CN106454170A - Method of designing labyrinth type sound box, and flat television - Google Patents
Method of designing labyrinth type sound box, and flat television Download PDFInfo
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- CN106454170A CN106454170A CN201611050374.XA CN201611050374A CN106454170A CN 106454170 A CN106454170 A CN 106454170A CN 201611050374 A CN201611050374 A CN 201611050374A CN 106454170 A CN106454170 A CN 106454170A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 235000008434 ginseng Nutrition 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011358 absorbing material Substances 0.000 claims 1
- 238000012938 design process Methods 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004364 calculation method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
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- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012814 acoustic material Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The embodiment of the invention provides a method of designing a labyrinth type sound box. In the method of designing a labyrinth type sound box, the length of a transmission line type sound pipeline is determined through common calculation of the size parameter of a flat television and the resonant frequency of loudspeakers. The method of designing a labyrinth type sound box is applied to a flat television, and can effectively improve the low frequency response effect of the flat television so as to provide a relatively shocked audition environment for a user and improve the auditory experience of the user, while the system cost is not improved and the thickness and the volume of the flat television are not increased.
Description
Technical field
The present invention relates to Audiotechnica field, in particular to a kind of method for designing of labyrinth type audio amplifier and flat board electricity
Depending on.
Background technology
Flat panel TV small volume, thickness of thin, the overall volume of its loudspeaker being adopted and the sound pelvic surface of sacrum of loudspeaker amass
All unsuitable excessive, so cause the narrower phenomenon of flat panel TV generally existing low frequency frequency response.At present it is desirable in thin flat TV
Inside make the preferable audio amplifier of low frequency frequency response, can only be by adding auxiliary bass or subwoofer unit, again can be significantly but such
Increase system cost, and low frequency performance lifting is also extremely limited.So, how to design and be applied to having of thin flat TV
The audio amplifier of preferably low frequency frequency response effect is current industry problem demanding prompt solution.
Content of the invention
In view of this, it is an object of the invention to provide a kind of method for designing of labyrinth type audio amplifier and flat panel TV, to change
Kind the problems referred to above.
The embodiment of the present invention provides a kind of method for designing of labyrinth type audio amplifier, is applied to flat panel TV, the method includes：
Obtain the dimensional parameters of described flat panel TV and the resonant frequency of the loudspeaker of labyrinth type audio amplifier, wherein, described chi
Very little parameter includes at least one of the length of flat panel TV, width, three parameters of height in hand；
According to described dimensional parameters and resonant frequency, determine the transmission wire type sound pipe road being implemented in described labyrinth type audio amplifier
Length.
Another embodiment of the present invention provides a kind of flat panel TV, is arranged within described flat panel TV including at least one
Labyrinth type audio amplifier, wherein：Described labyrinth type audio amplifier includes case body, is arranged at the low frequency loudspeaker of described case first body side wall
Device, it is arranged at the radiating aperture of described case second body side wall and is implemented in the transmission wire type sound pipe road of described case body interior,
The one end in described transmission wire type sound pipe road is connected with the sound basin sealing of described loudspeaker, and the other end extends to described radiating aperture, its
In, the length in this transmission wire type sound pipe road calculates according to method as above and determines.
In the method for designing of labyrinth type audio amplifier provided in an embodiment of the present invention, the length in transmission wire type sound pipe road is according to flat board
The resonant frequency of the dimensional parameters of TV and loudspeaker calculates determination jointly.The method for designing of this kind of labyrinth type audio amplifier is applied to
Flat panel TV, can in not lift system cost, do not increase flat panel TV thickness and volume in the case of, be effectively improved flat board electricity
Depending on low frequency frequency response effect, be the acoustic surrounding that user builds more shock, lift user's audio experience.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of method for designing flow process of labyrinth type audio amplifier being applied in flat panel TV provided in an embodiment of the present invention
Figure；
Fig. 2 is the length determining method stream transmitting wire type sound pipe road in a kind of labyrinth type audio amplifier provided in an embodiment of the present invention
Cheng Tu；
Fig. 3 is the dimensional parameters schematic diagram of certain 65 cun of flat panel TV of money provided in an embodiment of the present invention；
Fig. 4 is the frequency response curve schematic diagram of selected loudspeaker in the flat panel TV shown in Fig. 3；
Fig. 5 be selected loudspeaker in the flat panel TV shown in Fig. 3 impedance curve schematic diagram；
Fig. 6 A is the enforcement installing labyrinth type audio amplifier in a kind of flat panel TV shown in Fig. 3 provided in an embodiment of the present invention
Design drawing；
Fig. 6 B is the front view of the labyrinth type audio amplifier shown in Fig. 6 A；
Fig. 7 shows the frequency response curve of the flat panel TV shown in Fig. 6 A；
Fig. 8 shows the frequency response curve of the flat panel TV of the traditional phase inverted cabinet of application；
Fig. 9 is a kind of planar structure schematic diagram of labyrinth type audio amplifier provided in an embodiment of the present invention；
Figure 10 A is the planar structure schematic diagram of another kind of labyrinth type audio amplifier；
Figure 10 B is the planar structure schematic diagram of another kind of labyrinth type audio amplifier；
Figure 10 C is the planar structure schematic diagram of another kind of labyrinth type audio amplifier；
Figure 10 D is the planar structure schematic diagram of another kind of labyrinth type audio amplifier；
Figure 11 is a kind of planar structure schematic diagram of flat panel TV provided in an embodiment of the present invention；
Figure 12 is the application scenarios schematic diagram of the flat panel TV shown in a kind of Figure 11 provided in an embodiment of the present invention；
Figure 13 is the planar structure schematic diagram of another kind flat panel TV provided in an embodiment of the present invention.
Icon：100- labyrinth type audio amplifier；102- case body；104- full frequency speaker；106- transmits wire type sound pipe road；
1062- radiating aperture；200- flat panel TV.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Therefore, below to the embodiments of the invention providing in the accompanying drawings
Detailed description be not intended to limit the scope of claimed invention, but be merely representative of the selected embodiment of the present invention.
Based on the embodiment in the present invention, it is all that those of ordinary skill in the art are obtained under the premise of not making creative work
Other embodiment, broadly falls into the scope of protection of the invention.
As shown in figure 1, being a kind of design of labyrinth type audio amplifier being applied in flat panel TV provided in an embodiment of the present invention
Method flow diagram.It should be noted that, the method that the present invention provides is not with the order of Fig. 1 and described below for limiting.Below will
Each step shown in Fig. 1 is described in detail.
Step S10, obtains the dimensional parameters of flat panel TV and the resonant frequency of the loudspeaker of labyrinth type audio amplifier.Wherein, institute
State dimensional parameters and include at least one of the length of flat panel TV, width, three parameters of height in hand.Described height in hand is
Refer in flat panel TV, remove the residual altitude outside the height shared by hardware such as mainboard.
Step S20, according to described dimensional parameters and resonant frequency, calculates and determines the biography being implemented in described labyrinth type audio amplifier
The length in defeated wire type sound pipe road.
In the present embodiment, as a kind of embodiment, as shown in Fig. 2 determining the described length transmitting wire type sound pipe road
Concrete grammar can include, but not limited to sub-step as described below.
Step S201, initializing variable parameter n=1.
Step S203, according to calculating formula：dn=nc/ (4f0) calculate described transmission wire type sound pipe road plan to build length, wherein,
f0Represent the resonant frequency of described loudspeaker, c represents the aerial spread speed of sound wave.
Because the aerial transmission speed of sound wave is relevant with air themperature, so in the present embodiment, the value of parameter c can
Environment temperature when being used with the temperature and/or described labyrinth type audio amplifier making a reservation for use/sales territory according to described flat panel TV
Determine.Wherein, environment temperature during described use can be operating temperature or indoor temperature of television set etc..
Step S205, according to the height in hand of described flat panel TV, determines that the length working as described transmission wire type sound pipe road is
Currently calculate plans to build length dnWhen, this subtube number included by transmission wire type sound pipe road.
In the present embodiment, described transmission wire type sound pipe road is in turn connected to form inflection type by multiple width identical levels
Subtube is constituted.Can go out work as with rough calculation using planning to build the height in hand divided by described flat panel TV for the length described in calculating
The length in transmission wire type sound pipe road is defined as the number that this plans to build included subtube during length.It is, of course, understood that
When the quotient non-integer calculating, carry out the process that rounds up under normal circumstances.But in other embodiments it is also possible to according to
Actual design conditions take other processing mode, for example, directly give up decimal place and round etc..
Step S207, the length according to described flat panel TV and the number of subtube calculate the design maximum of every subtube
Width, and judge that, when the width of subtube is set to described design maximum width, the conduit cross-sectional area of this subtube is whether
More than the vibrating diaphragm area of loudspeaker, if being more than, going to step S209, if being less than or equal to, going to step S213.
In the present embodiment, it should be noted that calculate generally to also need to during the design maximum width of subtube consider flat board
The factor such as the estimated number of labyrinth type audio amplifier installed and installation site in TV.Illustratively it is assumed that described flat panel TV
In estimated a labyrinth type audio amplifier is installed, then can directly be divided divided by the total number of subtube using the total length of flat panel TV
The design maximum width of pipeline；Assume the estimated labyrinth type audio amplifier installing two level of relative, then this sound in described flat panel TV
The overall width of case is at most 1/2nd of flat panel TV length, so being now divided by subtube by the total length of flat panel TV
The twice of total number obtains the design maximum width (however, it is desirable to illustrate, generally in that case, two of subtube
Should be spaced a distance between labyrinth type audio amplifier, to avoid producing interference, so during specific design, also should be true according to actual conditions
Fixed gap length between the two, after then deducting this gap length, then divided by subtube number in the total length of flat panel TV
Twice to determine design maximum width).It will be appreciated, of course, that two labyrinth type audio amplifiers are in actual setting, if transmission line
The trend in formula sound pipe road is located at two different planes, two being for example parallel to each other plane, then the maximum calculating subtube sets
During meter width, it still can be the total number divided by subtube for the total length directly utilizing flat panel TV.
After calculating the design maximum width of subtube, judge to be set to described design maximum width when the width of subtube
When spending, whether the conduit cross-sectional area of this subtube is more than the vibrating diaphragm area of loudspeaker.
Step S209, then judge current low-frequency minimum frequency f of this labyrinth type audio amplifiern=2f0Whether/n raises one's voice less than described
The low frequency dive ability of device, if being more than or equal to, going to step S211, if being less than, going to step S213.
In the present embodiment, from the computing formula planning to build length and low-frequency minimum frequency in transmission wire type sound pipe road, become
Amount n value is bigger, plans to build that length is longer, and correspondingly low-frequency minimum frequency is also less.But, due to potential under the low frequency of loudspeaker
Power is limited, once low-frequency minimum frequency f that the value order of n calculatesnLess than the low frequency dive ability of loudspeaker, then no matter transmit
The length in wire type sound pipe road is long again, and loudspeaker also cannot be made to be the sound wave sending less than its low frequency dive ability.So, this enforcement
In example, after judging that the condition in step S207 is set up, also need whether the value judging current n again makes low-frequency minimum frequency fn
Low frequency dive ability less than loudspeaker.
Step S211, plans to build length d by currently calculatenAs described transmission wire type sound pipe road alternative length it
One, and by n after Jia 2 return to step S203.
Step S213, determines that the length in described transmission wire type sound pipe road is the maximum in all alternative length.
Understand, value 1,3,5,7 ... waits positive odd number value to parameter n successively, and will meet according to the algorithm above description
The all of low frequency dive ability that the dimensional requirement of flat panel TV is more than or equal to loudspeaker again plan to build length dnAll alternately
Length.Arbitrary alternative length all can determine the final structure length for transmitting wire type sound pipe road.Certainly, based on more preferable low frequency
Frequency response effect considers, the final structure length that the maximum in all alternative length is defined as transmitting wire type sound pipe road is one excellent
Select embodiment.
It should be noted that in the present embodiment, described loudspeaker can be woofer or full frequency speaker.Reason exists
In the directive property of medium-high frequency sound wave by force it is virtually impossible to compensate the low frequency frequency response of middle/high frequency loudspeaker by transmitting wire type sound pipe road
Effect, and the wavelength of low-frequency sound wave is relatively long, and diffraction, diffraction easily occur, therefore can be low by transmitting the compensation of wire type sound pipe road
The frequency response effect of band loudspeaker.Additionally, the factor of the main consideration of parameter n value 1,3,5,7 ... is, in n value even number, from
The sound wave that reflects of transmission wire type sound pipe road generally identical with the acoustic phase that loudspeaker front sends it is impossible to suppress labyrinth type sound
Case is in the distortion of resonant frequency section.It will be appreciated, of course, that in other embodiments, according to actual design demand and can also answer
Adjust the value of n with scene.
The labyrinth type audio amplifier method for designing providing for clearer explanation the present embodiment, illustratively implements to one below
Mode is illustrated.Consider in the present embodiment that the size of flat panel TV is limited, so the value of variable n is using the side successively decreased
Formula, that is, value is 7 first, then successively decreases 2 successively, and its principle is identical with the method essence shown in Fig. 2.
, its length is 1456 millimeters taking 65 cun of liquid crystal flat-plate televisions of certain money as a example, and width is 73 millimeters, and total height is 855
Millimeter, height in hand is 500 millimeters, is specifically shown in Fig. 3.Now be expected in this flat panel TV install two level of relative and be spaced
At least 200 millimeters of labyrinth type audio amplifier.The resonant frequency of this loudspeaker selected by labyrinth type audio amplifier is 150 hertz, vibrating diaphragm
Width is 31 millimeters, and vibrating diaphragm length is 102 millimeters.The frequency response curve of this loudspeaker and impedance curve are as shown in Fig. 4 and Fig. 5.
In present embodiment, the width of labyrinth type audio amplifier should be between 31 millimeters and 73 millimeters.So, without loss of generality
Ground, the width design of this audio amplifier is 40 millimeters.
Below as the method shown in Fig. 2, determine the length of labyrinth type audio amplifier in this flat panel TV.
Make n value be 7, calculate and plan to build length d7=344 × 7/ (4 × 150)=4.01 meter, wherein 344 meter per seconds are ginseng
The value of amount c.The height in hand of this flat panel TV is 500 millimeters, so the total number of the subtube of single labyrinth type audio amplifier is 8
Individual.Then, the subtube sum of two audio amplifiers is 16 altogether.At least it is spaced 200 millimeters due between two audio amplifiers, thus single
The design maximum width of individual subtube is (1456-200)/16=78.5 millimeter.When the width design of subtube is 78.5 millimeters
When, its cross-sectional area is 78.5 × 40=3140 square millimeter, and the vibrating diaphragm area of loudspeaker is 102 × 31=3162 square of milli
Rice, that is, the cross-sectional area of subtube is less than the vibrating diaphragm area of loudspeaker, undesirable.
Make n value be 5 again, then plan to build length d5=344 × 5/ (4 × 150)=2.86 meter.Then calculate single labyrinth
The total number of the subtube of formula audio amplifier is 6, and the subtube of two labyrinth type audio amplifiers is 12 altogether.Between two audio amplifiers extremely
When being spaced 200 millimeters less, the design maximum width of single subtube is (1456-200)/12=104.7 millimeter.Now, it is in charge of
The cross-sectional area in road is 104.7 × 40=4188 square millimeter, and the vibrating diaphragm area of loudspeaker is 102 × 31=3162 square of milli
Meter, that is, the cross-sectional area of subtube is more than the vibrating diaphragm area of loudspeaker, meets the requirements.Judge again, when n value is 5, labyrinth type
The low-frequency minimum frequency of audio amplifier is 2f0/ n=2 × 150/5=60 hertz, without departing from the low frequency dive ability of loudspeaker, also complies with
Require.
According to above-mentioned result of calculation it may be determined that the length in the transmission wire type sound pipe road of this labyrinth type audio amplifier is 2.86
Rice, includes 6 subtubes, and the width of each subtube is 100 millimeters, and (design maximum width is 104.7 millimeters, for the ease of setting
Meter is implemented, and the width of subtube is set to 100 millimeters, now the cross-sectional area of subtube is still greater than the vibrating diaphragm face of loudspeaker
Long-pending, meet the requirements).Specific design drawing of implementing is shown in Fig. 6 A and 6B.Wherein, Fig. 6 A is only shown at the labyrinth of flat panel TV side
Formula audio amplifier, relative opposite side not shown.Fig. 6 B is the front view of described labyrinth type audio amplifier.
Further, Fig. 7 shows the frequency response curve of the flat panel TV applying above-mentioned labyrinth type audio amplifier, and Fig. 8 shows
The frequency response curve of the flat panel TV of the traditional phase inverted cabinet of application.Be not difficult to find out, using labyrinth type audio amplifier flat panel TV low
Again and again ring effect more preferably, frequency response is also more flat.
It is appreciated that this embodiment still can determine the length in transmission wire type sound pipe road using the method shown in Fig. 2.Its
Substantially process is, variable n successively value 1,3,5 when, judge all both to have met the dimensional requirement of flat panel TV through calculating, and not little
In the low frequency dive ability of loudspeaker, so d1,d3,d5All alternately length.Then n value 7 again, are computed not meeting chi
Very little requirement, then n do not continue to value.Last it is preferable that by the maximum d in all alternative length5It is defined as transmitting wire type sound
The final structure length of pipeline.
It should be noted that each subtube in the transmission wire type sound pipe road in labyrinth type audio amplifier can also be not wide
Degree.For example, in above-mentioned illustrated embodiment, labyrinth type audio amplifier includes 6 subtubes, and each subtube width is 100 millis
Rice.So, optional another embodiment is, the invariable number of subtube, and 600 millimeters of overall width is constant, but enters from back of the body ripple
It is gradually reduced to each subtube cross-sectional area carrying on the back ripple exit at mouthful, and ensure the cross section of any one subtube simultaneously
The long-pending vibrating diaphragm area being all higher than loudspeaker.
As shown in figure 9, being a kind of planar structure schematic diagram of labyrinth type audio amplifier 100 provided in an embodiment of the present invention.This fan
Palace formula audio amplifier 100 includes case body 102, full frequency speaker 104 and is implemented in the transmission wire type sound within described case body 102
Pipeline 106.
The first side wall (left side wall as shown in Figure 9) of described case body 102 is provided with an installation portion, second sidewall
(lower wall as shown in Figure 9) is provided with a radiating aperture 1062.Described full frequency speaker 104 is installed in described installation portion.
The one end in described transmission wire type sound pipe road 106 is connected with the sound basin sealing on described full frequency speaker 104, and the other end extends to institute
State radiating aperture 1062.The trend when back of the body ripple that this full frequency speaker 104 sends is propagated in this pipeline is shown in phantom by figure.
Described transmission wire type sound pipe road 106 encloses to build by the inwall of the wallboard shown in Fig. 9 and case body 102 and is formed.Institute
State and can also lay acoustic material and damping material, so that during sound wave transmits in pipeline, being fitted on wallboard and inwall
When absorption and damping, produce good air spring, reduce high-frequency harmonic frequency of oscillation in pipeline to labyrinth type audio amplifier 100
The harmful effect of frequency response effect.
It should be noted that as another kind of optional embodiment, described full frequency speaker 104 can be by woofer
With middle/high frequency loudspeaker combine replacement.Described woofer can be arranged at the same of case body 102 with middle/high frequency loudspeaker
Side wall is it is also possible to be arranged on different side walls.For example, in the present embodiment, described full frequency speaker 104 can be by arranging simultaneously
Woofer in the first side wall replaces, wherein, the sound basin of woofer and described transmission wire type with middle/high frequency loudspeaker
Sound pipe road 106 sealing linking.
It should be noted that, in the present embodiment, the position relationship of described the first side wall and second sidewall is not with shown in Fig. 9
For limit.For example, as shown in Figure 10 A or 10B, described the first side wall can be the left side wall of case body 102, second sidewall phase
Should be the upper side wall of case body 102, the back of the body ripple that described full frequency speaker 104 sends can be according to the transmission shown in figure dotted line
Path reflexes to case body 102 from the radiating aperture 1062 of upper side wall；Or, as illustrated in figure 10 c, described the first side wall and second
Side wall is all the left side wall on described case body 102；Again or, as shown in Figure 10 D, described the first side wall and second sidewall are institute
State on case body 102 relative to two side walls.
As shown in figure 11, it is a kind of the flat of labyrinth type audio amplifier 100 being provided with shown in two Fig. 9 provided in an embodiment of the present invention
The planar structure schematic diagram of plate TV 200.One of labyrinth type audio amplifier 100 is arranged at the first side of flat panel TV 200 (such as
Left surface shown in Figure 11), another labyrinth type audio amplifier 100 is arranged at the relative with this first side of flat panel TV 200
Second side (right flank as shown in Figure 11).The sound basin of two full frequency speakers 104 is mutually carried on the back on same level position
To setting, two radiating apertures 1062 are located at the 3rd side (downside as shown in Figure 11) of described flat panel TV 200 simultaneously.
The length being arranged at the transmission wire type sound pipe road 106 of labyrinth type audio amplifier 100 in this flat panel TV 200 is according to above-mentioned Fig. 1 and Fig. 2
Shown method determines.
In addition, it is preferred that at least a portion of the case body 102 of described labyrinth type audio amplifier 100 or case body 102 is permissible
It is made up of the shell body of flat panel TV 200, to reduce the volume of flat panel TV 200 further.
As shown in figure 12, it is that the application scenarios of the flat panel TV 200 shown in a kind of Figure 11 provided in an embodiment of the present invention show
It is intended to.When the user being seated at sofa watches program, the full range of two labyrinth type audio amplifiers 100 on this flat panel TV 200 is raised one's voice
Device 104 simultaneously to the left and right both direction give off medium-high frequency sound wave, two-way sound wave propagates at sofa after wall reflection.With
When, the low frequency back of the body ripple that two radiating aperture 1062 downward radiations go out, due to there is no directive property, can be regarded as directly reaching sofa
Listen phoneme.So, low-frequency sound wave is equivalent to and first reaches audition position than medium-high frequency sound wave.Say from phase angle, low frequency compares medium-high frequency
Phase place is slightly advanced, and in sense of hearing, low frequency is more strong and powerful, and medium-high frequency propagates to listen phoneme after the wall reflection of left and right, acoustically
Similar medium-high frequency sends from wall, makes user feel to be in a broad stereo sound field, presence stronger it will be apparent that
Improve the audio experience of user.
It is understood that in described flat panel TV 200 in addition to can applying the labyrinth type audio amplifier 100 shown in Fig. 9,
Can be with any one the labyrinth type audio amplifier 100 shown in application drawing 10A to Figure 10 D.For example, in described flat panel TV 200
After labyrinth type audio amplifier 100 shown in application drawing 10A, as shown in figure 13, two radiating apertures 1062 are arranged at described its planar structure
4th side of flat panel TV 200, i.e. upper side.Applied field shown in the flat panel TV 200 of this kind of structure is applied in Figure 12
Jing Zhonghou, equally can form more broad stereo sound field.
It should be noted that：Similar terms is represented in similar label and alphabetical superincumbent accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
Additionally, in describing the invention, it should be noted that term " on ", D score, "left", "right", " vertical ", " water
Flat ", " interior ", the orientation of instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, or this
Orientation or position relationship that bright product is usually put when using, are for only for ease of the description present invention and simplify description, rather than
Indicate or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.
Also, it should be noted in describing the invention, unless otherwise clearly defined and limited, term " setting ",
" installation ", " linking ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or one
Body ground connects；Can be to be mechanically connected or electrically connect；Can be joined directly together it is also possible to by intermediary indirect
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included not to be directly contact but passes through it is also possible to include the first and second features
Between other characterisation contact.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by described scope of the claims.
Claims (13)
1. a kind of method for designing of labyrinth type audio amplifier, be applied to the labyrinth type audio amplifier design process of flat panel TV it is characterised in that
The method includes：
Obtain the dimensional parameters of described flat panel TV and the resonant frequency of the loudspeaker of labyrinth type audio amplifier, wherein, described size ginseng
At least one of several length including flat panel TV, width, three parameters of height in hand；
According to described dimensional parameters and resonant frequency, determine the length in the transmission wire type sound pipe road being implemented in described labyrinth type audio amplifier
Degree.
2. method according to claim 1 is it is characterised in that according to described dimensional parameters and resonant frequency, determining and build
The step of the length in transmission wire type sound pipe road in described labyrinth type audio amplifier includes：
Step S1：According to calculating formula：dn=nc/ (4f0) calculate described transmission wire type sound pipe road plan to build length, wherein, n is just
Initial value is 1 odd number variable, and parameter c represents the aerial spread speed of sound wave, f0Represent the resonant frequency of described loudspeaker；
Step S2, according to the height in hand of described flat panel TV, determines that when the length in described transmission wire type sound pipe road be current counting
Calculate plans to build length dnWhen, this subtube number included by transmission wire type sound pipe road；
Step S3, the length according to described flat panel TV and the number of subtube calculate the design maximum width of every subtube,
And judge when the width of subtube is set to described design maximum width, whether the conduit cross-sectional area of this subtube is more than is raised
The vibrating diaphragm area of sound device；
Step S4, if the conduit cross-sectional area of this subtube is more than the vibrating diaphragm area of loudspeaker, then judges that this labyrinth type audio amplifier is worked as
Front low-frequency minimum frequency fnWhether it is less than the low frequency dive ability of described loudspeaker, wherein, fn=2f0/n；
Step S5, if current low-frequency minimum frequency f of this labyrinth type audio amplifiernMore than or equal to potential under the low frequency of described loudspeaker
Power, then plan to build length d by currently calculatenOne of alternative length as described transmission wire type sound pipe road, and n Jia 2 certainly
Return to step S1 afterwards.
3. method according to claim 2 is it is characterised in that according to described dimensional parameters and resonant frequency, determining and build
The step of the length in transmission wire type sound pipe road in described labyrinth type audio amplifier also includes：
Step S6, determines that the length in described transmission wire type sound pipe road is the maximum in all alternative length.
4. method according to claim 2 is it is characterised in that the value of described parameter c makes a reservation for according to described flat panel TV
Environment temperature when being used using the temperature of/sales territory and/or described labyrinth type audio amplifier is determined.
5. a kind of flat panel TV is arranged at labyrinth type audio amplifier within described flat panel TV it is characterised in that including at least one,
Wherein：
Described labyrinth type audio amplifier include case body, the woofer being arranged at described case first body side wall, be arranged at described
The radiating aperture of case second body side wall and the transmission wire type sound pipe road being implemented in described case body interior,
The one end in described transmission wire type sound pipe road is connected with the sound basin sealing of described woofer, and the other end extends to described spoke
Perforation, wherein, the length in this transmission wire type sound pipe road method according to any one in claim 1-4 as above
Calculate and determine.
6. flat panel TV according to claim 5 is it is characterised in that this flat panel TV is each in two sides of level of relative
It is provided with labyrinth type audio amplifier described in, and the overall width in the transmission wire type sound pipe road of this labyrinth type audio amplifier is less than described flat panel TV
/ 2nd of length.
7. flat panel TV according to claim 6 is it is characterised in that the sound basin of the woofer of two labyrinth type audio amplifiers
Same level position is mutually dorsad arranged.
8. flat panel TV according to claim 7 is it is characterised in that the first side wall of described case body and second sidewall are
Two different side walls.
9. flat panel TV according to claim 8 it is characterised in that the radiating aperture of two labyrinth type audio amplifiers be all located at described
The downside of flat panel TV or upper side.
10. flat panel TV according to claim 5 is it is characterised in that at least a portion of described case body is by flat board electricity
Depending on shell body constitute.
11. flat panel TVs according to claim 5 are it is characterised in that described transmission wire type sound pipe road is by described case body
Side wall and be arranged at described case body interior wallboard build formed, the side wall of described wallboard and described case body is laid with
Sound-absorbing material and damping material.
12. flat panel TVs according to claim 5 it is characterised in that described labyrinth type audio amplifier also include being arranged at described
The middle/high frequency loudspeaker of case body the 3rd side wall.
13. flat panel TVs according to claim 12 are it is characterised in that described the first side wall and described 3rd side wall are institute
State the same side wall on case body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611050374.XA CN106454170B (en) | 2016-11-24 | 2016-11-24 | Design method of labyrinth type sound box and flat-panel television |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611050374.XA CN106454170B (en) | 2016-11-24 | 2016-11-24 | Design method of labyrinth type sound box and flat-panel television |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246536A (en) * | 2018-09-30 | 2019-01-18 | 嘉善睿磬电声技术有限公司 | A kind of open type labyrinth speaker |
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| CN1988731A (en) * | 2005-12-23 | 2007-06-27 | 夏新电子股份有限公司 | Built in sound system of thin audio frequency device |
| CN203775362U (en) * | 2014-02-18 | 2014-08-13 | 陈小超 | Labyrinth type noise absorbing sound box |
| CN105959894A (en) * | 2016-05-24 | 2016-09-21 | 周依琳 | Manufacturing method of double-sheet labyrinth type auxiliary sound box |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988731A (en) * | 2005-12-23 | 2007-06-27 | 夏新电子股份有限公司 | Built in sound system of thin audio frequency device |
| CN203775362U (en) * | 2014-02-18 | 2014-08-13 | 陈小超 | Labyrinth type noise absorbing sound box |
| CN105959894A (en) * | 2016-05-24 | 2016-09-21 | 周依琳 | Manufacturing method of double-sheet labyrinth type auxiliary sound box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246536A (en) * | 2018-09-30 | 2019-01-18 | 嘉善睿磬电声技术有限公司 | A kind of open type labyrinth speaker |
| CN109246536B (en) * | 2018-09-30 | 2024-02-09 | 嘉善睿磬电声技术有限公司 | Open type labyrinth sound box |
Also Published As
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|---|---|
| CN106454170B (en) | 2020-01-24 |
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