CN203523010U - Radiation type bass reflex - Google Patents
Radiation type bass reflex Download PDFInfo
- Publication number
- CN203523010U CN203523010U CN201320623762.8U CN201320623762U CN203523010U CN 203523010 U CN203523010 U CN 203523010U CN 201320623762 U CN201320623762 U CN 201320623762U CN 203523010 U CN203523010 U CN 203523010U
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- Prior art keywords
- button
- center
- radiation
- hole
- wall body
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- Expired - Fee Related
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- 230000005855 radiation Effects 0.000 title claims abstract description 40
- 230000011514 reflex Effects 0.000 title abstract 6
- 238000007789 sealing Methods 0.000 claims description 14
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
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- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a radiation type bass reflex. The radiation type bass reflex comprises a middle frame, wherein a radiation basin is arranged inside the middle frame, the middle frame is divided into a front chamber and a rear chamber by the radiation basin, a loudspeaker is arranged in the front chamber, the rear chamber is an airtight chamber, air holes are formed in a certain wall except the front wall of the rear chamber, vibration spread backwards by a vibration film is fully absorbed and used by the radiation basin, then vibration is generated and sound waves are radiated, a reverse-phase channel is formed by the radiation basin, the space behind the radiation basin, the walls of the rear chamber and the air holes, the sound waves comply with the characteristic that pressure is transmitted along with a shortest path (resistance is smallest), therefore the sound waves radiated by the radiation basin can penetrate out of the air holes after passing through the reverse-phase channel to be overlaid with sound waves in front, loss of bass radiation energy is little, and standing waves in the bass reflex can not be generated easily; meanwhile, voice frequency and inherent frequency of the bass reflex can be buffered and corrected, mid-bass radiation efficiency is high, alto voice is full, and low pitch sounds are forceful. The radiation type bass reflex has the advantages that the structure is simple and reasonable, the degree of distortion is low, and the audio effect is good.
Description
Technical field
The utility model relates to an electro-technical field, relates in particular to a kind of radiation phase inverted cabinet.
Background technology
Along with the raising of people's living standard, the quality of audio amplifier is more and more subject to people's attention.
In the audio amplifier course of work, vibrating diaphragm will ceaselessly seesaw, and promotes air, and then vibration is imported into people's ear, makes people hear sound; This process also can be followed extraneous vibration simultaneously, and the air of audio amplifier inside causes the shortcomings such as resonance frequency rises, transient response degenerates, harmonic distortion increase to the interference of vibrating diaphragm.In industry, adopt common inverted loudspeaker box structure to overcome above-mentioned shortcoming, the vibrating diaphragm of loud speaker is exposed sounding, by phase-reversing tube, the rearward vibration of vibrating diaphragm is led to the place ahead, the rearward vibration of loud speaker is also used, will make sound wave strengthen, increase supper bass effect.
Yet phase-reversing tube structural design is relatively complicated, need to significantly increase the volume of audio amplifier; In current techniques, be limited to the structure of audio amplifier, cause rearward sound wave not utilized fully; Make audio amplifier medium and low frequency can not in audio amplifier, produce the resonance of designing requirement, middle bass radiation efficiency is not high, causes middle pitch full not, and it is unable that bass also seems.
Utility model content
It is a kind of simple in structure that the purpose of this utility model is to provide, and only needs a small amount of volume that increases audio amplifier, just can make full use of the sound wave that vibrating diaphragm rearward sends, make the medium and low frequency of audio amplifier can in audio amplifier, produce the resonance of designing requirement, middle bass radiation efficiency is high, and middle pitch is full, and bass is strong; Simple and reasonable, the distortion factor is low, and audio frequency effect is good.
The utility model is realized by the following technical solutions.
A radiation phase inverted cabinet, comprises center, and center inside is provided with Caloris Basin, and Caloris Basin is divided into former and later two chambers by center, in previous chamber, is provided with loudspeaker, and a rear chamber is for being provided with the airtight chamber in wind hole on a certain wall body except antetheca.
Preferably, wind hole is arranged at a certain wall body except antetheca and except rear wall of a rear chamber.
Preferably, the front end in wind hole and the Caloris Basin certain distance in interval in the horizontal direction; The Yu Feng hole, upper end of Caloris Basin is the certain distance in interval in vertical direction.
Preferably, also comprise housing, center is arranged at the inside of housing; Being provided with between wind hole wall body of the wall body of housing and center arranges gap.
Preferably, except the wall body that is provided with wind hole of center, other wall body of center and the wall body tight fit of housing.
Preferably, also comprise the housing of aluminum, wind hole is arranged at the upper wall body of a rear chamber; Between the upper wall body of housing and the upper wall body of center, gap is set, other wall body tight fit of other wall body of housing and center.
Preferably, the inside of center arranges partition wall, and partition wall is provided with Caloris Basin installing hole, and Caloris Basin is positioned at Caloris Basin installing hole; Partition wall and Caloris Basin are divided into former and later two chambers by center.
Preferably, also comprise bonnet, bonnet sealing ring, header board and header board sealing ring; Bonnet is the rear wall of a rear chamber, and bonnet sealing ring is set between bonnet and center; Header board is the antetheca of last chamber, and header board sealing ring is set between header board and center.
Preferably, also comprise button PCBA, button assembling position, button EVA and button, button assembling position is arranged at the upper wall of center; Button PCBA is provided with button control bit, and button PCBA is positioned at last chamber; Button assembling position is provided with through hole; Button is provided with cylinder; After button and button assembling position assembling, cylinder is through through hole, and the end of cylinder is closed on or propped up button control bit; Button EVA is around button control bit, and button EVA elastic compression joint is between the inwall and button PCBA of button assembling position.
Preferably, also comprise spring, button assembling position is provided with the second annular blind hole of nested inside the first annular blind hole, and the first annular blind hole is looped around the outside of through hole; The bottom of button is provided with the 3rd annular blind hole, and the 3rd annular blind hole is around cylinder; After button and button assembling position assembling, spring housing is connected on the outside of internal ring wall and the cylinder of the first annular blind hole, and the second annular blind hole coordinates with the ring wall of the 3rd annular blind hole; Spring is crimped between button assembling position and button.
The beneficial effects of the utility model are: a kind of radiation phase inverted cabinet, comprise center, center inside is provided with Caloris Basin, Caloris Basin is divided into former and later two chambers by center, in previous chamber, be provided with loudspeaker, a rear chamber is for being provided with the airtight chamber in wind hole on a certain wall body except antetheca.The vibration that Caloris Basin is rearward propagated vibrating diaphragm fully absorbs, utilizes, and produces vibration, gives off sound wave; The wall body of the space at Caloris Basin, Caloris Basin rear, a rear chamber, wind hole form a paraphase passage; Sound wave is that fluid is followed pressure through the shortest (minimum drag) path transmission characteristic; So the sound wave of Caloris Basin radiation can pass from wind hole through paraphase passage, with the stack of the place ahead sound wave, bass radiant energy loss is little, is difficult for producing the inner standing wave of audio amplifier; Can audio frequency and audio amplifier natural frequency be cushioned and be revised, middle bass radiation efficiency be high simultaneously, and medium and low frequency is easy to produce the resonance of designing requirement in audio amplifier, and middle pitch is full, and bass is strong; Simple and reasonable, the distortion factor is low, and audio frequency effect is good.
Accompanying drawing explanation
For technical scheme clearer, that the utility model embodiment is described effectively, the accompanying drawing of required use in embodiment is briefly described, self-explantoryly be, accompanying drawing in the following describes is only embodiment more of the present utility model, for those skilled in the art, without paying under the prerequisite of creative work, can also make other accompanying drawing according to these accompanying drawings.
Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of a kind of radiation phase inverted cabinet of the utility model.
Fig. 2 is the structural representation of the center of a kind of radiation phase inverted cabinet of the utility model.
Fig. 3 is the button PCBA of a kind of radiation phase inverted cabinet of the utility model and the structural representation of button EVA.
Fig. 4 is the vertical view of a kind of radiation phase inverted cabinet of the utility model.
Fig. 5 be a kind of radiation phase inverted cabinet of the utility model Fig. 4 A-A to profile.
Fig. 6 be a kind of radiation phase inverted cabinet of the utility model Fig. 4 B-B to profile.
In figure:
1-center; 2-Caloris Basin; 3-loudspeaker; 4-wind hole; 5-housing; 6-partition wall; 7-Caloris Basin installing hole; 8-bonnet; 9-bonnet sealing ring; 10-header board; 11-header board sealing ring; 12-button PCBA; 13-button assembling position; 14-button EVA; 15-button; 16-button control bit; 17-through hole; 18-cylinder; 19-spring; The annular blind hole of 20-first; The annular blind hole of 21-second; 22-the 3rd annular blind hole.
Embodiment
The utility model provides a kind of radiation phase inverted cabinet, in order to make, those of skill in the art are clearer understands the utility model scheme, and make the above-mentioned object of the utility model, feature, beneficial effect can more understand, understandable, below in conjunction with accompanying drawing 1～6 and embodiment, the utility model is described in further detail.
A radiation phase inverted cabinet, comprises center 1, and the inside of center 1 arranges partition wall 6, and partition wall 6 is provided with Caloris Basin installing hole 7, and Caloris Basin installing hole 7 is installed Caloris Basin 2; Partition wall 6 and Caloris Basin 2 are divided into former and later two chambers by center 1.In previous chamber, be provided with loudspeaker 3; The upper wall body of a rear chamber arranges wind hole 4.
The vibration that Caloris Basin 2 is rearward propagated the vibrating diaphragm of loudspeaker 3 fully absorbs, utilizes, and produces vibration, gives off sound wave; The space at Caloris Basin 2, Caloris Basin 2 rears, the wall body of a rear chamber, wind hole 4 form a paraphase passage; Sound wave is that fluid is followed pressure through the shortest (minimum drag) path transmission characteristic; So the sound wave of Caloris Basin 2 radiation can pass from wind 4 holes through paraphase passage, with the stack of the place ahead sound wave, make this audio amplifier bass radiant energy loss little, be difficult for producing the inner standing wave of audio amplifier; Can audio frequency and audio amplifier natural frequency be cushioned and be revised simultaneously; Middle bass radiation efficiency is high, and medium and low frequency is easy to produce the resonance of designing requirement in audio amplifier, and middle pitch is full, and bass is strong; Simple and reasonable, the distortion factor is low, and audio frequency effect is good.
As an alternative, wind hole 4 also can be arranged at other wall body except rear wall of a rear chamber.When the rear wall of a rear chamber arranges wind hole 4, the sound wave transmitting forward through paraphase passage is less.
The front end in wind hole 4 and Caloris Basin 2 be the certain distance in interval in the horizontal direction; The Yu Feng hole, upper end 4 of Caloris Basin 2 is the certain distance in interval in vertical direction; To obtain the paraphase channel size needing, thereby meet the designing requirement of audio amplifier, audio frequency and audio amplifier natural frequency are cushioned and revised.
In the present embodiment, also comprise the housing 5 of aluminum, between the upper wall body of housing 5 and the upper wall body of center 1, gap is set, other wall body tight fit of other wall body of housing 5 and center 1.The sound wave that Caloris Basin 2 produces after a chamber, rushes at housing 5 after wind hole 3 is left, and the gap between housing 5 and center 1 forms the transmission channel of sound wave, has strengthened the utilization ratio of sound wave.
Between other wall body of housing 5 and other wall body of center 1, also can take other fit system.
In the present embodiment, also comprise bonnet 8, bonnet sealing ring 9, header board 10 and header board sealing ring 11; Bonnet 8 is the rear wall of a rear chamber, between bonnet 8 and center 1, bonnet sealing ring 9 is set; The antetheca that header board 10 is last chamber, arranges header board sealing ring 11 between header board 10 and center.
In the present embodiment, also comprise button PCBA12, button assembling position 13, button EVA14 and button 15, button assembling position 13 is arranged at the upper wall of center 1; Button PCBA12 is provided with button control bit 16, and button PCBA12 is positioned at last chamber; Button assembling position 13 is provided with through hole 17; Button 15 is provided with cylinder 18; After button 15 and 13 assemblings of button assembling position, cylinder 18 is through through hole 17, and the end of cylinder 18 is closed on or propped up button control bit 16; Button EVA14 is around button control bit 16, and button EVA14 elastic compression joint is between the inwall and button PCBA12 of button assembling position 13.
In the present embodiment, also comprise spring 19, the button assembling position 13 annular blind holes 20 of the second annular blind hole 21, the first that are provided with the annular blind hole 20 of nested inside first are looped around the outside of through hole 17; The bottom of button 15 is provided with the annular blind hole 22 of the 3rd annular blind hole 22, the three around cylinder 18; After button 15 assembles with button assembling position 13, spring 19 is socketed in the outside of internal ring wall and the cylinder 18 of the first annular blind hole 20, and the second annular blind hole 21 coordinates with the ring wall of the 3rd annular blind hole 22; Spring 19 elastic compression joints are between button assembling position 13 and button 15.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection range.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, within these modes all will fall into protection range of the present utility model.
Claims (10)
1. a radiation phase inverted cabinet, comprise center (1), it is characterized in that, center (1) inside is provided with Caloris Basin (2), Caloris Basin (2) is divided into former and later two chambers by center (1), in previous chamber, be provided with loudspeaker (3), a rear chamber is for being provided with the airtight chamber of wind hole (4) on a certain wall body except antetheca.
