CN114268889A - Speaker and electronic apparatus - Google Patents
Speaker and electronic apparatus Download PDFInfo
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- CN114268889A CN114268889A CN202111530723.9A CN202111530723A CN114268889A CN 114268889 A CN114268889 A CN 114268889A CN 202111530723 A CN202111530723 A CN 202111530723A CN 114268889 A CN114268889 A CN 114268889A
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- 230000033001 locomotion Effects 0.000 description 3
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- 230000003190 augmentative effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005237 high-frequency sound signal Effects 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
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- 238000002955 isolation Methods 0.000 description 2
- 230000005238 low-frequency sound signal Effects 0.000 description 2
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Abstract
The invention discloses a loudspeaker and an electronic device using the same. The loudspeaker comprises a basin frame, a magnetic circuit system, a first vibration system and a second vibration system; the magnetic circuit system is arranged in the basin frame and is provided with a first magnetic gap and a second magnetic gap which are isolated from each other, and the first magnetic gap and the second magnetic gap are opened towards opposite directions; the first vibration system is provided with a first vibration diaphragm and a first voice coil, the first vibration diaphragm is arranged on the basin frame in a covering mode and is opposite to the first magnetic gap, one end of the first voice coil is connected to the first vibration diaphragm, and the other end of the first voice coil is inserted into the first magnetic gap; the second vibration system is provided with a second vibrating diaphragm and a second voice coil, the second vibrating diaphragm cover is arranged on the basin frame and is opposite to the second magnetic gap, one end of the second voice coil is connected to the second vibrating diaphragm, and the other end of the second voice coil is inserted into the second magnetic gap. The technical scheme of the invention can simultaneously meet the requirements of low frequency and high frequency of tone quality.
Description
Technical Field
The invention relates to the technical field of electroacoustic transduction, in particular to a loudspeaker and electronic equipment using the loudspeaker.
Background
With the improvement of living standard and the development of speaker technology, people have higher and higher expectations and requirements for sound quality of electronic devices. The performance of a loudspeaker as a transducer for converting an electric signal into an acoustic signal largely determines the quality of the sound quality. The existing micro-speaker is widely applied to various small electronic devices. However, the conventional micro-speaker cannot satisfy both the low frequency and high frequency sound quality requirements due to limitations in various aspects.
Disclosure of Invention
The invention mainly aims to provide a loudspeaker and electronic equipment applying the loudspeaker, aiming at meeting the requirements of tone quality low frequency and high frequency at the same time.
To achieve the above object, an embodiment of the present invention provides a speaker, including:
a basin stand;
a magnetic circuit system installed in the tub stand and formed with a first magnetic gap and a second magnetic gap isolated from each other, the first magnetic gap and the second magnetic gap being open in opposite directions;
the first vibration system is provided with a first vibrating diaphragm and a first voice coil, the first vibrating diaphragm is arranged on the basin frame in a covering mode and is arranged opposite to the first magnetic gap, one end of the first voice coil is connected to the first vibrating diaphragm, and the other end of the first voice coil is inserted into the first magnetic gap; and
the second vibration system is provided with a second vibrating diaphragm and a second voice coil, the second vibrating diaphragm cover is arranged on the basin frame and is opposite to the second magnetic gap, and one end of the second voice coil is connected with the second vibrating diaphragm and the other end of the second voice coil is inserted into the second magnetic gap.
In an embodiment of the present invention, the magnetic circuit system includes:
an inner magnetic path portion;
an intermediate magnetic circuit portion enclosed outside the inner magnetic circuit portion and spaced from the inner magnetic circuit portion to form the first magnetic gap; and
an outer magnetic circuit portion disposed around and spaced from the intermediate magnetic circuit portion to form the second magnetic gap.
In an embodiment of the present invention, the inner magnetic path portion includes a first magnetic conductive plate, a first magnet, and a second magnetic conductive plate; the first magnet is clamped between the first magnetic conduction plate and the second magnetic conduction plate, and the outer edge of the second magnetic conduction plate extends outwards;
the middle magnetic circuit part comprises a second magnet and a third magnetic conductive plate; the second magnet is overlapped on the surface of the second magnetic conduction plate, which is provided with the first magnet, is arranged outside the first magnet in a surrounding manner along the circumferential direction of the second magnetic conduction plate, and is arranged at intervals with the first magnet; the third magnetic conduction plate is stacked on the surface of the second magnet, which is back to the second magnetic conduction plate, the inner edge of the third magnetic conduction plate is spaced from the outer edge of the first magnetic conduction plate to form the first magnetic gap, and the outer edge of the third magnetic conduction plate extends outwards;
the outer magnetic circuit part comprises a third magnet and a fourth magnetic conduction plate; the third magnet is overlapped on the surface of the third magnetic conduction plate, which is provided with the second magnet, is arranged outside the second magnet in a surrounding manner along the circumferential direction of the third magnetic conduction plate, and is arranged at intervals with the second magnet; the fourth magnetic conduction plate is stacked on the surface of the third magnet, which is back to the third magnetic conduction plate, and the inner edge of the fourth magnetic conduction plate is spaced from the outer edge of the second magnetic conduction plate to form the second magnetic gap.
In one embodiment of the invention, the basin stand comprises a barrel body, wherein the barrel body is provided with a first end and a second end, and the first end and the second end are both arranged in an opening way;
the magnetic circuit system is installed in the cylinder body part, the first magnetic gap is arranged towards the opening of the first end, and the second magnetic gap is arranged towards the opening of the second end;
the first diaphragm cover is arranged at the first end, and the second diaphragm cover is arranged at the second end.
In an embodiment of the present invention, a first back cavity is formed by enclosing the first diaphragm, the magnetic circuit system, and the barrel portion, and a first pressure relief hole communicated with the first back cavity is opened at the first end;
and/or the second diaphragm, the magnetic circuit system and the barrel body part enclose to form a second rear cavity, and the second end is provided with a second pressure relief hole communicated with the second rear cavity.
In an embodiment of the invention, when the first end is provided with a first pressure relief hole communicated with the first rear cavity, a mesh cloth or a waterproof breathable film is arranged at the first pressure relief hole;
when the second end is provided with a second pressure relief hole communicated with the second rear cavity, mesh cloth or a waterproof breathable film is arranged at the second pressure relief hole.
In an embodiment of the present invention, the speaker further includes a first cover, the first cover is disposed at the first end, and forms a first front cavity by enclosing with the first diaphragm and the barrel portion, and the first end is provided with a first sound hole communicated with the first front cavity;
the loudspeaker further comprises a second cover body, the second cover body is covered on the second end and forms a second front cavity in a surrounding mode with the second vibrating diaphragm and the barrel body, and the second end is provided with a second sound hole communicated with the second front cavity.
In an embodiment of the present invention, the first sound hole and the second sound hole are disposed in the same direction.
In an embodiment of the present invention, a mesh is disposed at the first sound hole;
and/or mesh cloth is arranged at the second sound hole.
To achieve the above object, an embodiment of the present invention further provides an electronic device, including a speaker, including:
a basin stand;
a magnetic circuit system installed in the tub stand and formed with a first magnetic gap and a second magnetic gap isolated from each other, the first magnetic gap and the second magnetic gap being open in opposite directions;
the first vibration system is provided with a first vibrating diaphragm and a first voice coil, the first vibrating diaphragm is arranged on the basin frame in a covering mode and is arranged opposite to the first magnetic gap, one end of the first voice coil is connected to the first vibrating diaphragm, and the other end of the first voice coil is inserted into the first magnetic gap; and
the second vibration system is provided with a second vibrating diaphragm and a second voice coil, the second vibrating diaphragm cover is arranged on the basin frame and is opposite to the second magnetic gap, and one end of the second voice coil is connected with the second vibrating diaphragm and the other end of the second voice coil is inserted into the second magnetic gap.
In an embodiment of the invention, the electronic device further includes a frequency divider, and the first vibration system and the second vibration system of the speaker are electrically connected to the frequency divider.
The technical scheme of the invention is equivalent to providing a novel loudspeaker scheme which has separated high and low frequencies and shares a set of magnetic circuit system, and the novel loudspeaker scheme is not limited to the shape of the magnetic circuit system and can be in various forms such as round, rectangular, runway-shaped and the like. The novel loudspeaker scheme is characterized in that a high-frequency vibration system (such as a first vibration system) and a low-frequency vibration system (such as a second vibration system) are separated, the high-frequency vibration system and the low-frequency vibration system share one set of magnetic circuit system to drive, but a front cavity and a rear cavity of the high-frequency system are independent from a front cavity and a rear cavity of the low-frequency system respectively and do not influence each other, so that sound wave radiation of the high-frequency system and sound wave radiation of the low-frequency system are independent from each other and do not influence each other, and pure high-frequency sound signals and low-frequency sound signals can be provided. Therefore, the requirements of various small electronic devices on tone quality can be better met, and the requirements of the small electronic devices on tone quality which need to have good high frequency and good low frequency are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a speaker according to an embodiment of the present invention;
FIG. 2 is an exploded view of the speaker of FIG. 1;
fig. 3 is a cross-sectional view of the loudspeaker of fig. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In view of the technical problems mentioned in the background art, the present invention provides a speaker, which is designed to meet the requirements of low frequency and high frequency of sound quality.
It is understood that the speaker proposed by the present invention can be applied to various electronic devices, such as: a mobile phone, a tablet computer, a television, a display, a notebook computer, a Digital photo frame, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (Moving Picture Experts Group Audio Layer III) player, an MP4 (Moving Picture Experts Group Audio Layer IV) player, a wearable device, a navigator, a handheld game console, a virtual reality device, an augmented reality device, and the like.
The following description will be made of a specific structure of the speaker according to the present invention in a specific embodiment:
as shown in fig. 1 to 3, in an embodiment of the speaker 100 of the present invention, the speaker 100 includes:
a basin stand 10;
a magnetic circuit system 20, the magnetic circuit system 20 being installed in the basin stand 10 and being formed with a first magnetic gap 20a and a second magnetic gap 20b that are isolated from each other, the first magnetic gap 20a and the second magnetic gap 20b being opened in opposite directions;
the first vibration system 30 is provided with a first diaphragm 31 and a first voice coil 32, the first diaphragm 31 is covered on the basin frame 10 and is arranged opposite to the first magnetic gap 20a, one end of the first voice coil 32 is connected to the first diaphragm 31, and the other end of the first voice coil is inserted into the first magnetic gap 20 a; and
and the second vibration system 40, the second vibration system 40 has a second diaphragm 41 and a second voice coil 42, the second diaphragm 41 covers the basin frame 10, and is arranged opposite to the second magnetic gap 20b, and one end of the second voice coil 42 is connected to the second diaphragm 41, and the other end of the second voice coil is inserted into the second magnetic gap 20 b.
In this embodiment, the speaker 100 is horizontally disposed; the first vibration system 30 is located above the magnetic circuit system 20, and a voice coil (i.e., a first voice coil 32) of the first vibration system 30 is vertically arranged and inserted into the first magnetic gap 20a of the magnetic circuit system 20; the second vibration system 40 is located below the magnetic circuit system 20, and a voice coil (i.e., a second voice coil 42) of the second vibration system 40 is vertically disposed and inserted in the second magnetic gap 20b of the magnetic circuit system 20. The first vibration system 30 and the second vibration system 40 can be used to receive signals of different frequency bands, so as to generate sound waves of different frequency bands, for example: the first vibration system 30 may be configured to receive a high frequency signal and radiate high frequency sound waves outward, and the second vibration system 40 may be configured to receive a low frequency signal and radiate low frequency sound waves outward.
At this time, it can be understood that the technical solution of the present embodiment is equivalent to providing a new speaker 100 solution with separated high and low frequencies and sharing a set of magnetic circuit system 20, and the new speaker 100 solution is not limited to the shape of the magnetic circuit system 20, and may be in various forms such as a circle, a rectangle, a racetrack, and the like. The novel loudspeaker 100 is characterized in that a high-frequency vibration system (such as the first vibration system 30) and a low-frequency vibration system (such as the second vibration system 40) are separated, the high-frequency vibration system and the low-frequency vibration system share one set of magnetic circuit system 20 for driving, but a front cavity and a rear cavity of the high-frequency system are independent from a front cavity and a rear cavity of the low-frequency system respectively and do not influence each other, so that sound wave radiation of the high-frequency system and sound wave radiation of the low-frequency system are independent from each other and do not influence each other, and pure high-frequency sound signals and pure low-frequency sound signals can be provided. Therefore, the requirements of various small electronic devices on tone quality can be better met, and the requirements of the small electronic devices on tone quality which need to have good high frequency and good low frequency are met.
In other words, the new speaker 100 solution provided by the present embodiment has the following advantages:
(1) the design of separating the high-frequency system from the low-frequency system can better meet the requirements of the acoustic equipment on high frequency and low frequency, and can better restore the tone quality of the high frequency and the low frequency, thereby solving the problem of insufficient acoustic design of the high frequency and the low frequency caused by a single loudspeaker 100 system in the prior art;
(2) if a single speaker 100 system in the prior art is designed to have both high and low frequency sound effects, the sound power will increase and the amplitude will increase. In this way, the reliability risks of the acoustic device are greatly increased, for example: the conditions of wire breakage of the voice coil, membrane rupture of the diaphragm and the like sometimes occur. The novel loudspeaker 100 scheme provided by the embodiment adopts a design of separating a high-frequency system and a low-frequency system, and can overcome the troubles caused by power and amplitude improvement compared with a single loudspeaker 100 system;
(3) the front cavity and the back cavity of the high-frequency system and the front cavity and the back cavity of the low-frequency system are independent and do not influence each other, and acoustic energy radiation cannot be weakened due to the phase problem of the acoustic radiation.
As shown in fig. 1 to 3, in an embodiment of the speaker 100 of the present invention, the magnetic circuit system 20 includes:
an inner magnetic path portion 21;
an intermediate magnetic path portion 22, the intermediate magnetic path portion 22 being enclosed outside the inner magnetic path portion 21 and spaced apart from the inner magnetic path portion 21 to form the first magnetic gap 20 a; and
an outer magnetic circuit portion 23, the outer magnetic circuit portion 23 being disposed around the middle magnetic circuit portion 22 and spaced apart from the middle magnetic circuit portion 22 to form the second magnetic gap 20 b.
It can be understood that, under the design of the present embodiment, the first magnetic gap 20a and the second magnetic gap 20b are both arranged in a ring shape, and the arrangement of the first magnetic gap 20a and the second magnetic gap 20b is equivalent to a form of sleeving an "outer ring" on the outer side of the "inner ring", that is, the two magnetic gaps are "nested" in the horizontal direction; thus, the width of the magnetic circuit system 20 can be fully utilized to reduce the height of the magnetic circuit system 20, so that the thickness of the loudspeaker 100 can be reduced, and the loudspeaker can be better adapted to various small electronic devices.
As shown in fig. 1 to 3, in an embodiment of the speaker 100 of the present invention, the inner magnetic path portion 21 includes a first magnetic conductive plate 211, a first magnet 212, and a second magnetic conductive plate 213; the first magnet 212 is sandwiched between the first magnetic conductive plate 211 and the second magnetic conductive plate 213, and an outer edge of the second magnetic conductive plate 213 extends outward;
the intermediate magnetic circuit portion 22 comprises a second magnet 221 and a third magnetically permeable plate 222; the second magnet 221 is stacked on the surface of the second magnetic conduction plate 213, where the first magnet 212 is disposed, and is disposed around the first magnet 212 along the circumferential direction of the second magnetic conduction plate 213, and is spaced from the first magnet 212; the third magnetic conductive plate 222 is stacked on the surface of the second magnet 221, which faces away from the second magnetic conductive plate 213, and has an inner edge spaced from the outer edge of the first magnetic conductive plate 211 to form the first magnetic gap 20a, and the outer edge of the third magnetic conductive plate 222 extends outward;
the outer magnetic circuit portion 23 includes a third magnet 231 and a fourth magnetic conductive plate 232; the third magnet 231 is stacked on the surface of the third magnetic conductive plate 222, where the second magnet 221 is disposed, and is arranged around the second magnet 221 along the circumferential direction of the third magnetic conductive plate 222, and is spaced from the second magnet 221; the fourth magnetic conducting plate 232 is stacked on the surface of the third magnet 231 facing away from the third magnetic conducting plate 222, and the inner edge of the fourth magnetic conducting plate is spaced from the outer edge of the second magnetic conducting plate 213 to form the second magnetic gap 20 b.
It can be understood that, under the design of the present embodiment, the inner magnetic path portion 21 formed by the first magnetic conductive plate 211, the first magnet 212 and the second magnetic conductive plate 213 is located inside the first magnetic gap 20a, and can provide a powerful magnetic field environment for the first voice coil 32 in the first magnetic gap 20 a; meanwhile, the outer side of the first magnetic gap 20a is the middle magnetic circuit part 22 formed by the second magnet 221 and the third magnetic conduction plate 222, which can also provide a powerful magnetic field environment for the first voice coil 32 in the first magnetic gap 20 a; thus, the first voice coil 32 inserted in the first magnetic gap 20a can be supported by the multiple magnets, so as to avoid the problems of insufficient driving capability, high distortion, poor acoustic performance and the like caused by driving with a single magnet, and improve the acoustic performance of the first vibration system 30.
Similarly, the inner side of the second magnetic gap 20b is the middle magnetic circuit portion 22 formed by the second magnet 221 and the third magnetic conductive plate 222, which can provide a powerful magnetic field environment for the second voice coil 42 in the second magnetic gap 20 b; meanwhile, the outer side of the second magnetic gap 20b is the outer magnetic circuit portion 23 formed by the third magnet 231 and the fourth magnetic conductive plate 232, which can also provide a powerful magnetic field environment for the second voice coil 42 in the second magnetic gap 20 b; thus, the second voice coil 42 inserted in the second magnetic gap 20b can be supported by the multiple magnets, so as to avoid the problems of insufficient driving capability, high distortion, poor acoustic performance and the like caused by driving with a single magnet, and improve the acoustic performance of the second vibration system 40.
That is, the present embodiment performs a multi-magnet layout on the magnetic circuit system 20 to enhance the driving of the high-frequency system and the low-frequency system, thereby avoiding the problems of insufficient driving capability, high distortion and poor acoustic performance caused by the driving of multiple systems by a single magnet, and improving the acoustic performance of the speaker 100.
Moreover, it can be understood that, under the design of the present embodiment, the isolation between the first magnetic gap 20a and the second magnetic gap 20b is realized by the second magnetic conductive plate 213, the second magnet 221, and the third magnetic conductive plate 222, and the flat plate structures of the second magnetic conductive plate 213 and the third magnetic conductive plate 222 can make the matching between the components tighter and the isolation better, thereby better ensuring the independence of the two back cavities, and avoiding the problem that the acoustic energy radiation is weakened due to the phase problem of the acoustic radiation.
As shown in fig. 1 to 3, in an embodiment of the speaker 100 of the present invention, the frame 10 includes a cylindrical body having a first end 11 and a second end 12, and both the first end 11 and the second end 12 are open;
the magnetic circuit system 20 is installed in the cylinder part, the first magnetic gap 20a is arranged towards the opening of the first end 11, and the second magnetic gap 20b is arranged towards the opening of the second end 12;
the first diaphragm 31 is covered at the first end 11, and the second diaphragm 41 is covered at the second end 12.
In this embodiment, the barrel is vertically disposed with its first end 11 facing upward and its second end 12 facing downward. The magnetic circuit system 20 is arranged in the cylinder body part and is positioned in the middle of the cylinder body part; the first vibration system 30 is installed in the cylinder body part and is positioned at the upper part of the cylinder body part; the second vibration system 40 is installed in the cylinder part and is located at a lower part of the cylinder part.
It can be understood that, since the first vibration system 30 and the second vibration system 40 need to respond optimally to signals of different frequency bands, the radiation area of the first vibration system 30 and the radiation area of the second vibration system 40 may be different, for example: in the present embodiment, the circumferential surrounding area of the diaphragm of the first vibration system 30 (i.e., the first diaphragm 31) is smaller than the circumferential surrounding area of the diaphragm of the second vibration system 40 (i.e., the second diaphragm 41).
At this time, the shape of the inner sidewall of the cylindrical portion is adapted to the sizes of the first diaphragm 31 and the second diaphragm 41, for example: in this embodiment, a first step structure 113 is formed on the inner sidewall of the barrel at the cover of the first diaphragm 31, so that the outer edge of the first diaphragm 31 can be connected and fixed (specifically, the fixation can be realized by using a bonding method, etc.); meanwhile, a second step structure 123 is formed on the inner sidewall of the barrel at the cover of the second diaphragm 41, so that the outer edge of the second diaphragm 41 is connected and fixed (specifically, the fixing may be achieved by using a bonding method, etc.).
On the other hand, for the position of the magnetic circuit system 20, the inner side wall of the cylindrical body may be provided in a straight wall form, and the connection between the parts of the magnetic circuit system 20, and the magnetic circuit system 20 and the cylindrical body may be achieved by bonding, for example.
Understandably, under the design of this embodiment, the frame 10 accommodates and fixes the magnetic circuit system 20, the first vibration system 30 and the second vibration system 40 through the barrel portion thereof, so that the loudspeaker 100 has better integrity and higher reliability, which is not only convenient for the installation and fixation of each component and improves the production efficiency, but also beneficial to the stable cooperation of the magnetic circuit system 20 and the first vibration system 30 and the second vibration system 40 and improves the acoustic performance of the loudspeaker 100.
As shown in fig. 1 to fig. 3, in an embodiment of the speaker 100 of the present invention, a first back cavity 30a is formed by enclosing the first diaphragm 31, the magnetic circuit system 20, and the barrel, and the first end 11 is opened with a first pressure relief hole 111 communicating with the first back cavity 30 a;
a second back cavity 40a is formed by enclosing the second diaphragm 41, the magnetic circuit system 20 and the barrel portion, and a second pressure relief hole 121 communicating with the second back cavity 40a is opened at the second end 12.
Understandably, under the design of the embodiment, the two back cavities not only respectively keep the independence of the two back cavities, but also avoid the problem that the sound energy radiation is weakened due to the phase problem of the sound radiation; the side pressure relief holes are respectively utilized to realize communication with the outside, so that the resistance of the corresponding vibrating diaphragm during vibration is reduced, and the effect of adjusting the acoustic performance of the corresponding vibration system is achieved; in addition, the pressure relief hole can be used for expanding the capacity to a certain degree, so that the acoustic performance of the corresponding vibration system can be adjusted.
