first voice coil and the second voice coil are guaranteed not to interfere with each other in the vibration process.
In this embodiment, the resonance frequency points of the first vibration system 21 and the second vibration system 22 are different, and the resonance frequency point of the second vibration system 22 is smaller than the resonance frequency point of the first vibration system 21. By adding the second vibration system 22 with a low resonance frequency point on the basis of the original vibration system, the low-frequency sound effect of the loudspeaker 20 can be correspondingly enhanced, and the sound effect of low-frequency reverberation is realized.
It can be understood that the resonance frequency point of the vibration system can be adjusted by adjusting the area of the diaphragm. In this embodiment, the area of the second diaphragm 203 is larger than that of the first diaphragm 201, so that the resonance frequency of the second vibration system 22 is lower than that of the first vibration system 21.
It should be noted that the resonance frequency point of the vibration system can also be adjusted by adjusting the mass of the vibration system. For example, in other embodiments, the overall mass of the second vibration system is greater than the mass of the first vibration system. That is, the sum of the masses of the second diaphragm and the second voice coil is greater than the sum of the masses of the first diaphragm and the first voice coil. The mode of adjustment vibration system's quality can be first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil of adopting the same material different length, or first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil that length is the same but the material that adopts different density was made, or adopt the same material but first vibrating diaphragm and the second vibrating diaphragm of variation in size, or adopt the same size, but adopt modes such as first vibrating diaphragm and the second vibrating diaphragm that the material of different density was made.
It is understood that in other embodiments, the resonant frequency point of the second vibration system is the same as the resonant frequency point of the first vibration system. The first vibration system and the second vibration system with the same resonance frequency point are adopted, double output of the same audio signal can be achieved in the same magnet unit, and therefore a larger sound effect is obtained, and larger loudspeaker output power can be obtained under the same volume.
The loudspeaker 20 provided by the embodiment is provided with the first vibration system 21 and the second vibration system 22 on two sides of the magnetic circuit system 23 which is of an integral structure, so that the sound effects of different frequency bands of the loudspeaker can be enhanced by adjusting the resonance frequency point of the second vibration system 22, and the loudspeaker has a simpler internal structure while providing a better sound effect.
A third embodiment of the present invention relates to a speaker. The third embodiment is substantially the same as the above embodiments, with the main difference that: in a third embodiment of the present invention, the magnet unit includes a first portion and a second portion, the first portion is located between the first magnetic conductive plate and the second portion, and an orthographic projection of the first portion on the first magnetic conductive plate is located within an orthographic projection of the second portion on the first magnetic conductive plate; the first part is provided with a first magnetic gap for accommodating the first voice coil, and the second part is provided with a second magnetic gap for accommodating the second voice coil; the diameter of the first voice coil is smaller than the diameter of the second voice coil. Through setting up the different first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil of diameter, and can adjust the resonance frequency point of vibration system as required, through the different resonance frequency points of first vibration system and second vibration system, and then the reverberation sound effect of reinforcing speaker.
Fig. 3 is a cross-sectional structural view of the speaker according to the present embodiment, and details of the speaker according to the present embodiment will be described in detail with reference to fig. 3.
It should be noted that, for the same parts, please refer to the previous embodiment in detail, and the description is omitted here.
The speaker 30 provided in the present embodiment includes: a first vibration system 31, a second vibration system 32, and a magnetic circuit system 33; the first vibration system 31 comprises a first diaphragm 301 and a first voice coil 302, the second vibration system 32 comprises a second diaphragm 303 and a second voice coil 304, and the magnetic circuit system 33 comprises a magnet unit 305, a first magnetic conduction plate 306 and a second magnetic conduction plate 307 which are of an integral structure; the first voice coil 302 and the second voice coil 304 are separate structures, and the first vibration system 31 and the second vibration system 32 vibrate independently. The magnet unit 305 includes a first portion and a second portion, the first portion being located between the first magnetically permeable plate 306 and the second portion, the orthographic projection of the first magnetically permeable plate 306 of the first portion being located within the orthographic projection of the second portion of the first magnetically permeable plate 306.