2. radiation phase inverted cabinet as claimed in claim 1, is characterized in that, described wind hole (4) is arranged at a certain wall body except antetheca and except rear wall of a described rear chamber.
3. radiation phase inverted cabinet as claimed in claim 2, is characterized in that, the front end in described wind hole (4) and described Caloris Basin (2) be the certain distance in interval in the horizontal direction; The upper end of described Caloris Basin (2) and described wind hole (4) be the certain distance in interval in vertical direction.
4. radiation phase inverted cabinet as claimed in claim 2, is characterized in that, also comprises housing (5), and described housing (5) is arranged at the outside of described center (1); Between the wall body that is provided with wind hole (4) of the wall body of described housing (5) and described center (1), gap is set.
5. radiation phase inverted cabinet as claimed in claim 4, is characterized in that, except the wall body that is provided with wind hole (4) of described center (1), and the wall body tight fit of other wall body of described center (1) and described housing (5).
6. radiation phase inverted cabinet as claimed in claim 2, is characterized in that, also comprises the housing (5) of aluminum, and described wind hole (4) is arranged at the upper wall body of a described rear chamber; Between the upper wall body of the upper wall body of described housing (5) and described center (1), gap is set, other wall body tight fit of other wall body of described housing (5) and center (1).
7. radiation phase inverted cabinet as claimed in claim 1, it is characterized in that, the inside of described center (1) arranges partition wall (6), and described partition wall (6) is provided with Caloris Basin installing hole (7), and described Caloris Basin (2) is positioned at described Caloris Basin installing hole (7); Described partition wall (6) and Caloris Basin (2) are divided into former and later two chambers by center (1).
8. radiation phase inverted cabinet as claimed in claim 1, is characterized in that, also comprises bonnet (8), bonnet sealing ring (9), header board (10) and header board sealing ring (11); Described bonnet (8) is the rear wall of a described rear chamber, between described bonnet (8) and center (1), described bonnet sealing ring (9) is set; The antetheca that described header board (10) is described last chamber, arranges header board sealing ring (11) between described header board (10) and described center (1).
9. radiation phase inverted cabinet as claimed in claim 1, is characterized in that, also comprises button PCBA(12), button assembling position (13), a button EVA(14) and button (15), button assembling (13) is arranged at the upper wall of center (1); Button PCBA(12) be provided with button control bit (16), button PCBA(12) be positioned at described last chamber; Button assembling position (13) is provided with through hole (17); Described button (15) is provided with cylinder (18); After described button (15) and described button assembling position (13) assembling, described cylinder (18) is through through hole (17), and the end of cylinder (18) is closed on or propped up button control bit (16); Described button EVA(14) around button control bit (16), described button EVA(14) elastic compression joint is in inwall and the button PCBA(12 of described button assembling position (13)) between.
10. radiation phase inverted cabinet as claimed in claim 9, it is characterized in that, also comprise spring (19), described button assembling position (13) is provided with the second annular blind hole (21) of the annular blind hole of nested inside first (20), and described the first annular blind hole (20) is looped around the outside of through hole (17); The bottom of described button (15) is provided with the 3rd annular blind hole (22), and described the 3rd annular blind hole (22) is around described cylinder (18); After described button (15) assembles with described button assembling position (13), described spring (19) is socketed in the outside of internal ring wall and the cylinder (18) of the first annular blind hole (20), and the second annular blind hole (21) coordinates with the ring wall of the 3rd annular blind hole (22); Described spring (19) elastic compression joint is between described button assembling position (13) and button (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623762.8U CN203523010U (en) | 2013-10-10 | 2013-10-10 | Radiation type bass reflex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623762.8U CN203523010U (en) | 2013-10-10 | 2013-10-10 | Radiation type bass reflex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203523010U true CN203523010U (en) | 2014-04-02 |
Family
ID=50381876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320623762.8U Expired - Fee Related CN203523010U (en) | 2013-10-10 | 2013-10-10 | Radiation type bass reflex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203523010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2803551C1 (en) * | 2020-08-04 | 2023-09-15 | Шэньчжэнь Шокз Ко., Лтд. | Acoustic signal output device |
| US12108208B2 (en) | 2019-09-19 | 2024-10-01 | Shenzhen Shokz Co., Ltd. | Acoustic output devices |
-
2013
- 2013-10-10 CN CN201320623762.8U patent/CN203523010U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12108208B2 (en) | 2019-09-19 | 2024-10-01 | Shenzhen Shokz Co., Ltd. | Acoustic output devices |
| RU2803551C1 (en) * | 2020-08-04 | 2023-09-15 | Шэньчжэнь Шокз Ко., Лтд. | Acoustic signal output device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20181010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |