CN208521598U - It is a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect - Google Patents
It is a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect Download PDFInfo
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- CN208521598U CN208521598U CN201821190916.8U CN201821190916U CN208521598U CN 208521598 U CN208521598 U CN 208521598U CN 201821190916 U CN201821190916 U CN 201821190916U CN 208521598 U CN208521598 U CN 208521598U
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- aluminium base
- base platform
- cuboid
- backing block
- rectangular pyramids
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Abstract
It is a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, bottom is a cuboid pedestal, and the longitudinal section of cuboid pedestal is rectangle；The truncated rectangular pyramids being disposed adjacent side by side equipped with several are upwardly extended from the top surface of cuboid pedestal, the longitudinal section of truncated rectangular pyramids is trapezoidal；The truncated rectangular pyramids of each include that there are two inclined sides, and the cross section of truncated rectangular pyramids from top to bottom becomes larger；It is upwardly extended respectively from the upper bottom surface of the truncated rectangular pyramids of each equipped with a cuboid, the longitudinal section of cuboid is rectangle；It is upwardly extended respectively from the top surface of the cuboid of each equipped with a triangular prism, the longitudinal section of triangular prism is triangle；The triangular prism of each includes that there are two inclined sides, and the cross section of triangular prism from top to bottom becomes larger；Change from small to big the cross section from top to bottom of aluminium base platform.The utility model can enhance sound absorption effect, simple and practical, and smaller on the influence of the acoustical behavior of backing block, at low cost, high-efficient.
Description
Technical field
The utility model relates to a kind of array probes in medical supersonic field, more specifically, in particular to a kind of increase
The aluminium base platform of noise elimination effect.
Background technique
Ultrasonic probe, which can pass through transmitting ultrasonic wave and receive opaque object, to be reflected with ultrasonic intensity, frequency
The echo-signal of the information such as rate, time intuitively reacts in-built image using available after processing, has fast
The advantages that fast, effective, simple and direct, therefore be the observation and diagnostic means being widely used at present.
The nuclear structure of ultrasonic probe, which is one, can emit and receive the energy converter that ultrasonic wave realizes signal conversion, transducing
Device is mainly made of piezoelectric element, matching layer, backing block.Piezoelectric element realizes electric energy, sound energy for emitting and receiving ultrasonic wave
Mutual conversion, be the critical component of ultrasonic probe, but piezoelectric element forward directed radiation sound energy not just one-sidedly, and
It can radiate backward, if piezoelectric element receives our unwanted echo-signals of rear, image interference certainly will be will cause.Matching
The front surface of piezoelectric element is arranged in layer, for making the impedance between object to be detected and piezoelectric element match.Backing block is solid
It is scheduled on the rear surface of piezoelectric element, epoxy resin is widely used at present, suitable filler is added to mix the material as backing block,
Effect mainly absorbs the ultrasonic wave that piezoelectric element radiates backward.
Obtain clear, reliable in quality a image, it is necessary to which elimination rear noise jamming as far as possible theoretically comes
It says, in order to obtain suitable characteristic impedance, can obtain required ultrasound by the formula or proportion for optimizing back lining materials and decline
Subtract coefficient, but also need to weigh the important parameters such as frequency bandwidth, sensitivity during making backing block, to the choosing of raw material
It selects and increases difficulty.In practical applications we it can be found that because material and space limitation, after uniquely relying on piezoelectric element
It is often inadequate that the back sheet on surface, which absorbs clutter,.Now widely used backing block generally all can increase by one in its bottom
Aluminium base platform can play the role of positioning, fixation when carrying out following process or assembling.Due to that may be produced when energy converter work
Raw biggish heat allows human body to have hot feeling when in use, and for a long time under these conditions using the service life that can make energy converter
It greatly shortens, backing block and its aluminium base platform can play the role of certain heat transfer.But the base station of previous technique connects with backing block
The characteristics of touching surface is substantially a plane, cannot make full use of its structure achievees the purpose that enhancing sound absorption, it is possible to
An improvement is carried out to base station on this basis.
Utility model content
The technical problem to be solved by the present invention is to: overcome the aluminium base platform sound absorption effect of existing backing block cooperation
Difference provides a kind of for increasing the backing of the array probe of noise elimination effect the defect that the acoustical behavior of backing block is affected
Block aluminium base platform.
In order to solve the above-mentioned technical problem, the utility model proposes following technical proposals: one kind is for increasing effect of eliminating the noise
The backing block aluminium base platform of the array probe of fruit, the bottom of the aluminium base platform are a cuboid pedestal, the longitudinal section of cuboid pedestal
It is rectangle；
The truncated rectangular pyramids being disposed adjacent side by side equipped with several are upwardly extended from the top surface of cuboid pedestal, the vertical of truncated rectangular pyramids cuts
Face is trapezoidal；
The truncated rectangular pyramids of each include that there are two inclined sides, and the cross section of truncated rectangular pyramids from top to bottom is to become larger
's；
It is upwardly extended respectively from the upper bottom surface of the truncated rectangular pyramids of each equipped with a cuboid, the longitudinal section of cuboid is long
It is rectangular；
It is upwardly extended respectively from the top surface of the cuboid of each equipped with a triangular prism, the longitudinal section of triangular prism is triangle
Shape；
The triangular prism of each includes that there are two inclined sides, and the cross section of triangular prism from top to bottom is to become larger
's；
Change from small to big the cross section from top to bottom of aluminium base platform.
The above technical solution is further limited in that the aluminium base platform include there are two or truncated rectangular pyramids described in three.
The above technical solution is further limited in that the shape and size of several truncated rectangular pyramids are identical.
The above technical solution is further limited in that the longitudinal section of the truncated rectangular pyramids is isosceles trapezoid.
The above technical solution is further limited in that the longitudinal section of the triangular prism is equilateral triangle.
The above technical solution is further limited in that the side of the truncated rectangular pyramids of aluminium base platform, the side of cuboid, triangular prism
Side be all coarse.
The above technical solution is further limited in that being truncated at the top of triangular prism.
The above technical solution is further limited in that truncated rectangular pyramids, cuboid, triangular prism together vertically be highly set as
H1, cuboid pedestal are highly set as h2, h1:h2=4:1 vertically.
The above technical solution is further limited in that digging several cavitys in aluminium base platform.
The above technical solution is further limited in that if offered on the bottom surface of cuboid pedestal several screw holes,
Dry location hole, several screw holes and several positioning holes centers are symmetrical.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, original backing block manufacture craft is had no need to change, it only need to can by the structure of aluminium base platform improvement cost utility model
Enhance sound absorption effect, it is simple and practical, and the acoustical behavior of backing block is influenced smaller；
2, the aluminium base platform of the utility model is processed using aluminium block wire cutting fast wire winding mode, at low cost, high-efficient；
3, the ultrasonic wave radiated backward when ultrasound probe transducer works, effective attenuation by absorption by back sheet to sound energy
It is converted into thermal energy.Part is not absorbed the ultrasonic wave of conversion and encounters the utility model aluminium base platform, due to the difference of medium acoustic impedance,
Using the lesser features of shape of top end part area of aluminium base platform, sound wave is incident from there, and the acoustic impedance of end is by former dielectric property
Impedance is gradually transitions the characteristic impedance close to sound-absorbing material and is absorbed, friction in the viscosity of the damping material of the utility model
Sound can be gradated as thermal energy and is consumed by effect, reduced piezoelectric element and received the ultrasound interference that rear reflection is returned.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model aluminium base platform first embodiment.
Fig. 2 is the longitudinal section of the utility model aluminium base platform first embodiment.
Fig. 3 is the figure of the bottom surface of the utility model aluminium base platform first embodiment.
Fig. 4 is that the longitudinal section after cavity is dug inside the utility model aluminium base platform.
Fig. 5 is the longitudinal section that the triangular prism of the utility model aluminium base platform is truncated top.
Fig. 6 is the longitudinal section of three groups of truncated rectangular pyramids of the utility model aluminium base platform, cuboid, triangular prism.
Fig. 7 is the longitudinal section of two truncated rectangular pyramids of the utility model aluminium base platform, two cuboids, three triangular prisms.
Specific embodiment
It please refers to Fig.1 to Fig.3, a kind of the first implementation for increasing the backing block aluminium base platform of the array probe of noise elimination effect
Example, is made, bottom is a cuboid pedestal 1 of metallic aluminium.
The longitudinal section of cuboid pedestal 1 is rectangle.
12, two location holes 14 of screw hole there are two being opened up on the bottom surface of cuboid pedestal 1.
Two screw holes 12 and two 14 central symmetries of location hole, fixation easy to process and when assembled.
Upwardly extended from the top surface of cuboid pedestal 1 set there are two shape and size it is identical be disposed adjacent side by side it is tetragonous
Platform 2, the longitudinal section of truncated rectangular pyramids 2 are isosceles trapezoids.
The truncated rectangular pyramids 2 of each include that there are two inclined sides 22.
The cross section of truncated rectangular pyramids 2 from top to bottom becomes larger.
It is upwardly extended respectively from the upper bottom surface of the truncated rectangular pyramids 2 of each equipped with a cuboid 3, the longitudinal section of cuboid 3
It is rectangle.
It is upwardly extended respectively from the top surface of the cuboid 3 of each equipped with a triangular prism 4, the longitudinal section of triangular prism 4 is
Equilateral triangle.
The triangular prism 4 of each includes that there are two inclined sides 42.
The cross section of triangular prism 4 from top to bottom becomes larger.
Incident acoustic wave enters in aluminium base platform from the inclined-plane of triangular prism 4 42, due to the cross section from top to bottom of aluminium base platform
Change from small to big, be mutually matched its characteristic impedance, almost has no to be absorbed entirely reflectingly to reach incident acoustic wave, this reality
It is low other than keeping to the good sound absorbing performance of high frequency with this absorbing structure of novel aluminum base station compared to plate sound absorption structure
Frequency sound absorbing performance is also good.
Truncated rectangular pyramids 2, cuboid 3, triangular prism 4 together be highly set as h1 vertically, cuboid pedestal 1 is highly set as vertically
H2, the ratio general control of the two can obtain preferable sound absorption effect in 4:1 or so, i.e. h1:h2=4:1.
When carrying out production backing block (not shown) with the utility model aluminium base platform, it need to only pass through two screws of aluminium base platform
Hole 12 and two location holes 14 are fixed in horizontal stripe (not shown), then by horizontal stripe in the mold (not shown) of backing block, are led to
It crosses and injects a certain amount of back lining materials into mold, taken out after relevant treatment is solidified, it is practical new to be secured to this
Backing block on type aluminium base platform.Wherein, aluminium base platform and backing block contact portion may be because that frictional force is not enough caused using one
Section time or stress and occur insecure or even the phenomenon that fall off, therefore, when making aluminium base platform, use wire cutting fast wire winding
Mode processed so that the side 22 of the truncated rectangular pyramids 2 of aluminium base platform, the side (not labeled) of cuboid 3, triangular prism 4 side
Face 42 be all it is coarse, be conducive to increase the frictional force between aluminium base platform and backing block, reduce the possibility to fall off.
According to the suitable chevron base station of different types of backing block production height, bottom edge size, excessive height will be will affect
The acoustical behavior of backing block, it is too low, weaken sound absorption effect, can comprehensively consider as needed and be adjusted flexibly.
The aluminium base platform for the array probe that the utility model is used to increase noise elimination effect has the advantage that
1, original backing block manufacture craft is had no need to change, it only need to can by the structure of aluminium base platform improvement cost utility model
Enhance sound absorption effect, it is simple and practical, and the acoustical behavior of backing block is influenced smaller；
2, the aluminium base platform of the utility model is processed using aluminium block wire cutting fast wire winding mode, at low cost, high-efficient；
On the basis of the utility model, feasible alternative includes following several or several combination:
A: digging several cavitys (as shown in Figure 4) in aluminium base platform, and cavity can have different shape and size, and increase passes through
Sound caused by cavity resonance can consume；
B: the top of the triangular prism 4 of aluminium base platform is truncated (as shown in Figure 5)；
C: the combination of truncated rectangular pyramids 2, cuboid 3, triangular prism 4 not only can be two groups as implemented in the first embodiment, also
It can be three groups (as shown in Figure 6) or more, include that there are two truncated rectangular pyramids, two cuboids, three triangular prisms shown in Fig. 7
Situation.
Claims (10)
1. a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, which is characterized in that the bottom of the aluminium base platform
It is a cuboid pedestal, the longitudinal section of cuboid pedestal is rectangle；
The truncated rectangular pyramids being disposed adjacent side by side equipped with several are upwardly extended from the top surface of cuboid pedestal, the longitudinal section of truncated rectangular pyramids is
It is trapezoidal；
The truncated rectangular pyramids of each include that there are two inclined sides, and the cross section of truncated rectangular pyramids from top to bottom becomes larger；
It is upwardly extended respectively from the upper bottom surface of the truncated rectangular pyramids of each equipped with a cuboid, the longitudinal section of cuboid is rectangular
Shape；
It is upwardly extended respectively from the top surface of the cuboid of each equipped with a triangular prism, the longitudinal section of triangular prism is triangle；
The triangular prism of each includes that there are two inclined sides, and the cross section of triangular prism from top to bottom becomes larger；
Change from small to big the cross section from top to bottom of aluminium base platform.
2. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
Be, the aluminium base platform include there are two or truncated rectangular pyramids described in three.
3. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
It is, the shape and size of several truncated rectangular pyramids are identical.
4. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
It is, the longitudinal section of the truncated rectangular pyramids is isosceles trapezoid.
5. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
It is, the longitudinal section of the triangular prism is equilateral triangle.
6. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
Be, the side of the truncated rectangular pyramids of aluminium base platform, the side of cuboid, triangular prism side be all coarse.
7. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
It is, is truncated at the top of triangular prism.
8. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
Be, truncated rectangular pyramids, cuboid, triangular prism together be highly set as h1 vertically, cuboid pedestal is highly set as h2, h1 vertically:
H2=4:1.
9. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
It is, several cavitys is dug in aluminium base platform.
10. according to claim 1 a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect, feature
It is, several screw holes, several location holes are offered on the bottom surface of cuboid pedestal, several screw holes are fixed with several
Position hole central symmetry.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821190916.8U CN208521598U (en) | 2018-07-26 | 2018-07-26 | It is a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821190916.8U CN208521598U (en) | 2018-07-26 | 2018-07-26 | It is a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect |
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| Publication Number | Publication Date |
|---|---|
| CN208521598U true CN208521598U (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821190916.8U Active CN208521598U (en) | 2018-07-26 | 2018-07-26 | It is a kind of for increasing the backing block aluminium base platform of the array probe of noise elimination effect |
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| Country | Link |
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| CN (1) | CN208521598U (en) |
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- 2018-07-26 CN CN201821190916.8U patent/CN208521598U/en active Active
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