CN2155645Y - Cross complementary loudspeaker box - Google Patents
Cross complementary loudspeaker box Download PDFInfo
- Publication number
- CN2155645Y CN2155645Y CN 93233925 CN93233925U CN2155645Y CN 2155645 Y CN2155645 Y CN 2155645Y CN 93233925 CN93233925 CN 93233925 CN 93233925 U CN93233925 U CN 93233925U CN 2155645 Y CN2155645 Y CN 2155645Y
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- sound
- passage
- audio amplifier
- length
- 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.)
- Expired - Fee Related
Links
- 230000000295 complement effect Effects 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000003351 stiffener Substances 0.000 claims description 4
- 239000011358 absorbing material Substances 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000004043 dyeing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 1
Images
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
A cross-complementing loudspeaker box is composed of high-pitch loudspeaker, middle-low pitch loudspeaker and plate material, and features that each loudspeaker has an acoustic channel whose length is 3 times that of another one and 3 times that of the channel is a quarter of the resonance frequency of its loudspeaker. Therefore, when the loudspeaker is used, the resonance peak of the resonance frequency of the loudspeaker can be flattened, and the sound pressures of the frequencies can be mutually complemented in a cross mode, so that a very flat sound pressure frequency response curve is obtained, the low sound has no one-point dyeing phenomenon, and the middle and high sound is clear and abnormal.
Description
The utility model belongs to a kind of audio amplifier.
The invention (application number is 88104537.3) that name is called " sound box system " has proposed a kind of audio amplifier that can obtain smooth sound pressure frequency characteristic in a wide frequency range that reaches the high pitch zone, the feature of this audio amplifier is to be limited by a sound absorbing element, and space and sound absorbing element are to separate with a partition member in the sound channel.This audio amplifier can only obtain the interior smooth sound pressure frequency characteristic of wide frequency range in high pitch zone, but can not solve the sound wave short circuit and the resonance peak problem of low frequency region effectively.
The purpose of this utility model provides a kind of cross complementary voice box, not only can scabble the resonance peak of harmonic frequency of loudspeakers but also can make the acoustic pressure cross complementary of each frequency.Thereby in whole audiorange, obtain a very smooth sound pressure frequency response curve.
The utility model is achieved in that use two is merely hit, woofer, sound passage of every loudspeaker design, and allowing the length of one of them sound channel be 3 times of another passage length, this passage length of 3 times is designed to the quarter-wave of its harmonic frequency of loudspeakers.
The utility model has been owing to used two woofers, sound passage of every loudspeaker design, and allow the length of one of them passage be 3 times of another passage length, equal the quarter-wave of its loud speaker resonance ratio simultaneously again.Therefore, both can scabble the resonance peak of harmonic frequency of loudspeakers during use, can make the acoustic pressure cross complementary of each frequency again, thereby obtain a very smooth sound pressure frequency response curve.
Accompanying drawing 1 cuts open for the utility model structure and shows schematic diagram.
Accompanying drawing 2 is the utility model stiffener flat shape schematic diagram.
Now further specify in conjunction with the accompanying drawings:
As Fig. 1, high pitch loudspeaker (1) is placed in the middle part of audio amplifier, in, woofer (2,3) is placed in the upper and lower of audio amplifier, deserves to be called loud speaker (2) and following loud speaker (3) respectively.The rear portion of high pitch loudspeaker (1) is sealed with cavity (4), filling sound-absorbing material in the cavity (4).Two sound passages (5,6) be divided into sheet material (12), the length of sound passage (6) is following loud speaker resonance ratio quarter-wave, its channel outlet (8) be placed in down loud speaker (3) below, and the length of sound passage (5) be passage (6) length 1/3rd, its channel outlet (7) be placed in upper speaker (2) above.The wiring of two-loudspeaker (2,3) is drawn separately, both can parallel connection also can connect, and can also be connected to the amplifier of Active crossover respectively.The specification of upper speaker (2) and following loud speaker (3) can be identical also can be inequality, during design sound passage (6) length preferably the resonance frequency of following loud speaker (3) be as the criterion.Following loud speaker (3) answers the selective resonance frequency lower and loud speaker that ratio is higher is good.The sheet material of making audio amplifier should select to be thicker than plank or the particieboard of 20mm, the front panel of audio amplifier (9), top board (10) and base plate (11) should use bilayer, should add stiffener (13) between its inner sheet material (12), the upper and lower side of stiffener (13) should be made circular shape, as shown in Figure 2, in order to avoid influence flowing of information stream (14).
Claims (4)
1, a kind of cross complementary voice box, by high pitch loudspeaker (1), in, woofer (2,3), sheet material (12) constitutes, in it is characterized in that, woofer (2,3) sound passage (5,6) be designed to two, the length of one of them passage (6) is 3 times of length of another passage (5), the length of this passage (6) of 3 times be simultaneously its loud speaker (3) resonance frequency wavelength 1/4th.
2, cross complementary voice box according to claim 1, loud speaker (3) is positioned at the bottom of audio amplifier under it is characterized in that, sound passage (6) be positioned at following loud speaker (3) below, upper speaker (2) is positioned at the top of audio amplifier, sound passage (5) be positioned at upper speaker (2) above.
3,, it is characterized in that cavity (4) inner filling sound-absorbing material is sealed at the rear portion of high pitch loudspeaker (1) with a cavity (4) according to the described audio amplifier of claim.
4, audio amplifier according to claim 1 is characterized in that the upper and lower side of stiffener (13) is made circular shape, is placed between the sheet material (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93233925 CN2155645Y (en) | 1993-05-07 | 1993-05-07 | Cross complementary loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93233925 CN2155645Y (en) | 1993-05-07 | 1993-05-07 | Cross complementary loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2155645Y true CN2155645Y (en) | 1994-02-09 |
Family
ID=33809718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93233925 Expired - Fee Related CN2155645Y (en) | 1993-05-07 | 1993-05-07 | Cross complementary loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2155645Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057187C (en) * | 1998-03-25 | 2000-10-04 | 王天资 | Cross-complementary speaker with low frequency lower limit and low distortion |
| US7701119B2 (en) | 2003-12-26 | 2010-04-20 | Nec Corporation | Piezoelectric actuator |
-
1993
- 1993-05-07 CN CN 93233925 patent/CN2155645Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057187C (en) * | 1998-03-25 | 2000-10-04 | 王天资 | Cross-complementary speaker with low frequency lower limit and low distortion |
| US7701119B2 (en) | 2003-12-26 | 2010-04-20 | Nec Corporation | Piezoelectric actuator |
| CN102098600A (en) * | 2003-12-26 | 2011-06-15 | 日本电气株式会社 | Piezoelectric actuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7584820B2 (en) | Acoustic radiating | |
| US5815589A (en) | Push-pull transmission line loudspeaker | |
| US4210223A (en) | Low frequency folded exponential horn loudspeaker apparatus with bifurcated sound path | |
| EP1585108B1 (en) | Acoustic waveguide system containing a trunk waveguide and a number of branch waveguides | |
| US6320971B1 (en) | Speaker system and a method for improving sound quality thereof | |
| US4206831A (en) | Loudspeaker coupler | |
| US4369857A (en) | Loudspeaker and horn combination | |
| CN1101201A (en) | Frequency selective acoustic waveguide damping | |
| GB2258365A (en) | Speaker system with opposed drive units | |
| US2731101A (en) | Loud speaker | |
| CN2302622Y (en) | Loudspeaker box | |
| US4174019A (en) | Dual speaker | |
| US2822884A (en) | Loudspeaker enclosure | |
| CN2155645Y (en) | Cross complementary loudspeaker box | |
| US6557664B1 (en) | Loudspeaker | |
| US2643728A (en) | High fidelity loud-speaker cabinet | |
| US2819772A (en) | Wide range loudspeaker | |
| US5099948A (en) | Compact woofer speaker system | |
| CN2342535Y (en) | Loudspeaker box | |
| JP2884576B2 (en) | Speaker system | |
| CN2150693Y (en) | Super-low voice box | |
| US6886658B1 (en) | Loudspeaker enclosure system | |
| US3255842A (en) | Loudspeaker | |
| CN222301955U (en) | Speaker device and stereo set | |
| CN110475185A (en) | Acoustic radiation component and audible device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |