CN212486916U - Low-noise monolithic integrated amplifier - Google Patents
Low-noise monolithic integrated amplifier Download PDFInfo
- Publication number
- CN212486916U CN212486916U CN202020721955.7U CN202020721955U CN212486916U CN 212486916 U CN212486916 U CN 212486916U CN 202020721955 U CN202020721955 U CN 202020721955U CN 212486916 U CN212486916 U CN 212486916U
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- Prior art keywords
- sound
- plate
- noise
- absorbing layer
- monolithic integrated
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- 238000013016 damping Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 11
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 101100495256 Caenorhabditis elegans mat-3 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a monolithic integrated amplifier of low noise, including the amplifier main part, the amplifier main part is arranged in the box, the box includes bottom plate, curb plate and movable roof, the equal fixedly connected with rubber layer in top of curb plate, the outside of bottom plate, curb plate and movable roof is provided with the shell, the internal connection of shell has the acoustic celotex board, the inside of acoustic celotex board is provided with the sound-absorbing layer, and forms the amortization chamber between sound-absorbing layer and the acoustic celotex board, the through-hole has evenly been seted up on the sound-absorbing layer. The utility model discloses a set up the sound absorbing layer at the box inner wall, carry out the preliminary absorption to the noise, set up the amortization chamber in the sound absorbing layer, the amortization intracavity sets up the damping plate of interval symmetry, sets up protruding piece between the adjacent damping plate in the outside, extension noise sound wave route, the noise reduction, the amortization chamber outside sets up the acoustic celotex board, further carries out the separation to the noise, and noise reduction is effectual.
Description
Technical Field
The utility model relates to an amplifier technical field specifically is a monolithic integrated amplifier of low noise.
Background
The amplifier is a device capable of amplifying the voltage or power of an input signal and is composed of a tube or a transistor, a power transformer and other electrical components. The device is used in various devices such as communication, broadcasting, radar, television, automatic control and the like. Amplifiers are important elements in the processing of signals in automation technology tools. The amplification of the amplifier is realized by controlling the energy source by the input signal, and the power consumption required by the amplification is provided by the energy source. When the amplifier works, certain noise is generated due to inevitable environmental or electromagnetic interference, and the amplifier in the prior art is lack of noise reduction processing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a monolithic integrated amplifier of low noise to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a monolithic integrated amplifier of low noise, includes the amplifier main part, the amplifier main part is arranged in the box, the box includes bottom plate, curb plate and movable roof, the equal fixedly connected with rubber layer in top of curb plate, the outside of bottom plate, curb plate and movable roof is provided with the shell, the internal connection of shell has the acoustic celotex board, the inside of acoustic celotex board is provided with the sound-absorbing layer, and forms the amortization chamber between sound-absorbing layer and the acoustic celotex board, the through-hole has evenly been seted up on the sound-absorbing layer.
As a further aspect of the present invention: the bottom of box is fixed and is provided with the base, the base is the fixed block of even setting, the bottom of base is provided with the slipmat.
As a further aspect of the present invention: one end of the movable top plate is hinged to the top end of the side plate corresponding to the box body through a hinged column, and a handle groove is formed in one side, far away from the hinged column, of the upper portion of the movable top plate inwards.
As a further aspect of the present invention: the three movable ends of the movable top plate correspond to the top ends of the three side plates, grooves are formed in the top ends of the three side plates, protruding strips are connected with the positions, corresponding to the grooves, below the movable top plate in a downward integrated mode, and rubber layers are arranged in the grooves.
As a further aspect of the present invention: the inner walls of the two sides of the silencing cavity are symmetrically provided with damping plates at intervals inwards, and the inner wall of the silencing cavity, which is close to one side of the sound insulation plate, is uniformly and inwards provided with convex blocks.
As a further aspect of the present invention: the sound absorption layer is made of glass fiber cotton, and the sound insulation board is a composite sound insulation board.
As a further aspect of the present invention: air holes are uniformly formed in the side plates on the left side and the right side of the box body, and sound absorbing cotton is arranged in the air holes.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a set up the sound absorbing layer at the box inner wall, carry out the preliminary absorption to the noise, set up the amortization chamber in the sound absorbing layer, the amortization intracavity sets up the damping plate of interval symmetry, sets up protruding piece between the adjacent damping plate in the outside, extension noise sound wave route, the noise reduction, the amortization chamber outside sets up the acoustic celotex board, further carries out the separation to the noise, and noise reduction is effectual.
2. The utility model discloses a set up the recess on the curb plate, the correspondence of activity roof below sets up protruding strip, sets up the rubber layer in curb plate top and the recess, improves the leakproofness, avoids the noise to spread from curb plate and activity roof junction, noise reduction.
3. The utility model discloses a set up the bleeder vent on the curb plate, the heat dissipation of being convenient for sets up in the bleeder vent simultaneously and inhales the sound cotton, noise reduction.
Drawings
Fig. 1 is a schematic diagram of a low noise monolithically integrated amplifier.
Fig. 2 is a schematic cross-sectional view of a low noise monolithically integrated amplifier.
Fig. 3 is an enlarged view of the structure of the region a in fig. 2.
Fig. 4 is a schematic diagram of the internal structure of the bottom plate, the side plates and the movable top plate of the low-noise monolithic integrated amplifier.
In the figure: the sound absorption device comprises a box body 1, a base 2, an anti-slip mat 3, a bottom plate 4, a side plate 5, a movable top plate 6, a hinge column 7, a groove 8, a protruding strip 9, a rubber layer 10, a handle groove 11, a shell 12, a sound insulation plate 13, a sound attenuation cavity 14, a sound absorption layer 15, a through hole 16, a damping plate 17, a protruding block 18, an air hole 19 and sound absorption cotton 20.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-4, a monolithic integrated amplifier with low noise, including an amplifier main body, the amplifier main body is disposed in a box body 1, the box body 1 includes a bottom plate 4, a side plate 5 and a movable top plate 6, a rubber layer 10 is fixedly connected to the top end of the side plate 5, the joint between the movable top plate 6 and the side plate 5 is sealed, noise is reduced, a housing 12 is disposed on the outer sides of the bottom plate 4, the side plate 5 and the movable top plate 6, a sound insulation plate 13 is connected to the housing 12, noise is blocked, a sound absorption layer 15 is disposed inside the sound insulation plate 13, noise can be effectively absorbed, a sound attenuation cavity 14 is formed between the sound absorption layer 15 and the sound insulation plate 13, noise is further reduced, and through holes 16 are uniformly formed in the sound absorption layer 15.
The fixed base 2 that is provided with in bottom of box 1 carries out the outrigger to box 1, and base 2 is the fixed block of even setting, and the bottom of base 2 is provided with slipmat 3, improves stability.
One end of the movable top plate 6 is hinged to the top end of the side plate 5 corresponding to the box body 1 through the hinge column 7, and a handle groove 11 is formed in one side, far away from the hinge column 7, of the upper portion of the movable top plate 6, so that the movable top plate 6 can be opened conveniently.
All inwards set up flutedly 8 on the three curb plate 5 top that the three expansion end of activity roof 6 corresponds, and the below of activity roof 6 corresponds downward body coupling in position department with recess 8 and has protruding strip 9, is provided with rubber layer 10 in the recess 8, through setting up protruding strip 9 in recess 8, sets up rubber layer 10 in the recess 8, further strengthens the leakproofness of junction between activity roof 6 and the curb plate 5, avoids the noise to spread from the junction.
The inner walls of the two sides of the sound attenuation cavity 14 are symmetrically provided with the damping plates 17 at intervals inwards, the inner wall of the sound attenuation cavity 14, which is close to one side of the sound insulation plate 13, is uniformly and inwards provided with the convex blocks 18, noise sound waves entering the sound attenuation cavity 14 from the sound absorption layer 15 and the through holes 16 sequentially pass through the damping plates 17 which are arranged in a staggered mode and are refracted by the convex blocks 18, and sound wave propagation paths are prolonged, so that noise is greatly reduced.
The sound absorption layer 15 is made of glass fiber cotton, noise can be well absorbed, the sound insulation board 13 is a composite sound insulation board, more than three layers of materials with different densities and characteristics are adopted, and a polymer damping material is added, so that the sound insulation effect is better.
The side plates 5 on the left side and the right side of the box body 1 are uniformly provided with air holes 19 for radiating the amplifier main body, and the sound absorption cotton 20 is arranged in the air holes 19, so that noise can be absorbed, and air propagation cannot be influenced.
The utility model discloses a theory of operation is: arrange the amplifier main part in box 1, cover movable roof 6, the protruding strip 9 of movable roof 6 inserts in the recess 8 of curb plate 5, and 5 tops of curb plate and 8 inboard settings rubber layer 10 of recess, the reinforcing leakproofness, avoid the noise to spread from curb plate 5 and the 6 junction of movable roof, 1 inner wall of box sets up sound absorbing layer 15, carry out preliminary absorption to the noise, then the noise gets into amortization chamber 14, set up the damping plate 17 of interval symmetry in the amortization chamber 14, set up protruding piece 18 between the adjacent damping plate 17 in the outside, extension noise sound wave route, the noise reduction, acoustic celotex board 13 further carries out the separation to the noise at last, the noise reduction is effectual.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides a monolithic integrated amplifier of low noise, includes the amplifier main part, its characterized in that, the amplifier main part is arranged in box (1), box (1) is including bottom plate (4), curb plate (5) and activity roof (6), the equal fixedly connected with rubber layer (10) in top of curb plate (5), the outside of bottom plate (4), curb plate (5) and activity roof (6) is provided with shell (12), the internal connection of shell (12) has acoustic celotex board (13), the inside of acoustic celotex board (13) is provided with sound absorbing layer (15), and forms amortization chamber (14) between sound absorbing layer (15) and acoustic celotex board (13), through-hole (16) have evenly been seted up on sound absorbing layer (15).
2. A low-noise monolithic integrated amplifier according to claim 1, wherein a base (2) is fixedly arranged at the bottom of the box body (1), the base (2) is a fixed block which is uniformly arranged, and a non-slip mat (3) is arranged at the bottom of the base (2).
3. The monolithic integrated amplifier as recited in claim 1, wherein one end of the movable top plate (6) is hinged to the top end of the corresponding side plate (5) of the box body (1) through a hinge column (7), and a handle groove (11) is formed in the side, far away from the hinge column (7), of the upper part of the movable top plate (6) inwards.
4. The monolithic low-noise amplifier according to claim 1, wherein the top ends of the three side plates (5) corresponding to the three movable ends of the movable top plate (6) are provided with grooves (8) inwards, a protruding strip (9) is integrally connected downwards below the movable top plate (6) at a position corresponding to the grooves (8), and a rubber layer (10) is arranged in the grooves (8).
5. A low noise monolithic integrated amplifier according to claim 1, wherein said sound-deadening chamber (14) has inwardly spaced and symmetrical damping plates (17) on both inner walls, and said sound-deadening chamber (14) has inwardly and uniformly raised blocks (18) on the inner wall on the side close to the sound-deadening plate (13).
6. A low noise monolithic integrated amplifier according to claim 1, wherein said sound absorbing layer (15) is glass fiber wool and said baffle (13) is a composite baffle.
7. The monolithic integrated amplifier as claimed in claim 1, wherein the side plates (5) on the left and right sides of the box body (1) are uniformly provided with air holes (19), and sound absorbing cotton (20) is arranged in the air holes (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020721955.7U CN212486916U (en) | 2020-05-06 | 2020-05-06 | Low-noise monolithic integrated amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020721955.7U CN212486916U (en) | 2020-05-06 | 2020-05-06 | Low-noise monolithic integrated amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212486916U true CN212486916U (en) | 2021-02-05 |
Family
ID=74454598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020721955.7U Expired - Fee Related CN212486916U (en) | 2020-05-06 | 2020-05-06 | Low-noise monolithic integrated amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212486916U (en) |
-
2020
- 2020-05-06 CN CN202020721955.7U patent/CN212486916U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |