CN106331939B - Integral type bar audio amplifier - Google Patents
Integral type bar audio amplifier Download PDFInfo
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- CN106331939B CN106331939B CN201510344327.5A CN201510344327A CN106331939B CN 106331939 B CN106331939 B CN 106331939B CN 201510344327 A CN201510344327 A CN 201510344327A CN 106331939 B CN106331939 B CN 106331939B
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Abstract
The invention relates to a sound box, in particular to an integrated bar-shaped sound box which comprises a first bass box body, a second bass box body, a middle and high pitch box body, a woofer and a middle and high pitch loudspeaker, wherein the first bass box body and the second bass box body form the bass sound box, the woofer is arranged on the wall of the second bass box body between the first bass box body and the second bass box body, namely the first bass box body and the second bass box body are separated by the wall of the second bass box body, the first bass box body and the second bass box body are respectively provided with a first sound guide pipe, a second sound guide pipe, a first sound outlet and a second sound outlet, the middle and high pitch box body is an independent box body and is arranged in the first bass box body or the first bass box body and the second bass box body, and the middle and high pitch loudspeaker is arranged in the middle and high pitch box body. The bar-shaped sound box of the invention abandons an independent large bass sound box, the first bass sound box and the second bass sound box generate muddy bass, and the independent middle-high sound box plays the middle-high sound to the listening space clearly.
Description
Technical Field
The invention relates to a sound box, in particular to an integrated strip-shaped sound box.
Background
With the development of the times and the technical progress, people have higher and higher requirements on the diversity and the tone quality of the playing sound box of the sound. On the other hand, the thinner the modern flat tv set is, the worse the sound quality is, because the thinner the flat tv set is, the smaller and thinner the speaker and the speaker box thereof have to be, resulting in poor bass effect. Accordingly, Soundbar enclosures have been developed and produced by the current state of the art, which consist of a bar-shaped enclosure and a large bass enclosure (e.g., an 8-inch loudspeaker enclosure), i.e., a subwoofer. In a loudspeaker and sound box design manual published by Fujian scientific and technical publishers in 2008 in 7 months, closed sound boxes (60-67 pages), open sound boxes (67-77 pages) and passive radiation sound boxes (77-78 pages) are disclosed; the sound boxes of the prior art are either too large in size and poor in quality, or have small bass playback effect and are not good. Therefore, the Soundbar sound box sold in the market at present, which is also called as a television sound box, is provided with a large bass sound box which is not easy to place, has poor bass effect and high cost, and the use of the Soundbar sound box is limited.
Disclosure of Invention
The invention aims to solve the problems of large volume and poor sound quality of the conventional bar-shaped sound box due to the large size, difficult placement and high cost of a subwoofer.
The purpose of the invention is realized by the following technical scheme:
the integrated bar-type sound box comprises a first bass box body, a second bass box body, a first sound guide pipe, a second sound guide pipe, a woofer, a middle and high sound box body and a middle and high sound loudspeaker, wherein the first bass box body is bar-shaped, one or more second bass box bodies are arranged in the first bass box body, the first bass box body and the second bass box body are separated into relatively independent spaces through second bass box walls of the second bass box bodies, and the woofers are arranged on the second bass box walls; a first bass outlet is formed in any surface of the first bass box body, and a first sound guide pipe which is positioned in the first bass box body and is used for communicating the interior of the first bass box body with an external listening space is arranged on the first bass outlet; each second bass box body is internally provided with a second sound guide pipe which communicates the interior of the second bass box body with the external listening space; and a middle and high sound box body internally provided with a middle and high sound loudspeaker is arranged in the bar-shaped sound box.
Wherein: each second bass box body is internally provided with a second sound guide pipe, each second sound guide pipe penetrates out of the corresponding second bass box body, and the first bass box body is provided with second bass outlets which are the same as the second sound guide pipes in number and are in one-to-one correspondence with the second sound guide pipes; or at least one surface of each second bass box body is coplanar with the first bass box body, a second bass outlet is arranged on the coplanar surface, and a second sound guide pipe which is positioned in the second bass box body and is used for communicating the interior of the second bass box body with the external listening space is arranged on the second bass outlet; the volume of the first bass box body is larger than that of the second bass box body; the middle-high sound box body internally provided with middle-high sound loudspeakers is symmetrically arranged at the two ends of the first bass box body in the length direction;
the integrated bar-type sound box comprises a first bass box body, a second bass box body, a first sound guide pipe, a second sound guide pipe, a woofer, a middle and high sound box body and a middle and high sound loudspeaker, wherein a second bass box body is arranged at any end or two ends of the first bass box body, the second bass box body and the first bass box body are arranged side by side to form an integrated bar-type sound box, the first bass box body and the second bass box body are separated into relatively independent spaces through second bass box walls, and the woofer is arranged on the second bass box walls; a first bass outlet is formed in any surface of the first bass box body, and a first sound guide pipe which is positioned in the first bass box body and is used for communicating the interior of the first bass box body with an external listening space is arranged on the first bass outlet; a second bass outlet is formed in the surface of each second bass box body, and a second sound guide pipe which is positioned in the second bass box body and is used for communicating the interior of the second bass box body with the external listening space is arranged on the second bass outlet; a middle-high sound box body internally provided with a middle-high sound loudspeaker is arranged in the bar-shaped sound box formed by the first low sound box body and the second low sound box body;
wherein: the volume of the first bass box body is larger than or equal to that of the second bass box body; middle and high sound boxes with middle and high sound speakers are symmetrically arranged at two ends of the length direction of the bar-shaped sound box formed by the first bass box and the second bass box, and the middle and high sound boxes are positioned in the first bass box and the second bass box or in the second bass boxes at two ends of the first bass box;
the number of the middle and high-pitch loudspeakers in each middle and high-pitch box body is the same, the loudspeaker unit vibrating diaphragms of the middle and high-pitch loudspeakers are installed towards the outside of the box body of the bar-shaped sound box, and the loudspeaker units of the middle and high-pitch loudspeakers are connected in an electro-acoustic in-phase mode; two middle and high-pitch loudspeakers are installed in each middle and high-pitch box body, a V-shaped part is formed between vibrating diaphragms of the two middle and high-pitch loudspeakers in each middle and high-pitch box body, and an opening of the V-shaped part faces the outside of the box body of the bar-shaped sound box; all vibrating diaphragms of the woofers vibrate in the same phase, namely, the woofers vibrate in the first bass box body simultaneously or vibrate in the second bass box body simultaneously; the mid-high range speakers are in electro-acoustic phase with each of the woofers; the length of the first sound guide pipe is greater than or equal to that of the second sound guide pipe, and the sectional area of the first sound guide pipe is greater than or equal to that of the second sound guide pipe; and each bass loudspeaker is connected with the low-frequency power output of the audio power amplifier, and each middle and high-frequency loudspeaker is connected with the left and right sound channel full-frequency power output or the single-channel full-frequency power output of the audio power amplifier.
The invention has the advantages and positive effects that:
1. the Sound bar (Soundbar) of the invention abandons a large bass Sound box (subwoofer), successfully solves the problems of occupying space, influencing beauty and difficult placement of the subwoofer, can complete all functions of Sound bar including bass by only one Sound bar, greatly saves materials and greatly reduces system cost.
2. The loudspeaker diaphragm and the magnet which produce bass of the Soundbar are arranged in the box body and do not face to the listening space, so that no medium-high sound is directly radiated to the listening space, and pure, clean and clear bass can be obtained.
3. The middle and high sound of the Soundbar is generated by the middle and high sound loudspeakers at the two ends of the bar-shaped box body, the loudspeaker diaphragms are outwards arranged, the middle and high sound can be directly radiated to a listening space, clear and bright middle and high sound can be obtained, and meanwhile, the stereo effect is enhanced.
4. The plurality of middle and high-sound loudspeakers of each sound channel of the Soundbar are divided into two parts, the vibrating diaphragms of the loudspeaker units of the two parts are arranged at an angle, and a better sound field effect is obtained through direct radiation and reflection of sound waves.
5. The Soundbar of the invention is composed of bass of a plurality of woofers, and utilizes bass sound waves generated in front of and behind a loudspeaker diaphragm, and the woofers are mutually matched to enhance the bass.
6. The bass box of the bar-shaped sound box consists of double boxes or a plurality of boxes, and is also provided with respective sound guide tubes and respective sound outlets, so that bass is greatly enhanced.
7. According to the bar-shaped sound box, the woofers are symmetrically arranged, the vibration amplitudes of the two vibrating diaphragms are equal, the vibration directions are opposite, and the vibration force is completely offset, so that the mechanical vibration of the whole bar-shaped sound box is very small, and the mechanical displacement of the sound box body is reduced.
8. The loudspeaker of the bar-shaped sound box adopts a plurality of loudspeaker units, so that the power of the whole sound box is increased, and the distortion degree is reduced.
9. The bar-shaped sound box has the advantages of small volume, light weight, small mechanical vibration and very convenient use, and can be well applied to various sound boxes and used as an independent television sound box and a flat television.
10. The integrated bar-shaped sound box has the advantages that because the bass and the middle treble are all sounded in the same box body, the low, middle and high sound sources are concentrated, the sound image is well positioned, the sound presence is enhanced, and the sound field is more vivid. The sound image positioning error caused by different positions of the traditional subwoofer for generating bass and the strip-shaped sound box for generating medium and high sound which are respectively placed is overcome.
Drawings
FIG. 1A is a front cross-sectional view of a first embodiment of the present invention;
FIG. 1B is a top view of FIG. 1A;
FIG. 1C is a left side view of FIG. 1A;
FIG. 2A is a front cross-sectional view of a second embodiment of the present invention;
FIG. 2B is a bottom view of FIG. 2A;
FIG. 2C is a left side view of FIG. 2A;
FIG. 3A is a front cross-sectional view of a third embodiment of the present invention;
FIG. 3B is a bottom view of FIG. 3A;
FIG. 3C is a left side view of FIG. 3A;
FIG. 4A is a front cross-sectional view of a fourth embodiment of the present invention;
FIG. 4B is a bottom view of FIG. 4A;
FIG. 4C is a left side view of FIG. 4A;
FIG. 5A is a front cross-sectional view of a fifth embodiment of the present invention;
FIG. 5B is a bottom view of FIG. 5A;
FIG. 5C is a left side view of FIG. 5A;
FIG. 6A is a front cross-sectional view of a sixth embodiment of the present invention;
FIG. 6B is a bottom view of FIG. 6A;
FIG. 6C is a left side view of FIG. 6A;
FIG. 7A is a front cross-sectional view of a seventh embodiment of the present invention;
FIG. 7B is a bottom view of FIG. 7A;
FIG. 7C is a left side view of FIG. 7A;
FIG. 8A is a front cross-sectional view of an eighth embodiment of the present invention;
FIG. 8B is a top view of FIG. 8A;
FIG. 8C is a left side view of FIG. 8A;
FIG. 9A is a front cross-sectional view of a ninth embodiment of the present invention;
FIG. 9B is a top view of FIG. 9A;
FIG. 9C is a left side view of FIG. 9A;
fig. 10A is a front sectional view of a tenth embodiment of the invention;
FIG. 10B is a top view of FIG. 10A;
FIG. 10C is a left side view of FIG. 10A;
FIG. 11A is a front cross-sectional view of an eleventh embodiment of the invention;
FIG. 11B is a top view of FIG. 11A;
FIG. 11C is a left side view of FIG. 11A;
FIG. 12A is a front cross-sectional view of a twelfth embodiment of the invention;
FIG. 12B is a bottom view of FIG. 12A;
FIG. 12C is a left side view of FIG. 12A;
wherein: the loudspeaker box comprises a first bass box body 1, a second bass box body 2, a first sound guide pipe 3, a first bass outlet 4, a second sound guide pipe 5, a second bass outlet 6, a woofer 7, a second bass box wall 8, a middle-high box body 9 and a middle-high loudspeaker 10.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The integrated bar sound box of the invention has only one bar sound box (without subwoofer) in appearance. The bar-type sound box comprises a first bass box body 1, a second bass box body 2, a first sound guide pipe 3, a second sound guide pipe 5, a woofer 7, a middle and high sound box body 9 and a middle and high sound loudspeaker 10, wherein the first bass box body 1 is bar-shaped, one or more second bass box bodies 2 are arranged in the first bass box body 1, and when the number of the second bass box bodies 2 is multiple, the second bass box bodies are arranged in the first bass box body 1 side by side; the volume of the first bass box 1 is greater than the volume of the second bass box 2. The first bass box body 1 and the second bass box body 2 are separated into relatively independent spaces through a second bass box wall 8 of the second bass box body 2, and a bass loudspeaker 7 is installed on the second bass box wall 8. A first bass outlet 4 is arranged on any surface of the first bass box body 1, and a first sound guide pipe 3 which is positioned in the first bass box body 1 and communicates the interior of the first bass box body 1 with the external listening space is arranged on the first bass outlet 4. Every second bass box 2 is equipped with second sound conduction pipe 5 in, every second sound conduction pipe 5 is worn out by respective second bass box 2, it has the second bass export 6 the same with second sound conduction pipe 5 quantity to open on the first bass box 1 to with each second sound conduction pipe 5 one-to-one, each second bass box 2 is linked together with external listening air tone through respective second sound conduction pipe 5. Or, at least one surface of each second bass box body 2 is coplanar with the first bass box body 1, and when a plurality of second bass box bodies 2 are arranged, the same surface of each second bass box body 2 is coplanar with the first bass box body 1; a second bass outlet 6 is arranged on the coplanar surface of the second bass box body 2 and the first bass box body 1, and a second sound guide pipe 5 which is positioned inside the second bass box body 2 and communicates the inside of the second bass box body 2 with the external listening space is arranged on the second bass outlet 6. The length of the first sound guiding pipe 3 is greater than or equal to the length of the second sound guiding pipe 5, and the sectional area of the first sound guiding pipe 3 is greater than or equal to the sectional area of the second sound guiding pipe 5. A middle and high sound box body 9 with a middle and high sound loudspeaker 10 arranged inside is arranged in the strip-shaped sound box, and the middle and high sound box body 9 is an independent box body and can be one or more than two; the left end and the right end of the first bass box body 1 in the length direction are symmetrically provided with medium and high sound box bodies 9 in which medium and high sound loudspeakers 10 are arranged, the number of the medium and high sound loudspeakers 10 in each medium and high sound box body 9 is the same, the number of the medium and high sound loudspeakers 10 is one to six loudspeaker units, loudspeaker unit diaphragms of each medium and high sound loudspeaker 10 are arranged towards the outside of the box body of the bar-shaped sound box, and the loudspeaker units of each medium and high sound loudspeaker 10 are connected in electro-acoustic same phase. The vibration directions of the diaphragms of the woofers 7 are the same, and vibrate synchronously, and the midrange woofer 10 vibrates synchronously with each woofer 7. The woofers 7 are connected to the low-frequency power output (subwoofer output) of the audio power amplifier, and the midrange loudspeakers 10 are connected to the left and right channel full-band power outputs or the monaural full-band power output of the audio power amplifier.
Or, any one or two ends of the first bass box body 1 are provided with a second bass box body 2, the second bass box body 2 and the first bass box body 1 are arranged side by side to form an integrated bar-shaped sound box, and the volume of the first bass box body 1 is larger than or equal to that of the second bass box body 2. The first bass box body 1 and the second bass box body 2 are separated into relatively independent spaces through a second bass box wall 8, and a woofer 7 is mounted on the second bass box wall 8. Any surface of the first bass box body 1 is provided with a first bass outlet 4, and the first bass outlet 4 is provided with a first sound guide pipe 3 which is positioned inside the first bass box body 1 and communicates the inside of the first bass box body 1 with the outside listening space. A second bass outlet 6 is arranged on the surface of each second bass box body 2, and a second sound guide pipe 5 which is positioned inside the second bass box body 2 and communicates the inside of the second bass box body 2 with the outside listening space is arranged on the second bass outlet 6. The length of the first sound guiding pipe 3 is greater than or equal to the length of the second sound guiding pipe 5, and the sectional area of the first sound guiding pipe 3 is greater than or equal to the sectional area of the second sound guiding pipe 5. A middle and high sound box body 9 in which a middle and high sound loudspeaker 10 is arranged in the bar-shaped sound box formed by the first low sound box body 1 and the second low sound box body 2, and the middle and high sound box bodies 9 are independent box bodies and can be one or more, and the number of the middle and high sound box bodies is two; the left and right ends of the length direction of the bar-shaped sound box formed by the first and second bass boxes 1 and 2 are symmetrically provided with middle and high sound boxes 9 in which middle and high sound loudspeakers 10 are arranged, namely, one middle and high sound box 9 is positioned in the first box 1 and close to the right end of the whole bar-shaped sound box, and the other middle and high sound box 9 is positioned in the second bass box 2 and close to the left end of the whole bar-shaped sound box; or the two middle and high sound boxes 9 are respectively positioned in the second bass boxes 2 at the two ends of the first bass box 1. The middle and high sound box bodies 9 are independent box bodies, the number of the middle and high sound loudspeakers 10 in each middle and high sound box body 9 is the same, the loudspeaker unit vibrating diaphragms of each middle and high sound loudspeaker 10 are installed towards the outside of the box body of the bar-shaped sound box, and the loudspeaker units of the middle and high sound loudspeakers 10 are connected in an electro-acoustic mode. The vibration directions of the diaphragms of the woofers 7 are the same, and vibrate synchronously, and the midrange woofer 10 vibrates synchronously with each woofer 7. The woofers 7 are connected to the low-frequency power output (subwoofer output) of the audio power amplifier, and the midrange loudspeakers 10 are connected to the left and right channel full-band power outputs or the monaural full-band power output of the audio power amplifier.
Example one
As shown in fig. 1A to 1C, the bar cabinet of the present embodiment is divided into four chambers, i.e., a first and a second bass cabinets 1 and 2 and two middle-high cabinets 9, and the second bass cabinet 2 is located inside the first bass cabinet 1, and one surface thereof is coplanar with one surface of the first bass cabinet 1. The first bass box body 1 and the second bass box body 2 are separated by a second bass box wall 8, and the section of the second bass box wall 8 of the embodiment is in an isosceles trapezoid shape and is positioned between the first bass box body 1 and the second bass box body 2; the two bass loudspeakers 7 are symmetrically arranged on two waists of the isosceles trapezoid, the two bass loudspeakers 7 are close to the corner of the coplanar surface of the second bass box body 2 and the first bass box body 1, the magnets of the two bass loudspeakers 7 are positioned in the first bass box body 1, and the bass loudspeakers 7 of the embodiment are two bass loudspeaker units with the diameter of 92 mm; the first bass outlet 4 is positioned on any box wall of the first bass box body 1, the first sound guide pipe 3 corresponds to the first bass outlet 4, the cross section of the first sound guide pipe 3 can be circular, square, rectangular or other shapes, and the embodiment is circular; the first bass outlet 4 may be circular, square, rectangular or other shape, in this embodiment circular. A second bass outlet 6 is provided on any surface of the second bass box 2 except for the surface on which the woofer 7 is mounted, a second sound guide duct 5 corresponds to the second bass outlet 6, and the second bass outlet 6 of the present embodiment is provided on a surface of the second bass box 2 coplanar with the first bass box 1. The cross section of the second sound guiding pipe 5 can be circular, square, rectangle or other shapes, and the embodiment is circular; the second bass outlet 6 may be circular or may be square, rectangular or of another shape. The length of the first sound guide pipe 3 is larger than or equal to the length of the second sound guide pipe 5, when the installation distance of the first sound guide pipe 3 and the second sound guide pipe 5 is not enough,all the sound guide tubes can be manufactured into curved shapes, the length of the first sound guide tube 3 is 200mm, and the length of the second sound guide tube 5 is 120 mm; the sectional area of the first sound guiding pipe 3 is larger than that of the second sound guiding pipe 5, and the sectional area of the first sound guiding pipe 3 is 800mm in this embodiment 2 The cross-sectional area of the second sound guiding pipe 5 is 615mm 2 (ii) a The first and second sound guiding tubes 3 and 5 may be made of paper tubes, plastic tubes or metal tubes, and the first and second sound guiding tubes 3 and 5 of this embodiment are made of plastic. The middle and high sound box bodies 9 can be two, or one or three to five, the middle and high sound box bodies 9 are independent box bodies, the middle and high sound box bodies 9 are two in the embodiment, the middle and high sound box bodies are respectively arranged at the outer positions of the left end and the right end of the whole strip-shaped sound box, the two middle and high sound box bodies 9 are arranged at the left end and the right end of the length direction in the first bass box body 1, and the first sound guide tube 3 is positioned at one side of the middle and high sound box body 9 at the right end. Each middle and high sound loudspeaker 10 is arranged in the middle and high sound box body 9, each middle and high sound box body 9 can be provided with one to three loudspeaker units, and each loudspeaker unit can be the same or different; in the present embodiment, a full range speaker unit is installed in each middle and high sound box 9, and these full range speaker units are all the same speaker units. The present embodiment is a 53mm diameter speaker, and note that all the speaker units of the mid-high range speaker 10 are vibrating diaphragms and are installed outside the sound bar, and all the speaker units are in the same phase as the electric sound, that is, the vibrating diaphragms of the speaker units of two bass speakers 7 all vibrate toward the inside of the second bass box 2 at the same time, and vice versa all vibrate toward the inside of the first bass box 1 at the same time. The two woofers 7 are connected to the woofer power output of the audio power amplifier, and the two mid-to-high loudspeakers 10 are connected to the left and right audio power outputs of the audio power amplifier, respectively, and ensure electro-acoustic in-phase connection. The first, second bass boxes 1, 2 and the middle treble box 9 of this embodiment can be made of plastic, also can be made of wood, metal material, the first, second bass boxes 1, 2 and the middle treble box 9 of this embodiment are all made of plastic by the mold-opening injection molding method, the appearance and physical mechanical structure are designed first, then the mold is made, finally the injection molding machine is used to make the bar-shaped sound box appearance ruler of this embodimentInches is 940mm (width) x 110mm (height) x 78mm (thickness).
Example two
As shown in fig. 2A to 2C, the present embodiment is different from the first embodiment in that: in the first embodiment, the vibrating diaphragms of the two middle and high-pitch loudspeakers 10 are arranged on the front box wall of the whole bar-shaped sound box, and the second low-pitch outlet 6 is arranged on the rear box wall of the bar-shaped sound box; in this embodiment, the vibrating diaphragms and the second bass outlets of the two middle-high speakers 10 are both disposed on the rear wall of the whole sound bar, that is, the rear wall of the sound bar of the first embodiment is used as the front wall of the sound bar of this embodiment. The rest is the same as in the first embodiment.
EXAMPLE III
As shown in fig. 3A to 3C, the present embodiment is different from the first embodiment in that: the installation directions of the woofers 7 on the two waists of the second bass box wall 8 of the isosceles trapezoid are opposite, namely, the magnet of the woofer 7 on one waist of the isosceles trapezoid is positioned in the first bass box body 1, and the magnet of the woofer 7 on the other waist is positioned in the second bass box body 2; at this time, it is necessary to note that the diaphragms of the two woofers 7 are vibrated simultaneously into the first bass box 1 or simultaneously into the second bass box 2. The rest is the same as the first embodiment.
Example four
As shown in fig. 4A to 4C, the present embodiment is different from the first embodiment in that: the two woofers 7 are mounted on the second bass box wall 8 in the opposite direction to the first embodiment, in which the magnets of the two woofers 7 are located in the first bass box 1, and the magnets of the two woofers 7 are located in the second bass box 2. The rest is the same as the first embodiment.
EXAMPLE five
As shown in fig. 5A to 5C, the bar-shaped cabinet of the present embodiment is divided into four cavities, i.e. a first bass cabinet 1, a second bass cabinet 2 and two middle and high-pitch cabinets 9, the second bass cabinet 2 is arranged side by side with the first bass cabinet 1 and is located at one end of the first bass cabinet 1 to form an integrated bar-shaped sound box, and the cross section of the second bass box wall 8 separating the first bass cabinet 1 and the second bass cabinet 2 is a middle and a barThe middle partition plates are parallel to the front box wall and the rear box wall of the box body, vertical partition plates perpendicular to the partition plates are respectively arranged at two ends of the middle partition plates, and the two vertical partition plates are respectively and vertically connected with the front box wall and the rear box wall of the strip-shaped sound box. The two woofers 7 are arranged on the middle partition board of the second bass box wall 8, the magnet is positioned in the second bass box body 2, and the vibrating diaphragms of the two woofers 7 also vibrate towards the first bass box body 1 at the same time or vibrate towards the second bass box body 2 at the same time. The first bass outlet 4 is positioned on any box wall of the first bass box body 1, the first sound guide pipe 3 corresponds to the first bass outlet 4, the cross section of the first sound guide pipe 3 can be circular, square, rectangular or other shapes, and the embodiment is circular; the first bass outlet 4 may be circular, square, rectangular or other shape, in this embodiment circular. The second bass outlet 6 is positioned on any surface of the second bass box 2 except for the surface where the woofer 7 is installed, the second sound guide pipe 5 corresponds to the second bass outlet 6, and the second bass outlet 6 of the embodiment is arranged on the surface of the top end box wall of the second bass box 2. The cross section of the second sound guiding pipe 5 can be circular, square, rectangle or other shapes, and the embodiment is circular; the second bass outlet 6 may be circular or square, rectangular or other shape. The length of the first sound guiding pipe 3 is greater than or equal to the length of the second sound guiding pipe 5, the length of the first sound guiding pipe 3 is 200mm in the embodiment, and the length of the second sound guiding pipe 5 is 120 mm; the sectional area of the first sound guiding pipe 3 is larger than that of the second sound guiding pipe 5, and the sectional area of the first sound guiding pipe 3 is 800mm in this embodiment 2 The cross-sectional area of the second sound guiding pipe 5 is 615mm 2 (ii) a The first and second sound guiding tubes 3 and 5 may be made of paper tubes, plastic tubes or metal tubes, and the first and second sound guiding tubes 3 and 5 of this embodiment are made of plastic. The middle and high sound boxes 9 may be two, or one or three to five, these middle and high sound boxes 9 are independent boxes, the middle and high sound boxes 9 of this embodiment are two, they are respectively disposed at the outer positions of the left and right ends of the whole bar-shaped sound box, one of the two middle and high sound boxes 9 of this embodiment is located in the length direction in the first bass box 1The right end, another is located the left end of length direction in the second bass box 2, and first sound guide pipe 3 is located one side of the high-pitched box 9 in the right end, and second sound guide pipe 5 is located one side of the high-pitched box 9 in the left end. Each middle and high sound loudspeaker 10 is arranged in the middle and high sound box body 9, each middle and high sound box body 9 can be provided with one to six loudspeaker units, and each loudspeaker unit can be the same or different; in the present embodiment, a full-range speaker unit is installed in each of the middle and high sound boxes 9, and these full-range speaker units are the same speaker unit. The present embodiment is a 53mm diameter speaker, and note that all the speaker units of the mid-high range speaker 10 are vibrating diaphragms and are installed outside the sound bar, and all the speaker units are in the same phase as the electric sound, that is, the vibrating diaphragms of the speaker units of two bass speakers 7 all vibrate toward the inside of the second bass box 2 at the same time, and vice versa all vibrate toward the inside of the first bass box 1 at the same time. Two woofers 7 are connected to the woofer power output of the audio power amplifier, and two mid-to-high speakers 10 are connected to the left and right audio power outputs of the audio power amplifier, respectively, with the electro-acoustic in-phase connections ensured. The first, second bass boxes 1, 2 and the middle treble box 9 of this embodiment are made of plastic, or wood or metal, and the first, second bass boxes 1, 2 and the middle treble box 9 of this embodiment are made of plastic by a mold-opening injection molding method, wherein the appearance and the physical mechanical structure are designed, then a mold is manufactured, and finally an injection molding machine is used to manufacture the bar-shaped sound box of this embodiment, the external dimension of which is 940mm (width) × 110mm (height) × 78mm (thickness).
EXAMPLE six
As shown in fig. 6A to 6C, the present embodiment is different from the fifth embodiment in that: the two woofers 7 are mounted in the opposite direction to that of the fifth embodiment, i.e. the magnets of the two woofers 7 are located in the second bass box 2 in the fifth embodiment, and the magnets of the two woofers 7 are located in the first bass box 1 in the fifth embodiment. The rest is the same as the fifth embodiment.
EXAMPLE seven
As shown in fig. 7A to 7C, the present embodiment is different from the first embodiment in that: two middle and high-sound loudspeakers 10 are installed in each middle and high-sound box body 9, a V-shaped part is formed between the vibrating diaphragms of the two middle and high-sound loudspeakers 10 in each middle and high-sound box body 9, and the opening of the V-shaped part faces the outside of the box body of the bar-shaped sound box. The rest is the same as in the first embodiment.
Example eight
As shown in fig. 8A to 8C, the present embodiment is different from the first embodiment in that: two middle and high-pitch speakers 10 are installed in each middle and high-pitch box body 9, and vibrating diaphragms of the two middle and high-pitch speakers 10 in each middle and high-pitch box body 9 are arranged up and down and installed on the same box wall (front box wall) of the strip-shaped sound box. The rest is the same as the first embodiment.
Example nine
As shown in fig. 9A to 9C, the present embodiment is different from the first embodiment in that: two middle and high-pitch speakers 10 are installed in each middle and high-pitch box body 9, and vibrating diaphragms of the two middle and high-pitch speakers 10 in each middle and high-pitch box body 9 are arranged in a left-right mode and installed on the same box wall (front box wall) of the strip-shaped sound box. The rest is the same as the first embodiment.
EXAMPLE ten
As shown in fig. 10A to 10C, the present embodiment is different from the first embodiment in that: the cross section of the second bass box wall 8 separating the first and second bass boxes 1, 2 is an isosceles triangle (also can be an equilateral triangle), the bottom side of the isosceles triangle is the surface coplanar with the first bass box 1, the two bass loudspeakers 7 are arranged on the two waists of the isosceles triangle, and the magnet is located in the first bass box 1. In addition, two middle and high sound speakers 10 are installed in each middle and high sound box body 9, and the two middle and high sound speakers 10 in each middle and high sound box body 9 are composed of different speaker units, for example, a full range speaker unit and a high frequency speaker unit, and the two speaker units are arranged up and down and installed on the same box wall (front box wall) of the bar-type sound box. The rest is the same as the first embodiment.
EXAMPLE eleven
As shown in fig. 11A to 11C, the present embodiment is different from the first embodiment in that: the bar-shaped box body of the present embodiment is divided into five cavities, the second bass box bodies 2 are two and are arranged in the first bass box body 1 side by side, and the same surface of the two second bass box bodies 2 is coplanar with one surface of the first bass box body 1. Every second bass box 2 all separates with first bass box 1 through respective second bass box wall 8, and the cross-section of every second bass box wall 8 is isosceles trapezoid, all installs a woofer 7 on two waists of every isosceles trapezoid, and four woofer 7's magnet all is located first bass box 1, and four woofer 7's vibrating diaphragm also need vibrate to 1 direction of first bass box simultaneously, or vibrate to 2 directions of second bass box simultaneously. A second bass outlet 6 is arranged on the coplanar surface in each second bass box body 2, and a second sound guide pipe 5 corresponds to the second bass outlet 6. The rest is the same as the first embodiment.
EXAMPLE twelve
As shown in fig. 12A to 12C, the present embodiment is different from the fifth embodiment in that: the bar box of this embodiment is separated into five cavitys, and second bass box 2 is two, is located the both sides of first bass box 1 respectively, sets up side by side with first bass box 1, forms integral type bar audio amplifier. The first and second bass boxes 1, 2 are separated by respective second bass box walls 8. And a second bass outlet 6 is respectively arranged in each second bass box body 2, and each second bass outlet 6 corresponds to one second sound guide pipe 5. Every second bass box wall 8 is last all to be equipped with two woofers 7, and four woofers 7's vibrating diaphragm vibration direction will vibrate simultaneously to first bass box 1 in, or vibrate simultaneously to second bass box 2 in. The rest is the same as the fifth embodiment.
The working principle of the invention is as follows:
when the output low-frequency power of the low-frequency power amplifier of the audio power amplifier is applied to the woofer 7, the speaker unit of the woofer 7 performs electro-acoustic conversion, and when the diaphragm of the speaker unit of the woofer 7 vibrates in the direction of the first bass box 1, the air in the first bass box 1 is compressed, so that the air pressure in the first bass box 1 is greater than the atmospheric pressure, and the air is forced to be transmitted to the ambient atmosphere through the first sound guide pipe 3 and the first bass outlet 4, and simultaneously, the air pressure in the second bass box 2 is lower than the atmospheric pressure, and the air in the atmosphere is forced to be transmitted to the second bass box 2 through the second bass outlet 6 and the second sound guide pipe 5. On the contrary, when the diaphragm of the speaker unit of the woofer 7 vibrates towards the second bass box 2, the air in the second bass box 2 is compressed, so that the air pressure in the second bass box 2 is greater than the ambient atmospheric pressure, the air in the second bass box 2 is forced to be transmitted to the ambient atmosphere through the second sound guide pipe 5 and the second bass outlet 6, meanwhile, the air pressure in the first bass box 1 is smaller than the ambient atmospheric pressure, and the air in the ambient atmosphere is forced to be transmitted to the first bass box 1 through the first bass outlet 4 and the first sound guide pipe 3. In the process of repeated reciprocation, the low-frequency sound airflow is powerfully enhanced, so that the low-frequency sound wave which is perfectly thick, shocked and elastic is obtained. In addition, when the full frequency power output of the audio power amplifier is applied to the speaker units of the medium-high sound speaker 10, because all the speaker units are the speaker unit diaphragms which are installed outwards, the generated medium-high sound waves are directly radiated to an audible space, so that clear and bright medium-high sound can be obtained, and especially when the two speaker units are installed in the medium-high sound box body 9 at an angle, the radiation directions of the two speaker units are different, so that the sound field effect is greatly improved.
If the strip-shaped sound box is formed by a first bass box body 1 and one or more second bass box bodies 2 in parallel, when the vibrating diaphragms of the loudspeaker units of the bass loudspeakers 7 vibrate towards the same direction, the air pressure in only one box body in each box body is smaller than the ambient atmospheric pressure, the air pressure in other box bodies is larger than the ambient atmospheric pressure, and the air is forced to be transmitted to the ambient atmosphere through the sound guide pipes and the bass outlets in the respective box bodies; meanwhile, the air pressure is less than the ambient atmospheric pressure, and the ambient atmospheric air is transmitted into the box body through the bass outlet of the box body and the sound guide pipe. In the process of repeated reciprocation, the low-frequency sound airflow is powerfully enhanced, so that the low-frequency sound wave which is perfectly thick, shocked and elastic is obtained. In addition, when the full frequency power output of the audio power amplifier is applied to the speaker units of the medium-high sound speaker 10, because all the speaker units are the speaker unit diaphragms which are installed outwards, the generated medium-high sound waves are directly radiated to an audible space, so that clear and bright medium-high sound can be obtained, and especially when the two speaker units are installed in the medium-high sound box body 9 at an angle, the radiation directions of the two speaker units are different, so that the sound field effect is greatly improved.
The integrated bar-shaped sound box adopts an innovative bass box acoustic physical structure, and the middle-high pitch boxes are organically combined in one bar-shaped box, so that a large and difficultly-placed bass speaker is abandoned, high-quality full-range audio playing including bass is realized by using only one bar-shaped sound box, the manufacturing cost is reduced, and the use of materials is reduced.
Claims (8)
1. The utility model provides an integral type bar audio amplifier which characterized in that: including first bass box (1), second bass box (2), first leading note pipe (3), second leading note pipe (5), woofer (7), well high-pitched box (9) and well high-pitched speaker (10), wherein first bass box (1) is the bar, is equipped with one or more second bass box (2) in the inside of this first bass box (1), separate into relatively independent space through second bass box wall (8) of second bass box (2) between first bass box (1) and second bass box (2), install woofer (7) on second bass box wall (8), every woofer (7) of installing on second bass box wall (8) are two, the cross-section of second bass box wall (8) is isosceles trapezoid, two woofer (7) are installed symmetrically on two waists of the isosceles trapezoid cross-section of second bass box wall (8), And close to the corner of the coplanar surface of the second bass box body (2) and the first bass box body (1), the magnets of the two bass loudspeakers (7) are positioned in the first bass box body (1); a first bass outlet (4) is formed in any surface of the first bass box body (1), and a first sound guide pipe (3) which is positioned in the first bass box body (1) and communicates the interior of the first bass box body (1) with an external listening space is arranged on the first bass outlet (4); a second sound guide pipe (5) for communicating the interior of the second bass box body (2) with the external listening space is arranged in each second bass box body (2); a middle and high sound box body (9) internally provided with a middle and high sound loudspeaker (10) is arranged in the bar-shaped sound box;
the number of the medium and high sound loudspeakers (10) in each medium and high sound box body (9) is the same, the loudspeaker unit vibrating diaphragm of each medium and high sound loudspeaker (10) faces the outside of the box body of the bar-shaped sound box, and the loudspeaker units of the medium and high sound loudspeakers (10) are connected in electro-acoustic mode; two middle and high-sound loudspeakers (10) are installed in each middle and high-sound box body (9), a V-shaped diaphragm is arranged between the vibrating diaphragms of the two middle and high-sound loudspeakers (10) in each middle and high-sound box body (9), and the opening of the V-shaped diaphragm faces the outside of the box body of the bar-shaped sound box.
2. The integrated sound bar of claim 1, wherein: a second sound guide pipe (5) is arranged in each second bass box body (2), each second sound guide pipe (5) penetrates through the corresponding second bass box body (2), and second bass outlets (6) with the same number as the second sound guide pipes (5) are formed in the first bass box body (1) and correspond to the second sound guide pipes (5) one by one; or at least one surface of each second bass box body (2) is coplanar with the first bass box body (1), a second bass outlet (6) is arranged on the coplanar surface, and a second sound guide pipe (5) which is positioned in the second bass box body (2) and communicates the interior of the second bass box body (2) with the external listening space is arranged on the second bass outlet (6).
