CN109246539A - A kind of thin speaker case loading elastic sheet - Google Patents
A kind of thin speaker case loading elastic sheet Download PDFInfo
- Publication number
- CN109246539A CN109246539A CN201811206139.6A CN201811206139A CN109246539A CN 109246539 A CN109246539 A CN 109246539A CN 201811206139 A CN201811206139 A CN 201811206139A CN 109246539 A CN109246539 A CN 109246539A
- Authority
- CN
- China
- Prior art keywords
- low frequency
- elastic sheet
- sound
- thin speaker
- woofer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920002943 EPDM rubber Polymers 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 16
- 238000005452 bending Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The present invention relates to a kind of thin speaker casees for loading elastic sheet, comprising: at least one thin speaker；Cabinet accommodates at least one described thin speaker；It is provided with low frequency right above thin speaker acoustic radiating and leads sound plate, to improve the low frequency radiation direction of thin speaker；Low frequency leads and is provided with corresponding elastic sheet immediately below sound plate.Thin speaker case provided by the invention, by loading elastic sheet in the case where low frequency leads sound plate, the sound quality of 1kHz or more can be improved under thinner structure, low frequency is pushed to lead the defect of sound plate bending vibration radiation sound in high-frequency range when especially improving woofer cell operation, reduce or reduce the peak and valley of frequency response curve, to improve the uniformity of the frequency response curve of loudspeaker, the especially uniformity of 1kHz frequencies above response curve, and then the full rate frequency characteristic of loudspeaker enclosure entirety is made to tend to flat, improve sound quality.
Description
Technical field
The present invention relates to a kind of thin speaker casees, specifically a kind of to be suitable for the sounds such as large scale thin flat television set
The loudspeaker and speaker used on video equipment, belongs to electroacoustic techniques field.
Background technique
In the prior art, it is the sound quality for improving the slim large size TV machines such as OLED, ULED, generally uses multiple loudspeakers
Unit forms reflex cabinet to improve low frequency response characteristic, but this kind of audio system, is generally limited by the knot of loudspeaker unit
The thickness of structure and installation site and television set complete machine structure can not further enhance the amount of low frequency under the premise of slimming
The directive property of sense and low frequency output.Therefore, it is bright to seek a kind of medium-high frequency, the sense of low frequency amount is sufficient and slim with certain directive property
Speaker be current television Ji Deng audio-video manufacturer the most there is an urgent need to core devices, and acoustics the most key in thin type speaker
Component is exactly thin speaker.Chinese patent Authorization Notice No.: a kind of thin speaker speaker of 207443119 U of CN, then be logical
Acoustic Optimization design is crossed, product thickness is constantly reduced under the premise of guaranteeing acoustic characteristic to meet requirement, by setting
It sets a special low frequency and leads sound plate enhancing low frequency response, improve directive property.But since low frequency leads sound plate in woofer work
When making, its own can generate bending vibration in high-frequency range, to cause the sound frequency response curve of entire loudspeaker enclosure
Peak and valley is prominent, causes the uniformity of frequency response to be deteriorated, is unfavorable for high quality playback.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, in conjunction with the scheme of above-mentioned 207443119U patent
Advanced optimize improvement, provide it is a kind of load elastic sheet thin speaker case, keep its structure relatively easy, bass loudness and
Under the premise of amount sense is constant, the sound property of speaker can be improved under relatively thin structural thickness, reduce or reduce frequency response curve
Peak and valley, to improve the uniformity of the frequency response curve of loudspeaker, especially 1kHz frequencies above response curve
The uniformity, and then the full rate frequency characteristic of loudspeaker enclosure entirety is made to tend to flat, improve sound quality.
According to technical solution provided by the invention:
A kind of thin speaker case loading elastic sheet, is mainly made of upper casing, lower casing, woofer.In bass loudspeaker
The surface of device is provided with low frequency and leads sound plate, and low frequency is led sound plate and is mounted on the outer step of woofer, and low frequency leads sound plate
Upper surface is flushed with the upper surface of cabinet upper casing, and the covering of sound plate, bass loudspeaker are led by low frequency completely in the surface of woofer
The upper surface of device and low frequency lead between the lower surface of sound plate that there are gaps, and in woofer close to cabinet long axis direction bottom end
There are sound outlet holes for conducting sound for part.The underface that low frequency leads sound plate, the upper table of elastic sheet is arranged in elastic sheet
The lower surface that sound plate is led with low frequency in face is combined closely, and keeps certain gap with woofer.
Further improvement of these options, the density of material of the elastic sheet are 100 ~ 120Kg/ cubic metres.
Further improvement of these options, the elastic sheet are made of elastomer, and preferentially select ethylene propylene diene rubber.
Further improvement of these options, the low frequency are led sound plate and are made of metal, preferential aluminium or iron.
Further improvement of these options, the sound basin of the woofer be it is plate, it is preferential to select carbon fiber flat
Plate.
Compared with prior art, the present invention advantage is: the low frequency of thin speaker case leads and is provided with phase immediately below sound plate
The elastic sheet answered.Thin speaker case provided by the invention can be more by loading EPDM thin plate in the case where low frequency leads sound plate
The sound quality for improving 1kHz or more under thin structure pushes low frequency to lead sound plate and exists when especially improving woofer cell operation
The defect of bending vibration radiation sound, reduces or reduces the peak and valley of frequency response curve, to improve loudspeaking in high-frequency range
The uniformity of the frequency response curve of device, the especially uniformity of 1kHz frequencies above response curve, and then keep loudspeaker enclosure whole
The full rate frequency characteristic of body tends to flat, improves sound quality.
Detailed description of the invention
Fig. 1 is a kind of sectional view for the thin speaker case for loading elastic sheet of the present invention.
Fig. 2 is a kind of exploded view for the thin speaker case for loading elastic sheet of the present invention.
Fig. 3 is a kind of outline drawing for the thin speaker case for loading elastic sheet of the present invention.
Fig. 4 is that a kind of thin speaker case for loading EPDM thin plate of the present invention and the frequency response for not loading EPDM thin plate are bent
Line comparison diagram.
In figure: 1-upper casing, 2-lower casings, 3-woofers, 4-low frequencies lead sound plate, 5-elastic sheets.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
As shown in Fig. 1 ~ 3, a kind of thin speaker case loading elastic sheet in embodiment, a kind of load elastic sheet
Thin speaker case is mainly made of upper casing 1, lower casing 2, woofer 3；In the surface of woofer 3, it is provided with low
Frequency leads sound plate, and low frequency is led sound plate and is mounted on the outer step of woofer, and low frequency leads sound plate upper surface and cabinet upper casing
Upper surface flushes, and the covering of sound plate is led by low frequency completely in the surface of woofer 3, and upper surface and the low frequency of woofer are led
There are gaps between the lower surface of sound plate, and close to the part of cabinet long axis direction bottom end, there are sound outlet hole use in woofer
In conduction sound.The underface that low frequency leads sound plate is arranged in elastic sheet, and the upper surface of elastic sheet and low frequency are led under sound plate
Surface is combined closely, and keeps certain gap with woofer.
Further improvement of these options, the density of material of the elastic sheet are 100 ~ 120Kg/ cubic metres.
Further improvement of these options, the elastic sheet are made of elastomer, and preferentially select ethylene propylene diene rubber
That is EPDM.
Further improvement of these options, the low frequency are led sound plate and are made of metal, preferential aluminium or iron.
Further improvement of these options, the sound basin of the woofer be it is plate, it is preferential to select carbon fiber flat
Plate.
As shown in figure 4, by loading elastic sheet in the case where low frequency leads sound plate, can improve under thinner structure 1kHz with
On sound quality, the later peak and valley of 1kHz of frequency response curve is especially reduced or reduces, so that the frequency for improving loudspeaker is rung
The uniformity of curve, the especially uniformity of 1kHz frequencies above response curve are answered, and then makes the full rate of loudspeaker enclosure entirety
Frequency characteristic tends to flat.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (5)
1. a kind of thin speaker case for loading elastic sheet, including loudspeaker and cabinet, which is characterized in that including upper casing (1),
Lower casing (2) and woofer (3)；
It is provided with low frequency right above woofer (3) to lead sound plate (4), low frequency leads sound plate (4) and is mounted on woofer
(3) on outer step, low frequency is led sound plate (4) upper surface and is flushed with the upper surface of cabinet upper casing (1), woofer (3)
Sound plate (4) covering is led by low frequency completely in surface, the upper surface of woofer (3) and low frequency lead sound plate (4) lower surface it
Between there are gaps, and close to the part of cabinet long axis direction bottom end, there are sound outlet holes for conducting sound in woofer (3)；
Elastic sheet (5) setting leads the underface of sound plate (4) in low frequency, and the upper surface of elastic sheet (5) and low frequency lead sound plate (4)
Lower surface combine closely, and keep certain gap with woofer (3).
2. a kind of thin speaker case for loading elastic sheet as described in claim 1, it is characterised in that: the elastic sheet
(5) density of material is 100 ~ 120Kg/ cubic metres.
3. a kind of thin speaker case for loading elastic sheet as described in claim 1, it is characterised in that: the elastic sheet
(5) it is made of elastomer, preferentially selects ethylene propylene diene rubber.
4. a kind of thin speaker case for loading elastic sheet as described in claim 1, it is characterised in that: the low frequency leads sound plate
(4) it is made of metal, preferential aluminium or iron.
5. a kind of thin speaker case for loading elastic sheet as described in claim 1, it is characterised in that: the woofer
(3) sound basin is plate, preferential to select carbon fiber plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206139.6A CN109246539A (en) | 2018-10-17 | 2018-10-17 | A kind of thin speaker case loading elastic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206139.6A CN109246539A (en) | 2018-10-17 | 2018-10-17 | A kind of thin speaker case loading elastic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109246539A true CN109246539A (en) | 2019-01-18 |
Family
ID=65053215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811206139.6A Pending CN109246539A (en) | 2018-10-17 | 2018-10-17 | A kind of thin speaker case loading elastic sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109246539A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270473A (en) * | 1999-03-30 | 2000-10-18 | 汤姆森多媒体公司 | Mechanical filter of audio sysetm and TV set with the same filters |
| US20140146991A1 (en) * | 2012-11-23 | 2014-05-29 | Amtran Technology Co., Ltd | Audio output device and video/audio output device using the same |
| CN206524921U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN107360517A (en) * | 2017-07-04 | 2017-11-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN107667539A (en) * | 2015-05-29 | 2018-02-06 | B & W集团有限公司 | The diaphragm of loudspeaker |
| CN107690106A (en) * | 2017-07-04 | 2018-02-13 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108055614A (en) * | 2017-11-23 | 2018-05-18 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN207443119U (en) * | 2017-06-14 | 2018-06-01 | 无锡杰夫电声股份有限公司 | A kind of thin speaker speaker |
| CN208754533U (en) * | 2018-10-17 | 2019-04-16 | 无锡杰夫电声股份有限公司 | A kind of thin speaker case loading elastic sheet |
-
2018
- 2018-10-17 CN CN201811206139.6A patent/CN109246539A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270473A (en) * | 1999-03-30 | 2000-10-18 | 汤姆森多媒体公司 | Mechanical filter of audio sysetm and TV set with the same filters |
| US20140146991A1 (en) * | 2012-11-23 | 2014-05-29 | Amtran Technology Co., Ltd | Audio output device and video/audio output device using the same |
| CN107667539A (en) * | 2015-05-29 | 2018-02-06 | B & W集团有限公司 | The diaphragm of loudspeaker |
| CN206524921U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN207443119U (en) * | 2017-06-14 | 2018-06-01 | 无锡杰夫电声股份有限公司 | A kind of thin speaker speaker |
| CN107360517A (en) * | 2017-07-04 | 2017-11-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN107690106A (en) * | 2017-07-04 | 2018-02-13 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108055614A (en) * | 2017-11-23 | 2018-05-18 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN208754533U (en) * | 2018-10-17 | 2019-04-16 | 无锡杰夫电声股份有限公司 | A kind of thin speaker case loading elastic sheet |
Non-Patent Citations (1)
| Title |
|---|
| 张光碧: "《建筑材料》", 中国电力出版社, pages: 210 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |