CN204119424U - Two membrane resonance hamburger audio amplifier - Google Patents
Two membrane resonance hamburger audio amplifier Download PDFInfo
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- CN204119424U CN204119424U CN201420521165.9U CN201420521165U CN204119424U CN 204119424 U CN204119424 U CN 204119424U CN 201420521165 U CN201420521165 U CN 201420521165U CN 204119424 U CN204119424 U CN 204119424U
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Abstract
The utility model relates to the audio amplifier of sound equipment, specifically a kind of two membrane resonance hamburger audio amplifier, comprise casing and lay respectively at loud speaker, the first bass radiator, the second bass radiator of this box house, wherein loud speaker is arranged on the upper tank wall of described casing, described first bass radiator and the second bass radiator are arranged in the casing below this loud speaker, corresponding setting, and the side box wall of the casing relative with described first bass radiator and the second bass radiator has bass outlet sound mouth.The utility model devises two film (front and back passive bass radiator) passive resonance in a single cavity, and the bass outlet sound mouth offered on the side box wall of casing in order to bass acoustic resonance and bass Acoustic Wave Propagation, while expanding bass vibrating diaphragm area exponentially, produced again the symmetry resonance of low-frequency sound wave by two passive passive bass radiators, bass reproduction effect is greatly strengthened.
Description
Technical field
The utility model relates to the audio amplifier of sound equipment, specifically a kind of two membrane resonance hamburger audio amplifier.
Background technology
Recently, along with smart mobile phone, the development of the Internet, the small-size sound box that people put desktop is in great demand, impels small-sized hamburger audio amplifier fast-developing.General existing hamburger its apparent size of audio amplifier is diameter is 50 ~ 80mm, and height is the cylindrical of 60 ~ 90mm, or the square column type that 50 ~ 80mm is wide, 50 ~ 80mm dark, 60 ~ 90mm is high.Existing hamburger audio amplifier a loud speaker and a passive passive bass radiator, because speaker size is little and audio amplifier volume is little, cause such hamburger audio amplifier bass effect bad.
Utility model content
In order to solve the problem of bass effect difference, the purpose of this utility model is to provide a kind of two membrane resonance hamburger audio amplifier.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises casing and lays respectively at the loud speaker of this box house, the first bass radiator, the second bass radiator, wherein loud speaker is arranged on the upper tank wall of described casing, described first bass radiator and the second bass radiator are arranged in the casing below this loud speaker, corresponding setting, and the side box wall of the casing relative with described first bass radiator and the second bass radiator has bass outlet sound mouth.
Wherein: the vibrating diaphragm plane of described first bass radiator and the vibrating diaphragm plane parallel of the second bass radiator, and respectively perpendicular to described upper tank wall; Distance between the vibrating diaphragm plane of described first bass radiator and the vibrating diaphragm plane of the second bass radiator is less than the diameter of loud speaker;
The vibrating diaphragm of described loud speaker is towards the outer setting of casing; The center line of described loud speaker and the centerline collineation in box height direction;
Described casing side box wall extends internally formation two middle tank walls, the end extension downwards respectively that these two described middle tank walls are relative, two extensions that the extension formed and the base of described casing upwards extend to form form the first internal box wall and the second internal box wall, and described first bass radiator and the second bass radiator are arranged on this first internal box wall, the second internal box wall respectively; Described first internal box wall and the second internal box wall and described two middle tank walls are all symmetrical arranged with the center line in described box height direction; Two described middle tank walls are coplanar, and are parallel to upper tank wall and the base of described casing; Described first internal box wall parallels with the second internal box wall, and perpendicular to described middle tank wall, upper tank wall and base;
Described casing is cylinder, the lower side box wall that casing is arranged in below described tank wall has the first bass outlet sound mouth and the second bass outlet sound mouth, this the first bass outlet sound mouth and the second bass outlet sound mouth are symmetrical arranged with the center line in described box height direction, and described first bass outlet sound mouth and the second bass outlet sound mouth are corresponding with the first bass radiator, the second bass radiator respectively;
Described casing is square body, first internal box wall and the second internal box wall are parallel to the side box wall of arbitrary group of two relative casings respectively, and the first bass outlet sound mouth and the second bass outlet sound mouth is had on the described two relative side box walls of this group, this the first bass outlet sound mouth and the second bass outlet sound mouth are symmetrical arranged with the center line in described box height direction, and being arranged in the below of described tank wall, described first bass outlet sound mouth and the second bass outlet sound mouth are corresponding with the first bass radiator, the second bass radiator respectively.
