CN204180253U - The two membrane resonance audio amplifier of two ends formula - Google Patents
The two membrane resonance audio amplifier of two ends formula Download PDFInfo
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- CN204180253U CN204180253U CN201420646870.1U CN201420646870U CN204180253U CN 204180253 U CN204180253 U CN 204180253U CN 201420646870 U CN201420646870 U CN 201420646870U CN 204180253 U CN204180253 U CN 204180253U
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- bass
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- tank wall
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Abstract
The utility model relates to the audio amplifier of sound equipment, the specifically two membrane resonance audio amplifier of a kind of two ends formula, the end face that two set of speakers are arranged on two ends, casing left and right is respectively symmetrical arranged, two bass radiators are arranged on the tank wall of the casing between two set of speakers respectively, and two bass radiators are mutually corresponding; The part of installing the tank wall of arbitrary bass radiator to casing sunken inside, form internal box wall, or install two bass radiators tank wall part all to casing sunken inside, form internal box wall, be interior side box wall between internal box wall and the part of tank wall do not caved in.The medium-high frequency sound wave of the utility model loud speaker is directly radiated space by tank ends, and the passive bass radiator symmetric vibration of all-bottom sound air stream drives two, owing to increasing bass vibrating diaphragm area exponentially, and produce low-frequency resonance, resonance makes low-frequency sound wave amplitude rise to, little loud speaker and little audio amplifier just can obtain gratifying bass effect, and whole audio amplifier volume also reduces greatly.
Description
Technical field
The utility model relates to the audio amplifier of sound equipment, specifically the two membrane resonance audio amplifier of a kind of two ends formula.
Background technology
In recent years, along with the development of the Internet and smart mobile phone, people require more and more higher to the broadcasting tonequality of sound equipment, and require that volume and weight is more and more less.In Fujian science tech publishing house in " loud speaker and the audio amplifier design manual " published in July, 2008, disclose closed audio amplifier (60 ~ 67 pages), open type audio amplifier (67 ~ 77 pages), passive radiation audio amplifier (77 ~ 78 pages); The audio amplifier of these public technologies, or be that volume is too large, or bass reproduction poor effect.The desirable portable sound box of result of broadcast, desktop speaker can not be done with little loud speaker and little audio amplifier.
Utility model content
In order to solve the problem of existing audio amplifier bass reproduction weak effect, the purpose of this utility model is to provide a kind of two ends formula two membrane resonance audio amplifier.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises casing and lays respectively at two set of speakers in described casing, two bass radiators, wherein two set of speakers be arranged on two ends, described casing left and right respectively end face on and be symmetrical arranged, described two bass radiators are arranged on the tank wall of the casing between two set of speakers respectively, and two bass radiators are mutually corresponding; The part of the tank wall of arbitrary described bass radiator is installed to casing sunken inside, formation internal box wall, or install described two bass radiators tank wall part all to casing sunken inside, form internal box wall, be interior side box wall between described internal box wall and the part of tank wall do not caved in; Distance between described two bass radiators is less than the diameter of each loudspeaker unit in arbitrary set of speakers.
Wherein: described casing is divided into separate left box body and right case by cutting off tank wall, in this left box body and right case, a set of speakers and two bass radiators are respectively installed, set of speakers in described left box body and right case is arranged on the end face of outer end, described two bass radiator one end in left box body and right case are arranged on the tank wall of left box body or right case the inner, and the other end is arranged on described partition tank wall; Described partition tank wall is positioned at the centre of casing, and described casing is divided into identical left box body and right case, described left box body and right case with this partition tank wall for symmetry;
The vibrating diaphragm of described two set of speakers is towards the opposite, all towards the outer setting of casing, and the vibrating diaphragm plane parallel of described two set of speakers, the vibrating diaphragm plane parallel of described two bass radiators and perpendicular to the vibrating diaphragm plane of two set of speakers; The part of installing the tank wall of described two bass radiators parallels or is obliquely installed; Vibrating diaphragm area, the shape of described two bass radiators are all identical; Described two set of speakers are identical, and for electroacoustic is with being connected; Loudspeaker unit in described two set of speakers is identical loud speaker, and quantity is identical, and each loudspeaker unit in each set of speakers is electroacoustic with being connected; Described casing is cuboid or cylinder, and in the casing of cuboid, described two set of speakers are arranged on the end face at left and right two ends respectively, and described two bass radiators are arranged on corresponding forward and backward tank wall respectively; In cylindrical casing, described two set of speakers are arranged on two end faces in left and right respectively, and the part of installing the tank wall of described two bass radiator casings is the plane formed after depression; Described casing is symmetrical with the center line of its Width.
