CN211378234U - Planar diaphragm loudspeaker with magnetic reflux structure - Google Patents
Planar diaphragm loudspeaker with magnetic reflux structure Download PDFInfo
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- CN211378234U CN211378234U CN202020024960.2U CN202020024960U CN211378234U CN 211378234 U CN211378234 U CN 211378234U CN 202020024960 U CN202020024960 U CN 202020024960U CN 211378234 U CN211378234 U CN 211378234U
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Abstract
The utility model relates to a magnetic reflux structure plane vibrating diaphragm loudspeaker, including at least one magnet support frame, the inboard of magnet support frame is fixed with the magnet group, the magnet group includes a plurality of magnets, the top of magnet support frame 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, the below of magnetic reflux metal magnetic conduction support frame further is provided with the support frame, the lower part of support frame is equipped with outside intercommunication device; wherein, the support frame is made of magnetic conductive metal material or non-magnetic conductive metal material. The utility model discloses can realize preventing that the magnetic quantity from dispersing to the concentrated collection of magnetic quantity, improve the sound production quality to optimize the overall structure of speaker, realize the volume miniaturization, weight reduction.
Description
Technical Field
The utility model relates to a speaker technical field especially relates to a magnetic reflux structure plane vibrating diaphragm speaker.
Background
A speaker, also called a "horn", is a very common electroacoustic transducer, and is commonly used in electronic and electrical devices for generating sound. Electrodynamic loudspeakers, also known as moving-coil loudspeakers, are electroacoustic transducers that use electrodynamic isolation. The electrodynamic loudspeaker is widely favored by users due to the characteristics of simple structure, easy production, excellent performance and the like, and is the loudspeaker which is most widely used at present.
A flat diaphragm speaker is a kind of speaker that combines the advantages of both a moving-coil speaker and an electrostatic (capacitive) speaker, has better performance than the electrostatic speaker in terms of low frequencies, and is also stronger than the moving-coil speaker in terms of high frequencies. However, the magnetic flux of the existing plane diaphragm loudspeaker is easy to disperse, and the concentrated collection of the magnetic flux can not be realized, so that the magnetic energy conversion rate is low, the sound production quality is poor, and the plane diaphragm loudspeaker is large in size, heavy in mass and not suitable for in-ear earphones.
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 a magnetism reflux structure plane vibrating diaphragm speaker can realize the collection of concentrating of magnetism volume, accomplishes to prevent that the magnetism volume from dispersing, improves the sound production quality to optimize the overall structure of speaker, realize the volume miniaturization, weight reduction.
In order to achieve the above object, an embodiment of the present invention provides a magnetic reflux structure planar diaphragm loudspeaker, including at least one magnet support frame, a magnet assembly is fixed on the inner side of the magnet support frame, the magnet assembly includes a plurality of magnets, a first support mechanism and a second support mechanism are arranged above the magnet support frame, a voice coil diaphragm mechanism is installed between the first support mechanism and the second support mechanism, a support frame is further arranged below the magnet support frame, and an external communication device is arranged at the lower part of the support frame;
the support frame is made of a magnetic conductive metal material or a non-magnetic conductive metal material.
Preferably, a plurality of sound-transmitting holes are respectively arranged on the support frame at intervals.
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 of the above aspects, preferably, the conduction mechanism includes one of the following forms:
(1) a thimble mechanism;
(2) a spring mechanism;
(3) a rivet thimble mechanism;
(4) a rivet spring mechanism.
In the preferred of any one of the above schemes, the voice coil diaphragm mechanism includes a diaphragm and a voice coil arranged on the diaphragm, the voice coil is arranged in a planar serpentine structure, the left end and the right end of the voice coil are respectively provided with a voice coil anode wiring terminal and a voice coil cathode wiring terminal, and the diaphragm adopts a nano-scale planar diaphragm.
In any of the above schemes, preferably, a plurality of spacer blocks for blocking adjacent magnets are arranged in the magnet support frame.
