CN219181667U - Multi-voice coil multi-magnetic large-amplitude low-vibration-feeling self-pressure-relief loudspeaker and electronic product - Google Patents
Multi-voice coil multi-magnetic large-amplitude low-vibration-feeling self-pressure-relief loudspeaker and electronic product Download PDFInfo
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- CN219181667U CN219181667U CN202320050008.3U CN202320050008U CN219181667U CN 219181667 U CN219181667 U CN 219181667U CN 202320050008 U CN202320050008 U CN 202320050008U CN 219181667 U CN219181667 U CN 219181667U
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Abstract
The utility model discloses a multi-voice coil multi-magnetic large-amplitude low-vibration self-pressure-relief loudspeaker and an electronic product, which are provided with: the magnetic circuit unit comprises a magnetic steel assembly and a magnetic guide pole piece which are stacked, and a pressure relief hole group is formed in the magnetic circuit unit in a penetrating manner; the vibration sounding unit comprises a voice coil and a vibrating diaphragm assembly, wherein two voice coils are respectively arranged on two opposite sides of the magnetic circuit unit in a staggered mode, and the vibrating diaphragm assembly is used for being connected with the single voice coil. According to the utility model, through the arrangement of the multi-vibration sounding system, the effect of improving the loudness can be achieved, and the accelerations of the vibration systems exactly offset each other, so that the shock feeling of the loudspeaker is greatly reduced, the use experience is improved, meanwhile, the problem of sound leakage of the loudspeaker during conversation is improved, and the conversation privacy is improved.
Description
Technical Field
The utility model relates to the technical field of speakers, in particular to a multi-voice-coil multi-magnet large-amplitude low-vibration self-pressure-relief type speaker and a corresponding electronic product.
Background
At present, when the loudspeaker is applied to electronic products such as mobile phones, flat plates and the like, the size space is limited, the conventional loudspeaker structure at present only has a single sounding structure, the performance is difficult to improve, if the power is increased, the shock feeling is quite obvious, and the use requirement of high-end occasions cannot be met.
Thus, a new speaker structure is needed to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to avoid the defects of the prior art, and provides a voice coil multi-magnet large-amplitude low-vibration self-pressure-relief loudspeaker.
The utility model solves the technical problems by adopting the following technical scheme: the utility model provides a many magnetism of many voice coils big amplitude low shock sense is from pressure release formula speaker has:
the magnetic circuit unit comprises a magnetic steel assembly and a magnetic guide pole piece which are stacked, and a pressure relief hole group is formed in the magnetic circuit unit in a penetrating manner;
the vibration sounding unit comprises a voice coil and a vibrating diaphragm assembly, wherein two voice coils are respectively arranged on two opposite sides of the magnetic circuit unit in a staggered mode, and the vibrating diaphragm assembly is used for being connected with the single voice coil.
In several embodiments, the magnetic steel assembly has:
the magnetic shield comprises a main magnet and side magnets, and a plurality of side magnets are arranged along the whole body of the main magnet and turned over outwards;
the main magnetic steel is arranged on the main magnet and positioned in the side magnet;
and the side magnetic steel is correspondingly arranged on the side magnet.
In several embodiments, one of the voice coils is disposed inside the main magnet and around the main magnet steel, and the other voice coil is disposed around the outside of the main magnet.
In several embodiments, the centerlines of the two voice coils overlap and are of different sizes.
In several embodiments, the main magnet includes a bottom surface and a plurality of side surfaces disposed around the circumference of the bottom surface;
the pressure relief hole group comprises a forward through hole and a lateral through hole, wherein a plurality of the forward through holes penetrate through the bottom surface and the main magnetic steel, and a plurality of the lateral through holes penetrate through the side surface.
In several embodiments, the main magnet steel and the main magnet are provided with a plurality of air guide grooves, and the air guide grooves pass through the forward through holes at the corresponding positions.
In several embodiments, the vibration sound generating device further comprises an FPC unit and a supporting unit, wherein the two supporting units are respectively arranged on two opposite sides of the magnetic circuit unit, the FPC unit is arranged on the supporting unit, and the vibration sound generating unit is electrically connected with the FPC unit.
In several embodiments, the diaphragm assembly includes waterproof ventilated membrane, diaphragm and dome membrane, dome membrane laminating sets up on the diaphragm and is connected with the voice coil loudspeaker voice coil, the diaphragm is connected with FPC unit and supporting element.
In several embodiments, the dome membrane is provided with a plurality of ventilation holes, the waterproof ventilation membrane is arranged on the dome membrane and covers the ventilation holes, and the waterproof ventilation membrane can be used for ventilation.
And an electronic product, such as a mobile phone, a tablet, etc., adopting the speaker structure.
The utility model has the following beneficial effects:
1. through the novel design of the loudspeaker structure, the magnetic steel capable of improving the performance is given to the release of the internal space, and the loudness of the loudspeaker is integrally improved;
2. compared with the traditional single vibration system, the design creatively designs a plurality of vibration systems, each system is mutually independent and can be independently controlled to be driven, and in the outward-playing mode, the plurality of vibration systems emit sound waves with the same phase, the sound waves are overlapped to play a role in improving the loudness, and the accelerations of the vibration systems exactly offset each other, so that the shock sensation of a loudspeaker is greatly reduced, and the use experience is improved;
3. the voice coils can be driven independently, one side of the voice coil, which is contacted with the human ear, of the vibrating system normally sounds in the earphone mode, and the other vibrating systems send out sound waves with opposite phases, so that in the far field of sound, several groups of sound waves are mutually offset in opposite phases, the problem of loudspeaker voice leakage during conversation is solved, and conversation privacy is improved;
4. the porous structure for improving the internal acoustic resistance is used through the internal structure, so that the performance of the loudspeaker is improved;
5. the pressure relief holes are added to improve the pressure relief problem inside the loudspeaker and the whole machine, so that the risk of the expansion of the loudspeaker is reduced, meanwhile, the whole machine does not need to be additionally provided with the pressure relief holes, and the design difficulty of the whole machine is reduced;
6. through the multi-FPC combined design, the assembly difficulty and the material waste rate are reduced;
7. the overall height of the loudspeaker is reduced through the voice coil dislocation design, and the same height of a single vibration system loudspeaker can be achieved under the condition of one more vibration system.
Drawings
The drawings described herein are for illustration purposes only of selected embodiments and are not intended to represent all possible implementations and should not be construed as limiting the scope of the present utility model.
Fig. 1 schematically shows the overall structure of a speaker in the present embodiment;
fig. 2 schematically shows the cross-sectional structure of fig. 1;
FIG. 3 schematically illustrates the explosive structure of FIG. 1;
FIG. 4 schematically illustrates an enlarged structure of the magnetic shield of FIG. 3;
fig. 5 schematically shows the planar structure of fig. 4;
fig. 6 schematically shows a planar structure of the main magnet steel in fig. 3;
fig. 7 schematically illustrates a structure of the supporting unit of fig. 3;
fig. 8 schematically illustrates a structure of the FPC unit of fig. 3;
fig. 9 schematically shows the sound outlet distribution structure of the speaker in the electronic device in the present embodiment.
Detailed Description
In the following, embodiments of the present utility model will be described in detail, for the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, and in the following, technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments.
The terminology used herein is for the purpose of describing embodiments and is not intended to be limiting and/or limiting of the utility model.
For example, "in a certain direction", "parallel", "orthogonal", "center", "opposite", "front-rear-left-right", and the like indicate expressions of relative or absolute arrangement, and indicate not only such arrangement in a strict sense but also a state of relative displacement with tolerance or with an angle or distance that can obtain the same degree of function.
Example 1
As shown in fig. 1-6, the speaker structure in this embodiment mainly comprises a magnetic circuit unit 1, a vibration sounding unit 2, an FPC unit 50 and a support unit 60, wherein two support units 60 are respectively disposed on two opposite sides of the magnetic circuit unit 1, the FPC unit 50 is disposed on the support unit 60, and the vibration sounding unit 2 is electrically connected with the FPC unit 50, so as to realize a speaker sounding function.
Specifically, the vibration sounding unit 2 is composed of a voice coil 21 and a diaphragm assembly, the two voice coils 21 are respectively arranged on two opposite sides of the magnetic circuit unit 1 in a staggered manner, and the single diaphragm assembly is used for being connected with the single voice coil 21.
Specifically, the magnetic circuit unit 1 is composed of a magnetic steel assembly and magnetic guide pole pieces 11a and 11b which are stacked, and a pressure relief hole group is formed in the magnetic circuit unit 1 in a penetrating manner, wherein the magnetic steel assembly is composed of a magnetic shield 12, main magnetic steel 13 and side magnetic steel 14, the magnetic shield 12 is correspondingly composed of a main magnet 120 and side magnets 130, a plurality of side magnets 130 are arranged along the whole body of the main magnet 120 and horizontally folded outwards, the main magnetic steel 13 is correspondingly arranged on the main magnet 120 and positioned in the side magnets 130, and four side magnetic steel 14 are correspondingly glued on the four side magnets 130.
Correspondingly, the magnetic guide pole piece 11a is of an annular structure and is glued on the four side magnetic steels 14, and the magnetic guide pole piece 11b is glued on the main magnetic steel 13.
For easy understanding, the main magnet 120 is configured such that one bottom surface 121 is perpendicular to four side surfaces 122 disposed around the bottom surface 121, and the side surfaces 122 are thinned, thereby improving space utilization, shortening magnetic gap, and improving performance.
And the pressure relief hole group is formed by a forward through hole 31 and a lateral through hole 32, the forward through holes 31 penetrate through the bottom 121 of the main magnet 120, the main magnet steel 13 glued on the bottom 121 and the magnetic pole piece 11b glued on the main magnet steel 13, the lateral through holes 32 penetrate through the side 122 of the main magnet 120, so that the acoustic resistance of the inside of the loudspeaker can be reduced, the air pressure balance of two vibrating systems is ensured, the consistency of the vibration amplitudes at two sides is ensured through the adjustment of the air pressure holes, and the reliability of the loudspeaker is improved.
And, further, the bottom 121 and the magnetic pole guiding piece 11b are provided with a structure of an air guiding groove 40, the air guiding groove 40 passes through the positive through holes 31 at the corresponding positions, and taking three positive through holes 31 as an example, the paths of the air guiding groove 40 are correspondingly provided in a shape of a Chinese character 'mi', so that the acoustic resistance is further reduced, the performance of the loudspeaker is improved, and the harmonic distortion is reduced.
One of the voice coils 21 is disposed inside the main magnet 120 and surrounds the whole body of the main magnet steel 13, i.e. is disposed inside the side surface 122 of the main magnet 120, the other voice coil 21 is disposed around the outside of the main magnet 120, i.e. surrounds the outside of the side surface 122 of the main magnet 120, and the two voice coils 21 have different specifications, i.e. have different sizes, so that dislocation distribution is realized, and the center lines of the two voice coils 21 need to be overlapped.
The two voice coils 21 are designed to be offset from each other one by one, so that the overall height can be reduced.
And the diaphragm assembly is correspondingly composed of a waterproof breathable film 22, a diaphragm 23 and a dome film 24, wherein the dome film 24 is attached to the diaphragm 23 and connected with the voice coil 21, the diaphragm 23 is connected with the FPC unit 50 and the supporting unit 60, a plurality of ventilation holes 241 are formed in the dome film 24, the waterproof breathable film 22 is arranged on the dome film 24 and covers the ventilation holes 241, and the waterproof breathable film 22 plays a role in preventing water but supplying air circulation, realizes self pressure relief and ensures that the loudspeaker does not expand.
It should be noted that, the voice coil 21 is directly adhered to the dome film 24, the adhesion area and flatness are greatly improved, and the FPC unit is designed at the upper part, so that space is saved for the inside, and more internal space can be released.
The external input lead is connected with the FPC through a lead of the FPC and then connected with the voice coil, the voice coil is electrified and moves in a magnetic field to drive the dome film and other connecting parts to push air to generate sound; the diaphragm provides resilience, and the FPC not only serves as a lead, but also serves as a vibration damper, so that the amplitude balance is maintained.
Because the two voice coils can be driven by independent signals, the two voice coils can realize multiple functions 1, and under the low vibration sense mode, the motion directions of the two voice coils are opposite, the two vibration systems emit sound waves with the same phase, and because the phases are the same, the loudness is superposed, and the acceleration directions are opposite and offset; 2. in the private call mode, the two voice coils move in the same direction, sound waves with opposite phases are emitted, and the sound waves cancel each other in the far field of the sound field, so that surrounding people cannot hear the call sound; meanwhile, two voice coils can also work in series-parallel connection.
As shown in fig. 7 to 8, the present utility model is mainly composed of the following steps when assembled:
1. the dome membrane is subjected to laser drilling or mechanical drilling to obtain tiny holes with the aperture of 0.05-0.5; 2. attaching a waterproof breathable film outside the perforated part of the dome and maintaining the pressure for a period of time to ensure the adhesion; 3. the FPC unit is adhered to the supporting unit firstly, and the adhering modes are various: (1) bonding conventionally using an industrial adhesive; (2) Tin plating is carried out on the bonding surface of the support unit and the FPC unit, and bonding force is formed after tin is melted and combined, so that the problem of insufficient bonding force of the bonding surface which is too narrow can be solved; 4. bonding the ball top film with the FPC unit; 5. the voice coil is adhered to the top of the ball, the wire of the voice coil is welded to the FPC, then protective glue is applied, the lead FPC and the FPC are welded integrally, the protective glue is also applied, the lead FPC is adhered to the side wall of the supporting unit, and the test conduction is carried out; 6. the magnetic steel, the magnetic cover and the pole piece are combined together through an industrial adhesive; 7. and welding the two assembled vibration system components and the magnetic steel assembly into a whole by using laser, and completing the assembly of the whole product and performing performance test.
As shown in fig. 9, when the speaker is placed in a corresponding electronic product, two opposite sound outlets 1000 are provided at corresponding mounting positions, and the two opposite sound outlets correspond to two vibration sound generating systems.