3. The integrated sound bar of claim 1, wherein: the volume of the first bass box body (1) is larger than that of the second bass box body (2); and the two ends of the first bass box body (1) in the length direction are symmetrically provided with middle and high sound box bodies (9) in which middle and high sound loudspeakers (10) are arranged.
4. The utility model provides an integral type bar audio amplifier which characterized in that: the loudspeaker comprises a first bass box body (1), a second bass box body (2), a first sound guide pipe (3), a second sound guide pipe (5), a woofer (7), a middle and high sound box body (9) and a middle and high sound loudspeaker (10), wherein the second bass box body (2) is arranged at two ends of the first bass box body (1), the second bass box body (2) and the first bass box body (1) are arranged side by side to form an integrated bar-shaped loudspeaker box, a relatively independent space is separated between the first bass box body (1) and the second bass box body (2) through a second bass box wall (8), and the woofer (7) is arranged on the second bass box wall (8); a first bass outlet (4) is formed in any surface of the first bass box body (1), and a first sound guide pipe (3) which is positioned in the first bass box body (1) and communicates the interior of the first bass box body (1) with an external listening space is arranged on the first bass outlet (4); a second bass outlet (6) is formed in the surface of each second bass box body (2), and a second sound guide pipe (5) which is positioned in the second bass box body (2) and communicates the interior of the second bass box body (2) with an external listening space is arranged on each second bass outlet (6); a middle and high sound box body (9) internally provided with a middle and high sound loudspeaker (10) is arranged in the bar-shaped sound box formed by the first and second low sound box bodies (1, 2);
the number of the middle and high sound loudspeakers (10) in each middle and high sound box body (9) is the same, and the loudspeaker units of the middle and high sound loudspeakers (10) are connected in phase electro-acoustically; two middle and high-sound loudspeakers (10) are installed in each middle and high-sound box body (9), a V-shaped diaphragm is arranged between the vibrating diaphragms of the two middle and high-sound loudspeakers (10) in each middle and high-sound box body (9), and the opening of the V-shaped diaphragm faces the outside of the box body of the bar-shaped sound box.
5. The integrated sound bar of claim 4, wherein: the volume of the first bass box body (1) is larger than or equal to the volume of the second bass box body (2); the middle and high sound box body (9) with the built-in middle and high sound loudspeaker (10) is symmetrically arranged at the two ends of the length direction of the bar-shaped sound box body formed by the first bass box body (1) and the second bass box body (2), and the middle and high sound box body (9) is positioned in the first bass box body (1) and the second bass box body (2) or positioned in the second bass box body (2) at the two ends of the first bass box body (1).
6. The integrated sound bar of any one of claims 1 to 5, wherein: all vibrating diaphragms of the bass loudspeakers (7) vibrate in the same phase in the vibration direction, namely, the vibrating diaphragms vibrate into the first bass box body (1) simultaneously or vibrate into the second bass box body (2) simultaneously; the midrange woofer (10) is in electro-acoustic phase with each of the woofers (7).
7. The integrated sound bar of any one of claims 1 to 5, wherein: the length of the first sound guide pipe (3) is larger than or equal to that of the second sound guide pipe (5), and the sectional area of the first sound guide pipe (3) is larger than or equal to that of the second sound guide pipe (5).
8. The integrated sound bar of any one of claims 1 to 5, wherein: each bass loudspeaker (7) is connected with the low-frequency power output of the audio power amplifier, and each middle and high-frequency loudspeaker (10) is connected with the left and right sound channel full-frequency power output or the single-channel full-frequency power output of the audio power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344327.5A CN106331939B (en) | 2015-06-19 | 2015-06-19 | Integral type bar audio amplifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344327.5A CN106331939B (en) | 2015-06-19 | 2015-06-19 | Integral type bar audio amplifier |
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| CN106331939A CN106331939A (en) | 2017-01-11 |
| CN106331939B true CN106331939B (en) | 2022-09-13 |
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| CN201510344327.5A Active CN106331939B (en) | 2015-06-19 | 2015-06-19 | Integral type bar audio amplifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110557695A (en) * | 2019-09-25 | 2019-12-10 | 广州品笛电子科技有限公司 | Thin household sound box |
| CN111327979B (en) * | 2020-04-01 | 2021-10-26 | 嘉兴市金利达电子股份有限公司 | Double-woofer loudspeaker box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4549631A (en) * | 1983-10-24 | 1985-10-29 | Bose Corporation | Multiple porting loudspeaker systems |
| CN102006531B (en) * | 2010-11-24 | 2013-06-05 | 东莞市达硕科技有限公司 | Sound box structure |
| CN202455518U (en) * | 2012-03-02 | 2012-09-26 | 郑全录 | Bass sound box with dual sound outlets |
| CN203057482U (en) * | 2013-01-23 | 2013-07-10 | 郑全录 | Active double-membrane resonance one-piece voice box 2.1 |
| CN203590421U (en) * | 2013-08-28 | 2014-05-07 | 郑全录 | Dual opposite sound wave fusion sound box |
| CN203554674U (en) * | 2013-10-22 | 2014-04-16 | 广州杰士莱电子有限公司 | Linear array sound box with high quality sound effect |
| CN204697270U (en) * | 2015-06-19 | 2015-10-07 | 深圳纽斯声学系统有限公司 | Integral type bar shaped audio amplifier |
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