CN110366080A - Loudspeaker and audio devices - Google Patents
Loudspeaker and audio devices Download PDFInfo
- Publication number
- CN110366080A CN110366080A CN201910728059.5A CN201910728059A CN110366080A CN 110366080 A CN110366080 A CN 110366080A CN 201910728059 A CN201910728059 A CN 201910728059A CN 110366080 A CN110366080 A CN 110366080A
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- magnetic
- loudspeaker
- magnetic circuit
- conductive part
- cone basin
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
It includes: bracket that the present invention, which discloses a kind of loudspeaker and audio devices, loudspeaker,；Magnetic circuit system, is installed on bracket, and magnetic circuit system has magnetic circuit gap and the cone basin oscillation space on the inside of magnetic circuit gap；And vibrational system, vibrational system includes that vibrating diaphragm, bullet wave and voice coil, vibrating diaphragm include cone basin portion and the elastic joint part for being connected to cone basin portion periphery, and the outer edge of elastic joint part is connected to bracket, the bottom in cone basin portion is set in cone basin oscillation space, plays wave connection cone basin portion and magnetic circuit system；One end of voice coil is connected to elastic joint part, and the other end of voice coil protrudes into magnetic circuit gap.In this way, the distance between vibrating diaphragm and the upper end of vibrational system can be reduced under the premise of ensuring that the peak swing of voice coil has the larger value, the thickness of loudspeaker is thinned.
Description
Technical field
The present invention relates to electroacoustic techniques field, in particular to a kind of loudspeaker and audio devices.
Background technique
With gradually integrated, the lightening development trend of electronic product (such as TV) currently on the market, to insertion
Loudspeaker therein also proposed increasingly higher demands；Especially for woofer, the requirement to its ultra-thin property is got over
Come higher.Traditional cone loudspeaker gradually can not meet demand of the market to ultra-thin because its volume is huger.
Summary of the invention
The main object of the present invention is to propose a kind of thin speaker.
To achieve the above object, the present invention proposes a kind of loudspeaker, comprising:
Bracket；
Magnetic circuit system, is installed on the bracket, and the magnetic circuit system has magnetic circuit gap and is set in the magnetic circuit gap
The cone basin oscillation space of side；And
Vibrational system, the vibrational system include vibrating diaphragm, play wave and voice coil, and the vibrating diaphragm includes cone basin portion and is connected to institute
The elastic joint part of cone basin portion periphery is stated, the outer edge of the elastic joint part is connected to the bracket, the bottom in the cone basin portion
Portion is set in the cone basin oscillation space, and the bullet wave connects the cone basin portion and the magnetic circuit system；One end of the voice coil
It is connected to the elastic joint part, the other end of the voice coil protrudes into the magnetic circuit gap.
Optionally, there is default annular region, the voice coil connects between the inward flange and outer edge of the elastic joint part
It is connected in the default annular region, to increase the amplitude of the voice coil in the same Oscillation Amplitude of the diaphragm oscillations.
Optionally, in the section of the center line of the excessively described vibrating diaphragm, the connection position of the voice coil and the elastic joint part
Setting has first distance (D4) between the inward flange of the elastic joint part, the inward flange and outer edge of the elastic joint part
Between there is second distance (D3), the first distance (D4) and the second distance (D3) have the first ratio, described first
Ratio is greater than or equal to 0.3, and is less than or equal to 0.7.
Optionally, in the section of the center line of the excessively described vibrating diaphragm, the inward flange of the elastic joint part and the vibrating diaphragm
Center line between there is third distance (D1), in the link position and the vibrating diaphragm of the voice coil and the elastic joint part
There is the 4th distance (D2) between heart line, have the 5th between the outer edge of the elastic joint part and the center line of the vibrating diaphragm
Distance (D), with the second ratio between third distance (D1) and the 5th distance (D), second ratio be greater than or
Equal to 0.15, and less than 0.55；With third ratio between 4th distance (D2) and the 5th distance (D), described the
Three ratios are greater than or equal to 0.55, and are less than or equal to 0.85；The third ratio is greater than second ratio.
Optionally, the integral thickness of the loudspeaker is greater than or equal to 7 millimeters, and is less than or equal to 12 millimeters.
Optionally, described one end for playing wave is connected to the bottom in the cone basin portion, and the other end is connected to the magnetic circuit system.
Optionally, the magnetic circuit system includes the first magnetic conductive part and center magnetic path, and first magnetic conductive part includes the first base
Plate and the first magnetic conduction protrusion for being convexly equipped in the first substrate surface and being distributed in a ring, the center magnetic path are set to described the
The inside of one magnetic conduction protrusion forms the magnetic circuit gap, the center between the center magnetic path and first magnetic conduction protrusion
The middle part of magnetic circuit forms the cone basin oscillation space.
Optionally, first magnetic conductive part further includes second for being convexly equipped in the first substrate surface and being distributed in a ring
Magnetic conduction protrusion, second magnetic conduction protrusion are set to the inside of first magnetic conduction protrusion, and first magnetic conduction protrusion protrudes from institute
State the second magnetic conduction protrusion；
The center magnetic path includes second magnetic conduction protrusion, the first magnet being distributed in a ring and is arranged in a ring
Two magnetic conductive parts, second magnetic conductive part and first magnet are successively stacked at second magnetic conduction protrusion, first magnet
Between second magnetic conductive part and second magnetic conduction protrusion；
The magnetic circuit gap is formed between second magnetic conductive part and first magnetic conduction protrusion, second magnetic conduction is convex
The inside in portion, first magnet and second magnetic conductive part forms the cone basin oscillation space.
Optionally, the inner edge of first magnet inwardly laterally protrudes from second magnetic conduction protrusion, the bullet wave connection
In the lower surface of the inner edge of first magnet, the other end for playing wave is connected to the cone basin portion.
Optionally, the loudspeaker further includes thermal insulator, and the thermal insulator is set to the following table of the inner edge of first magnet
Face, the lower surface for playing wave and being connected to the thermal insulator.
Optionally, the thermal vias being connected to the cone basin oscillation space, the loudspeaking are offered on the first substrate
Device further includes radiating piece, and the radiating piece is sealedly attached to the thermal vias.
Optionally, the outer rim of the first substrate protrudes from first magnetic conduction protrusion laterally outwardly；The bracket includes
Bottom plate and the coaming plate for being convexly equipped in the backplate surface, the bottom plate are equipped with installation through-hole, and first magnetic conductive part is set to described
In installation through-hole, and the bottom plate is connected to the upper surface of the outer rim of the first substrate.
Optionally, the magnetic circuit system includes third magnetic conductive part and side magnetic circuit, and the third magnetic conductive part includes the second substrate
With the annular magnetic-conductance portion for being convexly equipped in the second substrate surface, the side magnetic circuit is set to the side of the annular magnetic-conductance portion, described
The magnetic circuit gap is formed between annular magnetic-conductance portion and the side magnetic circuit, and the cone basin vibration is formed on the inside of the annular magnetic-conductance portion
Space.