Advantage of the present utility model and good effect are:
1. the utility model have employed two film (first and second bass radiator) passive resonance, while the area expanding bass vibrating diaphragm exponentially, by the resonance of all-bottom sound air-flow, bass reproduction effect is greatly strengthened.
2. the utility model makes whole audio amplifier volume reduce widely, and weight alleviates widely, with small diameter loudspeaker and very little audio amplifier, just can obtain gratifying playback effect, can easily for portable loudspeaker box, desktop speaker etc.
3. two set of speakers of the present utility model are installed on tank ends respectively, not from sounding before casing, can be positioned in the protective sleeve support of the panel computers such as iPad easily, thus form one with the panel computer such as iPad.
4. the utility model loudspeaker medium high frequency frequency sound wave is directly radiated airspace, and the play quality of intermediate frequency high frequency is guaranteed.
5. audio amplifier physical acoustics design science of the present utility model, rational in infrastructure, is convenient to manufacture, and cost reduces.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment two;
Fig. 4 is the end view of Fig. 3;
Fig. 5 is the structural representation of the utility model embodiment three;
Fig. 6 is the end view of a kind of shape of Fig. 5;
Fig. 7 is the end view of the another kind of shape of Fig. 5;
Fig. 8 is the structural representation of the utility model embodiment four;
Fig. 9 is the end view of a kind of shape of Fig. 8;
Figure 10 is the end view of the another kind of shape of Fig. 8;
Wherein: 1 is casing, 2 is tank wall, and 3 is the first set of speakers, and 4 is the second set of speakers, 5 is the first bass radiator, and 6 is the second bass radiator, and 7 is right-hand member tank wall, 8 is left end tank wall, and 9 is the first internal box wall, and 10 is side box wall in first, 11 for cutting off tank wall, and 12 is left box body, and 13 is right case, 14 is left first bass radiator, and 15 is right first bass radiator, and 16 is left second bass radiator, 17 is right second bass radiator, and 18 is the second internal box wall, and 19 is side box wall in second.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Formula two membrane resonance audio amplifier in two ends of the present utility model comprises casing 1 and lays respectively at two set of speakers in casing 1, two bass radiators, wherein two set of speakers be arranged on casing about 1 two ends respectively end face on and be symmetrical arranged, two bass radiators are arranged on the tank wall 2 of the casing 1 between two set of speakers respectively, and two bass radiators are mutually corresponding.The part of the tank wall 2 of arbitrary bass radiator is installed to casing 1 sunken inside, formation internal box wall, or install two bass radiators tank wall 2 part all to casing 1 sunken inside, form internal box wall, be interior side box wall between internal box wall and the part of tank wall 2 do not caved in; Distance between two bass radiators is less than the diameter of each loudspeaker unit in arbitrary set of speakers.
Casing 1 is divided into separate left box body 12 and right case 13 by cutting off tank wall 11, in this left box body 12 and right case 13, a set of speakers and two bass radiators are respectively installed, set of speakers in left box body 12 and right case 13 is arranged on the end face of outer end, two bass radiator one end in left box body 12 and right case 13 are arranged on the tank wall of left box body 12 or right case 13 the inner, and the other end is arranged on and cuts off on tank wall 11.
Embodiment one
As shown in Figure 1 and Figure 2, the casing 1 of the present embodiment is cuboid, symmetrical with the center line of casing 1 Width; Casing 1 can manufacture with die sinking injection moulding process, also can with other material as manufactures such as metal material (as aluminium, iron), timber or plastic plates; The casing 1 of the present embodiment adopts the manufacture of die sinking injection moulding process, first carries out industrial design to casing 1, carries out die sinking, then manufacture with injection molding machine after appearance design is good.
First set of speakers 3 of the present embodiment is arranged on the right-hand member tank wall 7 of casing 1 one end, and the vibrating diaphragm of the first set of speakers 3 is towards the outer setting of casing 1; Second set of speakers 4 is arranged on the left end tank wall 8 of casing 1 other end, and the vibrating diaphragm of the second set of speakers 4 is also towards the outer setting of casing 1, and namely first and second set of speakers 3,4 is arranged on the end face at casing about 1 two ends respectively symmetrically.First bass radiator 5 is arranged on the rear box wall of casing 1, second bass radiator 6 is arranged on the front tank wall of casing 1, this front tank wall installed the inner recess of part to casing 1 of the second bass radiator 6, formed between the two ends, left and right of the first internal box wall 9, first internal box wall 9 and the non-sunk part of front tank wall and be respectively side box wall 10 in first.The part that first internal box wall 9 of the present embodiment does not cave in rear box wall and the front tank wall of casing 1 parallels, the first internal box wall 9 both sides first in side box wall 10 parallel, and perpendicular to the first internal box wall 9 and rear box wall, and parallel with right-hand member tank wall 7 and left end tank wall 8.
First bass radiator 5 and the second bass radiator 6 contour, and mutually corresponding.First bass radiator 5 is substantially identical bass radiator with the second bass radiator 6, and namely first and second bass radiator 5,6 manufactured materials, size and dimension etc. are roughly the same; So-called bass radiator is again empty loudspeaker, and be passive, it does not have magnet magnetic circuit and voice coil loudspeaker voice coil, only has vibrating diaphragm and bracing or strutting arrangement thereof, is called for short film.The vibrating diaphragm area sum of first and second bass radiator 5,6 is equal to or greater than the vibrating diaphragm area sum of all loudspeaker units in the first set of speakers 2 and the second set of speakers 3; The vibrating diaphragm area of first and second bass radiator 5,6 of the present embodiment and be 3300mm
2.First bass radiator 5 and the second bass radiator 6 can be oval, also can be circular or rectangle; Form can be dull and stereotyped, also can be tapered; The present embodiment be elliptical plate formula bass radiator, the sealing between bass radiator and casing 1 will be noted during installation.
The vibrating diaphragm plane parallel (also can tilt) of the first bass radiator 5 and the second bass radiator 6, and the distance between the vibrating diaphragm of the vibrating diaphragm of the first bass radiator 5 and the second bass radiator 6 is less than the diameter of each single loudspeaker unit in the first set of speakers 3 and the second set of speakers 4, distance between the vibrating diaphragm of the first bass radiator 5 and the vibrating diaphragm of the second bass radiator 6 can be 10mm ~ 30mm, and the present embodiment is 20mm.
First set of speakers 3 and the second set of speakers 4 are identical set of speakers, and each set of speakers can be made up of one ~ tetra-loudspeaker unit, by the outside of all loudspeaker unit vibrating diaphragms towards casing 1, and must note sealing during installation.Each loudspeaker unit is of a size of diameter 30mm ~ 133mm, and first set of speakers 3 of the present embodiment and the second set of speakers 4 form by a loudspeaker unit, and it is of a size of the circular loudspeakers of diameter 45mm.When forming the first set of speakers 3 and the second set of speakers 4 with many loudspeaker units, in each group, all loudspeaker units are electroacoustic with being connected; Meanwhile, the first set of speakers 3 and the second set of speakers 4 also must be connected together by electroacoustic, and can connect L channel by stereo requirement set of speakers, another set of speakers connects R channel.The vibrating diaphragm plane parallel of first and second set of speakers 3,4, and perpendicular to the vibrating diaphragm plane of first and second bass radiator 5,6.
Embodiment two
As shown in Figure 3, Figure 4, the present embodiment is with the difference of embodiment one: casing 1 is divided into two identical and separately independently cavity, i.e. left box body 12 and right cases 13, is middlely connected by partition tank wall 11 and is completed the isolation of left and right casing 12,13; Simultaneously, first bass radiator 5 and the second bass radiator 6 are separated into two identical bass radiators separately, namely the first bass radiator 5 is cut off that tank wall 11 is separated into left first bass radiator 14, right first bass radiator 15, second bass radiator 6 is cut off tank wall 11 and is separated into left second bass radiator 16, right second bass radiator 17.Cut off the centre that tank wall 11 is positioned at casing 1, left box body 12 and right case 13 are symmetrical with this partition tank wall 11.The right-hand member tank wall 7 of the outer end of right case 13 is installed the first set of speakers 3, right first bass radiator 15 and right second bass radiator 17 are positioned at the inner of right case 13, and the two ends of right first bass radiator 15 and right second bass radiator 17 are arranged on right case 13 respectively and cut off the side of tank wall 11.The left end tank wall 8 of the outer end of left box body 12 is installed the second set of speakers 4, left first bass radiator 14 and left second bass radiator 16 are positioned at the inner of left box body 12, and the two ends of left first bass radiator 14 and left second bass radiator 16 are arranged on left box body 12 respectively and cut off the opposite side of tank wall 11.
Embodiment three
As shown in Figure 5, Figure 6, the difference of the present embodiment and embodiment one is: the first bass radiator 5 is arranged on the rear box wall of casing 1, second bass radiator 6 is arranged on the front tank wall of casing 1, rear box wall installed the inner recess of part to casing 1 of the first bass radiator 5, formed between the two ends, left and right of the second internal box wall 18, second internal box wall 18 and the non-sunk part of rear box wall and be respectively side box wall 19 in second; Front tank wall installed the inner recess of part to casing 1 of the second bass radiator 6, formed between the two ends, left and right of the first internal box wall 9, first internal box wall 9 and the non-sunk part of front tank wall and be respectively side box wall 10 in first.The part that first internal box wall 9, second internal box wall 18 of the present embodiment and forward and backward tank wall do not cave in is parallel to each other.First internal box wall 9 both sides first in side box wall 10 parallel, and perpendicular to the first internal box wall 9; Second internal box wall 18 both sides second in side box wall 19 parallel, and perpendicular to the second internal box wall 18; In first and second, side box wall 10,19 is parallel with right-hand member tank wall 7 and left end tank wall 8.First bass radiator 5 and the second bass radiator 6 with the center line of casing 1 length direction for symmetry.
As shown in Figure 7, the casing 1 of the present embodiment also can be cylinder, and size can be diameter 60mm, long 215mm, symmetrical with the center line of casing 1 radial direction; .First and second set of speakers 3,4 is arranged on right side and the left side of the casing 1 of cylindrical shape respectively, the tank wall 2 of casing 1 is cambered surface, the part of installing first and second bass radiator 5,6 is plane, and the part of installation the second bass radiator 6 is radially to the inner recess of casing 1, form the first internal box wall 9, the part of installing the first bass radiator 5, radially to the inner recess of casing 1, forms the second internal box wall 18.Form side box wall 10 in first between the part that the two ends of the first internal box wall 9 and front tank wall do not cave in, both sides first in side box wall 10 parallel, and respectively perpendicular to the first internal box wall 9; Form side box wall 19 in second between the part that the two ends of the second internal box wall 18 and rear box wall do not cave in, both sides second in side box wall 19 parallel, and respectively perpendicular to the second internal box wall 18.First bass radiator 5 and the second bass radiator 6 contour, and mutually corresponding, with the longitudinal center line of casing 1 for symmetry, the vibrating diaphragm plane parallel (also can tilt) of the first bass radiator 5 and the second bass radiator 6.
Embodiment four
As shown in Figure 8, Figure 9, the present embodiment is with the difference of embodiment three: casing 1 is divided into two identical and separately independently cavity, i.e. left box body 12 and right cases 13, is middlely connected by partition tank wall 11 and is completed the isolation of left and right casing 12,13; Simultaneously, first bass radiator 5 and the second bass radiator 6 are separated into two identical bass radiators separately, namely the first bass radiator 5 is cut off that tank wall 11 is separated into left first bass radiator 14, right first bass radiator 15, second bass radiator 6 is cut off tank wall 11 and is separated into left second bass radiator 16, right second bass radiator 17.Cut off the centre that tank wall 11 is positioned at casing 1, left box body 12 and right case 13 are symmetrical with this partition tank wall 11.The right-hand member tank wall 7 of the outer end of right case 13 is installed the first set of speakers 3, right first bass radiator 15 and right second bass radiator 17 are positioned at the inner of right case 13, and the two ends of right first bass radiator 15 and right second bass radiator 17 are arranged on right case 13 respectively and cut off the side of tank wall 11.The left end tank wall 8 of the outer end of left box body 12 is installed the second set of speakers 4, left first bass radiator 14 and left second bass radiator 16 are positioned at the inner of left box body 12, and the two ends of left first bass radiator 14 and left second bass radiator 16 are arranged on left box body 12 respectively and cut off the opposite side of tank wall 11.
As shown in Figure 10, the casing 1 of the present embodiment also can be cylinder, and size can be diameter 60mm, long 215mm.The first set of speakers 3 in right case 13 and the second set of speakers 4 in left box body 12 are arranged on right side and the left side of the casing 1 of cylindrical shape respectively, the tank wall 2 of casing 1 is cambered surface, left first bass radiator 14 is installed, the part (the second internal box wall 18) of right first bass radiator 15 is plane, left second bass radiator 16 is installed, the part (the first internal box wall 9) of right second bass radiator 17 is also plane, and left second bass radiator 16 is installed, the part of right second bass radiator 17 is radially to the inner recess of casing 1, form the first internal box wall 9, side box wall 10 in first is formed between the two ends of this first internal box wall 9 and the part do not caved in, both sides first in side box wall 10 parallel, and respectively perpendicular to the first internal box wall 9, install left first bass radiator 14, right first bass radiator 15 part radially to the inner recess of casing 1, form the second internal box wall 18, side box wall 19 in second is formed between the two ends of this second internal box wall 18 and the part do not caved in, both sides second in side box wall 19 parallel, and respectively perpendicular to the second internal box wall 18.Left first bass radiator 14 is contour and mutually corresponding with left second bass radiator 16; Right first bass radiator 15 is contour and mutually corresponding with right second bass radiator 17.The vibrating diaphragm co-planar of left first bass radiator 14 and right first bass radiator 15, the vibrating diaphragm co-planar of left second bass radiator 16 and right second bass radiator 17, and with the vibrating diaphragm plane parallel (also can tilt) of left first bass radiator 14 with right first bass radiator 15.
Casing 1 of the present utility model also can be made into the strip casing that end face is regular polygon.
Operation principle of the present utility model is:
When audio power signal puts on the first set of speakers 3 and the second set of speakers 4, the loudspeaker unit diaphragm oscillations in two set of speakers, realizes electroacoustic conversion and produces sound.When audio frequency low frequency, loudspeaker unit vibrating diaphragm amplitude is very large, audio amplifier is again airtight, all-bottom sound air-flow just drives the first bass radiator 5 and the second bass radiator 6 to vibrate, and these two bass radiator direction of vibration are contrary, amplitude is equal, i.e. their simultaneously outwards vibrations or simultaneously to internal vibration, bass vibrating diaphragm area=the first set of speakers 3 whole like this and the loudspeaker unit vibrating diaphragm area sum+the first of the second set of speakers 4, two bass radiators 5, the vibrating diaphragm area sum of 6, bass vibrating diaphragm area total like this considerably increases, bass effect is enhanced, simultaneously first, two bass radiators 5, 6 interact again, produce symmetrical resonance, bass is made again to strengthen further, such double action just makes bass reproduction effect greatly be strengthened.Simultaneously, the loudspeaker unit vibrating diaphragm of the first set of speakers 3 and the second set of speakers 4 is all towards airspace, intermediate frequency high frequency sound wave directly can be radiated airspace again, little audio amplifier so just can be made to obtain the bass of plentiful shock, with clear thorough alt, thus the perfection achieving full acoustic frequency frequency range is reset.
Formula two membrane resonance audio amplifier in two ends of the present utility model have employed the two passive resonance of film of two ends formula of innovation, has installed two bass radiators in correspondence with each other and two set of speakers.Physical acoustics novel structure, structure is simple, easy to manufacture, with low cost, makes small box audio amplifier just can play out simple and honest, music clearly.The utility model can be advantageously applied to the Flat computer support frame protective sleeve audio amplifiers etc. such as portable sound box, desktop speaker, iPad.
Claims (10)
1. the two membrane resonance audio amplifier of two ends formula, it is characterized in that: comprise casing (1) and lay respectively at two set of speakers in described casing (1), two bass radiators, wherein two set of speakers be arranged on described casing (1) two ends, left and right respectively end face on and be symmetrical arranged, described two bass radiators are arranged on the tank wall (2) of the casing (1) between two set of speakers respectively, and two bass radiators are mutually corresponding; The part of the tank wall (2) of arbitrary described bass radiator is installed to casing (1) sunken inside, formation internal box wall, or install described two bass radiators tank wall (2) part all to casing (1) sunken inside, form internal box wall, be interior side box wall between described internal box wall with the part of tank wall (2) do not caved in; Distance between described two bass radiators is less than the diameter of each loudspeaker unit in arbitrary set of speakers.
2. by the two membrane resonance audio amplifier of two ends according to claim 1 formula, it is characterized in that: described casing (1) is divided into separate left box body (12) and right case (13) by cutting off tank wall (11), in this left box body (12) and right case (13), a set of speakers and two bass radiators are respectively installed, set of speakers in described left box body (12) and right case (13) is arranged on the end face of outer end, described two bass radiator one end in left box body (12) and right case (13) are arranged on left box body (12) or the inner tank wall of right case (13), the other end is arranged on described partition tank wall (11).
3. by the two membrane resonance audio amplifier of two ends according to claim 2 formula, it is characterized in that: described partition tank wall (11) is positioned at the centre of casing (1), described casing (1) is divided into identical left box body (12) and right case (13), described left box body (12) and right case (13) are symmetrical with this partition tank wall (11).
4. by the two membrane resonance audio amplifier of the two ends formula described in claim 1 or 2, it is characterized in that: the vibrating diaphragm of described two set of speakers is towards the opposite, all towards the outer setting of casing (1), the vibrating diaphragm plane parallel of described two set of speakers, the vibrating diaphragm plane parallel of described two bass radiators and perpendicular to the vibrating diaphragm plane of two set of speakers.
5., by the two membrane resonance audio amplifier of the two ends formula described in claim 1 or 2, it is characterized in that: the part of installing the tank wall (2) of described two bass radiators parallels or is obliquely installed.
6., by the two membrane resonance audio amplifier of the two ends formula described in claim 1 or 2, it is characterized in that: vibrating diaphragm area, the shape of described two bass radiators are all identical.
7., by the two membrane resonance audio amplifier of the two ends formula described in claim 1 or 2, it is characterized in that: described two set of speakers are identical, and for electroacoustic is with being connected.
8. by the two membrane resonance audio amplifier of the two ends formula described in claim 1 or 2, it is characterized in that: the loudspeaker unit in described two set of speakers is identical loud speaker, and quantity is identical, and each loudspeaker unit in each set of speakers is electroacoustic with being connected.
9. by the two membrane resonance audio amplifier of the two ends formula described in claim 1 or 2, it is characterized in that: described casing (1) is cuboid or cylinder, in the casing (1) of cuboid, described two set of speakers are arranged on the end face at left and right two ends respectively, and described two bass radiators are arranged on corresponding forward and backward tank wall respectively; In cylindrical casing (1), described two set of speakers are arranged on two end faces in left and right respectively, and the part of installing the tank wall (2) of described two bass radiator casings (1) is the plane formed after depression.
10., by the two membrane resonance audio amplifier of the two ends formula described in claim 1 or 2, it is characterized in that: described casing (1) is symmetrical with the center line of its Width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646870.1U CN204180253U (en) | 2014-10-31 | 2014-10-31 | The two membrane resonance audio amplifier of two ends formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646870.1U CN204180253U (en) | 2014-10-31 | 2014-10-31 | The two membrane resonance audio amplifier of two ends formula |
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| Publication Number | Publication Date |
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| CN204180253U true CN204180253U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420646870.1U Withdrawn - After Issue CN204180253U (en) | 2014-10-31 | 2014-10-31 | The two membrane resonance audio amplifier of two ends formula |
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| CN (1) | CN204180253U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994447A (en) * | 2015-07-02 | 2015-10-21 | 北京超质感科技有限公司 | Multimedia speaker with LED (Light Emitting Diode) lighting cosmetic mirror |
| CN105635892A (en) * | 2014-10-31 | 2016-06-01 | 深圳纽斯声学系统有限公司 | Two-end-type double-diaphragm resonance sound box |
| CN110602600A (en) * | 2019-09-04 | 2019-12-20 | 赛因博客网络技术(北京)有限公司 | Sound box and manufacturing method thereof |
| CN111373764A (en) * | 2017-11-29 | 2020-07-03 | 哈曼贝克自动系统制造有限责任公司 | Loudspeaker device |
-
2014
- 2014-10-31 CN CN201420646870.1U patent/CN204180253U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105635892A (en) * | 2014-10-31 | 2016-06-01 | 深圳纽斯声学系统有限公司 | Two-end-type double-diaphragm resonance sound box |
| CN105635892B (en) * | 2014-10-31 | 2018-10-02 | 深圳纽斯声学系统有限公司 | A kind of double membrane resonance speakers of both ends formula |
| CN104994447A (en) * | 2015-07-02 | 2015-10-21 | 北京超质感科技有限公司 | Multimedia speaker with LED (Light Emitting Diode) lighting cosmetic mirror |
| CN111373764A (en) * | 2017-11-29 | 2020-07-03 | 哈曼贝克自动系统制造有限责任公司 | Loudspeaker device |
| CN111373764B (en) * | 2017-11-29 | 2022-06-14 | 哈曼贝克自动系统制造有限责任公司 | Loudspeaker device |
| CN110602600A (en) * | 2019-09-04 | 2019-12-20 | 赛因博客网络技术(北京)有限公司 | Sound box and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150225 Effective date of abandoning: 20181002 |
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| AV01 | Patent right actively abandoned |