The present utility model describes preferred embodiments, including the best mode known to the inventors for carrying out the utility model. Variations of these preferred embodiments will, of course, be apparent to those skilled in the art. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the utility model to be practiced otherwise than as specifically described herein. Accordingly, this utility model includes all modifications encompassed within the spirit and scope of the utility model as defined by the claims. Moreover, unless indicated otherwise or clearly contradicted by context, the present utility model includes any of the above-described factors and all possible variations thereof.
Claims (10)
1. The utility model provides a many magnetism of many voice coils big amplitude low shock sense is from pressure release formula speaker which characterized in that has:
the magnetic circuit unit comprises a magnetic steel assembly and a magnetic guide pole piece which are stacked, and a pressure relief hole group is formed in the magnetic circuit unit in a penetrating manner;
the vibration sounding unit comprises a voice coil and a vibrating diaphragm assembly, wherein two voice coils are respectively arranged on two opposite sides of the magnetic circuit unit in a staggered mode, and the vibrating diaphragm assembly is used for being connected with the single voice coil.
2. The multi-voice coil, multi-magnet, high-amplitude, low-shock, self-venting speaker of claim 1, wherein the magnetic steel assembly has:
the magnetic shield comprises a main magnet and side magnets, and a plurality of side magnets are arranged along the whole body of the main magnet and turned over outwards; the main magnetic steel is arranged on the main magnet and positioned in the side magnet;
and the side magnetic steel is correspondingly arranged on the side magnet.
3. The multi-voice coil multi-magnet high amplitude low vibration self-venting speaker of claim 2, wherein one of the voice coils is disposed inside the main magnet and surrounds the main magnet steel, and the other voice coil is disposed around the main magnet.
4. A multi-voice coil, multi-magnetic, large amplitude, low vibration, self-venting speaker as claimed in claim 3 wherein the centerlines of two of said voice coils overlap and are of different sizes.
5. The multi-voice coil multi-magnet high amplitude low vibration self-venting speaker of claim 4, wherein the main magnet comprises a bottom surface and a plurality of side surfaces circumferentially disposed about the bottom surface;
the pressure relief hole group comprises a forward through hole and a lateral through hole, wherein a plurality of the forward through holes penetrate through the bottom surface and the main magnetic steel, and a plurality of the lateral through holes penetrate through the side surface.
6. The multi-voice coil multi-magnet large-amplitude low-vibration self-pressure-relief loudspeaker according to claim 5, wherein the main magnetic steel and the main magnet are provided with a plurality of air guide grooves, and the air guide grooves pass through the forward through holes at corresponding positions.
7. The multi-voice coil multi-magnet large-amplitude low-vibration self-pressure-relief loudspeaker according to claim 6, further comprising an FPC unit and a support unit, wherein the two support units are respectively arranged on two opposite sides of the magnetic circuit unit, the FPC unit is arranged on the support unit, and the vibration sounding unit is electrically connected with the FPC unit.
8. The multi-voice coil multi-magnetic large-amplitude low-vibration self-pressure-relief loudspeaker according to claim 7, wherein the diaphragm assembly comprises a waterproof breathable film, a diaphragm and a dome film, the dome film is attached to the diaphragm and connected with the voice coil, and the diaphragm is connected with the FPC unit and the support unit.
9. The multi-voice coil multi-magnet large-amplitude low-vibration self-pressure-relief loudspeaker according to claim 8, wherein a plurality of air holes are formed in the dome film, the waterproof breathable film is arranged on the dome film and covers the air holes, and the waterproof breathable film can be used for ventilation.
10. An electronic product, characterized in that the multi-voice coil multi-magnetic large-amplitude low-vibration self-pressure-relief loudspeaker according to any one of claims 1-9 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320050008.3U CN219181667U (en) | 2023-01-09 | 2023-01-09 | Multi-voice coil multi-magnetic large-amplitude low-vibration-feeling self-pressure-relief loudspeaker and electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320050008.3U CN219181667U (en) | 2023-01-09 | 2023-01-09 | Multi-voice coil multi-magnetic large-amplitude low-vibration-feeling self-pressure-relief loudspeaker and electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219181667U true CN219181667U (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320050008.3U Active CN219181667U (en) | 2023-01-09 | 2023-01-09 | Multi-voice coil multi-magnetic large-amplitude low-vibration-feeling self-pressure-relief loudspeaker and electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219181667U (en) |
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2023
- 2023-01-09 CN CN202320050008.3U patent/CN219181667U/en active Active
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Address after: No. 66, Qiantangjiang Road, Huimin street, Jiashan County, Jiaxing City, Zhejiang 314112 Patentee after: Zhejiang Qisheng Electronic Technology Co.,Ltd. Address before: 314112 building 3, 101 Zhijiang Road, Huimin street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: Zhejiang Qisheng Electronic Technology Co.,Ltd. |