CN108322847B - Loudspeaker box with normal phase push-pull air energy conversion function - Google Patents
Loudspeaker box with normal phase push-pull air energy conversion function Download PDFInfo
- Publication number
- CN108322847B CN108322847B CN201810263419.4A CN201810263419A CN108322847B CN 108322847 B CN108322847 B CN 108322847B CN 201810263419 A CN201810263419 A CN 201810263419A CN 108322847 B CN108322847 B CN 108322847B
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- loudspeaker
- air energy
- normal phase
- pull air
- box
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001052 transient effect 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
- 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
-
- 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a loudspeaker box with a normal phase push-pull air energy conversion function, which comprises a box body and a normal phase push-pull air energy converter, wherein a cavity is arranged in the box body, a closed cavity is arranged in the normal phase push-pull air energy converter, the normal phase push-pull air energy converter is arranged in the cavity of the box body and is partially embedded in a front panel of the box body for outputting sound, the normal phase push-pull air energy converter at least comprises a midrange horn and a woofer, and the midrange horn and the woofer are coaxially arranged along the vertical central axis of the front panel. The invention uses the midrange loudspeaker and the woofer to form the normal phase push-pull air energy converter device, the two loudspeakers are coaxially arranged in tandem, and a closed cavity is formed in the normal phase push-pull air energy converter device.
Description
Technical Field
The invention belongs to the field of sound boxes, and particularly relates to a sound box with a normal-phase push-pull air energy conversion loudspeaker.
Background
The current loudspeaker box forms can be generally classified into airtight, phase inversion, maze, passive and other forms. The design of various sound boxes is to isolate the negative wave generated at the back of the loudspeaker unit, and avoid the effective output offset caused by the superposition of the diffracted negative wave and the positive wave output at the front. The sound box designs of the above forms can isolate the opposite phase wave at the back of the loudspeaker, but because the loudspeaker unit is installed with the box body, the air damping in the box body must be overcome to work, the damping generated by the negative wave in the box during working acts on the loudspeaker vibrating diaphragm, and causes great interference to the vibrating diaphragm, so that the resonant frequency of the loudspeaker is increased, the transient response is worsened, and the harmonic distortion is increased. Although the phase inversion, maze and passive loudspeaker box can effectively increase low-frequency output, the output frequency response curve is not flat enough and the distortion is large.
The present invention has been made in view of this.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a loudspeaker box with a normal phase push-pull air energy conversion function, wherein a normal phase push-pull air energy converter device is formed by a midrange loudspeaker and a woofer, the two loudspeakers are coaxially arranged in front of and behind each other, a closed cavity is formed inside the loudspeaker box, the two loudspeakers are respectively pushed to work at different audio frequencies by a power amplifier normal phase, because the air area in the closed cavity is a constant area, when the loudspeakers work, the air in the cavity can generate a thrust acting force on the loudspeakers, so that the loudspeakers are kept in an effective linear working range, the linear distortion of the loudspeakers is reduced, and the bearing power of the loudspeakers is improved.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:
the utility model provides a take normal phase push-pull air energy conversion speaker audio amplifier, the audio amplifier includes box, normal phase push-pull air energy converter, and the inside cavity that is equipped with of box, normal phase push-pull air energy converter is inside to be equipped with airtight chamber, and normal phase push-pull air energy converter sets up in the cavity of box, and partly inlays in the positive panel of box output sound, normal phase push-pull air energy converter includes midrange horn, woofer at least, and midrange horn and woofer follow the coaxial setting of vertical axis of positive panel.
Further, the normal phase push-pull air energy converter comprises a midrange horn, a woofer and a connector, wherein the midrange horn is partially embedded in the front panel, and the woofer and the midrange horn are fixedly connected by the connector to form a closed cavity inside.
Further, the loudspeaker box further comprises at least two tweeters, wherein the tweeters are uniformly distributed circumferentially by taking the vertical center axis of the front panel as the center of a circle, the front of each tweeter is embedded in the front panel, and the tail of each tweeter is positioned in the cavity.
Further, the number of the tweeters is two, and the tweeters are respectively arranged at two sides of the vertical center shaft of the front panel and are horizontally coaxial.
Further, the loudspeaker box further comprises a power amplifier, the power amplifier is provided with a power supply, the power amplifier is arranged on the box body, and the power amplifier is connected with the loudspeaker.
Further, the case is provided with a linear inverter tube which is mounted on the back plate opposite to the front plate and which communicates with the cavity through a connection passage.
Further, the power supply is a 24V power storage power supply, and the power amplifier is a four-channel power amplifier.
Further, the sound box further comprises a wireless communication module, and the wireless communication module is respectively connected with the power amplifier and the power supply.
Further, the wireless communication module is bluetooth.
Further, the LED pilot lamp is installed to the box, and the LED pilot lamp is connected with the power amplifier, the protection screen panel is installed outward to the front of box.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects.
The invention uses the midrange loudspeaker and the woofer to form the normal phase push-pull air energy converter device, the two loudspeakers are coaxially arranged in tandem, a closed cavity is formed in the two loudspeakers, the two loudspeakers are respectively pushed to work at different audio frequencies by the normal phase of the power amplifier, because the air area in the cavity of the closed cavity is a constant area, when the loudspeakers work, the air in the cavity can generate a reaction force to the loudspeakers, so that the loudspeakers are kept in an effective linear working range, the linear distortion of the loudspeakers is reduced, and the bearing power of the loudspeakers is improved; the air damping in the cavity of the closed cavity and the two horns work at different audio frequencies, so that the interference of the reactive force vibrating diaphragm in the cavity of the loudspeaker is effectively eliminated, the power, the output efficiency and the sensitivity of the horns are improved, the sound pressure of the horns is improved, and the effects of outputting large sound effect and high sound quality are achieved.
The invention has simple structure, reasonable structure and strong practicability, and is suitable for popularization and application.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.
In the drawings:
FIG. 1 is a schematic view of the overall assembly of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention.
In the figure: 1-a box body; 2-a midrange horn; 3-woofers; 4-tweeters; 5-a power amplifier; 6-a linear inverter tube; 7-protecting a net cover; 8-power and volume switches; 9-LED indicator lights; 10-a shock pad.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
As shown in fig. 1 to 3, the loudspeaker box with the normal phase push-pull air energy conversion according to the embodiment comprises a box body 1, a normal phase push-pull air energy converter and a power amplifier 5, wherein the box body 1 is a cuboid, a cavity is formed in the box body 1, and a loudspeaker is installed in the box body 1; the positive push-pull air energy converter comprises a midrange loudspeaker 2, a woofer 3 and a connector, wherein the midrange loudspeaker 2 and the woofer 3 are coaxially arranged along the vertical central axis of the front panel, the midrange loudspeaker 2 is partially embedded in the front panel, the woofer 3 and the midrange loudspeaker 2 are fixedly connected by the connector, the inside of the midrange loudspeaker 2 forms a closed cavity, the front panel of the box body 1 needing to be described herein refers to the panel of the loudspeaker outside, and the corresponding box body 1 is provided with a back surface, a top surface, a bottom surface and two side surfaces for convenience in description. The woofer 2 and the woofer 3 are coaxially arranged, the shaft is a central shaft from the front to the back, that is, the woofer 2 is positioned at the central position of the front, the woofer 3 is positioned in the box 1, the two horns with different tones are connected to form a normal phase push-pull air energy converter, the woofer 3 is positioned at the rear of the woofer 2, a certain space is reserved between the woofer 3 and the woofer, the woofer 3 and the woofer are connected through a connector, a channel space is formed from the front part of the woofer 3 to the rear part of the woofer 2, and the space is a closed space, that is, a closed cavity.
The tone of the sound box output also needs the combination of the tweeters 4, and in this embodiment, two tweeters 4 are also installed on the front surface of the box body 1, that is, the front panel, and the two tweeters 4 are respectively arranged on two sides of the tweeter 2 and symmetrically arranged, and are coaxial in the center of the three parts in the horizontal direction, thereby being attractive and consistent in tone. Of course, if necessary, a plurality of tweeters 4 may be installed, and the tweeters 2 may be uniformly distributed around the axial direction with the center thereof as the center.