In any of the above aspects, preferably, a dust cover is attached to a lower portion of the external communication device.
In any of the above solutions, preferably, a plurality of the magnet support frames are arranged in layers, wherein the number of the magnet support frames is set according to the height of the magnet group.
Compared with the prior art, the utility model has the advantages and beneficial effects do:
1. the planar vibrating diaphragm loudspeaker forms a magnetic reflux structure by arranging a magnet support frame or a magnetic reflux metal magnetic conduction support frame made of a magnetic conduction metal material, the structure enables overflowing magnetic flux to be recovered into a core magnetic field through the magnetic reflux structure, simultaneously enables the planar magnetic field to be more uniform and saturated, greatly improves the control force of the magnetic field on a sounding vibrating diaphragm, enables the sound to be clearer and more accurate, and better restores the sound expression, improves the magnetic energy conversion efficiency of an earphone or a sound loudspeaker by 25-35%, can obviously improve the control force of the sounding vibrating diaphragm of the loudspeaker after the magnetic energy conversion efficiency is greatly improved, can effectively improve the analytic force of the loudspeaker through the improvement of the control force, can increase a great number of music details when music is expressed, such as the harmonic overtone of a musical instrument, the outline of the musical instrument, and the enlarged whole restored sound field is close to a real playing meeting site after the analytic force and the details, leaving the listener with an immersive experience.
2. The single-sided magnet group is adopted, the whole volume of the plane diaphragm loudspeaker is reduced to a certain extent, the weight is reduced, and the planar diaphragm loudspeaker is suitable for in-ear earphones.
3. 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 planar diaphragm loudspeaker with magnetic return structure with reference to the drawings.
Drawings
Fig. 1 is a schematic structural diagram of a planar diaphragm loudspeaker of a magnetic reflux structure according to embodiment 1 or embodiment 2 of the present invention;
fig. 2 is a schematic structural diagram of a voice coil diaphragm mechanism in a planar diaphragm loudspeaker with a magnetic reflux structure according to the present invention;
fig. 3 is a schematic diagram of a conducting mechanism in a magnetic reflux structure planar diaphragm loudspeaker according to the present invention, which is a thimble mechanism;
fig. 4 is a schematic diagram of a conduction mechanism in a magnetic-reflux-structure planar diaphragm speaker according to the present invention, which is a spring mechanism;
fig. 5 is a schematic diagram of a conduction mechanism in a magnetic-reflux-structure planar diaphragm speaker according to the present invention, which is a rivet-thimble mechanism;
fig. 6 is a schematic diagram of a conduction mechanism in a magnetic-reflux-structure planar diaphragm speaker according to the present invention, which is a rivet-spring mechanism;
wherein: 1. a first support mechanism; 2. a voice coil diaphragm mechanism; 21. a voice coil; 22. vibrating diaphragm; 23. a positive terminal of the voice coil; 24. a voice coil negative terminal; 3. a second support mechanism; 4. a first magnet support frame; 5. a second magnet support frame; 6. a support frame; 61. an acoustically transparent aperture; 7. an external communication device; 8. a magnet group; 9. a conductive metal sheet; 10. a spring mechanism; 101. a first insulating sleeve; 102. a first positive metal conductive spring; 103. a first negative metal conductive spring; 11. a thimble mechanism; 111. A second insulating sleeve; 112. a positive conductive metal tube; 113. a negative conductive metal tube; 114. a second positive metal conductive spring; 115. a positive metal conductive contact; 116. a second negative metal conductive spring; 117. a negative metal conductive contact; 12. A rivet thimble mechanism; 13. a rivet spring mechanism; 14. a dust cover; 15. and (4) riveting.
Detailed Description
Example 1
As shown in fig. 1, the utility model provides a magnetic reflux structure plane vibrating diaphragm loudspeaker, including at least one magnet support frame 6, the inboard of magnet support frame 6 is fixed with magnet group 8, magnet group 8 includes a plurality of magnets, be equipped with first supporting mechanism 1 and second supporting mechanism 3 above magnet support frame 6, install voice coil loudspeaker voice coil vibrating diaphragm mechanism 2 between first supporting mechanism 1 and the second supporting mechanism 3, the below of magnet support frame 6 is further provided with support frame 6, the lower part of support frame 6 is equipped with outside intercommunication device 7; the support frame 6 is made of magnetic conductive metal material.