Optionally, the side magnetic circuit includes the second magnet being distributed in a ring and the 4th magnetic conductive part being distributed in a ring, institute
It states the second magnet and the 4th magnetic conductive part is successively stacked at the second substrate surface, and second magnet is set to described the
Between four magnetic conductive parts and the second substrate；It is formed between the magnetic circuit between the annular magnetic-conductance portion and the 4th magnetic conductive part
Gap.
Optionally, the magnetic circuit system includes third magnetic conductive part, the 5th magnetic conductive part and side magnetic circuit, the third magnetic conductive part packet
The second substrate and the annular magnetic-conductance portion for being convexly equipped in the second substrate surface are included, the side magnetic circuit is set to the annular magnetic-conductance portion
Side, the 5th magnetic conductive part are distributed in the upper end of the annular magnetic-conductance portion, the 5th magnetic conductive part and the side magnetic in a ring
Form the magnetic circuit gap between road, it is empty that the inside of the annular magnetic-conductance portion and the 5th magnetic conductive part forms the cone basin vibration
Between；
The inner edge of 5th magnetic conductive part inwardly laterally protrudes from the annular magnetic-conductance portion, and described one end for playing wave is connected to
The lower surface of the inner edge of 5th magnetic conductive part, the other end for playing wave are connected to the cone basin portion.
Optionally, the voice coil has lead, and the lead portion is fixed on the lower surface of the elastic joint part.
The present invention also proposes a kind of audio devices, including loudspeaker.The loudspeaker includes:
Bracket；
Magnetic circuit system, is installed on the bracket, and the magnetic circuit system has magnetic circuit gap and is set in the magnetic circuit gap
The cone basin oscillation space of side；And
Vibrational system, the vibrational system include vibrating diaphragm, play wave and voice coil, and the vibrating diaphragm includes cone basin portion and is connected to institute
The elastic joint part of cone basin portion periphery is stated, the outer edge of the elastic joint part is connected to the bracket, the bottom in the cone basin portion
Portion is set in the cone basin oscillation space, and the bullet wave connects the cone basin portion and the magnetic circuit system；One end of the voice coil
It is connected to the elastic joint part, the other end of the voice coil protrudes into the magnetic circuit gap.
Loudspeaker of the present invention at least can be real by the way that vibrating diaphragm to be divided into cone basin portion and the elastic joint part of interconnection
Existing following effect:
1) vibration performance of vibrating diaphragm is advantageously ensured that.
2) planar compared to vibrating diaphragm to be integrally made into, loudspeaker of the present invention by setting cone basin portion, and make cone basin portion with
Wave connection is played, to enhance cone basin portion and play the interaction of wave, to can guarantee the stability of vibration of vibrating diaphragm and vibrational system.
3) compared to vibrating diaphragm to be integrally made into cone basin shape, loudspeaker of the present invention is by setting elastic joint part, so that cone basin
Portion correspond to cone basin oscillation space setting, can effectively avoid vibrating diaphragm and interfered in vibration processes with magnetic circuit system, so as to
Under the premise of ensuring that the peak swing of voice coil has the larger value, the distance between vibrating diaphragm and the upper end of vibrational system are reduced, to subtract
The thickness of thin loudspeaker.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of loudspeaker of the present invention；
Fig. 2 is the configuration schematic diagram of loudspeaker in Fig. 1；
Fig. 3 is the structural schematic diagram of bracket in Fig. 2；
Fig. 4 is the structural schematic diagram of vibrating diaphragm in Fig. 2；
Fig. 5 is the structural schematic diagram of voice coil in Fig. 2；
Fig. 6 is the diagrammatic cross-section of loudspeaker of the present invention I-I line along Fig. 1；
Fig. 7 is the partial structural diagram in Fig. 6 on the left of loudspeaker；
Fig. 8 is the size marking structural schematic diagram of loudspeaker in Fig. 7；
Fig. 9 is the structural schematic diagram of another embodiment of loudspeaker of the present invention；
Figure 10 is the partial structural diagram in Fig. 9 on the left of loudspeaker；
Figure 11 is the structural schematic diagram of the another embodiment of loudspeaker of the present invention；
Figure 12 is the partial structural diagram in Figure 11 on the left of loudspeaker.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Loudspeaker | 43 | Lead |
| 10 | Bracket | 50 | First magnetic conductive part |
| 11 | Bottom plate | 51 | First substrate |
| 111 | Installation through-hole | 511 | Thermal vias |
| 12 | Coaming plate | 512 | Radiating piece |
| 13 | Connect ring flat-plate | 52 | First magnetic conduction protrusion |
| 14 | Flanging | 53 | Second magnetic conduction protrusion |
| 15 | Connecting terminal | 61 | First magnet |
| 20 | Vibrating diaphragm | 62 | Second magnetic conductive part |
| 21 | Cone basin portion | 70 | Third magnetic conductive part |
| 22 | Elastic joint part | 71 | The second substrate |
| 221 | First annular interconnecting piece | 72 | Annular magnetic-conductance portion |
| 222 | Second annular interconnecting piece | 73 | 5th magnetic conductive part |
| 23 | Protrusion | 81 | Second magnet |
| 24 | Ring | 82 | 4th magnetic conductive part |
| 30 | Play wave | 90 | Thermal insulator |
| 40 | Voice coil | 1 | Magnetic circuit gap |
| 41 | Speech coil framework | 2 | Cone basin oscillation space |
| 42 | Coil |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to the description of " first ", " second " etc. in the embodiment of the present invention, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.
In addition, the meaning of the "and/or" occurred in full text is, and including three schemes arranged side by side, by taking " A and/or B " as an example,
The scheme met simultaneously including A scheme or B scheme or A and B.
The present invention proposes a kind of loudspeaker, is mainly used for the broadcasting of low frequency signal.
In an embodiment of the present invention, as shown in Fig. 1,2,4,6 and 7, which includes:
Bracket 10；
Magnetic circuit system, is installed on bracket 10, and the magnetic circuit system has magnetic circuit gap 1 and set on 1 inside of magnetic circuit gap
Cone basin oscillation space 2；And
Vibrational system, the vibrational system include vibrating diaphragm 20, play wave 30 and voice coil 40, and the vibrating diaphragm 20 includes cone basin portion 21
With the elastic joint part 22 for being connected to 21 periphery of cone basin portion, the outer edge of the elastic joint part 22 is connected to bracket 10, described
The bottom in cone basin portion 21 is set in cone basin oscillation space 2, and the bullet wave 30 connects cone basin portion 21 and magnetic circuit system；The voice coil 40
One end be connected to the elastic joint part 22, the other end of the voice coil 40 protrudes into magnetic circuit gap 1.
In the present invention, directional terminology "inner" refers to the orientation towards center line shown in the chain lines of Fig. 6,9 and 11,
And directional terminology "outside" refers to the orientation far from center line shown in the chain lines of Fig. 6,9 and 11.
Wherein, as shown in fig. 6, the cone basin portion 21 is substantially in cone basin shape, the corresponding cone basin oscillation space 2 in cone basin portion 21 is set
It sets, the lower part in cone basin portion 21 can be in 2 internal vibration of cone basin oscillation space.It is to be appreciated that if relating to direction in the embodiment of the present invention
Property instruction (such as up, down, left, right, before and after ...), then directionality instruction be only used for explain it is (such as attached in a certain particular pose
Shown in figure) under relative positional relationship, motion conditions etc. between each component, if the particular pose changes, the party
Tropism instruction also correspondingly changes correspondingly.
Specifically, generating changing magnetic field in magnetic circuit gap 1 after audio signal is connected, which can drive sound
For circle 40 in 1 internal vibration of magnetic circuit gap, voice coil 40 can drive vibrating diaphragm 20 to vibrate and sounding.When vibrating diaphragm 20 vibrates, cone basin portion 21
It lower part can be in 2 internal vibration of cone basin oscillation space；Meanwhile playing wave 30 and being vibrated with vibrating diaphragm 20, to improve vibrating diaphragm 20 and vibration system
The stability of system vibration.
It is mounted in cone basin oscillation space 2 specifically, playing wave 30, and the one end for playing wave 30 is connected to the cone basin portion 21,
The other end for playing wave 30 is connected to magnetic force systems.
Loudspeaker 100 of the present invention is arranged cone basin oscillation space 2 by the inside in magnetic circuit gap 1, can be used for avoiding cone basin
The vibration in portion 21, so that cone basin portion 21 can be in 2 internal vibration of cone basin oscillation space, to can not only provide for the vibration in cone basin portion 21
Sufficient oscillation space, to realize the low-frequency high-power output of loudspeaker 100；Installation space can also be provided to play wave 30, with
Be conducive to the thickness that loudspeaker 100 is thinned, realize the ultrathin design of loudspeaker 100.
Wherein, the thickness of loudspeaker 100 refers to that loudspeaker 100 is whole thick on the center line extending direction of vibrating diaphragm 20
Degree.
Meanwhile loudspeaker 100 of the present invention, by cone basin portion 21 and elastic joint part that vibrating diaphragm 20 is divided into interconnection
22, following effect at least may be implemented:
1) vibration performance of vibrating diaphragm 20 is advantageously ensured that.
2) planar compared to 20 entirety of vibrating diaphragm to be made into, loudspeaker 100 of the present invention makes to bore by setting cone basin portion 21
Pelvic part 21 is connect with wave 30 is played, to enhance cone basin portion 21 and play the interaction of wave 30, to can guarantee vibrating diaphragm 20 and vibration system
The stability of vibration of system.
3) it being made into cone basin shape compared to by 20 entirety of vibrating diaphragm, loudspeaker 100 of the present invention passes through setting elastic joint part 22, with
The corresponding cone basin oscillation space 2 in cone basin portion 21 is set, can effectively avoid vibrating diaphragm 20 and occur to do with magnetic circuit system in vibration processes
It relates to, so as to reduce the upper end of vibrating diaphragm 20 and magnetic circuit system under the premise of ensuring that the peak swing of voice coil 40 has the larger value
The distance between, the thickness of loudspeaker 100 is thinned.
Specifically, the outer edge in the cone basin portion 21 is neighbouring described in the magnetic circuit system in the projection on vibrating diaphragm 20
The edge of cone basin oscillation space 2 is arranged, effectively to avoid vibrating diaphragm 20 from interfering in vibration processes with magnetic circuit system.
Further, as shown in Figures 6 and 7, there is default ring between the inward flange and outer edge of the elastic joint part 22
Shape region, the voice coil 40 are connected in default annular region；The connection position set of i.e. described voice coil 40 and elastic joint part 22
In in default annular region.In this way, being connected to the outer edge of vibrating diaphragm 20 compared to voice coil 40, voice coil 40 can be made to be connected to vibrating diaphragm 20
Outer peripheral inside increase the amplitude of voice coil 40 with when vibrating diaphragm 20 vibrates same Oscillation Amplitude.
It is understood that the amplitude closer to the outer peripheral position of vibrating diaphragm 20, vibration is got over when vibrating diaphragm 20 is vibrated
It is small, compared to the outer edge that voice coil 40 is connected to vibrating diaphragm 20, loudspeaker 100 of the present invention, by the way that voice coil 40 is connected to vibrating diaphragm
20 outer peripheral inside can increase the amplitude of voice coil 40, when vibrating diaphragm 20 vibrates same Oscillation Amplitude to improve voice coil 40
Peak swing.In other words, loudspeaker 100 of the present invention can be led to by the way that voice coil 40 to be connected to the outer peripheral inside of vibrating diaphragm 20
Cross increase vibrating diaphragm 20 radial dimension come ensure voice coil 40 peak swing have the larger value under the premise of, reduce vibrating diaphragm 20 with
The distance between upper end of magnetic circuit system, the thickness of loudspeaker 100 is thinned.
It is understood that the outer edge of the default annular region should have a spacing with the outer edge of the vibrating diaphragm 20
From to guarantee that the peak swing of voice coil 40 has sufficiently large value；The inward flange of the default annular region should be with the elasticity
The inward flange (i.e. the outer edge in cone basin portion 21) of interconnecting piece 22 also have certain distance, with for the center magnetic path of magnetic circuit system it is enough
Installation space.
Optionally, the voice coil 40 is connected to the middle part of the elastic joint part 22.
In a particular embodiment, the shape of the vibrating diaphragm 20 can be circle, track type, ellipse or rectangular etc., described
The cross-sectional shape of voice coil 40 can be circle, track type, ellipse or rectangular etc.；It hereafter will be with the cross of vibrating diaphragm 20 and voice coil 40
The position of voice coil 40 is described in detail for the shape in section is generally circular, but the present invention and not only limit and this；It can
To understand, when vibrating diaphragm 20 and voice coil 40 are set as other shapes, analogy is carried out when by being provided in round with it, it is easy to obtain
Corresponding structure feature is obtained, need not be described in detail herein.