In this embodiment, the magnet unit 305 includes two parts, a first part contacting with the first magnetic conductive plate 306 and a second part contacting with the second magnetic conductive plate 307, the diameter of the first part is smaller than that of the second part, and the orthographic projection of the first part on the first magnetic conductive plate 306 falls within the orthographic projection of the second part on the first magnetic conductive plate 306. With this arrangement, two annular magnetic gaps with different diameters can be designed in the same magnet unit, so as to accommodate the first voice coil 302 and the second voice coil 304 with different diameters.
It will be appreciated that the basin stand 308 in this embodiment surrounds both the first and second portions of the magnet unit 305, and that the first portion of the magnet unit 305 forms a magnetic gap with the basin stand 308 that is as wide as the second portion of the magnet unit 305 forms a magnetic gap with the basin stand 308.
In this embodiment, the resonance frequency points of the first vibration system 31 and the second vibration system 32 are different, and specifically, the resonance frequency point of the second vibration system 32 is lower than the resonance frequency point of the first vibration system 31. The second vibration 303 has a larger area than the first diaphragm 301.
In addition, in order to enhance the sound effect of the low-frequency vibration system, in this embodiment, the speaker 30 further includes a resonant cavity located on a side of the second vibration system 32 away from the first vibration system 31, and the second diaphragm 303 is completely accommodated in the resonant cavity.
In the speaker 30 provided in this embodiment, the second vibration system 32 having a low-frequency resonance frequency point is added to the original vibration system, so that the low-frequency sound effect of the speaker is enhanced, and the low-frequency reverberation effect is achieved while the high-frequency vibration is achieved; and the double-vibration system shares one magnetic circuit system 33, so that the low-frequency effect is enhanced, the structure of the internal loudspeaker is simplified, the occupied space volume is saved, and the preparation of small equipment is facilitated.
The fourth embodiment of the present invention also provides an electronic device including the speaker in any of the above embodiments.
The electronic device is, for example, an electronic device with a function of playing sound, such as a mobile phone, a tablet, a computer, or a television.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific embodiments for practicing the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A loudspeaker, comprising: the vibration control device comprises a first vibration system, a second vibration system and a magnetic circuit system;
the first vibration system comprises a first vibrating diaphragm and a first voice coil connected with the first vibrating diaphragm, the second vibration system comprises a second vibrating diaphragm and a second voice coil connected with the second vibrating diaphragm, the magnetic circuit system comprises a magnet unit which is of an integral structure and a first magnetic conduction plate and a second magnetic conduction plate which are oppositely arranged, and the magnet unit is positioned between the first magnetic conduction plate and the second magnetic conduction plate;
the first vibration system is located on one side, far away from the second magnetic conduction plate, of the first magnetic conduction plate, the second vibration system is located on one side, far away from the first magnetic conduction plate, of the second magnetic conduction plate, and the magnetic circuit system is provided with a magnetic gap used for containing the first voice coil and the second voice coil.
2. The loudspeaker of claim 1, wherein the first voice coil and the second voice coil are of a unitary structure and together form a long voice coil, and the first diaphragm and the second diaphragm are connected by the long voice coil.
3. The speaker of claim 1, wherein said first voice coil and said second voice coil are separate structures, and wherein said first voice coil and said second voice coil each independently vibrate.
4. The loudspeaker of claim 3, wherein the magnet unit comprises a first portion and a second portion, the first portion being located between the first magnetically permeable plate and the second portion, the orthographic projection of the first magnetically permeable plate of the first portion being located within the orthographic projection of the second portion of the first magnetically permeable plate; the first portion having a first magnetic gap for receiving the first voice coil, the second portion having a second magnetic gap for receiving the second voice coil; the diameter of the first voice coil is smaller than the diameter of the second voice coil.
