Car sound insulation can reflect the professionalism of audio modification. The best service provided by the professional car audio conversion shop to the owner is to make the sound system play the best effect on the owner's car. If you do not do sound insulation, it is impossible to achieve!
The sound insulation construction of the door has the greatest impact on the sound effect. The speaker is mounted on the door. The door is equal to a resonance box. If the soundproof cotton is filled, the diffusion of the middle and low sound will be limited. What are the sounds that are absorbed by the sound-absorbing cotton? Therefore, the door part should be focused on sound insulation, strengthen in places where resonance or looseness is likely to occur, and wrap the cassette with a thin sponge to reduce the chance of vibration.
Sound insulation works not only to soundproof, but also to effectively block the high temperature generated by engine work, improve the air conditioning effect, and make you feel cool. The non-critical parts of the body cover, door, trunk, roof and fender are relatively weak. After the installation of soundproofing materials, the body is stronger and the passive safety factor is improved in the event of a collision. In particular, the subwoofer installed at the rear will cause the trunk to vibrate and the sound effect will be reduced. This is because the shock absorber has not been properly smashed, and the structure of the car cannot withstand the impact of the subwoofer and makes a "squeaky" sound.
effect:
1. Vibration-damping and sealing treatment of the sheet metal of the automobile through the vibration-damping material, improving the defects of the installation environment of the speaker, and restoring the sound pressure and sound quality effect of the car audio;
2. Vibration reduction and sound insulation treatment on the vehicle through vibration damping materials and sound insulation materials, reducing the noise transmitted by the automobile sheet metal structure and improving driving comfort;
3. The original car noise test of the car is generally around 60DB. After the completion, it can be reduced to 35DB to 40DB. Of course, the effect is related to the construction technology, and it is also related to the price.
solution:
Vibration reduction: Every car is made of metal and plastic sheets, which resonate during driving, causing a lot of low frequency noise. The original car factory will also handle some of the vibration sound sources, but it is not enough, so whether it is high-end cars or low-end cars, do not install, shock-absorbing materials.
Sound absorption: When the car is driving at high speed, the car body itself produces a resonance sound, and the high-efficiency sound-absorbing cotton is added for noise reduction and noise reduction processing.
Sound insulation: Due to the thinness of metal and plastic plates in the middle and low-end cars, external noise is introduced, and sound-insulated thick plates are installed to block noise.
Power Storage LiFePO4 Battery Solar Energy Systems For Home
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S/N
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Item
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Content
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1
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product type
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Modular 48V large-capacity energy storage power system
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2
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Module model
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48V200Ah
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3
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Weight
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430kg
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4
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System capacity
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200Ah*Parallel number(200~2000Ah)
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5
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Module dimension
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19-inch standard cabinet width, thickness 5U, depth 480
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6
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Maximum continuous charge and discharge current
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0.75C
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7
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Installation method
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Pedal models, seat bucket models, etc.
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8
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IP rating
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Module IP20, system power box can be customized IP65
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9
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Service life
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10 years or 3000 cycles
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10
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Operating temperature range
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Temperature: -20~60℃ Humidity: ≤85%RH
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11
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product description
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The product is positioned as an energy storage power supply system, in accordance with the ultra-long storage/cycle life, modular design, can be connected in parallel according to the required system capacity, and can realize battery intelligent monitoring and
battery management through RS485 communication or CAN communication, and inverter power supply/ UPS power supply and other equipment are perfectly compatible and can be widely used in various 48V energy storage power systems |
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14
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certificate
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MSDS,ISO9001,CB,UN38.3
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Energy Storage Lithium Battery Cbinet For Home
Jiangsu Zhitai New Energy Technology Co.,Ltd , https://www.zhitainewenergy.com