Further, as shown in FIG. 7 and 8, in the section of the center line of the excessively described vibrating diaphragm 20, the voice coil 40 and elasticity
There is first distance D4 between the link position of interconnecting piece 22 and the inward flange of elastic joint part 22, the elastic joint part 22
Between inward flange and outer edge there is second distance D3, the first distance D4 and the second distance D3 to have the first ratio,
First ratio K 1 is greater than or equal to 0.3, and is less than or equal to 0.7, i.e., the ratio of the described first distance D4 and second distance D3
Value is greater than or equal to 0.3, and is less than or equal to 0.7, i.e. 0.3≤K1=D4/D3≤0.7.In this way, elastic joint part 22 can be made
Part is set to the outside in magnetic circuit gap 1, is partially set to the inside in magnetic circuit gap 1.
It is understood that the voice coil 40 can be made too close to the outer of vibrating diaphragm 20 if first ratio K 1 is too small
Edge can not then effectively reduce the thickness of loudspeaker 100.If the first ratio K 1 is excessive, can make the voice coil 40 too close to
The inward flange (i.e. the outer edge in cone basin portion 21) of elastic joint part 22, then can greatly reduce the installation of the center magnetic path of magnetic circuit system
Space, to be unfavorable for the design of magnetic circuit system.So optionally, first ratio K 1 is greater than or equal to 0.3, and is less than
Or it is equal to 0.7.
More specifically, first ratio K 1 is chosen as being greater than or equal to 0.4, and is less than or equal to 0.6, to guarantee
Under the premise of the acoustical behavior of loudspeaker 100, loudspeaker 100 is further thinned.
Further, as shown in FIG. 7 and 8, in the section of the center line of the excessively described vibrating diaphragm 20, the elastic joint part 22
Inward flange (i.e. the outer edge in cone basin portion 21) and the center line of vibrating diaphragm 20 between have third distance D1, the voice coil 40 and bullet
Property interconnecting piece 22 link position and vibrating diaphragm 20 center line between have the 4th distance D2, the outside of the elastic joint part 22
There is the 5th distance D between edge and the center line of vibrating diaphragm 20, there is the second ratio between the third distance D1 and the 5th distance D
K2, second ratio K 2 is greater than or equal to 0.15, and is less than or equal to 0.55, i.e. 0.15≤K2=D1/D≤0.55.
There is third ratio K 3, the third ratio K 3 is greater than or equal between the 4th distance D2 and the 5th distance D
0.55, and it is less than or equal to 0.85, i.e. 0.55≤K3=D2/D≤0.85.
Specifically, the third ratio is greater than the second ratio
It is understood that second ratio K 2 indicates scale of the cone basin portion 21 compared to vibrating diaphragm 20, if second
Ratio K 2 is too small, then ratio shared by cone basin portion 21 can be made too small, then can weaken cone basin portion 21 significantly and play the phase between wave 30
Interaction, so that the stability of vibration of vibrating diaphragm 20 and vibrational system can be reduced.If the second ratio K 2 is excessive, cone basin portion 21 can be made
Shared ratio is excessive, then vibrating diaphragm 20 can be made to be easy to interfere with magnetic circuit system in vibration processes, to be unfavorable for being thinned
Loudspeaker 100.Based on this, optionally, the second ratio K 2K2 is greater than or equal to 0.15, and is less than or equal to 0.55.
More specifically, second ratio K 2 is greater than or equal to 0.2, and is less than or equal to 0.36, both to guarantee vibrating diaphragm
20 and vibrational system stability of vibration, and can realize thinned loudspeaker 100.
It is understood that the third ratio K 3 indicates the voice coil 40 when the vibrating diaphragm 20 vibrates same Oscillation Amplitude
The amplification size of amplitude the voice coil 40 can be made too close to the outer edge of vibrating diaphragm 20 if the third ratio K 3 is too small,
Then the amplification of the amplitude of voice coil 40 is too small, then can not effectively reduce the thickness of loudspeaker 100.If third ratio K 3 is excessive, can
Make the voice coil 40 that can then greatly reduce magnetic circuit too close to the inward flange (i.e. the outer edge in cone basin portion 21) of elastic joint part 22
The installation space of the center magnetic path of system, to be unfavorable for the promotion of the design of magnetic circuit system and the acoustical behavior of loudspeaker 100.
So optionally, the third ratio K 3 is greater than or equal to 0.55, and is less than or equal to 0.85.
More specifically, the third ratio K 3 is chosen as being greater than or equal to 0.6, and is less than or equal to 0.7, to guarantee
Under the premise of the acoustical behavior of loudspeaker 100, loudspeaker 100 is further thinned.
It is important to note that the relationship of above second ratio K 2 and third ratio K 3 is tight association, described
The size of two ratio Ks 2 will affect third ratio K 3.
Optionally, the ratio between the third distance D1 and the 4th distance D2 is golden section proportion (i.e. 0.618), and
Ratio (i.e. third ratio K 3) between the 4th distance D2 and the 5th distance D is golden section proportion.In this way, both can be compared with
The acoustical behavior of good raising loudspeaker 100, and loudspeaker 100 can largely be thinned.
Optionally, the inward flange (i.e. the outer edge in cone basin portion 21) of the elastic joint part 22 and the elastic joint part 22
Ratio between five distance D of the distance between outer edge be also golden section proportion.
It is arranged according to the above structure, the peak swing of the voice coil 40 can be made to be greater than or equal to 2 millimeters, and be less than or equal to
4 millimeters, to realize the large amplitude output of loudspeaker 100.More specifically, the peak swing of the voice coil 40 can be made to be greater than or wait
In 2.5 millimeters, and it is less than or equal to 3 millimeters.
Be arranged according to the above structure, can make the loudspeaker 100 integral thickness be greater than or equal to 7 millimeters, and be less than or
Equal to 12 millimeters, to realize the ultrathin design of loudspeaker 100.More specifically, the integral thickness of the loudspeaker 100 can be made
More than or equal to 8 millimeters, and it is less than or equal to 10 millimeters, further to realize the ultrathin design of loudspeaker 100.
Further, as shown in fig. 7, described one end for playing wave 30 is connected to the bottom in cone basin portion 21, the other end is connected to
Magnetic circuit system.In this way, by will play the bottom that wave 30 is connected to cone basin portion 21, it can make bullet wave 30 is more efficiently to prevent vibrating diaphragm 20
It is shaken during vibration, preferably to improve the stability of vibration of vibrating diaphragm 20 and vibrational system.
In a particular embodiment, as shown in Fig. 7,9-12, the configuration formula of the magnetic circuit system has very much, below in conjunction with magnetic
The citing of the generation type of road gap 1 and cone basin oscillation space 2 is illustrated；It should be noted that the structure of the magnetic circuit system
Form includes but is not limited to following several.
Further, as shown in figs 6-8, the magnetic circuit system include the first magnetic conductive part 50 and center magnetic path, described first
Magnetic conductive part 50 includes first substrate 51 and the first magnetic conduction protrusion for being convexly equipped in 51 surface of first substrate and being distributed in a ring
52, the center magnetic path is set to the inside of first magnetic conduction protrusion 52, the center magnetic path and first magnetic conduction protrusion 52
Between form the magnetic circuit gap 1, the cone basin oscillation space 2 is formed in the center magnetic path, during the bullet wave 30 is connected to
Heart magnetic circuit.
In the present embodiment, magnetic conductive part (such as the first magnetic conductive part 50 and the second magnetic conductive part 62, third magnetic conductive part hereinafter
70 etc.) the good material of magnetic property can be used to be made, for poly- magnetic, magnetic conduction etc.；Such as the making material of magnetic conductive part includes
But one of it is not limited to mild steel, pure iron and alloy etc. or a variety of.
It should be noted that " the first magnetic conduction protrusion 52 being distributed in a ring " at least contains with following two in the present invention
Justice:
1) first magnetic conduction protrusion 52 is set as ring structure.
2) first magnetic conduction protrusion 52 is arranged at intervals with multiple, and multiple first magnetic conductions protrusion 52 is enclosed a ring junction
Structure.
There is similar description below, can equally make this explanation, it is not necessary to repeat one by one.
In the present embodiment, as shown in figs 6-8, first magnetic conduction protrusion 52 is set as ring structure.To simplify magnetic circuit
The structure of system designs, and enhances the poly- magnetic effectiveness in magnetic circuit gap 1.
Further, as shown in figs 6-8, first magnetic conductive part 50 further include be convexly equipped in 51 surface of first substrate,
And the second magnetic conduction protrusion 53 being distributed in a ring, the interval of second magnetic conduction protrusion 53 are set to the inside of the first magnetic conduction protrusion 52,
First magnetic conduction protrusion 52 protrudes from the second magnetic conduction protrusion 53.
The center magnetic path includes the second magnetic conduction protrusion 53, the first magnet 1 being distributed in a ring and is arranged second in a ring
Magnetic conductive part 62, second magnetic conductive part 62 and the first magnet 1 are successively stacked at the second magnetic conduction protrusion 53, and first magnet 1 is set
Between the second magnetic conductive part 62 and the second magnetic conduction protrusion 53；Magnetic is formed between second magnetic conductive part 62 and the first magnetic conduction protrusion 52
The inside in road gap 1, second magnetic conduction protrusion 53, the first magnet 1 and the second magnetic conductive part 62 forms cone basin oscillation space 2.
In the present embodiment, retentive material can be used in magnet (such as the first magnet 1 and the second magnet 81 hereinafter)
It is sintered, effect is to provide the Constant charge soil with certain magnetic induction density, can be but be not limited to ferrimagnet, aluminium nickel
Cobalt magnet or neodymium iron boron magnetic body.
In this way, magnetic circuit system not only can be improved by the way that the second magnetic conduction protrusion 53 to be integrally formed on first substrate 51
Poly- magnetic and magnetic conduction effectiveness；Corresponding assembling steps can be also reduced, the installation process of loudspeaker 100 is simplified.
In the present embodiment, as shown in figs 6-8, first magnet 1 is set as ring structure, and the second magnetic conduction protrusion 53 is set
It is set to ring structure, second magnetic conductive part 62 is set as ring structure.
In the present embodiment, optionally, as shown in figs 6-8, described in the magnetic circuit system in the projection on vibrating diaphragm 20
The outer edge in cone basin portion 21 is located at the inside of the inner edge of the second magnetic conductive part 62.
Certainly, in other embodiments, the center magnetic path may be set to be other structures form, e.g., can make described
The assembly setting seperated with first substrate 51 of second magnetic conduction protrusion 53.
Further, as shown in figs 6-8, the inner edge of first magnet 1 inwardly laterally protrudes from the second magnetic conduction protrusion 53,
The lower surface for playing wave 30 and being connected to the inner edge of the first magnet 1, the other end for playing wave 30 are connected to cone basin portion 21.
In this way, by by it is described bullet wave 30 be connected to the first magnet 1 inner edge lower surface, can convenient for improve play wave 30 with
Bonding strength between magnetic circuit system, so that the stability of vibration for playing wave 30 and vibrating diaphragm 20 can be improved.
Certainly, in other embodiments, the wave 30 that plays also may connect to the other positions of center magnetic path, such as the second magnetic conduction
Part 62 or the second magnetic conduction protrusion 53 etc..
Further, as shown in figs 6-8, the loudspeaker 100 further includes thermal insulator 90, and the thermal insulator 90 is set to described
Magnetic circuit system, the bullet wave 30 are connected to thermal insulator 90.It is understood that when loudspeaker 100 works, the temperature of magnetic circuit system
Degree is higher, plays wave 30 and magnetic circuit system by setting thermal insulator 90 to connect, and the high temperature that can avoid magnetic circuit system influences bullet wave 30
Bonding strength between magnetic circuit system, so that the stability of vibration for playing wave 30 and vibrating diaphragm 20 can be improved.
Specifically, the thermal insulator 90 is set in center magnetic path；More specifically, the thermal insulator 90 is set to described first
The lower surface of the inner edge of magnet 1, the lower surface for playing wave 30 and being connected to thermal insulator 90.In this way, both can be to avoid the first magnet 1
High temperature bullet wave 30 when work and the connection structure between wave 30 and the first magnet 1 is played, plays wave 30 and the to can be improved
Connective stability between one magnet 1, to improve the stability of vibration for playing wave 30 and vibrating diaphragm 20；It can also improve and play wave 30 and the
Bonding strength between one magnet 1, to improve the stability of vibration for playing wave 30 and vibrating diaphragm 20.
Further, as shown in figs 6-8, the heat dissipation being connected to cone basin oscillation space 2 is offered on the first substrate 51
Through-hole 511, the loudspeaker 100 further include radiating piece 512, and the radiating piece 512 is sealedly attached to the thermal vias 511.
It is made specifically, the preferable material of heat-conductive characteristic (such as silver, copper, aluminium or silicon) can be used in the radiating piece 512,
In order to rapid cooling.
In this way, can not only be waited with cone basin oscillation space 2 in loudspeaking by setting radiating piece 512 with sealed heat-dissipating through-hole 511
Confined space is formed in device 100, so that vibrating diaphragm 20 and bullet wave 30 move in the confined space, so as to be effectively prevented from sound
Circle 40 waves, wipes the problems such as circle, can also rapidly be radiated by radiating piece 512, to avoid temperature mistake in loudspeaker 100
It is high.
Optionally, the size of the thermal vias 511 is greater than the size of the internal diameter of the second magnetic conduction protrusion 53, so that described the
Interior annular distance among two magnetic conduction protrusion 53 is set to the bottom of thermal vias 511, in order to install radiating piece 512.
Optionally, the surface of the separate cone basin oscillation space 2 of the radiating piece 512 is equipped with radiator structure, so can be into one
Accelerate radiating rate in step ground.
