CN207070301U - One kind reflection cone and audio amplifier - Google Patents
One kind reflection cone and audio amplifier Download PDFInfo
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- CN207070301U CN207070301U CN201721067658.XU CN201721067658U CN207070301U CN 207070301 U CN207070301 U CN 207070301U CN 201721067658 U CN201721067658 U CN 201721067658U CN 207070301 U CN207070301 U CN 207070301U
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- cone
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- parabolical
- reflection cone
- loudspeaker
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Abstract
The utility model discloses a kind of reflection cone and audio amplifier, it belongs to speaker technology field, the reflecting surface of reflection cone is the curved surface for rotating a circle to obtain around fixed axis by a parabolical part, the excessively parabolical focus of fixed axis is simultaneously vertical with parabolical symmetry axis, and a parabolical part was the part that fixed axis extend with a parabolical intersection point and to the direction away from parabolical summit.Using parabolical characteristic, when sound source is located at parabolical focal point, reflect cone reflecting surface sound wave is reflected after along reflecting surface peripherally and outwardly propagation, the direction of propagation of sound wave is parallel on any one section of reflection cone, hearer's sense of hearing in the range of 360 degree is consistent, and distortion is small, and tonequality is good.Audio amplifier includes above-mentioned reflection cone and loudspeaker, and the sound source of loudspeaker is located at parabolical focal point, and the acoustic aperture that goes out of loudspeaker is bored towards reflection, and echo area will not form standing wave, and distortion is small, and tonequality is good.
Description
Technical field
It the utility model is related to speaker technology field, more particularly to a kind of reflection cone and audio amplifier.
Background technology
With the improvement of living standards, people while music is enjoyed, increasingly pay close attention to the fidelity of tonequality, because
This, the sound box system of high-fidelity is received by more people.Meanwhile people are in idle and rest time, it is desirable to by music come
Loosen body and mind, cultivate one's taste, large-sized audio amplifier equipment space-consuming is big, it is inconvenient to carry, therefore meets small size audition ring
The audio amplifier equipment of border or extreme environment becomes everybody needs, has promoted audio amplifier to miniaturization.
Utility model people has found that traditional audio amplifier is all sent by loudspeaker during the utility model is realized
Sound wave drives air vibration to propagate sound, in use, hearer volume that the position of face loudspeaker hears is larger, tonequality compared with
It is good, deviate the position volume of loudspeaker compared with it is small, tonequality is poor, distortion is big, the acoustics frequency response curve fluctuation of output is very big.
Utility model content
A purpose of the present utility model is to provide a kind of reflection cone, driven with solving sound wave present in prior art
Air vibration come volume caused by propagating sound compared with it is small, tonequality is poor, distortion is big, the acoustics frequency response curve of output fluctuates big skill
Art problem.
Another object of the present utility model is to provide a kind of audio amplifier, to solve raising one's voice for audio amplifier present in prior art
Standing wave, the technical problem of acoustical quality difference are formed between device and reflection cone.
As above conceive, technical scheme is used by the utility model：
One kind reflection cone, the reflecting surface of the reflection cone are to rotate a circle to obtain around fixed axis by a parabolical part
Curved surface, the excessively described parabolical focus of the fixed axis is simultaneously vertical with the parabolical symmetry axis, described parabolical
A part was that the fixed axis prolong with a parabolical intersection point and to the direction away from the parabolical summit
The part stretched.
Wherein, the reflection cone also includes the bottom surface being connected with the reflecting surface, and it is remote that the bottom surface is located at the reflecting surface
From one end of the cone of the reflection cone.
Wherein, it is described reflection cone cone to the vertical range of the bottom surface be 8mm~12mm.
Wherein, it is described reflection cone cone to the vertical range of the bottom surface be 10mm.
A kind of audio amplifier, including：
As above the reflection cone described in any one；
Loudspeaker, the sound source of the loudspeaker are located at the parabolical focal point, and the loudspeaker goes out acoustic aperture direction
The reflection cone.
Wherein, the vertical range between the sound source and the cone of the reflection cone is 8mm~12mm.
Wherein, the vertical range between the sound source and the cone of the reflection cone is 10mm.
Wherein, in addition to housing, the reflection cone and the loudspeaker are respectively positioned in the housing.
Wherein, the loudspeaker is arranged in mounting seat, the mounting seat be located in the housing and with the housing card
Connect.
Wherein, the housing includes the lower house bored the upper shell of connection with the reflection and be connected with the mounting seat,
Multiple senders are provided with the upper shell.
The beneficial effects of the utility model：
The utility model proposes reflection cone, the reflecting surface for reflecting cone is to be rotated by a parabolical part around fixed axis
One week obtained curved surface, the excessively parabolical focus of fixed axis is simultaneously vertical with parabolical symmetry axis, and a parabolical part is
The part for the direction extension that fixed axis are crossed with a parabolical intersection point and to remote parabolical summit.Using parabolical
Characteristic, the light sent from focus are propagated after parabolic reflective each parallel to parabolical symmetry axis, therefore, when sound source is positioned at throwing
During the focal point of thing line, reflect cone reflecting surface sound wave is reflected after along reflecting surface peripherally and outwardly propagation, reflection cone appoint
The direction of propagation of sound wave is parallel on one section of meaning so that hearer's sense of hearing in the range of 360 degree is consistent, and sound wave distortion is small, sound
Matter is good.
The utility model proposes audio amplifier, including above-mentioned reflection cone and loudspeaker, the sound source of loudspeaker is positioned at parabolical
Focal point, the acoustic aperture that goes out of loudspeaker are bored towards reflection.The use of above-mentioned reflection cone so that echo area will not form standing wave, hearer
Sense of hearing is consistent in the range of 360 degree of audio amplifier, and distortion is small, and tonequality is good, and space-consuming is smaller, beneficial to the miniaturization of audio amplifier.
Brief description of the drawings
Fig. 1 is the fundamental diagram of existing reflection cone；
Fig. 2 is the formation basic theory figure one of reflection cone provided by the utility model；
Fig. 3 is the formation basic theory figure two of reflection cone provided by the utility model；
Fig. 4 is the fundamental diagram of reflection cone provided by the utility model；
Fig. 5 is the structural representation of reflection cone provided by the utility model；
Fig. 6 is the internal structure schematic diagram of audio amplifier provided by the utility model；
Fig. 7 is Fig. 6 side view；
Fig. 8 is the part-structure schematic diagram of audio amplifier provided by the utility model；
Fig. 9 is acoustics frequency response curve provided by the utility model.
In figure：
11st, reflector；12nd, acoustical generator；13rd, mounting surface；
21st, reflection cone；211st, reflecting surface；212nd, bottom surface；213rd, parabola；214th, fixed axis；215th, focus；216th, it is right
Claim axle；217th, intersection point；218th, summit；
22nd, loudspeaker；221st, sound source；
23rd, mounting seat；
24th, housing；241st, upper shell；242nd, lower house；243rd, sender.
Embodiment
Below in conjunction with the accompanying drawings the technical solution of the utility model is further illustrated with embodiment.It is understood that this
The specific embodiment of place description is used only for explaining the utility model, rather than to restriction of the present utility model.Further need exist for
Illustrate, for the ease of description, illustrate only the part related to the utility model in accompanying drawing and not all.
The present embodiment provides a kind of reflection cone, and referring to Fig. 2 to Fig. 5, the reflecting surface 211 of reflection cone 21 is by parabola 213
The part curved surface that rotates a circle to obtain around fixed axis 214, fixed axis 214 cross the focus 215 of parabola 213 and with throwing
The symmetry axis 216 of thing line 213 is vertical, and a part for parabola 213 was an intersection point of fixed axis 214 and parabola 213
217 and to away from parabola 213 summit 218 direction extend part.
Using parabolical characteristic, the light sent from focus passes after parabolic reflective each parallel to parabolical symmetry axis
Broadcast, therefore, when sound source is located at the focus 215 of parabola 213, the reflecting surface 211 of reflection cone 21 sound wave is reflected after along anti-
The peripherally and outwardly propagation in face 211 is penetrated, the direction of propagation of sound wave is parallel on any one section of reflection cone 21 so that Ting Zhe
Sense of hearing is consistent in the range of 360 degree, and sound wave distortion is small, and tonequality is good.