Further, it can be seen that, in the design of the present embodiment, not only the low-frequency vibration system (i.e., second vibration system 40) is provided with the pressure relief hole (i.e., second pressure relief hole 121), but also the high-frequency vibration system (i.e., first vibration system 30) is also provided with the pressure relief hole (i.e., first pressure relief hole 111). However, it should be understood that in other embodiments, the dither system may not be equipped with a pressure relief vent when the dither system is designed such that it does not require a large amplitude, for example, the volume of the cavity itself is sufficient for it to vibrate well. Similarly, a low frequency vibration system may not be equipped with a pressure relief vent when the design of the low frequency vibration system does not require a large amplitude, or for example, the volume of the back volume itself is sufficient for it to vibrate well. The method can be implemented reasonably by those skilled in the art, and is not described in detail herein.
In an embodiment of the speaker 100 of the present invention, a mesh or a waterproof and breathable film is disposed at the first pressure relief hole 111. Understandably, the mesh cloth or the waterproof and breathable film can prevent the invasion of foreign matters, and plays a certain waterproof and dustproof role, so that the reliability of the loudspeaker 100 is improved. Furthermore, it can be understood that the mesh cloth or the waterproof and breathable film can be fixed by bonding, hot-melt connection, welding (for example, the periphery of the mesh cloth is fixed to the fixing ring, and then the fixing ring is welded to the first sound hole 112), snap connection (for example, the periphery of the mesh cloth is fixed to the fixing ring, and then the fixing ring is snapped to the first sound hole 112), and the like.
In an embodiment of the speaker 100 of the present invention, a mesh or a waterproof and breathable film is disposed at the second pressure relief hole 121. Understandably, the mesh cloth or the waterproof and breathable film can prevent the invasion of foreign matters, and plays a certain waterproof and dustproof role, so that the reliability of the loudspeaker 100 is improved. Furthermore, it can be understood that the mesh cloth or the waterproof and breathable film can be fixed by bonding, hot-melt connection, welding (for example, the periphery of the mesh cloth is fixed to the fixing ring, and then the fixing ring is welded to the first sound hole 112), snap connection (for example, the periphery of the mesh cloth is fixed to the fixing ring, and then the fixing ring is snapped to the first sound hole 112), and the like.
As shown in fig. 1 to fig. 3, in an embodiment of the speaker 100 of the present invention, the speaker 100 further includes a first cover 50, the first cover 50 is disposed on the first end 11, and forms a first front cavity 30b by enclosing with the first diaphragm 31 and the barrel portion, the first end 11 is opened with a first sound hole 112 communicating with the first front cavity 30 b;
the loudspeaker 100 further includes a second cover 60, the second cover 60 is disposed on the second end 12, and forms a second front cavity 40b with the second diaphragm 41 and the barrel portion, and the second end 12 is opened with a second sound hole 122 communicating with the second front cavity 40 b.
It can be understood that, under the design of the present embodiment, the sound waves originally radiated in two directions away from each other can be guided out from the side of the speaker 100 at this time; thus, the side sound emitting effect of the loudspeaker 100 is realized, the width direction of the loudspeaker 100 is fully utilized, the occupation of the thickness direction of the loudspeaker 100 is reduced, the thickness of the loudspeaker 100 is reduced, and the loudspeaker 100 can be better adapted to various small electronic devices.
It should be noted that, in the present embodiment, the first cover 50 is accommodated in the first end 11 of the barrel, and presses the outer edge of the first diaphragm 31 against the first step structure 113, so as to improve the stability and reliability of the first diaphragm 31. Similarly, the second cover 60 is accommodated in the second end 12 of the barrel, and presses the outer edge of the second diaphragm 41 against the second step structure 123, so as to improve the stability and reliability of the second diaphragm 41.
As shown in fig. 1 to 3, in an embodiment of the speaker 100 of the present invention, the first sound hole 112 and the second sound hole 122 are disposed in the same direction. Therefore, the sound waves of different frequency bands in the two sound holes can be led out only by arranging a shared channel, so that the orientation design of the loudspeaker 100 in various small electronic devices is facilitated, and the application difficulty of the loudspeaker 100 in various small electronic devices is reduced
In an embodiment of the speaker 100 of the present invention, a mesh is disposed at the first sound hole 112. Thus, the intrusion of foreign matter can be prevented, and a certain degree of waterproof and dustproof effects are achieved, so that the reliability of the speaker 100 can be improved. It is understood that the mesh may be fixed by bonding, heat-melting, welding (e.g., fixing the periphery of the mesh to the fixing ring, and then welding the fixing ring to the first sound hole 112), snap-fitting (e.g., fixing the periphery of the mesh to the fixing ring, and then snapping the fixing ring to the first sound hole 112), and the like.