The loudspeaker box is used as equipment for outputting sound, and the function of power amplification is added to be used independently, so that the loudspeaker box in the embodiment further comprises a four-channel power amplifier 5, the power amplifier 5 is provided with a power supply, the power amplifier 5 is arranged on the back surface of the box body 1, a cavity close to the back surface of the box body 1 can be divided into two parts, similar to a sandwich structure, one part is a loudspeaker vibration space, and the other part is a part for placing the power amplifier 5. The power amplifier 5 is connected with the loudspeaker, and the power amplifier 5 can independently control the loudspeaker to work through the power supply of the power supply, thereby being convenient and quick. The power amplifier 5 is provided with a power supply, a volume switch 8 and an LED indicator lamp 9 for indicating working conditions, wherein the power supply supplies energy which is electrically connected, the indicator lamp can conveniently know the real-time state of the power amplifier 5, and a plurality of indicator lamps can be arranged to represent different states, for example, the high-voltage switch is turned on, and the power supply lamp is lighted red; the low-voltage power switch is turned on, the power lamp is turned off, the Bluetooth lamp is on to flash white, the flash is enhanced when the Bluetooth lamp is connected in a butt joint mode, and the constant white lamp is protected after the connection is successful. For convenient control and convenient operation, the power supply, the volume and the channel select the integrated encoder switch, the low-voltage power supply is turned on by long pressing, the input channel is switched by short pressing, the forward rotating volume is reduced, the backward rotating volume is increased, and the low-voltage power supply is turned off by long pressing.
In order to more accord with the life habit of people at present, set up bluetooth in box 1, bluetooth is connected with power amplifier 5, is connected with bluetooth through the cell-phone and controls power amplifier 5, and the power is 24V battery simultaneously, so can satisfy people's demand to wireless audio amplifier, control at any time, places.
The box 1 is used as a main body of the loudspeaker box, various components are mixed and matched, a front panel for outputting sound and a loudspeaker are directly arranged outwards, and a protective net cover 7 or a decorative plate is arranged outside the front panel of the box 1 for protecting and beautifying, so that the loudspeaker can be protected, and a good attractive effect can be achieved. In addition, when the loudspeaker works, vibration can drive the box body 1, and the shockproof pad 10 can be arranged on the periphery of the box body 1, so that negative effects caused by vibration are reduced. In order to further reduce the influence of loudspeaker vibration on the rear part of the box body 1 and the power amplifier 5, and improve the sound quality effect of the loudspeaker box, the box body 1 is provided with a linear phase inversion tube 6, the linear phase inversion tube 6 is arranged on a back plate opposite to the front plate, the linear phase inversion tube 6 is communicated with the cavity through a connecting channel, the linear phase inversion tube 6 is directly used outwards, vibration sound waves of the loudspeaker in the cavity are punched out of the phase inversion tube, and the sound waves of the loudspeaker on the back surface of the box body 1 can be utilized, so that the loudspeaker box is arranged to be combined into a 2.2 integrated loudspeaker box system, so that the sound quality of the loudspeaker box is improved, and the negative effect of vibration is reduced.
In this embodiment, a midrange loudspeaker 2 and a woofer 3 form a midrange bass push-pull air energy converter device, two horns are arranged in the same direction, the front (front) loudspeaker is the midrange loudspeaker 2, the rear (back) loudspeaker 3 is the woofer, two horns are respectively pushed by the normal phase of a power amplifier to work at different audio frequencies, a closed cavity is formed in the installed interior, the air area in the closed cavity is a constant area, and when the horns work, a reaction force is generated to the horns, so that the horns are kept in an effective linear working range, the linear distortion of the horns is reduced, the bearing power of the horns is improved, and because the air damping in the closed cavity and the two horns work at different audio frequencies, the interference of reaction force vibrating diaphragms in the loudspeaker cavity is eliminated.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (9)
1. The utility model provides a take normal phase push-pull air energy conversion speaker audio amplifier, its characterized in that, audio amplifier includes box, normal phase push-pull air energy converter, and the box is inside to be equipped with the cavity, normal phase push-pull air energy converter inside is equipped with airtight chamber, and normal phase push-pull air energy converter sets up in the cavity of box, and partly inlays in the positive panel of box output sound, normal phase push-pull air energy converter includes at least midrange loudspeaker, woofer, and midrange loudspeaker and woofer follow the coaxial setting of vertical axis of positive panel, normal phase push-pull air energy converter includes a midrange loudspeaker, a woofer, connector, and the midrange loudspeaker part inlays in the front panel, and woofer and midrange loudspeaker are fixed and make inside formation airtight chamber by the connector connection.
2. The loudspeaker box with the normal phase push-pull air energy conversion function according to claim 1, wherein the loudspeaker box further comprises at least two tweeters, wherein the tweeters are uniformly distributed circumferentially by taking a vertical center axis of the front panel as a center, the front of each tweeter is embedded in the front panel, and the tail of each tweeter is positioned in the cavity.
3. The loudspeaker box with the normal phase push-pull air energy conversion function according to claim 2, wherein the number of the tweeters is two, and the tweeters are respectively arranged at two sides of the vertical center axis of the front panel and are horizontally coaxial.
4. A loudspeaker enclosure with normal phase push-pull air energy conversion according to claim 1 or 2, wherein the enclosure further comprises a power amplifier, the power amplifier is provided with a power supply, the power amplifier is mounted on the enclosure, and the power amplifier is connected with the loudspeaker.
5. A loudspeaker enclosure with positive push-pull air energy conversion according to claim 1 wherein the enclosure is provided with a linear inverter tube mounted on the back plate opposite the front plate and communicating with the cavity through a connecting passage.
6. The loudspeaker enclosure with normal phase push-pull air energy conversion according to claim 4 wherein the power supply is a 24V power storage power supply and the power amplifier is a four-channel power amplifier.
7. The loudspeaker enclosure with the normal phase push-pull air energy conversion function according to claim 4, wherein the enclosure further comprises a wireless communication module, and the wireless communication module is respectively connected with the power amplifier and the power supply.
8. The loudspeaker enclosure of claim 7 wherein the wireless communication module is bluetooth.
9. The loudspeaker box with the normal phase push-pull air energy conversion function according to claim 4, wherein the box body is provided with an LED indicator lamp, the LED indicator lamp is connected with a power amplifier, and a protective net cover is arranged outside a front panel of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263419.4A CN108322847B (en) | 2018-03-28 | 2018-03-28 | Loudspeaker box with normal phase push-pull air energy conversion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810263419.4A CN108322847B (en) | 2018-03-28 | 2018-03-28 | Loudspeaker box with normal phase push-pull air energy conversion function |
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| Publication Number | Publication Date |
|---|---|
| CN108322847A CN108322847A (en) | 2018-07-24 |
| CN108322847B true CN108322847B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810263419.4A Active CN108322847B (en) | 2018-03-28 | 2018-03-28 | Loudspeaker box with normal phase push-pull air energy conversion function |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203734819U (en) * | 2014-03-11 | 2014-07-23 | 韦幸召 | Spherically symmetrical push-pull type ultra-high-fidelity sound box |
| CN204272360U (en) * | 2014-12-16 | 2015-04-15 | 广州飞达音响专业器材有限公司 | Push-pull type audio amplifier |
| JP3199298U (en) * | 2015-06-05 | 2015-08-13 | 勁剛企業有限公司 | Push-pull earphone |
| CN107205197A (en) * | 2016-03-16 | 2017-09-26 | 瑞轩科技股份有限公司 | Balance push-pull type loudspeaker device and its control method, audio frequency processing circuit and method |
| CN207995365U (en) * | 2018-03-28 | 2018-10-19 | 广州市智泓电子有限公司 | A kind of band positive, which recommends air, can convert loudspeaker acoustic enclosure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050185808A1 (en) * | 2004-02-19 | 2005-08-25 | Jazz Hipster Corporation | Composite structure with push-pull unit speakers |
-
2018
- 2018-03-28 CN CN201810263419.4A patent/CN108322847B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203734819U (en) * | 2014-03-11 | 2014-07-23 | 韦幸召 | Spherically symmetrical push-pull type ultra-high-fidelity sound box |
| CN204272360U (en) * | 2014-12-16 | 2015-04-15 | 广州飞达音响专业器材有限公司 | Push-pull type audio amplifier |
| JP3199298U (en) * | 2015-06-05 | 2015-08-13 | 勁剛企業有限公司 | Push-pull earphone |
| CN107205197A (en) * | 2016-03-16 | 2017-09-26 | 瑞轩科技股份有限公司 | Balance push-pull type loudspeaker device and its control method, audio frequency processing circuit and method |
| CN207995365U (en) * | 2018-03-28 | 2018-10-19 | 广州市智泓电子有限公司 | A kind of band positive, which recommends air, can convert loudspeaker acoustic enclosure |
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| CN108322847A (en) | 2018-07-24 |
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