CN211378238U - Asynchronous magnetic circuit structure plane vibrating diaphragm loudspeaker - Google Patents
Asynchronous magnetic circuit structure plane vibrating diaphragm loudspeaker Download PDFInfo
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- CN211378238U CN211378238U CN202020024971.0U CN202020024971U CN211378238U CN 211378238 U CN211378238 U CN 211378238U CN 202020024971 U CN202020024971 U CN 202020024971U CN 211378238 U CN211378238 U CN 211378238U
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Abstract
The utility model relates to an asynchronous magnetic circuit structure plane vibrating diaphragm speaker, go up the magnet support frame including at least one, the inboard of going up the magnet support frame is fixed with magnet group, the below of going up magnet group is equipped with first supporting mechanism and second supporting mechanism, install voice coil loudspeaker voice coil vibrating diaphragm mechanism between first supporting mechanism and the second supporting mechanism, second supporting mechanism's below further is provided with at least one lower magnet support frame, the inboard of lower magnet support frame is fixed with down magnet group, the top of going up the magnet support frame or lower magnet support frame below have at least one side to be equipped with outside intercommunication device, wherein, it uses voice coil loudspeaker voice coil vibrating diaphragm mechanism to set up for the interval relatively with lower magnet group to go up magnet group, wherein, it includes a plurality of last magnets to go up magnet group, lower magnet group includes a plurality of lower magnets, and a plurality of magnet and a plurality of go up magnet and a plurality of magnet crisscross. The utility model discloses stable in structure improves the sound production quality, optimizes speaker overall structure, realizes the volume miniaturization.
Description
Technical Field
The utility model relates to a speaker technical field especially relates to an asynchronous formula magnetic structure plane vibrating diaphragm speaker.
Background
The current earphones are mainly classified into moving coil type earphones, moving iron type earphones and electrostatic (capacitive) type earphones according to different sound production principles.
The moving-coil earphone is the most common earphone type at present, and is characterized in that a coil is fixed on a vibrating diaphragm and is arranged in a fixed magnetic field generated by a permanent magnet, and a signal passes through the coil to cut magnetic lines of force, so that the vibrating diaphragm is driven to vibrate and sound together. The advantages are that: the manufacture is relatively easy, the linearity is good, the distortion is small, and the frequency response is wide; the disadvantages are that: because the sound production vibrating diaphragm of moving coil unit is the toper structure in the earphone to when the in-process power of sound production exceeded more than 60%, because natural limitations such as vibrating diaphragm form and material, produce obvious distortion and when being close to full load power, the distortion factor can double and increase, can make sound seriously worsen.
The moving-iron earphone utilizes the electromagnet to generate an alternating magnetic field, the vibration part is suspended in front of the electromagnet by an iron sheet, and the signal changes the magnetic field of the electromagnet when passing through the electromagnet, so that the iron sheet vibrates to produce sound. The advantages are that: the service life is long, and the efficiency is high; the disadvantages are that: the high-frequency telephone receiver has the advantages of high price, large distortion, high frequency, sharp ear, narrow frequency response, complex production process and high reject ratio, and is commonly used for early telephone receivers.
The principle of the electrostatic (capacitance) earphone is that the diaphragm is in a changing electric field, the diaphragm is extremely thin and can be accurate to micron level, the diaphragm is polarized by high direct current voltage, and the electric energy required by polarization is converted by alternating current or supplied by a battery. The vibrating diaphragm hangs in the electrostatic field that is formed by two fixed metal sheets (stators), and when audio signal loaded to the stator, the electrostatic field changed, and drive vibrating diaphragm vibration drives the vibrating diaphragm sound production under the drive of electric field force. A single stator may also drive the diaphragm, but in contrast the push-pull form of a double stator is less distorted. Because the vibrating diaphragm is light and thin, the tone quality of the electrostatic earphone naturally leans to be light and transparent, and the appearance of low frequency and the thickness and the density of sound are slightly inferior; the disadvantages are that: most of the electrostatic earphones are manufactured by hands, have high reject ratio and are difficult to effectively reduce, the capacity and the manufacturing efficiency are extremely low in the process of mass production and manufacturing, large-scale commercialization is difficult, and the electrostatic earphones are an insurmountable threshold.