Reflection cone 21 also includes the bottom surface 212 being connected with reflecting surface 211, and bottom surface 212 is located at reflecting surface 211 and bored away from reflection
One end of 21 cone, it is solid setting between reflecting surface 211 and bottom surface 212.The cone of reflection cone 21 is to the vertical of bottom surface 212
Distance is 8mm~12mm.In the present embodiment, reflection cone 21 cone to the vertical range of bottom surface 212 be 10mm.Cone and bottom
The distance between face 212 can not excessively closely or too far, and the diameter of excessively near then bottom surface 212 is smaller, what the sound source 221 of loudspeaker 22 was sent
Sound wave can not be reflected by the reflecting surface 211 of reflection cone 21 completely, and then bottom surface 212 is relatively large in diameter too far, takes larger space,
It is unfavorable for realizing that audio amplifier minimizes.
Referring to Fig. 3, the reflecting surface 211 that reflection bores 21 can be the part by two parabola 213 around fixed axis 214
Obtained curved surface is rotated a circle, in the present embodiment, the parabolic equation of two parabolas 213 of use is respectively parabola side
Journey：
And parabolic equation：
Wherein, a show parabolic equation (1) in Fig. 3, and b show parabolic equation (2) in Fig. 3, then fixed axis
214 be Y-axis, and the symmetry axis 216 of parabola 213 is X-axis, and the focus 215 of parabola 213 is (0,0), and fixed axis 214 are with throwing
The intersection point 217 of thing line 213 is (0,10), and the summit 218 of parabolic equation (1) isParabolic equation (2)
Summit is
Above-mentioned reflection cone 21 is realized when sound source is located at the focal point of parabola 213, and the reflecting surface 211 of reflection cone 21 will
Along the peripherally and outwardly propagation of reflecting surface 211 after sound wave reflection, the direction of propagation of sound wave on any one section of reflection cone 21
It is parallel so that hearer's sense of hearing in the range of 360 degree is consistent, and sound wave distortion is small, and tonequality is good.Certainly, in the prior art there is also
One kind reflection cone, its structure is as shown in figure 1, reflector 11 is cone, for reflecting sound wave.No matter acoustical generator 12 is
It is arranged at intervals with the vertex of a cone of reflector 11, or positioned at other positions, the sound wave that acoustical generator 12 is sent passes through the cone of reflector 11
It is random propagation after the reflection of face, on any one section of reflector 11, the direction of propagation of sound wave is not parallel, this
The meeting distortion of sample sound wave, influences tonequality.Reflector 11 is applied in audio amplifier, mounting surface 13 of the acoustic wave segment through acoustical generator 12 is anti-
Penetrate, the echo area between the mounting surface 13 and reflector 11 of acoustical generator 12 will form standing wave, cause acoustics frequency response curve still
Unevenness, high bass effect is bad, influences audio amplifier tonequality.In addition, the design to the structure of reflector 11 at present, typically will be multiple
Different sizes, the reflector 11 of shape carry out acoustical testing, selection preferably reflector 11, not only take, and cost is larger, and
Also it is not reaching to the effect for improving tonequality.
To sum up, the advantages of reflection cone that the present embodiment provides is bored relative to the reflection of prior art is, in the present embodiment
Reflection cone 21 reflecting surface 211 be the curved surface for rotating a circle to obtain around fixed axis 214 by a part for parabola 213, Gu
The focus 215 of parabola 213 excessively of dead axle line 214 is simultaneously vertical with the symmetry axis 216 of parabola 213, and a part for parabola 213 is
Cross an intersection point 217 of fixed axis 214 and parabola 214 and the part extended to the direction on the summit away from parabola 213.
Using parabolical characteristic, the light sent from focus is propagated after parabolic reflective each parallel to parabolical symmetry axis, therefore,
When sound source is located at the focus 215 of parabola 213, the reflecting surface 211 of reflection cone 21 sound wave is reflected after along reflecting surface 211
Peripherally and outwardly propagate, the direction of propagation of sound wave is parallel on any one section of reflection cone 21 so that model of the hearer at 360 degree
It is consistent to enclose interior sense of hearing, sound wave distortion is small, and tonequality is good.
The present embodiment also provides a kind of audio amplifier, referring to Fig. 6 and Fig. 7, including above-mentioned reflection cone 21 and loudspeaker 22, reflection cone
21 sound waves for being used to send loudspeaker 22 reflect, and change the direction of propagation of sound wave.The sound source 221 of loudspeaker 22 is located at parabola
At 213 focus 215, loudspeaker 22 goes out acoustic aperture towards reflection cone 21.
The reflecting surface 211 of reflection cone 21 sound wave is reflected after along reflecting surface 211 peripherally and outwardly propagation, in reflection cone 21
The direction of propagation of sound wave is parallel on any one section, and hearer's sense of hearing in the range of 360 degree of audio amplifier is consistent, and echo area will not shape
Into standing wave, distortion is small, and tonequality is good, and space-consuming is smaller, beneficial to the miniaturization of audio amplifier.Loudspeaker 22 goes out acoustic aperture towards instead
Pencil 21, ensure that the sound wave that loudspeaker 22 is sent all is received by reflection cone 21, improve sound wave utilization rate and propagation efficiency.
Vertical range between the cone of loudspeaker 22 and reflection cone 21 is 8mm~12mm.In the present embodiment, loudspeaker
Vertical range between 22 and the cone of reflection cone 21 is 10mm.Loudspeaker 22 bores the distance between 21 cone with reflection can not
Cross closely or too far, otherwise, the sound wave that the sound source 221 of loudspeaker 22 is sent can not be reflected by the reflecting surface 211 of reflection cone 21 completely.
Referring to Fig. 8, the audio amplifier of the present embodiment also includes housing 24, and reflection cone 21 and loudspeaker 22 are respectively positioned in housing 24.
Loudspeaker 22 is arranged in mounting seat 23, mounting seat 23 be located in housing 24 and with the clamping of housing 24.
Housing 24 includes and reflection 21 upper shells 241 being connected of cone and the lower house 242 being connected with mounting seat 23, upper shell
241 and lower house 242 by clamping or cementing connection, be easily installed and dismantle.Can be in upper shell 241 close to lower house 242
One end multiple card convexs are set, in the correspondence position of lower house 242, multiple necks coordinated with card convex are set.
Multiple senders 243 are provided with upper shell 241.Sender 243 is circumferentially distributed along upper shell 241 so that warp
The sound wave that reflecting surface 211 reflects can blaze abroad along 360 degrees omnidirection.
Referring to Fig. 9, transverse axis represents frequency, and its unit is Hz, and the longitudinal axis represents decibel, and its unit is dB.Curve a is without anti-
The acoustics frequency response curve of the audio amplifier of pencil, curve b are using the acoustics frequency response curve of the audio amplifier of Fig. 1 reflector, and curve c is to adopt
The acoustics frequency response curve for the audio amplifier that the reflection provided with the present embodiment is bored, point A represent standing wave point.
It can be evident that, curve a fluctuations are larger and on a declining curve always after 2KHz.Curve b and curve
A is compared, and after increasing reflector 11, the frequency response curve on 12 off-axis direction of acoustical generator is obviously improved after 2KHz, still
On 4KHz, 5KHz and 8KHz frequency, due to producing standing wave, the out-of-flatness of acoustics frequency response curve is caused.Curve c and curve b phases
Than after reflection cone 21, the frequency response curve on 22 off-axis direction of loudspeaker fluctuates smaller, acoustics frequency response curve after 2KHz
It is more smooth.The standard deviation of different frequent points sensitivity, reflector 11 on frequency response curve by calculating 3.15KHz~16KHz scopes
For：4.43dB, and the reflection of the application cone 21 is：3.30dB, it is seen then that the acoustics frequency response curve of parabolic reflective cone 21 is more
Smoothly, sound is more mellow and fuller in actual sense of hearing.
Embodiment of above simply elaborates general principle and characteristic of the present utility model, and the utility model is not by above-mentioned reality
The mode of applying limits, and on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change and change,
These changes and modifications are both fallen within claimed the scope of the utility model.The utility model requires protection scope is by appended
Claims and its equivalent thereof.
Claims (10)
1. one kind reflection cone, it is characterised in that the reflecting surface (211) of the reflection cone (21) is by one of parabola (213)
Point rotate a circle obtained curved surface, the focus of the excessively described parabola (213) of the fixed axis (214) around fixed axis (214)
(215) and vertical with the symmetry axis (216) of the parabola (213), a part for the parabola (213) was the fixation
One intersection point (217) of axis (214) and the parabola (213) and to the summit (218) away from the parabola (213)
The part of direction extension.
2. reflection cone according to claim 1, it is characterised in that the reflection cone (21) also includes and the reflecting surface
(211) bottom surface (212) of connection, the bottom surface (212) are located at the cone that the reflecting surface (211) bores (21) away from the reflection
One end.
3. reflection cone according to claim 2, it is characterised in that the cone of the reflection cone (21) to the bottom surface
(212) vertical range is 8mm~12mm.
4. reflection cone according to claim 3, it is characterised in that the cone of the reflection cone (21) to the bottom surface
(212) vertical range is 10mm.
A kind of 5. audio amplifier, it is characterised in that including：
Reflection cone (21) as described in claim any one of 1-4；
Loudspeaker (22), the sound source (221) of the loudspeaker (22) is located at focus (215) place of the parabola (213), described
Loudspeaker (22) goes out acoustic aperture towards the reflection cone (21).
6. audio amplifier according to claim 5, it is characterised in that the sound source (221) bores the cone of (21) with the reflection
Between vertical range be 8mm~12mm.
7. audio amplifier according to claim 6, it is characterised in that the sound source (221) bores the cone of (21) with the reflection
Between vertical range be 10mm.
8. audio amplifier according to claim 5, it is characterised in that also (21) and described including housing (24), the reflection cone
Loudspeaker (22) is respectively positioned in the housing (24).
9. audio amplifier according to claim 8, it is characterised in that the loudspeaker (22) is arranged in mounting seat (23), institute
State mounting seat (23) be located in the housing (24) and with the housing (24) clamping.
10. audio amplifier according to claim 9, it is characterised in that the housing (24) is included with the reflection cone (21) even
The upper shell (241) connect and the lower house (242) being connected with the mounting seat (23), it is provided with the upper shell (241) more
Individual sender (243).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721067658.XU CN207070301U (en) | 2017-08-24 | 2017-08-24 | One kind reflection cone and audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721067658.XU CN207070301U (en) | 2017-08-24 | 2017-08-24 | One kind reflection cone and audio amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207070301U true CN207070301U (en) | 2018-03-02 |
Family
ID=61516581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721067658.XU Active CN207070301U (en) | 2017-08-24 | 2017-08-24 | One kind reflection cone and audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207070301U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343243A (en) * | 2017-08-24 | 2017-11-10 | 出门问问信息科技有限公司 | One kind reflection cone and audio amplifier |
| CN110611864A (en) * | 2018-06-15 | 2019-12-24 | 群光电子股份有限公司 | Horn device |
| US10602262B2 (en) | 2018-06-11 | 2020-03-24 | Chicony Electronics Co., Ltd. | Speaker device |
| CN111192565A (en) * | 2019-04-19 | 2020-05-22 | 尼尔森诺尔电气技术(天津)有限公司 | Sound wave reflector for fog whistle |
-
2017
- 2017-08-24 CN CN201721067658.XU patent/CN207070301U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343243A (en) * | 2017-08-24 | 2017-11-10 | 出门问问信息科技有限公司 | One kind reflection cone and audio amplifier |
| US10602262B2 (en) | 2018-06-11 | 2020-03-24 | Chicony Electronics Co., Ltd. | Speaker device |
| TWI734008B (en) * | 2018-06-11 | 2021-07-21 | 群光電子股份有限公司 | Speaker device |
| CN110611864A (en) * | 2018-06-15 | 2019-12-24 | 群光电子股份有限公司 | Horn device |
| CN111192565A (en) * | 2019-04-19 | 2020-05-22 | 尼尔森诺尔电气技术(天津)有限公司 | Sound wave reflector for fog whistle |
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