In an embodiment of the speaker 100 of the present invention, a mesh is disposed at the second sound hole 122. Thus, the intrusion of foreign matter can be prevented, and a certain degree of waterproof and dustproof effects are achieved, so that the reliability of the speaker 100 can be improved. It is understood that the mesh may be fixed by bonding, heat-melting, welding (e.g., fixing the periphery of the mesh to the fixing ring, and then welding the fixing ring to the first sound hole 112), snap-fitting (e.g., fixing the periphery of the mesh to the fixing ring, and then snapping the fixing ring to the first sound hole 112), and the like.
The present invention also proposes an electronic device, which includes the loudspeaker 100 as described above, and the specific structure of the loudspeaker 100 refers to the foregoing embodiments. Since the electronic device adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by all the technical solutions of all the embodiments are achieved, and no further description is given here.
It is understood that the electronic device may be, but is not limited to, a mobile phone, a tablet computer, a television, a display, a notebook computer, a Digital photo frame, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (motion Picture Experts Group Audio Layer III) player, an MP4 (motion Picture Experts Group Audio Layer IV) player, a wearable device, a navigator, a handheld game console, a virtual reality device, an augmented reality device, etc.
As shown in fig. 1 to 3, in an embodiment of the speaker 100 of the present invention, the electronic device further includes a frequency divider, and the first vibration system 30 and the second vibration system 40 of the speaker 100 are electrically connected to the frequency divider.
It can be understood that, under the design of this embodiment, before the low frequency system and the high frequency system, the frequency divider may be used to perform frequency division processing on the signal, so that frequency division input of the signal may be achieved — the high frequency signal enters the high frequency system, the low frequency signal enters the low frequency system, so that the high frequency signal and the low frequency signal may be separated (where, at the same time, the high frequency signal and the low frequency signal may also have appropriate overlap), so that the working frequency band advantages of the high frequency system and the low frequency system are fully utilized. Therefore, the playback characteristics of different frequency bands can be more balanced under the condition that the safe operation of systems of different frequency bands is ensured and the full play of the functions is realized.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A loudspeaker, comprising:
a basin stand;
a magnetic circuit system installed in the tub stand and formed with a first magnetic gap and a second magnetic gap isolated from each other, the first magnetic gap and the second magnetic gap being open in opposite directions;
the first vibration system is provided with a first vibrating diaphragm and a first voice coil, the first vibrating diaphragm is arranged on the basin frame in a covering mode and is arranged opposite to the first magnetic gap, one end of the first voice coil is connected to the first vibrating diaphragm, and the other end of the first voice coil is inserted into the first magnetic gap; and
the second vibration system is provided with a second vibrating diaphragm and a second voice coil, the second vibrating diaphragm cover is arranged on the basin frame and is opposite to the second magnetic gap, and one end of the second voice coil is connected with the second vibrating diaphragm and the other end of the second voice coil is inserted into the second magnetic gap.
2. The loudspeaker of claim 1, wherein the magnetic circuit system comprises:
an inner magnetic path portion;
an intermediate magnetic circuit portion enclosed outside the inner magnetic circuit portion and spaced from the inner magnetic circuit portion to form the first magnetic gap; and
an outer magnetic circuit portion disposed around and spaced from the intermediate magnetic circuit portion to form the second magnetic gap.
3. The loudspeaker of claim 2, wherein the inner magnetic circuit portion includes a first magnetically permeable plate, a first magnet, and a second magnetically permeable plate; the first magnet is clamped between the first magnetic conduction plate and the second magnetic conduction plate, and the outer edge of the second magnetic conduction plate extends outwards;
the middle magnetic circuit part comprises a second magnet and a third magnetic conductive plate; the second magnet is overlapped on the surface of the second magnetic conduction plate, which is provided with the first magnet, is arranged outside the first magnet in a surrounding manner along the circumferential direction of the second magnetic conduction plate, and is arranged at intervals with the first magnet; the third magnetic conduction plate is stacked on the surface of the second magnet, which is back to the second magnetic conduction plate, the inner edge of the third magnetic conduction plate is spaced from the outer edge of the first magnetic conduction plate to form the first magnetic gap, and the outer edge of the third magnetic conduction plate extends outwards;
the outer magnetic circuit part comprises a third magnet and a fourth magnetic conduction plate; the third magnet is overlapped on the surface of the third magnetic conduction plate, which is provided with the second magnet, is arranged outside the second magnet in a surrounding manner along the circumferential direction of the third magnetic conduction plate, and is arranged at intervals with the second magnet; the fourth magnetic conduction plate is stacked on the surface of the third magnet, which is back to the third magnetic conduction plate, and the inner edge of the fourth magnetic conduction plate is spaced from the outer edge of the second magnetic conduction plate to form the second magnetic gap.
4. The loudspeaker of claim 1, wherein the frame comprises a barrel having a first end and a second end, both of the first end and the second end being open;
the magnetic circuit system is installed in the cylinder body part, the first magnetic gap is arranged towards the opening of the first end, and the second magnetic gap is arranged towards the opening of the second end;
the first diaphragm cover is arranged at the first end, and the second diaphragm cover is arranged at the second end.
5. The loudspeaker of claim 4, wherein the first diaphragm, the magnetic circuit system and the cylinder enclose a first back cavity, and the first end is provided with a first pressure relief hole communicated with the first back cavity;
and/or the second diaphragm, the magnetic circuit system and the barrel body part enclose to form a second rear cavity, and the second end is provided with a second pressure relief hole communicated with the second rear cavity.
6. The loudspeaker of claim 5, wherein when the first end is provided with a first pressure relief hole communicating with the first back cavity, a mesh or a waterproof breathable film is arranged at the first pressure relief hole;
when the second end is provided with a second pressure relief hole communicated with the second rear cavity, mesh cloth or a waterproof breathable film is arranged at the second pressure relief hole.
7. The loudspeaker of claim 4, further comprising a first cover, wherein the first cover covers the first end, and forms a first front cavity with the first diaphragm and the barrel portion, and the first end is provided with a first sound hole communicated with the first front cavity;
the loudspeaker further comprises a second cover body, the second cover body is covered on the second end and forms a second front cavity in a surrounding mode with the second vibrating diaphragm and the barrel body, and the second end is provided with a second sound hole communicated with the second front cavity.
8. The speaker of claim 7, wherein the first sound hole and the second sound hole are disposed in the same direction.
9. The loudspeaker of claim 7, wherein a mesh is disposed at the first acoustic hole;
and/or mesh cloth is arranged at the second sound hole.
10. An electronic device, characterized in that the electronic device comprises a loudspeaker according to any one of claims 1-9.
11. The electronic device of claim 10, further comprising a crossover, wherein the first and second vibration systems of the speaker are electrically connected to the crossover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111530723.9A CN114268889A (en) | 2021-12-14 | 2021-12-14 | Speaker and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111530723.9A CN114268889A (en) | 2021-12-14 | 2021-12-14 | Speaker and electronic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114268889A true CN114268889A (en) | 2022-04-01 |
Family
ID=80827658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111530723.9A Pending CN114268889A (en) | 2021-12-14 | 2021-12-14 | Speaker and electronic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114268889A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114866920A (en) * | 2022-04-29 | 2022-08-05 | 歌尔股份有限公司 | Sound production device and audio equipment |
| WO2023185412A1 (en) * | 2022-04-02 | 2023-10-05 | 歌尔股份有限公司 | Sound production module and electronic device |
| WO2023185413A1 (en) * | 2022-04-02 | 2023-10-05 | 歌尔股份有限公司 | Sound production module and terminal device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101959A (en) * | 2016-07-18 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN106535069A (en) * | 2016-11-29 | 2017-03-22 | 珠海格力电器股份有限公司 | Loudspeaker and audio equipment |
| CN109756828A (en) * | 2019-01-15 | 2019-05-14 | 歌尔股份有限公司 | Sounding device and electronic equipment |
| CN110996229A (en) * | 2019-12-09 | 2020-04-10 | 上海创功通讯技术有限公司 | Loudspeaker and electronic equipment |
| CN212752630U (en) * | 2020-08-26 | 2021-03-19 | 瑞声科技(新加坡)有限公司 | Composite loudspeaker |
| CN112738696A (en) * | 2020-12-28 | 2021-04-30 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
-
2021
- 2021-12-14 CN CN202111530723.9A patent/CN114268889A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101959A (en) * | 2016-07-18 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN106535069A (en) * | 2016-11-29 | 2017-03-22 | 珠海格力电器股份有限公司 | Loudspeaker and audio equipment |
| CN109756828A (en) * | 2019-01-15 | 2019-05-14 | 歌尔股份有限公司 | Sounding device and electronic equipment |
| CN110996229A (en) * | 2019-12-09 | 2020-04-10 | 上海创功通讯技术有限公司 | Loudspeaker and electronic equipment |
| CN212752630U (en) * | 2020-08-26 | 2021-03-19 | 瑞声科技(新加坡)有限公司 | Composite loudspeaker |
| CN112738696A (en) * | 2020-12-28 | 2021-04-30 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185412A1 (en) * | 2022-04-02 | 2023-10-05 | 歌尔股份有限公司 | Sound production module and electronic device |
| WO2023185413A1 (en) * | 2022-04-02 | 2023-10-05 | 歌尔股份有限公司 | Sound production module and terminal device |
| CN114866920A (en) * | 2022-04-29 | 2022-08-05 | 歌尔股份有限公司 | Sound production device and audio equipment |
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