At present, a planar earphone is appearing on the market, which combines the advantages of both moving-coil earphones and electrostatic (capacitive) earphones, has better performance than electrostatic earphones in the low frequency aspect, and is also stronger than moving-coil earphones in the high frequency aspect. However, the existing planar earphone structure cannot realize the simultaneous combination of volume and tone quality in the actual production and manufacturing process, and the volume is difficult to be very small, generally is the volume of a headphone, and cannot realize an in-ear type earplug structure.
SUMMERY OF THE UTILITY MODEL
The purpose of the present invention is to solve at least one of the technical drawbacks.
Therefore, the utility model aims to provide an asynchronous formula magnetic structure plane vibrating diaphragm speaker has optimized foundation structure at the innovation in the manufacturing process, and stable in structure improves the sound production quality, optimizes speaker overall structure, realizes the volume miniaturization.
In order to achieve the above object, an embodiment of the present invention provides a magnetic resonance imaging apparatus including at least one upper magnet support frame, an upper magnet assembly fixed to an inner side of the upper magnet support frame, a first support mechanism and a second support mechanism arranged below the upper magnet assembly, a voice coil diaphragm mechanism installed between the first support mechanism and the second support mechanism, at least one lower magnet support frame further arranged below the second support mechanism, a lower magnet assembly fixed to an inner side of the lower magnet support frame, an external communication device arranged on at least one side of an upper side of the upper magnet support frame or a lower side of the lower magnet support frame, wherein,
the upper magnet group and the lower magnet group are oppositely arranged at intervals by taking the voice coil diaphragm mechanism as a space, wherein the upper magnet group comprises a plurality of upper magnets, the lower magnet group comprises a plurality of lower magnets, and the upper magnets and the lower magnets are arranged in a staggered manner;
the upper support frame is arranged above the upper magnet support frame, and the lower support frame is arranged below the lower magnet support frame;
a plurality of sound-transmitting holes are respectively arranged on the upper support frame and the lower support frame at intervals, and the sound-transmitting holes comprise one of the following forms:
(1) a strip-shaped sound-transmitting hole;
(2) a circular hole-shaped sound-transmitting hole;
(3) the irregular holes form sound transmission holes.
Preferably, the upper and lower magnets comprise one of the following forms:
(1) symmetrical magnetic circuit structure: the upper magnet and the lower magnet are equal in size;
(2) asymmetric magnetic circuit structure: at least one of the length, the width and the height of the upper magnet and the lower magnet is different.
In any of the above solutions, preferably, the upper magnet and the lower magnet are arranged alternately, and include one of the following forms:
(1) a plurality of gaps are formed among the upper magnets, and each gap corresponds to at least one lower magnet or is empty;
(2) a plurality of gaps are formed among the lower magnets, and each gap corresponds to at least one upper magnet or is empty.
In any one of the above schemes, preferably, the voice coil diaphragm mechanism includes a voice coil and a diaphragm, and the connection structure of the voice coil and the diaphragm includes one of the following forms:
(1) when an external communication device is arranged above the upper magnet support frame, the voice coil is arranged above the vibrating diaphragm;
(2) when an external communication device is arranged below the lower magnet support frame, the voice coil is arranged below the vibrating diaphragm;
(3) when the top of going up the magnet support frame and the below of lower magnet support frame all are equipped with outside intercommunication device, the voice coil loudspeaker voice coil sets up the upper and lower both sides at the vibrating diaphragm, just still be equipped with conducting resin between voice coil loudspeaker voice coil and the vibrating diaphragm.
In any of the above schemes, preferably, the voice coil is a planar structure, and the diaphragm is a nanoscale planar diaphragm.
In any of the above aspects, preferably, the external communication device includes a conductive metal sheet and an external communication mechanism, and the conductive metal sheet is disposed below or above and below the external communication mechanism.
In any of the above schemes, preferably, the first supporting mechanism, the second supporting mechanism, and the external communication mechanism all use PCB.
In any of the above schemes, preferably, the external communication device is connected to the voice coil diaphragm mechanism through a conduction mechanism.
In any one of the above schemes, preferably, the plurality of upper magnet support frames and the plurality of lower magnet support frames are arranged in layers, wherein the number of the upper magnet support frames is set according to the height of the upper magnet group, and the number of the upper magnet support frames is set according to the height of the upper magnet group.
In any of the above schemes, preferably, the upper magnet support frame and the lower magnet support frame are made of non-magnetic conductive metal materials.
Compared with the prior art, the utility model has the advantages and beneficial effects do:
1. go up the crisscross setting of magnet and lower magnet, thereby form asynchronous formula plane vibrating diaphragm speaker, on the basis of guaranteeing that the quality takes place for the speaker, can effectively reduce the thickness of speaker, weight, the diameter, can effectively reduce whole speaker thickness more than 30%, fully optimize the whole multilayer structure of speaker, realize the volume miniaturization, improve production efficiency, the yields improves more than 50% by a wide margin, and can reduce manufacturing cost by a wide margin, by the headphone product of original application, further reduce to being used for the ear-type earplug product, reduce production manufacturing cost and complicated production manufacturing flow by a wide margin, economic nature is good.
2. The voice coil diaphragm mechanism is integrally of a plane structure and is arranged between the upper magnet group and the lower magnet group, so that the voice coil diaphragm mechanism is in an even magnetic field environment, the vibration consistency of the voice coil diaphragm mechanism can be ensured, the distortion degree of an earphone or a sound loudspeaker is reduced to 0.1-1%, and the sound production quality is obviously improved.
The following describes the asynchronous magnetic structure planar diaphragm loudspeaker with reference to the attached drawings.
Drawings
Fig. 1 is a schematic structural view of the asynchronous magnetic circuit structure planar diaphragm loudspeaker of the present invention;
fig. 2 is a schematic diagram of a symmetrical magnetic circuit structure in the asynchronous magnetic circuit structure planar diaphragm loudspeaker of the present invention;
fig. 3 is a schematic diagram of an asymmetric magnetic structure in the asynchronous magnetic structure planar diaphragm speaker of the present invention;
fig. 4 is a schematic diagram of the conduction mechanism in the asynchronous magnetic circuit structure planar diaphragm loudspeaker of the present invention being set as the thimble mechanism;
fig. 5 is a schematic diagram of a conduction mechanism in the asynchronous magnetic circuit structure planar diaphragm loudspeaker of the present invention, which is a spring mechanism;
fig. 6 is a schematic diagram of a conduction mechanism in the asynchronous magnetic circuit structure planar diaphragm speaker of the present invention being a rivet and thimble mechanism;
fig. 7 is a schematic view of a conduction mechanism in the asynchronous magnetic circuit structure planar diaphragm loudspeaker of the present invention being a rivet spring mechanism;
wherein: 1. a first upper magnet support; 2. a second upper magnet support; 3. a first support mechanism; 4. a voice coil diaphragm mechanism; 5. a second support mechanism; 6. a first lower magnet support; 7. a second lower magnet support; 8. an external communication mechanism; 9. an upper magnet group; 10. a lower magnet group; 11. a conductive metal sheet; 12. a spring mechanism; 121. a first insulating sleeve; 122. a first positive metal conductive spring; 123. a first negative metal conductive spring; 13. a thimble mechanism; 131. a second insulating sleeve; 132. a positive conductive metal tube; 133. a negative conductive metal tube; 134. a second positive metal conductive spring; 135. a positive metal conductive contact; 136. a second negative metal conductive spring; 137. a negative metal conductive contact; 14. a rivet thimble mechanism; 15. a rivet spring mechanism; 16. riveting; 17. an upper support frame; 18. and a lower support frame.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 3, the present invention provides an asynchronous magnetic circuit structure planar diaphragm loudspeaker, comprising at least one upper magnet support frame, an upper magnet assembly 9 fixed on the inner side of the upper magnet support frame, a first support mechanism 3 and a second support mechanism 5 arranged below the upper magnet assembly 9, a voice coil diaphragm mechanism 4 installed between the first support mechanism 3 and the second support mechanism 5, at least one lower magnet support frame further arranged below the second support mechanism 5, a lower magnet assembly 10 fixed on the inner side of the lower magnet support frame, an external communication device arranged on at least one side of the upper magnet support frame or the lower magnet support frame, wherein,
the upper magnet group 9 and the lower magnet group 10 are oppositely arranged by taking the voice coil diaphragm mechanism 4 as an interval, wherein the upper magnet group 9 comprises a plurality of upper magnets, the lower magnet group 10 comprises a plurality of lower magnets, and the plurality of upper magnets and the plurality of lower magnets are arranged in a staggered manner.
The magnetic flux-switching device further comprises an upper support frame 17 and a lower support frame 18, wherein the upper support frame 17 is arranged above the upper magnet support frame, and the lower support frame 18 is arranged below the lower magnet support frame. The upper support frame 17 and the lower support frame 18 are made of a magnetic conductive metal material or a non-magnetic conductive metal material.
Through being equipped with upper bracket 17 that has the magnetic conduction metal material, lower carriage 18, upper bracket 17 and lower carriage 18 are on the basis that has the support magnet group, because upper bracket 17 and lower carriage 18 itself have the magnetic conductivity, when the flat vibrating diaphragm speaker was circular telegram with the outside, the support frame can concentrate the collection with the magnetic flux that the magnet group was dispersed, prevent that the magnetic flux from dispersing, pass back the magnetic flux of retrieving to the magnet group again, form powerful annular energy field from this, promote magnetic field intensity and electromagnetic induction efficiency greatly, make and produce the power, unanimous impetus, guarantee that voice coil loudspeaker voice coil vibrating diaphragm mechanism 4 is by even unanimous vibration. Overflowing magnetic flux is effectively recovered and managed in a limited space and is effectively collected and reflowed to the closed magnetic field, so that the accurate control capability of the vibration of the voice coil diaphragm mechanism 4 in the closed magnetic field is further effectively enhanced, and the sound production quality is improved.
Further, the upper and lower magnets comprise one of the following forms:
(1) symmetrical magnetic circuit structure: the upper magnet and the lower magnet are equal in size;
(2) asymmetric magnetic circuit structure: the upper magnet and the lower magnet have different sizes, and specifically comprise one of the following forms:
(21) the upper magnet and the lower magnet are the same in length, and unequal in width and height;
(22) the upper magnet and the lower magnet have the same width and unequal length and height;
(23) the upper magnet and the lower magnet are the same in height, and unequal in width and length;
(24) the upper magnet and the lower magnet have the same length and width and unequal height;
(25) the upper magnet and the lower magnet are the same in length and height and unequal in width;
(26) the upper magnet and the lower magnet are the same in width and height and unequal in length.
Still further, the upper and lower magnets are staggered, including one of the following:
(1) a plurality of gaps are formed among the upper magnets, and each gap corresponds to at least one lower magnet or is empty;
(2) a plurality of gaps are formed between the lower magnets, and each gap corresponds to at least one upper magnet or is empty.
Wherein, the gaps between the adjacent upper magnets or the lower magnets can be equal or unequal. That is, the gaps d between adjacent magnets may be equal or different, for example, the gap between the first magnet and the second magnet in the upper magnet group 9 may be larger than the gap between the second magnet and the third magnet, and it is inferred that the gaps between the lower magnet groups 10 may also be different, all falling within the scope of the present application.
Further, voice coil loudspeaker voice coil vibrating diaphragm mechanism 4 includes voice coil loudspeaker voice coil, vibrating diaphragm, and the connection structure of voice coil loudspeaker voice coil and vibrating diaphragm includes one of following form:
(1) when an external communication device is arranged above the upper magnet support frame, the voice coil is arranged above the vibrating diaphragm;
(2) when the external communication device is arranged below the lower magnet support frame, the voice coil is arranged below the vibrating diaphragm;
(3) when the top of going up the magnet support frame and the below of lower magnet support frame all were equipped with outside intercommunication device, the voice coil loudspeaker voice coil setting was in the upper and lower both sides of vibrating diaphragm, and still was equipped with the conducting resin between voice coil loudspeaker voice coil and the vibrating diaphragm, and the conducting resin is used for realizing switching on between voice coil loudspeaker voice coil and the vibrating diaphragm.
Wherein, the voice coil is set to a plane structure, and the vibrating diaphragm adopts a nano-scale plane vibrating diaphragm.
Further, be connected through conduction mechanism between outside intercommunication device and the voice coil loudspeaker voice coil vibrating diaphragm mechanism 4, conduction mechanism is used for realizing switching on between voice coil loudspeaker voice coil vibrating diaphragm mechanism 4 and the outside intercommunication device, and wherein, conduction mechanism includes one of following form:
(1) a thimble mechanism 13; (as shown in FIG. 4)
(2) A spring mechanism 12; (as shown in FIG. 5)
(3) A rivet ejecting pin mechanism 14; (as shown in FIG. 6)
(4) A rivet spring mechanism 15. (as shown in FIG. 7)
Furthermore, in order to fix the utility model discloses asynchronous magnetic structure plane vibrating diaphragm speaker's multilayer structure can adopt the screw, bordure, the mode of glue, realizes multilayer structure's fixed connection to guarantee multilayer structure's overall structure stability.
Still further, the external communication device comprises a conductive metal sheet 11 and the external communication mechanism 8, wherein the conductive metal sheet 11 is arranged below or above and below the external communication mechanism 8. Specifically, when the conduction mechanism adopts the thimble mechanism 13 or the rivet thimble mechanism 14, the conductive metal sheet 11 is arranged outside the external communication mechanism 8; when the conduction mechanism employs the spring mechanism 12 or the rivet spring mechanism 15, the conductive metal pieces 11 are disposed on the upper and lower sides of the external communication mechanism 8.
The spring mechanism 12 includes a first insulating sleeve 121, a first positive metal conductive spring 122, and a first negative metal conductive spring 123, the first insulating sleeve 121 is disposed on two sides of the voice coil diaphragm mechanism 4, and is disposed between the voice coil diaphragm mechanism 4 and the external communication device, the first positive metal conductive spring 122 is disposed in the first insulating sleeve 121 on one side, the first negative metal conductive spring 123 is disposed in the first insulating sleeve 121 on the other side, and two ends of the first positive metal conductive spring 122 and the first negative metal conductive spring 123 are respectively abutted to the voice coil diaphragm mechanism 4 and the external communication device.
The rivet spring mechanism 15 is, on the basis of the spring mechanism 12, riveted and fixed with the voice coil diaphragm mechanism 4 by a rivet 16 through the first support mechanism 3 or the second support mechanism 5, and the first positive electrode metal conductive spring 122 and the first negative electrode metal conductive spring 123 are abutted against the rivet 16.
The thimble mechanism 13 includes a second insulating sleeve 131, a positive conductive metal tube 132, and a negative conductive metal tube 133, the second insulating sleeve 131 is disposed on both sides of the voice coil diaphragm mechanism 4 and disposed between the voice coil diaphragm mechanism 4 and an external communication device, the positive conductive metal tube 132 and the negative conductive metal tube 133 respectively penetrate the external communication device and are inserted into the second insulating sleeve 131, a second positive conductive metal spring 134 and a positive conductive metal contact 135 are further disposed in the positive conductive metal tube 132, one end of the positive conductive metal contact 135 abuts against the voice coil diaphragm mechanism 4, the other end of the positive conductive metal contact 135 abuts against one end of the second positive conductive metal spring 134, the other end of the second positive conductive metal spring 134 abuts against the positive conductive metal tube 132, the negative conductive metal tube 133 is further disposed with a second negative conductive metal spring 136 and a negative conductive metal contact 137, one end of the negative metal conductive contact 137 is abutted to the voice coil diaphragm mechanism 4, the other end of the negative metal conductive contact 137 is abutted to one end of the second negative metal conductive spring 136, and the other end of the second negative metal conductive spring 136 is abutted to the negative conductive metal tube 133.
The rivet and thimble mechanism 14 is configured such that, on the basis of the thimble mechanism 13, the first support mechanism 3 or the second support mechanism 5 is riveted and fixed to the voice coil diaphragm mechanism 4 by a rivet 16, and the positive metal conductive contact 135 and the negative metal conductive contact 137 are abutted against the rivet 16.
Further, the first supporting mechanism 3, the second supporting mechanism 5 and the external communicating mechanism 8 all adopt a PCB. The first supporting mechanism 3 and the second supporting mechanism 5 are used for supporting the voice coil diaphragm mechanism 4, and the external communicating mechanism 8 is used for communicating with the outside to transmit signals, that is, the external communicating mechanism 8 plays a role in transmitting signals to an external device.
Further, a plurality of upper magnet support frames and lower magnet support frames are arranged in a layered manner, wherein the number of the upper magnet support frames is set according to the height of the upper magnet assembly 9, and the number of the lower magnet support frames is set according to the height of the lower magnet assembly 10. That is, an upper magnet support frame and a lower magnet support frame are provided in multiple layers according to the height of the magnet in practical use. Because the upper magnet support frame and the lower magnet support frame adopt the layering mechanisms, flexible configuration can be conveniently carried out according to needs, and waste caused by non-adaption due to a traditional fixed height support is avoided. In the present embodiment, taking fig. 1 as an example, two upper magnet support frames and two lower magnet support frames are provided, namely a first upper magnet support frame 1 and a second upper magnet support frame 2, and a first lower magnet support frame 6 and a second lower magnet support frame 7.
Furthermore, the upper magnet support frame and the lower magnet support frame are made of non-magnetic conductive metal materials.
Further, the number of the upper magnets and the lower magnets is set to be 1-20, and the number of the upper magnets and the lower magnets may be set to be different or equal. It should be noted that the number of the upper and lower magnets is only for illustrative purpose, and not for limiting the present invention. The utility model provides a quantity of upper and lower magnet can set up as required.
A plurality of sound transmission holes are respectively arranged on the upper support frame 17 and the lower support frame 18 at intervals, and the sound transmission holes comprise one of the following forms:
(1) a strip-shaped sound-transmitting hole;
(2) a circular hole-shaped sound-transmitting hole;
(3) the irregular holes form sound transmission holes.
The size of each sound-transmitting hole is set according to the high, medium and low frequency density of the sound cavity required to be adjusted. The sound-transmitting holes are used for realizing penetration and return of magnetic flux.
The utility model discloses following beneficial effect has:
1. go up the crisscross setting of magnet and lower magnet, thereby form asynchronous formula plane vibrating diaphragm speaker, on the basis of guaranteeing that the quality takes place for the speaker, can effectively reduce the thickness of speaker, weight, the diameter, can effectively reduce whole speaker thickness more than 30%, fully optimize the whole multilayer structure of speaker, realize the volume miniaturization, improve production efficiency, the yields improves more than 50% by a wide margin, and can reduce manufacturing cost by a wide margin, by the headphone product of original application, further reduce to being used for the ear-type earplug product, reduce production manufacturing cost and complicated production manufacturing flow by a wide margin, economic nature is good.
2. The voice coil diaphragm mechanism 4 is of a plane structure as a whole and is arranged between the upper magnet group 9 and the lower magnet group 10, so that the voice coil diaphragm mechanism 4 is in a uniform magnetic field environment, the vibration consistency of the voice coil diaphragm mechanism 4 can be ensured, the distortion degree of an earphone or a sound loudspeaker is reduced to 0.1-1% (the distortion degree of a moving coil is 1% -3%, and the distortion degree of a moving iron is 3% -5%), the distortion degree is the most important parameter of the earphone and the sound, the sensitivity and perception of human auditory sense to the distortion degree, when the distortion degree of the sound of the earphone or the sound exceeds 1%, a listener feels bad sound or feels bad sound, when the distortion degree exceeds 2%, the listener feels direct and obviously feels turbid sound, the musical instrument is unclear, when the listening time exceeds 30 minutes, the feeling of dizziness starts to occur, and if the distortion degree can be controlled below 1%, theoretically, people can not hear the turbid sound, and can continuously listen for 1-2 hours without generating uncomfortable feeling caused by high degree of distortion of the sound when listening to music.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides an asynchronous formula magnetic structure plane vibrating diaphragm speaker which characterized in that: comprises at least one upper magnet support frame, an upper magnet group is fixed on the inner side of the upper magnet support frame, a first support mechanism and a second support mechanism are arranged below the upper magnet group, a voice coil diaphragm mechanism is arranged between the first support mechanism and the second support mechanism, at least one lower magnet support frame is further arranged below the second support mechanism, a lower magnet group is fixed on the inner side of the lower magnet support frame, an external communication device is arranged on at least one side of the upper part of the upper magnet support frame or the lower part of the lower magnet support frame, wherein,
the upper magnet group and the lower magnet group are oppositely arranged at intervals by taking the voice coil diaphragm mechanism as a space, wherein the upper magnet group comprises a plurality of upper magnets, the lower magnet group comprises a plurality of lower magnets, and the upper magnets and the lower magnets are arranged in a staggered manner;
the upper support frame is arranged above the upper magnet support frame, and the lower support frame is arranged below the lower magnet support frame;
a plurality of sound-transmitting holes are respectively arranged on the upper support frame and the lower support frame at intervals, and the sound-transmitting holes comprise one of the following forms:
(1) a strip-shaped sound-transmitting hole;
(2) a circular hole-shaped sound-transmitting hole;
(3) the irregular holes form sound transmission holes.
2. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 1, which is characterized in that: the upper and lower magnets comprise one of the following forms:
(1) symmetrical magnetic circuit structure: the upper magnet and the lower magnet are equal in size;
(2) asymmetric magnetic circuit structure: the upper magnet and the lower magnet are different in size.
3. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 2, wherein: the upper magnets and the lower magnets are arranged in a staggered mode and comprise one of the following forms:
(1) a plurality of gaps are formed among the upper magnets, and each gap corresponds to at least one lower magnet or is empty;
(2) a plurality of gaps are formed among the lower magnets, and each gap corresponds to at least one upper magnet or is empty.
4. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 1, which is characterized in that: the voice coil vibrating diaphragm mechanism comprises a voice coil and a vibrating diaphragm, and the connecting structure of the voice coil and the vibrating diaphragm comprises one of the following forms:
(1) when an external communication device is arranged above the upper magnet support frame, the voice coil is arranged above the vibrating diaphragm;
(2) when an external communication device is arranged below the upper magnet support frame, the voice coil is arranged below the vibrating diaphragm;
(3) when the top of going up the magnet support frame and the below of lower magnet support frame all are equipped with outside intercommunication device, the voice coil loudspeaker voice coil sets up the upper and lower both sides at the vibrating diaphragm, just still be equipped with conducting resin between voice coil loudspeaker voice coil and the vibrating diaphragm.
5. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 4, which is characterized in that: the voice coil is of a planar structure, and the vibrating diaphragm is a nanoscale planar vibrating diaphragm.
6. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 4, which is characterized in that: the external communication device comprises a conductive metal sheet and an external communication mechanism, and the conductive metal sheet is arranged below or above and below the external communication mechanism.
7. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 6, wherein: the first supporting mechanism, the second supporting mechanism and the external communicating mechanism are all PCB circuit boards.
8. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 1, which is characterized in that: the external communication device is connected with the voice coil diaphragm mechanism through the conduction mechanism.
9. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 1, which is characterized in that: the upper magnet support frames and the lower magnet support frames are arranged in a layered mode, the number of the upper magnet support frames is arranged according to the height of the upper magnet group, and the number of the lower magnet support frames is arranged according to the height of the lower magnet group.
10. The asynchronous magnetic structure plane diaphragm loudspeaker of claim 1, which is characterized in that: the upper magnet support frame and the lower magnet support frame are made of non-magnetic conductive metal materials.
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| CN202020024971.0U CN211378238U (en) | 2020-01-07 | 2020-01-07 | Asynchronous magnetic circuit structure plane vibrating diaphragm loudspeaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114554367A (en) * | 2021-04-01 | 2022-05-27 | 歌尔股份有限公司 | Sound production device and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114554367A (en) * | 2021-04-01 | 2022-05-27 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| CN114554367B (en) * | 2021-04-01 | 2023-10-03 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
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