Further, as shown in figs 6-8, the outer rim of the first substrate 51 protrudes from the first magnetic conduction protrusion laterally outwardly
52；The bottom of the bracket 10 is connected to the outer rim of first substrate 51.So, it may not be necessary to add special connection over the mount 10
Structure with magnetic circuit system to connect.
Together refering to Fig. 3, the bracket 10 includes bottom plate 11 and the coaming plate 12 for being convexly equipped in 11 surface of bottom plate, the bottom plate 11
It is equipped with installation through-hole 111, first magnetic conductive part 50 is set in installation through-hole 111, and the bottom plate 11 is connected to the first base
The upper surface of the outer rim of plate 51, the elastic joint part 22 are connected to coaming plate 12.In this way, connecting bracket 10 and first can be convenient for
On the basis of magnetic conductive part 50, the bonding strength of bracket 10 and the first magnetic conductive part 50 can be increased, to improve the whole steady of loudspeaker 100
It is qualitative.
It is understood that since voice coil 40 is connected to the inside of elastic joint part 22, then elastic joint part 22 is outer
Edge must protrude from the first magnetic conduction protrusion 52 laterally outwardly, for the ease of fixed elastic joint part 22 and be convenient for elastic joint part 22
Vibration can make to be equipped with certain predetermined distance between coaming plate 12 and the first magnetic conduction protrusion 52, which can be according to voice coil
40 radial dimension of link position and ring 24 on elastic joint part 22 etc. determines, that is, needs to increase bracket 10 and loudspeaking
The radial dimension of device 100, to realize the thickness that loudspeaker 100 is thinned.
In specific implementation, the loudspeaker 100 also typically includes ring 24, and the inward flange of the ring 24 is connected to bullet
The outer edge of property interconnecting piece 22, the outer edge of the ring 24 are connected on bracket 10.
In the present embodiment, specifically, the bracket 10 further includes the company extended to form by the outside bending in 12 upper end of coaming plate
Ring flat-plate 13 is connect, the connection ring flat-plate 13 is annular connecting plate, and the elastic joint part 22 is connected to the upper surface of connection ring flat-plate 13.
More specifically, the outer edge of the ring 24 is connected to the upper surface of connection ring flat-plate 13.In this way, can convenient for increase ring 24 with
The connection area of bracket 10, in order to improve the bonding strength and connective stability between ring 24 and bracket 10.
Optionally, as shown in figure 3, the outer edge of the connection ring flat-plate 13 is equipped with upward flanging 14, at least to protect folding
Ring 24.
Further, as shown in Fig. 5 and Fig. 7, the voice coil 40 has lead 43, and the bullet is fixed in 43 part of lead
The lower surface of property interconnecting piece 22.In this way, lead 43 can be made to vibrate with vibrating diaphragm 20, to reduce lead 43 to voice coil 40 and vibrating diaphragm
The influence of 20 vibrations, to further improve the stability of vibration of voice coil 40 and vibrating diaphragm 20.
Optionally, the voice coil 40 includes the coil 42 that speech coil framework 41 and surrounding portion speech coil framework 41 are wound, voice coil
The upper end of skeleton 41 is connected to elastic joint part 22, and coil 42 is set in magnetic circuit gap 1.More specifically, as shown in fig. 7, institute
Coil 42 is stated with lead 43, the lead 43 is set to the table of speech coil framework 41 close to one end of voice coil 40 with upwardly extending
Face.
When voice coil 40 is connected on elastic joint part 22, the lead 43 can be made to extend outwardly close to one end of voice coil 40
Ground is set to the lower surface of elastic joint part 22, so that the lower surface of the elastic joint part 22 is fixed in 43 part of lead.
Optionally, as shown in Fig. 5 and Fig. 7, the lead 43 has two, and two leads 43 are symmetrically disposed on voice coil
40 two sides.
Specifically, as shown in fig. 7, be additionally provided with connecting terminal 15 on the bracket 10, the lead 43 and the connecting terminal
15 electrical connections.
Optionally, the connecting terminal 15 is symmetrically provided with two over the mount 10, and two connecting terminals 15 are one by one
Correspondence is electrically connected to two leads 43.
Specifically, the elastic joint part 22 is plane diaphragm structure.
Optionally, as illustrated in figures 4 and 7, the elastic joint part 22 includes on the extending direction of the center line of vibrating diaphragm 20
The first annular interconnecting piece 221 being spaced apart and the second annular interconnecting piece 222, the first annular interconnecting piece 221 and the second ring
Shape interconnecting piece 222 is smoothly connected, and the first annular interconnecting piece 221 is set to the periphery of the second annular interconnecting piece 222, and described first
Annular interconnecting piece 221 is connected to bracket 10, and the described second annular interconnecting piece 222 is connected to the periphery in cone basin portion 21.
Optionally, as illustrated in figures 4 and 7, the first annular interconnecting piece 221 and the second annular interconnecting piece 222 are plane
Diaphragm structure.
Optionally, as illustrated in figures 4 and 7, multiple protrusions 23 are distributed on the elastic joint part 22, in this way, at least may be used
Enhance the structural strength of elastic joint part 22.
Optionally, as illustrated in figures 4 and 7, multiple protrusions 23 are distributed in the side in cone basin portion 21 in a ring.
Optionally, as illustrated in figures 4 and 7, the protrusion 23 extends from inside to outside, and the protrusion 23 is set in deflection
It sets.
Optionally, as shown in Fig. 1,4 and 7, the protrusion 23 is arranged in arcuation.
In an alternative embodiment of the invention, as shown in Figures 9 and 10, the magnetic circuit system includes third magnetic conductive part 70 and side magnetic
Road, the third magnetic conductive part 70 include the second substrate 71 and the annular magnetic-conductance portion 72 for being convexly equipped in 71 surface of the second substrate, institute
The side that side magnetic circuit is set to annular magnetic-conductance portion 72 is stated, forms the magnetic circuit gap 1 between the annular magnetic-conductance portion 72 and side magnetic circuit,
The inside of the annular magnetic-conductance portion 72 forms cone basin oscillation space 2.Optionally, described one end for playing wave 30 is connected to annular magnetic conduction
The inner sidewall in portion 72, the other end are connected to the bottom in cone basin portion 21.
In this embodiment, specifically, as shown in Figures 9 and 10, the side magnetic circuit includes the second magnet being distributed in a ring
81 and the 4th magnetic conductive part 82 that is distributed in a ring, second magnet 81 and the 4th magnetic conductive part 82 are successively stacked at the second substrate 71
Surface, and second magnet 81 is set between the 4th magnetic conductive part 82 and the second substrate 71；The annular magnetic-conductance portion 72 with
Magnetic circuit gap 1 is formed between 4th magnetic conductive part 82.
In this embodiment, optionally, the inner sidewall of the annular magnetic-conductance portion 72 is convexly equipped with interior interconnecting piece (not shown), institute
It states and plays the lower surface that wave 30 is connected to the interior interconnecting piece.
In this embodiment, alternatively it is also possible to which thermal insulator 90 is arranged between wave 30 and annular magnetic-conductance portion 72 playing.More
Specifically, the thermal insulator 90 can be set to the lower surface of interior interconnecting piece；Alternatively, interior interconnecting piece can also be not provided with, and directly will be every
Warmware 90 is connected to the medial surface of annular magnetic-conductance portion 72, connect thermal insulator 90 with wave 30 is played.
In this embodiment, as shown in Figures 9 and 10, the thermal vias 511 is opened in the second substrate 71, with realize with
Cone basin oscillation space 2 is connected to, in the sealed connection of radiating piece 512 and thermal vias 511.In this embodiment, optionally, described to dissipate
Heat through-hole 511 is stepped hole, in order to install radiating piece 512.
In this embodiment, the structure of the bracket 10 and a upper embodiment are essentially identical, and e.g., the bracket 10 includes bottom
Plate 11, coaming plate 12, connection ring flat-plate 13 and flanging 14 etc., need not be described in detail herein.
It should be noted that in this embodiment, the connection relationship of the bracket 10 and magnetic circuit system does adaptive change；
Specifically, as shown in Figures 9 and 10, the annular magnetic-conductance portion 72 is mounted in the installation through-hole 111 on bottom plate 11, and described second
The outer rim of substrate 71 protrudes from annular magnetic-conductance portion 72 laterally outwardly, and the bottom plate 11 is connected to the outer rim of the second substrate 71
Upper surface.
In still another embodiment of the process, the difference with another embodiment of the present embodiment is, in the embodiment,
72 upper end of the annular magnetic-conductance portion is additionally provided with the 5th magnetic conductive part 73.
I other words in this embodiment, as shown in FIG. 11 and 12, the magnetic circuit system includes third magnetic conductive part the 70, the 5th
Magnetic conductive part 73 and side magnetic circuit, the third magnetic conductive part 70 include that the second substrate 71 is led with the annular for being convexly equipped in 71 surface of the second substrate
Magnetic portion 72, the side magnetic circuit are set to the side of annular magnetic-conductance portion 72, and the 5th magnetic conductive part 73 is distributed in annular magnetic conduction in a ring
The upper end in portion 72 forms the magnetic circuit gap 1, the annular magnetic-conductance portion 72 between the 5th magnetic conductive part 73 and the side magnetic circuit
The cone basin oscillation space 2 is formed with the inside of the 5th magnetic conductive part 73.
In this embodiment, as shown in FIG. 11 and 12, optionally, the inner edge of the 5th magnetic conductive part 73 is inwardly laterally protruding
In annular magnetic-conductance portion 72, described one end for playing wave 30 is connected to the lower surface of the inner edge of the 5th magnetic conductive part 73, the bullet wave 30
The other end is connected to cone basin portion 21.
In this embodiment, as shown in FIG. 11 and 12, alternatively it is also possible to play between wave 30 and magnetic circuit system setting every
Warmware 90.More specifically, the thermal insulator 90 can be set to the lower surface of the inner edge of the 5th magnetic conductive part 73.
In this embodiment, as shown in FIG. 11 and 12, optionally, the structure of the side magnetic circuit and bracket 10 and upper one is implemented
Example is essentially identical, and e.g., the side magnetic circuit includes the second magnet 81 and the 4th magnetic conductive part 82 etc.；The bracket 10 include bottom plate 11,
Coaming plate 12, connection ring flat-plate 13 and flanging 14 etc.；It need not be described in detail herein.
It should be noted that the loudspeaker 100 in example of the present invention, is able to bear biggish power, power can reach
15W or more；And the loudspeaker 100 is ultra-thin, high sensitivity, resonance frequency is low.
The present invention also proposes a kind of audio frequency apparatus, which includes loudspeaker, the specific structure reference of the loudspeaker
Above-described embodiment at least has since audio frequency apparatus of the present invention uses whole technical solutions of above-mentioned all embodiments
All beneficial effects brought by the technical solution of above-described embodiment, this is no longer going to repeat them.
Wherein, the audio frequency apparatus is chosen as liquid crystal display or TV etc.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (17)
1. a kind of loudspeaker characterized by comprising
Bracket；
Magnetic circuit system, is installed on the bracket, and the magnetic circuit system has magnetic circuit gap and on the inside of the magnetic circuit gap
Cone basin oscillation space；And
Vibrational system, the vibrational system include vibrating diaphragm, play wave and voice coil, and the vibrating diaphragm includes cone basin portion and is connected to the cone
The elastic joint part of pelvic part periphery, the outer edge of the elastic joint part are connected to the bracket, and the bottom in the cone basin portion is set
In in the cone basin oscillation space, the bullet wave connects the cone basin portion and the magnetic circuit system；One end of the voice coil connects
In the elastic joint part, the other end of the voice coil is protruded into the magnetic circuit gap.
2. loudspeaker as described in claim 1, which is characterized in that have between the inward flange and outer edge of the elastic joint part
There is default annular region, the voice coil is connected in the default annular region, in the same Oscillation Amplitude of the diaphragm oscillations
When, increase the amplitude of the voice coil.
3. loudspeaker as claimed in claim 2, which is characterized in that in the section of the center line of the excessively described vibrating diaphragm, the sound
There is first distance D4, the bullet between the inward flange of the link position and the elastic joint part of circle and the elastic joint part
Property interconnecting piece inward flange and outer edge between there is second distance D3, the first distance D4 has with the second distance D3
First ratio, first ratio is greater than or equal to 0.3, and is less than or equal to 0.7.
4. loudspeaker as claimed in claim 2, which is characterized in that in the section of the center line of the excessively described vibrating diaphragm, the bullet
Property interconnecting piece inward flange and the vibrating diaphragm center line between there is third distance D1, the voice coil and the elastic joint part
Link position and the vibrating diaphragm center line between there is the 4th distance D2, the outer edge of the elastic joint part and the vibration
There is the 5th distance D between the center line of film, there is the second ratio, institute between the third distance D1 and the 5th distance D
The second ratio is stated more than or equal to 0.15, and less than 0.55；There is third between the 4th distance D2 and the 5th distance D
Ratio, the third ratio is greater than or equal to 0.55, and is less than or equal to 0.85；The third ratio is greater than second ratio
Value.
5. loudspeaker as described in claim 1, which is characterized in that the integral thickness of the loudspeaker is greater than or equal to 7 millimeters,
And it is less than or equal to 12 millimeters.
6. loudspeaker as described in claim 1, which is characterized in that described one end for playing wave is connected to the bottom in the cone basin portion
Portion, the other end are connected to the magnetic circuit system.
7. the loudspeaker as described in any one of claim 1 to 6, which is characterized in that the magnetic circuit system is led including first
Magnetic part and center magnetic path, first magnetic conductive part include first substrate and are convexly equipped in the first substrate surface and divide in a ring
First magnetic conduction protrusion of cloth, the center magnetic path are set to the inside of first magnetic conduction protrusion, the center magnetic path and described the
The magnetic circuit gap is formed between one magnetic conduction protrusion, the middle part of the center magnetic path forms the cone basin oscillation space.
8. loudspeaker as claimed in claim 7, which is characterized in that first magnetic conductive part further includes being convexly equipped in first base
Plate surface and the second magnetic conduction protrusion being distributed in a ring, second magnetic conduction protrusion are set to the inside of first magnetic conduction protrusion,
First magnetic conduction protrusion protrudes from second magnetic conduction protrusion；
The center magnetic path include second magnetic conduction protrusion, the first magnet being distributed in a ring and in a ring setting second lead
Magnetic part, second magnetic conductive part and first magnet are successively stacked at second magnetic conduction protrusion, and first magnet is set to
Between second magnetic conductive part and second magnetic conduction protrusion；
The magnetic circuit gap, second magnetic conduction protrusion, institute are formed between second magnetic conductive part and first magnetic conduction protrusion
The inside for stating the first magnet and second magnetic conductive part forms the cone basin oscillation space.
9. loudspeaker as claimed in claim 8, which is characterized in that the inner edge of first magnet inwardly laterally protrudes from described
Second magnetic conduction protrusion, the lower surface for playing wave and being connected to the inner edge of first magnet, the other end for playing wave are connected to
The cone basin portion.
10. loudspeaker as claimed in claim 9, which is characterized in that the loudspeaker further includes thermal insulator, and the thermal insulator is set
In the lower surface of the inner edge of first magnet, the lower surface for playing wave and being connected to the thermal insulator.
11. loudspeaker as claimed in claim 7, which is characterized in that offer on the first substrate and vibrated with the cone basin
The thermal vias of space connection, the loudspeaker further includes radiating piece, and the radiating piece is sealedly attached to the thermal vias.
12. loudspeaker as claimed in claim 7, which is characterized in that the outer rim of the first substrate protrudes from institute laterally outwardly
State the first magnetic conduction protrusion；The bracket includes bottom plate and the coaming plate for being convexly equipped in the backplate surface, and the bottom plate is equipped with installation
Through-hole, first magnetic conductive part is set in the mounting through hole, and the bottom plate is connected to the upper of the outer rim of the first substrate
Surface.
13. the loudspeaker as described in any one of claim 1 to 6, which is characterized in that the magnetic circuit system includes that third is led
Magnetic part and side magnetic circuit, the third magnetic conductive part include the second substrate and the annular magnetic-conductance portion for being convexly equipped in the second substrate surface,
The side magnetic circuit is set to the side of the annular magnetic-conductance portion, forms the magnetic circuit between the annular magnetic-conductance portion and the side magnetic circuit
Gap, annular magnetic-conductance portion inside form the cone basin oscillation space.
14. loudspeaker as claimed in claim 13, which is characterized in that the side magnetic circuit includes the second magnet being distributed in a ring
The 4th magnetic conductive part being distributed in a ring, second magnet and the 4th magnetic conductive part are successively stacked at the second substrate table
Face, and second magnet is set between the 4th magnetic conductive part and the second substrate；The annular magnetic-conductance portion and described the
The magnetic circuit gap is formed between four magnetic conductive parts.
15. the loudspeaker as described in any one of claim 1 to 6, which is characterized in that the magnetic circuit system includes that third is led
Magnetic part, the 5th magnetic conductive part and side magnetic circuit, the third magnetic conductive part include the second substrate and are convexly equipped in the second substrate surface
Annular magnetic-conductance portion, the side magnetic circuit are set to the side of the annular magnetic-conductance portion, and the 5th magnetic conductive part is distributed in described in a ring
The upper end of annular magnetic-conductance portion forms the magnetic circuit gap, the annular magnetic conduction between the 5th magnetic conductive part and the side magnetic circuit
Portion and the inside of the 5th magnetic conductive part form the cone basin oscillation space；
The inner edge of 5th magnetic conductive part inwardly laterally protrudes from the annular magnetic-conductance portion, and described one end for playing wave is connected to described
The lower surface of the inner edge of 5th magnetic conductive part, the other end for playing wave are connected to the cone basin portion.
16. the loudspeaker as described in any one of claim 1 to 6, which is characterized in that the voice coil has lead, described
Lead portion is fixed on the lower surface of the elastic joint part.
17. a kind of audio devices, which is characterized in that including the loudspeaker as described in any one of claim 1 to 16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728059.5A CN110366080B (en) | 2019-08-07 | 2019-08-07 | Speaker and audio device |
| PCT/CN2019/129007 WO2021022774A1 (en) | 2019-08-07 | 2019-12-27 | Loudspeaker and audio device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728059.5A CN110366080B (en) | 2019-08-07 | 2019-08-07 | Speaker and audio device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110366080A true CN110366080A (en) | 2019-10-22 |
| CN110366080B CN110366080B (en) | 2021-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910728059.5A Active CN110366080B (en) | 2019-08-07 | 2019-08-07 | Speaker and audio device |
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| Country | Link |
|---|---|
| CN (1) | CN110366080B (en) |
| WO (1) | WO2021022774A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021022774A1 (en) * | 2019-08-07 | 2021-02-11 | 歌尔股份有限公司 | Loudspeaker and audio device |
| CN113225502A (en) * | 2020-02-06 | 2021-08-06 | 海信视像科技股份有限公司 | Display device and speaker |
| CN114422922A (en) * | 2021-12-28 | 2022-04-29 | 歌尔科技有限公司 | Sound production device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115086843B (en) * | 2021-03-16 | 2023-11-28 | 华为技术有限公司 | Speaker and electronic equipment |
| CN114363778B (en) * | 2021-12-31 | 2023-12-22 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
| CN114466294A (en) * | 2022-03-24 | 2022-05-10 | 歌尔科技有限公司 | Speaker and electronic apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021022774A1 (en) * | 2019-08-07 | 2021-02-11 | 歌尔股份有限公司 | Loudspeaker and audio device |
| CN113225502A (en) * | 2020-02-06 | 2021-08-06 | 海信视像科技股份有限公司 | Display device and speaker |
| CN113225502B (en) * | 2020-02-06 | 2022-02-01 | 海信视像科技股份有限公司 | Display device and speaker |
| CN114422922A (en) * | 2021-12-28 | 2022-04-29 | 歌尔科技有限公司 | Sound production device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110366080B (en) | 2021-05-07 |
| WO2021022774A1 (en) | 2021-02-11 |
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