CN209267800U - Dustproof cover and loudspeaker - Google Patents
Dustproof cover and loudspeaker Download PDFInfo
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- CN209267800U CN209267800U CN201821491183.1U CN201821491183U CN209267800U CN 209267800 U CN209267800 U CN 209267800U CN 201821491183 U CN201821491183 U CN 201821491183U CN 209267800 U CN209267800 U CN 209267800U
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- arc
- frame
- loudspeaker
- dustproof cover
- ring
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Abstract
It includes arc covers that the utility model, which relates to a kind of dustproof cover and loudspeaker, the dustproof cover, has arc-shaped concave at the top of the arcuate surface of the arc covers, and the arc-shaped concave is towards the arc covers sunken inside, the arc-shaped concave and the concentric setting of the arc covers.A kind of loudspeaker, including bottom frame, frame, magnetic circuit component, drum paper, voice coil and above-mentioned dustproof cover.Above-mentioned dustproof cover structure design rationally, by the way that arc-shaped concave is arranged at the top of the arcuate surface of arc covers, is effectively reduced the low ebb relative value of the high band of the frequency response curve of loudspeaker, is effectively improved the frequency response characteristic of loudspeaker；And relative to conventional loudspeakers, the total harmonic distortion of the loudspeaker of the utility model is lower in the distortion of low-frequency range, is conducive to the sound quality Performance And Reliability for improving loudspeaker.
Description
Technical field
The utility model relates to speaker technology fields, more particularly to a kind of dustproof cover and loudspeaker.
Background technique
Loudspeaker is also known as " loudspeaker ", is a kind of very common electro-acoustic transducer device, in the electronic electric equipment of sounding
It can be seen.Loudspeaker is to convert the electrical signal to acoustical signal and be radiated the electroacoustic transducer gone in air.Traditional
Loudspeaker is divided into electrodynamic type, electromagnetic type, electrostatic, piezoelectric type, ionic formula and pneumatic type etc. by working principle.In each type
In loudspeaker, with it is most, be most widely dynamic speaker, also known as coil-moving speaker.
Metal fillings and dust enter magnetic gap and cause loudspeaker tonequality bad in order to prevent, generally in the drum paper of loudspeaker
A dustproof cover is installed in bottom of chamber portion, and the dustproof cover structure design for being conventionally used to loudspeaker is unreasonable, leads to the frequency response of loudspeaker
There is apparent low ebb, the total harmonic distortion of loudspeaker in the high band of (Frequency Response, abbreviation FR) curve
The low-frequency range of (Total Harmonic Distortion, abbreviation THD) be distorted it is high so that the sound quality performance of loudspeaker and reliable
Property is low.
Utility model content
Based on this, it is necessary to aiming at the problem that current traditional technology, provide a kind of dustproof cover and raising with the dustproof cover
Sound device.
The arcuate surface top of a kind of dustproof cover, including arc covers, the arc covers has arc-shaped concave, the arc-shaped concave
Towards the arc covers sunken inside, the arc-shaped concave and the concentric setting of the arc covers.
Above-mentioned dustproof cover structure design rationally, by the way that arc-shaped concave is arranged at the top of the arcuate surface of arc covers, is effectively reduced
The low ebb relative value of the high band of the frequency response curve of loudspeaker, is effectively improved the frequency response characteristic of loudspeaker；And it is opposite
It is lower in the distortion of low-frequency range in the total harmonic distortion of conventional loudspeakers, the loudspeaker of the utility model, be conducive to improve loudspeaking
The sound quality Performance And Reliability of device.
The arc-shaped concave includes the ring of circular arc concave part and the connection circular arc concave part in one of the embodiments,
Shape convex arc face.
The maximum cup depth of the arc-shaped concave is less than the inner concave of the arc covers in one of the embodiments,
The depth of maximum recessed portion.
It in one of the embodiments, further include the connection ring for connecting the arc covers annular end.
Transition rings are provided between the connection ring and the arc covers annular end in one of the embodiments, it is described
The outer surface of transition rings is convex globoidal.
The material of the transition rings, connection ring and arc covers is for metal in one of the embodiments,.
A kind of loudspeaker, including bottom frame, the frame being mounted on the bottom frame, the magnetic circuit group being mounted in the bottom frame
Part, the drum paper being mounted in the frame, the voice coil for connecting the bulging paper and the dustproof cover for being mounted on the bulging paper intracavity bottom.
An accommodating chamber is equipped in the bottom frame in one of the embodiments, it is intracavitary that the magnetic circuit component is mounted on cavity；
One end of the frame is connect with one end of the bottom frame, and frame connection corresponding with the accommodating chamber；The voice coil
One end is connect with the bottom end of the bulging paper, and the other end of the voice coil extends on the magnetic circuit component.