5. The loudspeaker of claim 1, wherein the resonance frequency point of the second vibration system is lower than the resonance frequency point of the first vibration system.
6. The loudspeaker of claim 5, wherein the second diaphragm has an area larger than an area of the first diaphragm.
7. A loudspeaker according to claim 5, wherein the mass of the second vibration system is greater than the mass of the first vibration system.
8. The loudspeaker of claim 1, wherein the resonance frequency point of the second vibration system is the same as the resonance frequency point of the first vibration system.
9. The loudspeaker of claim 1, further comprising a resonant cavity on a side of said second vibration system remote from said first vibration system, said second diaphragm being entirely contained within said resonant cavity.
10. An electronic device comprising the speaker according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253107.6A CN110996229A (en) | 2019-12-09 | 2019-12-09 | Loudspeaker and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253107.6A CN110996229A (en) | 2019-12-09 | 2019-12-09 | Loudspeaker and electronic equipment |
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| CN110996229A true CN110996229A (en) | 2020-04-10 |
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| CN201911253107.6A Pending CN110996229A (en) | 2019-12-09 | 2019-12-09 | Loudspeaker and electronic equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111601213A (en) * | 2020-05-29 | 2020-08-28 | Oppo广东移动通信有限公司 | Electroacoustic module, electronic equipment and audio output method |
| CN111757219A (en) * | 2020-06-29 | 2020-10-09 | 歌尔股份有限公司 | Sound production device and head-mounted electronic apparatus |
| CN113194390A (en) * | 2021-04-23 | 2021-07-30 | 歌尔股份有限公司 | Sound producing device |
| CN113573216A (en) * | 2020-04-29 | 2021-10-29 | 维沃移动通信有限公司 | Speaker and electronic equipment |
| CN114268889A (en) * | 2021-12-14 | 2022-04-01 | 歌尔科技有限公司 | Speaker and electronic apparatus |
| CN114449422A (en) * | 2022-01-30 | 2022-05-06 | 歌尔科技有限公司 | Speaker and electronic apparatus |
| CN114449421A (en) * | 2022-01-30 | 2022-05-06 | 歌尔科技有限公司 | Speaker and electronic apparatus |
| CN114501245A (en) * | 2021-06-02 | 2022-05-13 | 荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
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| CN113573216B (en) * | 2020-04-29 | 2023-11-03 | 维沃移动通信有限公司 | Speaker and electronic equipment |
| CN113573216A (en) * | 2020-04-29 | 2021-10-29 | 维沃移动通信有限公司 | Speaker and electronic equipment |
| EP4145856A4 (en) * | 2020-04-29 | 2024-01-17 | Vivo Mobile Communication Co Ltd | Loudspeaker and electronic device |
| CN111601213B (en) * | 2020-05-29 | 2022-04-19 | Oppo广东移动通信有限公司 | Electroacoustic module, electronic equipment and audio output method |
| CN111601213A (en) * | 2020-05-29 | 2020-08-28 | Oppo广东移动通信有限公司 | Electroacoustic module, electronic equipment and audio output method |
| CN111757219A (en) * | 2020-06-29 | 2020-10-09 | 歌尔股份有限公司 | Sound production device and head-mounted electronic apparatus |
| CN113194390A (en) * | 2021-04-23 | 2021-07-30 | 歌尔股份有限公司 | Sound producing device |
| CN114501245A (en) * | 2021-06-02 | 2022-05-13 | 荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
| CN114268889A (en) * | 2021-12-14 | 2022-04-01 | 歌尔科技有限公司 | Speaker and electronic apparatus |
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| CN114449422B (en) * | 2022-01-30 | 2024-02-09 | 歌尔科技有限公司 | Speaker and electronic device |
| CN114449421B (en) * | 2022-01-30 | 2024-04-09 | 歌尔科技有限公司 | Speaker and electronic device |
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Application publication date: 20200410 |