Advantage of the present utility model and good effect are:
1. the utility model devises two film (front and back passive bass radiator) passive resonance in a monophone cavity, and the bass outlet sound mouth offered on the side box wall of casing in order to bass acoustic resonance and bass Acoustic Wave Propagation, while expanding bass vibrating diaphragm area exponentially, produced again the symmetry resonance of low-frequency sound wave by two passive passive bass radiators, bass reproduction effect is greatly strengthened.
2. the utility model physical acoustics design science is novel, and structure is simple, easy to manufacture, with low cost, is convenient to manufacture and produce in enormous quantities, and hamburger audio amplifier using small size loud speaker and small box to make can play out simple and honest, clear, excellent melody.A good sound equipment of can yet be regarded as is innovated.
3. the utility model makes that overall hamburger audio amplifier volume is very little, very light in weight, is suitable for desktop to be put and goes out to carry.
4. the diaphragm of loudspeaker of the present utility model is outwards installed, and the intermediate frequency after electroacoustic is changed and high frequency sound wave are directly radiated listening volume, can obtain good intermediate frequency high frequency playback effect like this.
Accompanying drawing explanation
Figure 1A is the perspective view of the utility model embodiment one;
Figure 1B is the front sectional view of the utility model embodiment one;
Fig. 1 C is the vertical view of Figure 1B;
Fig. 2 A is the perspective view of the utility model embodiment two;
Fig. 2 B is the front sectional view of the utility model embodiment two;
Fig. 2 C is the vertical view of Fig. 2 B;
Wherein: 1 is casing, 2 is loud speaker, and 3 is the first bass radiator, 4 is the second bass radiator, 5 is base, and 6 is the first bass outlet sound mouth, and 7 is the second bass outlet sound mouth, 8 is upper side box wall, 9 is lower side box wall, and 10 is middle tank wall, and 11 is the first internal box wall, 12 is the second internal box wall, and 13 is upper tank wall.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model comprises casing 1 and lays respectively at loud speaker 2, first bass radiator 3, the second bass radiator 4 of this casing 1 inside, wherein loud speaker 2 is arranged on the upper tank wall 13 of casing 1, first bass radiator 3 and the second bass radiator 4 are arranged in the casing 1 below this loud speaker 2, corresponding setting, the side box wall of casing 1 have bass outlet sound mouth.
Embodiment one (casing 1 is cylinder)
As shown in figs. 1 a to 1 c, the casing 1 of the present embodiment is cylinder, has upper tank wall 13, base 5 and side box wall; Casing 1 can manufacture with die sinking injection moulding process, also can with other material as metal material (as aluminium, iron) manufactures, the casing 1 of the present embodiment manufactures with die sinking injection moulding process, first design outward appearance, then the mechanical structure of casing 1 is designed, by the design die sinking completed, then manufacture with injection molding machine; The outside dimension of the present embodiment casing 1 is diameter 60mm, high 70mm.
Loud speaker 2 is fixed on tank wall 13, and vibrating diaphragm is installed towards the outside (namely upward) of casing 1, the center line of loud speaker 2 and the centerline collineation of casing 1 short transverse.The inner surface of the side box wall middle tank wall of formation two 10, two the middle tank walls 10 that extend internally are coplanar and be parallel to tank wall 13 and base 5; Two middle tank walls 10 of the present embodiment are positioned at the middle part of casing 1, and the side box wall of middle tank wall more than 10 is upper side box wall 8, and the side box wall of middle tank wall less than 10 is the below that lower side box wall 9, two middle tank walls 10 are positioned at loud speaker 2.
The end extension downwards respectively that two middle tank walls 10 are relative, forms extension; Position corresponding with middle tank wall 10 extension on the base 5 of casing 1 upwards extends, and defines two extensions; Extension on two middle tank walls 10 and two extensions on base 5 constitute the first internal box wall 11 and the second internal box wall 12.First internal box wall 11 and the second internal box wall 12 and two middle tank walls 10 are all symmetrical arranged with the center line of casing 1 short transverse, and be parallel to each other, shape, size are all identical; First internal box wall 11 of the present embodiment and the second internal box wall 12 are positioned at the centre of casing 1 bottom.First bass radiator 3 and the second bass radiator 4 are arranged on this first internal box wall 11, second internal box wall 12 respectively, contour, corresponding setting.First bass radiator 3 and the second bass radiator 4 are identical bass radiator, and namely first and second bass radiator 3,4 manufactured materials, size and dimension etc. are all identical.So-called bass radiator is also known as passive passive bass radiator, and be again empty loudspeaker, it does not have magnet magnetic circuit and voice coil loudspeaker voice coil, only has vibrating diaphragm, is called for short film.The vibrating diaphragm area sum of first and second bass radiator 3,4 is more than or equal to the vibrating diaphragm area of loud speaker 2.First bass radiator 3 and the second bass radiator 4 shape can be oval, and also can be circular or square, form can be flat; The present embodiment be oval, flat bass radiator, the sealing between bass radiator and casing 1 will be noted during installation.
The vibrating diaphragm plane of the first bass radiator 3 and the vibrating diaphragm plane parallel of the second bass radiator 4, and respectively perpendicular to upper tank wall 13.Distance between the vibrating diaphragm plane of the first bass radiator 3 and the vibrating diaphragm plane of the second bass radiator 4 is less than the diameter of loud speaker 2, distance between the vibrating diaphragm plane of the first bass radiator 3 and the vibrating diaphragm plane of the second bass radiator 4 can be between 10mm ~ 40mm, and the present embodiment is 15mm; The diameter of loud speaker 2 can be 36mm ~ 66mm, and the diameter of the present embodiment loud speaker 2 is 52mm.First and second bass radiator 3,4 is oval dull and stereotyped bass radiators, and the vibrating diaphragm area of each bass radiator is 1100 square millimeters.
The lower side box wall 9 that casing 1 is arranged in below tank wall 10 has the first bass outlet sound mouth 6 and the second bass outlet sound mouth 7, this the first bass outlet sound mouth 6 and the second bass outlet sound mouth 7 are symmetrical arranged with the center line of casing 1 short transverse, and the first bass outlet sound mouth 6 and the second bass outlet sound mouth 7 are corresponding with the first bass radiator 3, second bass radiator 4 respectively.Opening shape, the openings of sizes of the first bass outlet sound mouth 6 and the second bass outlet sound mouth 7 can be determined in conjunction with the design of audio amplifier outward appearance; The shape of the present embodiment first bass outlet sound mouth 6 and the second bass outlet sound mouth 7 is rectangle.
Embodiment two (casing 1 is square body)
As shown in Fig. 2 A ~ 2C, the difference of the present embodiment and embodiment one is: casing 1 is square body, has upper tank wall 13, base 5 and four side box walls.
Loud speaker 2 is fixed on tank wall 13, and vibrating diaphragm is installed towards the outside (namely upward) of casing 1, the center line of loud speaker 2 and the centerline collineation of casing 1 short transverse.The inner surface of arbitrary group two the relative side box walls middle tank wall of formation two 10, two the middle tank walls 10 that extend internally are coplanar and be parallel to tank wall 13 and base 5; Two middle tank walls 10 of the present embodiment are positioned at the middle part of casing 1, and the side box wall of middle tank wall more than 10 is upper side box wall 8, and the side box wall of middle tank wall less than 10 is the below that lower side box wall 9, two middle tank walls 10 are positioned at loud speaker 2.
The end extension downwards respectively that two middle tank walls 10 are relative, forms extension; Position corresponding with middle tank wall 10 extension on the base 5 of casing 1 upwards extends, and defines two extensions; Extension on two middle tank walls 10 and two extensions on base 5 constitute the first internal box wall 11 and the second internal box wall 12.First internal box wall 11 and the second internal box wall 12 and two middle tank walls 10 are all symmetrical arranged with the center line of casing 1 short transverse, and be parallel to each other, shape, size are all identical; First internal box wall 11 and the second internal box wall 12 are parallel to the relative side box wall of two of being provided with middle tank wall 10; First internal box wall 11 of the present embodiment and the second internal box wall 12 are positioned at the centre of casing 1 bottom.First bass radiator 3 and the second bass radiator 4 are arranged on this first internal box wall 11, second internal box wall 12 respectively, contour, corresponding setting.First bass radiator 3 and the second bass radiator 4 are identical bass radiator, and namely first and second bass radiator 3,4 manufactured materials, size and dimension etc. are all identical.So-called bass radiator is also known as passive passive bass radiator, and be again empty loudspeaker, it does not have magnet magnetic circuit and voice coil loudspeaker voice coil, only has vibrating diaphragm, is called for short film.The vibrating diaphragm area sum of first and second bass radiator 3,4 is more than or equal to the vibrating diaphragm area of loud speaker 2.First bass radiator 3 and the second bass radiator 4 shape can be oval, and also can be circular or square, form can be flat; The present embodiment be oval, flat bass radiator, the sealing between bass radiator and casing 1 will be noted during installation.
The vibrating diaphragm plane of the first bass radiator 3 and the vibrating diaphragm plane parallel of the second bass radiator 4, and respectively perpendicular to upper tank wall 13.Distance between the vibrating diaphragm plane of the first bass radiator 3 and the vibrating diaphragm plane of the second bass radiator 4 is less than the diameter of loud speaker 2, distance between the vibrating diaphragm plane of the first bass radiator 3 and the vibrating diaphragm plane of the second bass radiator 4 can be between 10mm ~ 40mm, and the present embodiment is 15mm; The diameter of loud speaker 2 can be 36mm ~ 66mm, and the diameter of the present embodiment loud speaker 2 is 52mm.First and second bass radiator 3,4 is oval dull and stereotyped bass radiators, and the vibrating diaphragm area of each bass radiator is 1100 square millimeters.
The side box wall being extended with two of two middle tank walls 10 relative is parallel to the first internal box wall 11 and the second internal box wall 12 respectively, and this two relative side box wall, be arranged on the lower side box wall 9 below tank wall 10 and have the first bass outlet sound mouth 6 and the second bass outlet sound mouth 7, this the first bass outlet sound mouth 6 and the second bass outlet sound mouth 7 are symmetrical arranged with the center line of casing 1 short transverse, first bass outlet sound mouth 6 is corresponding with the first bass radiator 3, and the second bass outlet sound mouth 7 is corresponding with the second bass radiator 4.Opening shape, the openings of sizes of the first bass outlet sound mouth 6 and the second bass outlet sound mouth 7 can be determined in conjunction with the design of audio amplifier outward appearance; The shape of the present embodiment first bass outlet sound mouth 6 and the second bass outlet sound mouth 7 is rectangle, the line between the first bass outlet sound mouth 6 and the second bass outlet sound mouth 7 and the vertical and intersectant centerline of casing 1 short transverse.
Operation principle of the present utility model is:
When audio power signal puts on loud speaker 2, the diaphragm oscillations of loud speaker 2, realizes electroacoustic conversion and produces sound.When audio frequency low frequency, the diaphragm oscillations amplitude of loud speaker 2 is very large, produces audio frequency low-frequency sound wave air-flow; Audio amplifier is again airtight, and this all-bottom sound air-flow just drives the vibrating diaphragm of the first bass radiator 3 and the diaphragm oscillations of the second bass radiator 4.The direction of vibration of first and second bass radiator 3,4 vibrating diaphragm is contrary, amplitude is identical, i.e. their simultaneously outwards vibrations or simultaneously to internal vibration, two bass radiators of such symmetry just create all-bottom sound resonance, and all producing the vibrating diaphragm area of vibrating diaphragm area+first and second bass radiator 3,4 of the vibrating diaphragm area=loud speaker 2 of bass, the visible vibrating diaphragm area producing bass just considerably increases.And physical acoustics principle shows: vibrating diaphragm area is larger, the bass of generation is stronger, and bass effect is better; Two bass radiators produce again low-frequency sound wave resonance simultaneously, low-frequency sound wave is made again to strengthen further, the result of such double action makes bass reproduction effect obtain subversive lifting, and 2 slight inch loud speakers and little audio amplifier just can produce the bass effect of the large audio amplifier of large scale loud speaker.Simultaneously, the loudspeaker unit vibrating diaphragm of loud speaker 2 is arranged towards audio amplifier space outerpace air, the intermediate frequency high frequency sound wave that electroacoustic conversion produces directly can be radiated listening volume, and small size loudspeaker voice coil is little and quality is light, vibrating diaphragm is thin and light, intermediate frequency high frequency sound characteristics own is all right, hamburger audio amplifier of toy trumpet small box so just can be made to obtain simple and honest plentiful bass and clear bright middle pitch high pitch, thus the perfection achieving hamburger audio amplifier is reset, and improves the problem of hamburger audio amplifier bass reproduction weak effect revolutionaryly.
Of the present utility model pair of membrane resonance hamburger audio amplifier have employed the passive resonance of two films of innovation, and it has a single cavity casing, has installed a loud speaker and two symmetrical passive bass radiators; Such hamburger audio amplifier physical design, just can use hamburger audio amplifier of small diameter loudspeaker (as diameter 40mm ~ 53mm loud speaker), send simple and honest, mellow and full bass and clear loud alt, make slight hamburger audio amplifier send gratifying good sound.
Claims (10)
1. two membrane resonance hamburger audio amplifier, it is characterized in that: comprise casing (1) and lay respectively at the inner loud speaker (2) of this casing (1), first bass radiator (3), second bass radiator (4), wherein loud speaker (2) is arranged on the upper tank wall (13) of described casing (1), described first bass radiator (3) and the second bass radiator (4) are arranged in the casing (1) of this loud speaker (2) below, corresponding setting, the side box wall of the casing (1) relative with described first bass radiator (3) and the second bass radiator (4) has bass outlet sound mouth.
2. by according to claim 1 pair of membrane resonance hamburger audio amplifier, it is characterized in that: the vibrating diaphragm plane of described first bass radiator (3) and the vibrating diaphragm plane parallel of the second bass radiator (4), and respectively perpendicular to described upper tank wall (13).
3., by according to claim 2 pair of membrane resonance hamburger audio amplifier, it is characterized in that: the distance between the vibrating diaphragm plane of described first bass radiator (3) and the vibrating diaphragm plane of the second bass radiator (4) is less than the diameter of loud speaker (2).
4. by according to claim 1 pair of membrane resonance hamburger audio amplifier, it is characterized in that: the vibrating diaphragm of described loud speaker (2) is towards the outer setting of casing (1).
5., by according to claim 4 pair of membrane resonance hamburger audio amplifier, it is characterized in that: the center line of described loud speaker (2) and the centerline collineation of casing (1) short transverse.
6. by the two membrane resonance hamburger audio amplifier described in the arbitrary claim of claim 1 to 5, it is characterized in that: described casing (1) side box wall extends internally formation two middle tank walls (10), the end extension downwards respectively that these two described middle tank walls (10) are relative, two extensions that the extension formed and the base (5) of described casing (1) upwards extend to form form the first internal box wall (11) and the second internal box wall (12), described first bass radiator (3) and the second bass radiator (4) are arranged on this first internal box wall (11) respectively, on second internal box wall (12).
7. by according to claim 6 pair of membrane resonance hamburger audio amplifier, it is characterized in that: described first internal box wall (11) is all symmetrical arranged with the center line of described casing (1) short transverse with the second internal box wall (12) and described two middle tank walls (10).
8., by according to claim 6 pair of membrane resonance hamburger audio amplifier, it is characterized in that: two described middle tank walls (10) are coplanar, and be parallel to upper tank wall (13) and the base (5) of described casing (1); Described first internal box wall (11) parallels with the second internal box wall (12), and perpendicular to described middle tank wall (10), upper tank wall (13) and base (5).
9. by according to claim 6 pair of membrane resonance hamburger audio amplifier, it is characterized in that: described casing (1) is cylinder, casing (1) be arranged in described tank wall (10) below lower side box wall (9) on have the first bass outlet sound mouth (6) and the second bass outlet sound mouth (7), this the first bass outlet sound mouth (6) and the second bass outlet sound mouth (7) are symmetrical arranged with the center line of described casing (1) short transverse, described first bass outlet sound mouth (6) and the second bass outlet sound mouth (7) respectively with the first bass radiator (3), second bass radiator (4) is corresponding.
10. by according to claim 6 pair of membrane resonance hamburger audio amplifier, it is characterized in that: described casing (1) is square body, first internal box wall (11) and the second internal box wall (12) are parallel to the side box wall of arbitrary group of two relative casings (1) respectively, and the first bass outlet sound mouth (6) and the second bass outlet sound mouth (7) is had on the described two relative side box walls of this group, this the first bass outlet sound mouth (6) and the second bass outlet sound mouth (7) are symmetrical arranged with the center line of described casing (1) short transverse, and be arranged in the below of described tank wall (10), described first bass outlet sound mouth (6) and the second bass outlet sound mouth (7) respectively with the first bass radiator (3), second bass radiator (4) is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521165.9U CN204119424U (en) | 2014-09-11 | 2014-09-11 | Two membrane resonance hamburger audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521165.9U CN204119424U (en) | 2014-09-11 | 2014-09-11 | Two membrane resonance hamburger audio amplifier |
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| Publication Number | Publication Date |
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| CN204119424U true CN204119424U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420521165.9U Active CN204119424U (en) | 2014-09-11 | 2014-09-11 | Two membrane resonance hamburger audio amplifier |
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| CN (1) | CN204119424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016138691A1 (en) * | 2015-03-04 | 2016-09-09 | 青岛海信电器股份有限公司 | Speaker box and television |
| CN112954501A (en) * | 2019-12-10 | 2021-06-11 | 苹果公司 | Loudspeaker assembly |
-
2014
- 2014-09-11 CN CN201420521165.9U patent/CN204119424U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016138691A1 (en) * | 2015-03-04 | 2016-09-09 | 青岛海信电器股份有限公司 | Speaker box and television |
| CN112954501A (en) * | 2019-12-10 | 2021-06-11 | 苹果公司 | Loudspeaker assembly |
| US11950036B2 (en) | 2019-12-10 | 2024-04-02 | Apple Inc. | Speaker assembly |
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