One end of the frame is provided with fixed frame in one of the embodiments, and the fixed frame includes snap ring and company
Connect the dead ring of the snap ring, the snap ring is tightly attached to bottom frame towards on one end of the frame, and the dead ring is tightly attached to institute
It states on the periphery wall of bottom frame.
The frame is equipped with annular slot far from one end of the bottom frame in one of the embodiments,；The bulging paper bag
It includes cone basin, be connected to the outer peripheral ring of the cone basin and the connection outer peripheral pad side of ring, the corresponding card in the pad side
It is located in the annular slot.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the loudspeaker of a better embodiment of the utility model；
Fig. 2 is bottom frame, frame and the drum paper assembled sectional view of the loudspeaker of Fig. 1；
Fig. 3 is the structural schematic diagram of the dustproof cover of the loudspeaker of Fig. 1；
Fig. 4 is the cross-sectional view of the dustproof cover of the loudspeaker of Fig. 3；
Fig. 5 is the frequency response curve comparison diagram of the utility model loudspeaker and conventional loudspeakers；
Fig. 6 is the loudspeaker of the utility model and the total harmonic distortion curve comparison figure of conventional loudspeakers.
The meaning of each label in attached drawing are as follows:
Bottom frame 10, cavity chamber 11, frame 20, fixed frame 21, snap ring 22, dead ring 23, annular slot 24, drum paper 30, cone
Basin 31, ring 32, pad side 33, dustproof cover 40, arc covers 41, arc-shaped concave 42, circular arc concave part 43, annular convex globoidal portion 44,
Connection ring 45, transition rings 46.
Specific embodiment
The utility model will be described more fully below for the ease of understanding the utility model,.But this is practical
It is novel to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations
The purpose of example is to make the understanding of the disclosure of the utility model more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement are
For illustrative purposes.
Please refer to figs. 1 to 4, is the loudspeaker of one better embodiment of the utility model, including bottom frame 10, is mounted on bottom
Frame 20 on frame 10, the magnetic circuit component being mounted in bottom frame 10, the drum paper 30 being mounted in frame 20, the sound for connecting drum paper 30
Enclose and be mounted on the dustproof cover 40 of bulging paper intracavity bottom；Referring to FIG. 2, an accommodating chamber 11 is equipped in bottom frame 10, magnetic circuit component peace
In cavity chamber 11；One end of frame 20 is connect with one end of bottom frame 10, and the connection corresponding with accommodating chamber 11 of 20 inner cavity of frame；
One end of voice coil is connect with the bottom end of drum paper 30, and the other end of voice coil extends on magnetic circuit component.
In the present embodiment, bottom frame 10 is cylindrical body setting.One end of frame 20 is provided with fixed frame 21, and fixed frame 21 wraps
The dead ring 23 of snap ring 22 and Joining clasp 22 is included, snap ring 22 is made with the integrated molding of dead ring 23, and snap ring 22 is tightly attached to bottom frame
10 towards on one end of frame 20, and dead ring 23 is tightly attached on the periphery wall of bottom frame 10.Frame 20 is set far from one end of bottom frame 10
There is annular slot 24, annular slot 24 is connected to 20 inner cavity of frame, and annular slot 24 is set up for drum paper 30.
Drum paper 30 includes cone basin 31, is connected to the outer peripheral ring 32 of cone basin 31 and the connection outer peripheral pad of ring 32
Side 33, in the present embodiment, cone basin 31, ring 32 and pad side 33 are integrally formed and are made；Pad side 33 correspondence is fastened on annular slot
In 24, and pads side 33 and connect with 24 bottom adhe of annular slot.
Fig. 3 and Fig. 4 is please referred to, dustproof cover 40 includes arc covers 41 and the connection ring 45 for connecting 41 annular end of arc covers, arc
There is arc-shaped concave 42, arc-shaped concave 42 is towards 41 sunken inside of arc covers, arc-shaped concave 42 and arc at the top of the arcuate surface of shape lid 41
The concentric setting of lid 41, i.e. arc-shaped concave 42 arcuately 41 place sphere of lid diametrical direction setting；Further, arc-shaped concave
42 include circular arc concave part 43 and the annular convex globoidal portion 44 for connecting circular arc concave part 43.In the present embodiment, arc-shaped concave 42
Maximum cup depth be less than arc covers 41 inner concave maximum recessed portion depth.The interior bottom of chamber of connection ring 45 and drum paper 30
Portion's contact, further, the intracavity bottom of connection ring 45 and drum paper 30, which bonds, to be connected.In the present embodiment, connection ring 45 and arc
Transition rings 46 are provided between 41 annular end of shape lid, the outer surface of transition rings 46 is convex globoidal.In the present embodiment, transition rings
46, connection ring 45 and the integrated molding of arc covers 41 are made, and the material of transition rings 46, connection ring 45 and arc covers 41 is gold
Belong to, such as aluminium.
Referring to FIG. 5, the frequency response of the loudspeaker of the utility model high band curve relative to conventional loudspeakers
It is more stable in the curve of high band compared with frequency response, the low ebb phase of the frequency response of the loudspeaker of the utility model in high band
Conventional loudspeakers frequency response is less than in the low ebb relative value of high band to value.
Referring to FIG. 6, the low-frequency range curve of the total harmonic distortion of the loudspeaker of the utility model is relative to conventional loudspeakers
The low-frequency range curve of total harmonic distortion is more steady, and the low-frequency range distortion of the total harmonic distortion of the loudspeaker of the utility model is lower than
The low-frequency range of conventional loudspeakers total harmonic distortion is distorted.
What is needed is, it is however generally that, 30-150Hz is low-frequency range, and 150-500Hz is middle low-frequency range, 500-5KHz
For medium-high frequency section, 5K-16KHz high band.
The dustproof cover 40 of the loudspeaker of the utility model is reasonable in design, by setting at the top of the arcuate surface of arc covers 41
Arc-shaped concave 42 is set, the low ebb relative value of the high band of the frequency response curve of loudspeaker is effectively reduced, is effectively improved loudspeaker
Frequency response characteristic；And relative to conventional loudspeakers, the mistake of the total harmonic distortion of the loudspeaker of the utility model in low-frequency range
It is very lower, be conducive to the sound quality Performance And Reliability for improving loudspeaker.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of dustproof cover, which is characterized in that including arc covers, there is arc-shaped concave, institute at the top of the arcuate surface of the arc covers
Arc-shaped concave is stated towards the arc covers sunken inside, the arc-shaped concave and the concentric setting of the arc covers.
2. dustproof cover according to claim 1, which is characterized in that the arc-shaped concave includes circular arc concave part and connection institute
State the annular convex globoidal portion of circular arc concave part.
3. dustproof cover according to claim 1, which is characterized in that the maximum cup depth of the arc-shaped concave is less than described
The depth of the maximum recessed portion of the inner concave of arc covers.
4. dustproof cover according to claim 1, which is characterized in that further include the connection for connecting the arc covers annular end
Ring.
5. dustproof cover according to claim 4, which is characterized in that set between the connection ring and the arc covers annular end
Transition rings are equipped with, the outer surface of the transition rings is convex globoidal.
6. dustproof cover according to claim 5, which is characterized in that the material of the transition rings, connection ring and arc covers is equal
For for metal.
7. a kind of loudspeaker, which is characterized in that including bottom frame, the frame being mounted on the bottom frame, be mounted in the bottom frame
Magnetic circuit component, be mounted in the frame drum paper, the connection bulging paper voice coil and be mounted on the bulging paper intracavity bottom
The dustproof cover as described in claim 1-6.
8. loudspeaker according to claim 7, which is characterized in that be equipped with an accommodating chamber, the magnetic circuit group in the bottom frame
It is intracavitary that part is mounted on cavity；One end of the frame is connect with one end of the bottom frame, and the frame and the accommodating chamber pair
It should be connected to；One end of the voice coil is connect with the bottom end of the bulging paper, and the other end of the voice coil extends to the magnetic circuit component
On.
9. loudspeaker according to claim 8, which is characterized in that one end of the frame is provided with fixed frame, described solid
Determine the dead ring that frame includes snap ring and the connection snap ring, the snap ring is tightly attached to bottom frame towards on one end of the frame, institute
Dead ring is stated to be tightly attached on the periphery wall of the bottom frame.
10. loudspeaker according to claim 8, which is characterized in that the frame is equipped with ring far from one end of the bottom frame
Shape card slot；The bulging paper includes cone basin, is connected to the outer peripheral ring of the cone basin and the connection outer peripheral pad of ring
Side, the pad side correspondence are fastened in the annular slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821491183.1U CN209267800U (en) | 2018-09-12 | 2018-09-12 | Dustproof cover and loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821491183.1U CN209267800U (en) | 2018-09-12 | 2018-09-12 | Dustproof cover and loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209267800U true CN209267800U (en) | 2019-08-16 |
Family
ID=67552761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821491183.1U Active CN209267800U (en) | 2018-09-12 | 2018-09-12 | Dustproof cover and loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209267800U (en) |
-
2018
- 2018-09-12 CN CN201821491183.1U patent/CN209267800U/en active Active
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