Through being equipped with support frame 6 that has magnetic conduction metal material, support frame 6 is on the basis that has support magnet group 8, because support frame 6 itself has magnetic conductivity, when 22 speakers of plane vibrating diaphragm and outside circular telegram, support frame 6 can concentrate the collection with the magnetic flux that magnet group 8 was dispersed, prevent that the magnetic flux from dispersing, the magnetic flux that will retrieve again passes back to magnet group 8, form powerful annular energy field from this, promote magnetic field intensity and electromagnetic induction efficiency greatly, make and produce powerful, unanimous propulsion, guarantee that voice coil loudspeaker voice coil vibrating diaphragm mechanism 2 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 2 in the closed magnetic field is further effectively enhanced, and the sound production quality is improved.
Wherein, the number of the magnets is set to be 1-20, and the number of the magnets can be set to be different or equal. It should be noted that the number of magnets is only for illustrative purposes, and is not intended to limit the present invention. The utility model provides a quantity of magnet can set up as required.
Example 2
The difference from embodiment 1 is that, as shown in fig. 1, the support frame 6 is made of a non-magnetic conductive metal material, and in this case, the support frame 6 only has a function of supporting the magnet assembly 8.
The utility model discloses a magnetism reflux structure plane vibrating diaphragm speaker is through adopting single face magnet group 8, reduces whole volume, the weight reduction of plane vibrating diaphragm 22 speaker to a certain extent, can be applicable to the in-ear earphone.
The utility model discloses an in any of the above-mentioned embodiments, magnet support frame 6 adopts arbitrary material to make, and when magnet support frame 6 adopted the magnetic conduction metal material to make, magnet support frame 6 is on the basis that has the fixed magnet function, and is the same with the effect that support frame 6 of embodiment 1 played to use rather than the cooperation, further improve the sound production quality of plane vibrating diaphragm 22 speaker.
In any of the above embodiments of the present invention, the supporting frame 6 is provided with a plurality of sound-transmitting holes 61 at intervals. The size of each sound-transmitting hole 61 is set according to the high, medium and low frequency density of the sound cavity to be adjusted. The sound-transmitting holes 61 are arranged to realize penetration and return of magnetic flux.
In any of the above embodiments of the present invention, the external communication device 7 is connected to the voice coil diaphragm mechanism 2 through a conduction mechanism, and the conduction mechanism includes one of the following forms:
(1) a thimble mechanism 11; (as shown in FIG. 3)
(2) A spring mechanism 10; (as shown in FIG. 4)
(3) A rivet thimble mechanism 12; (as shown in FIG. 5)
(4) A rivet spring mechanism 13. (as shown in FIG. 6)
Wherein: the spring mechanism 10 includes a first insulating sleeve 101, a first positive metal conductive spring 102, and a first negative metal conductive spring 103, the first insulating sleeve 101 is disposed on two sides of the voice coil diaphragm mechanism 2, and is disposed between the voice coil diaphragm mechanism 2 and the external communication device 7, the first positive metal conductive spring 102 is disposed in the first insulating sleeve 101 on one side, the first negative metal conductive spring 103 is disposed in the first insulating sleeve 101 on the other side, and two ends of the first positive metal conductive spring 102 and the first negative metal conductive spring 103 are respectively abutted to the voice coil diaphragm mechanism 2 and the external communication device 7.
The rivet spring mechanism 13 is, on the basis of the spring mechanism 10, the first support mechanism 1 or the second support mechanism 3 is riveted and fixed with the voice coil diaphragm mechanism 2 through a rivet 15, and the first positive metal conductive spring 102 and the first negative metal conductive spring 103 are abutted against the rivet 15.
The thimble mechanism 11 includes a second insulating sleeve 111, an anode conductive metal tube 112, and a cathode conductive metal tube 113, the second insulating sleeve 111 is disposed on both sides of the voice coil diaphragm mechanism 2 and disposed between the voice coil diaphragm mechanism 2 and the external communication device 7, the anode conductive metal tube 112 and the cathode conductive metal tube 113 respectively penetrate through the external communication device 7 and are inserted into the second insulating sleeve 111, a second anode conductive metal spring 114 and an anode conductive metal contact 115 are further disposed in the anode conductive metal tube 112, one end of the anode conductive metal contact 115 abuts against the voice coil diaphragm mechanism 2, the other end of the anode conductive metal contact 115 abuts against one end of the second anode conductive metal spring 114, the other end of the second anode conductive metal spring 114 abuts against the anode conductive metal tube 112, the cathode conductive metal tube 113 is further disposed with a second cathode conductive metal spring 116, And a negative metal conductive contact 117, wherein one end of the negative metal conductive contact 117 abuts against the voice coil diaphragm mechanism 2, the other end of the negative metal conductive contact 117 abuts against one end of the second negative metal conductive spring 116, and the other end of the second negative metal conductive spring 116 abuts against the negative conductive metal tube 113.
The rivet and thimble mechanism 12 is configured such that, on the basis of the thimble mechanism 11, the first support mechanism 1 or the second support mechanism 3 is riveted and fixed to the voice coil diaphragm mechanism 2 by a rivet 15, and the positive metal conductive contact 115 and the negative metal conductive contact 117 are abutted against the rivet 15.
Furthermore, in order to fix the utility model discloses the multilayer structure of magnetic reflux structure plane vibrating diaphragm speaker can adopt the screw, bordure, the mode of glue, realizes multilayer structure's fixed connection to guarantee multilayer structure's overall structure stability.
Further, the external communication device 7 includes a conductive metal sheet 9, an external communication mechanism, and the conductive metal sheet 9 is disposed below or above and below the external communication mechanism. When the conduction mechanism adopts the thimble mechanism 11 or the rivet thimble mechanism 12, the conductive metal sheet 9 is arranged below the external communication mechanism; when the conduction mechanism employs the spring mechanism 10 or the rivet spring mechanism 13, the conductive metal sheet 9 is disposed above and below the external communication mechanism.
In any of the above embodiments of the present invention, the first supporting mechanism 1, the second supporting mechanism 3, and the external communicating mechanism all employ PCB. The first supporting mechanism 1 and the second supporting mechanism 3 are used for supporting the voice coil diaphragm mechanism 2, and the external communicating mechanism is used for communicating with the outside to transmit signals, namely, the external communicating mechanism plays a role in transmitting signals to an external device.
In any of the above embodiments of the present invention, as shown in fig. 2, voice coil diaphragm mechanism 2 includes diaphragm 22 and voice coil 21 disposed on diaphragm 22, and voice coil 21 is set to be a planar serpentine structure, and both ends set up the positive terminal of voice coil 21 and the negative terminal of voice coil 21 respectively about voice coil 21, and diaphragm 22 adopts nanoscale planar diaphragm 22.
The utility model discloses an in any of the above-mentioned embodiments, be equipped with the spacer block of the adjacent magnet of a plurality of separations in the magnet support frame 6, have spacing fixed action to the magnet, prevent that dislocation phenomenon and inter attraction from appearing in the magnet working process.
In any of the above embodiments of the present invention, a dust cover 14 is installed below the external communication device 7. The dust cover 14 is arranged to block the external metal object, so as to prevent the magnet assembly 8 from attracting the external metal object to impact the voice coil diaphragm mechanism 2, and protect the planar diaphragm 22 loudspeaker.
In any of the above embodiments of the present invention, the magnet support frames 6 are arranged in layers, wherein the number of the magnet support frames 6 is set according to the height of the magnet assembly 8. That is, the magnet support frame 6 is provided in multiple layers according to the height of the magnet to be actually used. Because the magnet support frame 6 adopts a layering mechanism, flexible configuration can be conveniently carried out according to needs, and waste caused by non-adaptation of the traditional fixed height support is avoided. In the present embodiment, taking fig. 1 as an example, two magnet support frames 6 are provided, namely a first magnet support frame 64 and a second magnet support frame 65.
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 a magnetic reflux structure plane vibrating diaphragm speaker which characterized in that: the magnetic support comprises at least one magnet support frame, wherein a magnet group is fixed on the inner side of the magnet support frame, the magnet group comprises a plurality of magnets, a first support mechanism and a second support mechanism are arranged above the magnet support frame, a voice coil and diaphragm mechanism is arranged between the first support mechanism and the second support mechanism, the support frame is further arranged below the magnet support frame, and an external communication device is arranged at the lower part of the support frame;
the support frame is made of a magnetic conductive metal material or a non-magnetic conductive metal material.
2. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 1, wherein: a plurality of sound transmission holes are respectively arranged on the support frame at intervals.
3. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 1, wherein: 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.
4. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 3, wherein: the first supporting mechanism, the second supporting mechanism and the external communicating mechanism are all PCB circuit boards.
5. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 1, wherein: the external communication device is connected with the voice coil diaphragm mechanism through the conduction mechanism.
6. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 5, wherein: the conduction mechanism comprises one of the following forms:
(1) a thimble mechanism;
(2) a spring mechanism;
(3) a rivet thimble mechanism;
(4) a rivet spring mechanism.
7. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 1, wherein: voice coil loudspeaker voice coil vibrating diaphragm mechanism includes vibrating diaphragm and the voice coil loudspeaker voice coil of setting on the vibrating diaphragm, the voice coil loudspeaker voice coil is established to plane snakelike structure both ends set up voice coil loudspeaker voice coil positive terminal and voice coil loudspeaker voice coil negative terminal respectively about the voice coil loudspeaker voice coil, the vibrating diaphragm adopts nanometer plane vibrating diaphragm.
8. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 1, wherein: and a plurality of spacer blocks for separating adjacent magnets are arranged in the magnet support frame.
9. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 1, wherein: and a dust cover is arranged below the external communication device.
10. A magnetic return structure flat diaphragm loudspeaker as claimed in claim 1, wherein: the plurality of magnet support frames are arranged in a layered mode, wherein the number of the magnet support frames is set according to the height of the magnet group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020024960.2U CN211378234U (en) | 2020-01-07 | 2020-01-07 | Planar diaphragm loudspeaker with magnetic reflux structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020024960.2U CN211378234U (en) | 2020-01-07 | 2020-01-07 | Planar diaphragm loudspeaker with magnetic reflux structure |
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| Publication Number | Publication Date |
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| CN211378234U true CN211378234U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020024960.2U Active CN211378234U (en) | 2020-01-07 | 2020-01-07 | Planar diaphragm loudspeaker with magnetic reflux structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114173262A (en) * | 2021-11-18 | 2022-03-11 | 苏州清听声学科技有限公司 | Ultrasonic sounder, display and electronic equipment |
-
2020
- 2020-01-07 CN CN202020024960.2U patent/CN211378234U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114173262A (en) * | 2021-11-18 | 2022-03-11 | 苏州清听声学科技有限公司 | Ultrasonic sounder, display and electronic equipment |
| CN114173262B (en) * | 2021-11-18 | 2024-02-27 | 苏州清听声学科技有限公司 | Ultrasonic sound generator, display and electronic equipment |
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Effective date of registration: 20200831 Address after: Room 309, 3 / F, building A5, No. 18, Jinxing Road, Huaqiao Economic Development Zone, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Duomiyi (Suzhou) Intelligent Technology Co., Ltd Address before: Room 2237, No. 252, Yangxin Road, Dachang street, Jiangbei new district, Nanjing, Jiangsu Province, 210000 Patentee before: Nanjing pepper Technology Co.,Ltd. |
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