The requirement of car audio to make electricity is to make the electricity generated by the generator reach the power equipment (such as the main machine and power amplifier) ​​as far as possible without loss, and at the same time take into account the safety of the vehicle. Everything in the car comes from the generator, just like the water in the city comes from rivers or reservoirs. The generator's power generation is like rainfall. It's a bit of a god. Your car generator is 80A. We can't ask it to generate 160A. It is not recommended to replace the high-power generator. Because of the following steps, If you can do well, you can achieve the same effect.
The car's battery is likened to a large water storage tower in an urban community. The larger the storage tower capacity, the more water it can support. Even in the case of a drought, it can last for a few days. The higher the water tower is built, the greater the water pressure will be generated, and the water for the residents and factories at the top will be guaranteed.
After the electric battery comes out, it must pass the fuse (FUSE). This is a problem that is difficult to achieve the best of both worlds. On the one hand, there will be a voltage drop after the electric fuse passes through, which will affect the perfect transmission of electricity. On the other hand, if there is no fuse, just in case The power cord is short-circuited, not only is it a car, but it can also cause life-threatening accidents!
Therefore, the fuse must be added, and the high purity connector and the non-contact leakage switch will be used to effectively eliminate the voltage drop. The urban water supply should calculate the water consumption of the community according to the population of the community and the type of the factory, and then decide how much water pipeline to use. It is not enough to use, and it is a waste. The thickness of the power cord used for car audio is subject to similar calculations.
In the roof of a residential building, there is usually a small water tower with a secondary water supply. Its function is equivalent to the storage capacitor in the car audio (for this reason, the capacitor is called “water pond†in Hong Kong, Macao and Guangdong). The role of the small water tower is well known, and the characteristics of the capacitor have its special features. The capacitor has a faster charging and discharging speed than the battery. When the power amplifier is to interpret a large dynamic music signal, it consumes a large amount of battery power in a very short time, so that the electric energy generates an instantaneous vacuum, and the capacitor is released at this time. Its reserve energy makes the music signal perfect.
The capacity of the capacitor is not as large as possible. The discharge capacity of the large-capacity capacitor will be slower. Generally speaking, each amplifier has a capacitance of 1 farad. If it is not satisfied, it can be more than a few. This is better than using A 5 Farah is better.
When you wash your hands, you will find that the water output of the faucet will increase with the opening of the knob, but it will be constant after a certain degree. No matter how you turn the knob, it does not work. This is because the valve of the faucet is completely opened.
The power output of the power amplifier will have similar characteristics. When the output of the power amplifier reaches the maximum, even if the GAIN continues to increase, it will not get more power, but will cause the music signal to be clipped, so that the power amplifier outputs DC power. The horn will have the possibility of scrapping.
In the small building of the audio, the residents' accommodation arrangements have always been so unreasonable. The bass family with the most water consumption will live on the top floor with the lowest water pressure, while the high-pitched beauty with less water will live on the first floor, and the home will basically not use water. Therefore, when we design the circuit for the sound system, as long as the power consumption of the bass part is ensured, the other parts are simple.
The new water supply system is ready. You can open the three water heaters together and enjoy a hot shower like a shower. In a few seconds, the house begins to flood. The old drainage system is plugged and cannot discharge such a large amount of sewage! The ground wire in the car audio system is the drain of the sound system. The ground wire is not connected well, or the caliber is not enough. The work done before is in vain.
The car's battery is likened to a large water storage tower in an urban community. The larger the storage tower capacity, the more water it can support. Even in the case of a drought, it can last for a few days. The higher the water tower is built, the greater the water pressure will be generated, and the water for the residents and factories at the top will be guaranteed.
After the electric battery comes out, it must pass the fuse (FUSE). This is a problem that is difficult to achieve the best of both worlds. On the one hand, there will be a voltage drop after the electric fuse passes through, which will affect the perfect transmission of electricity. On the other hand, if there is no fuse, just in case The power cord is short-circuited, not only is it a car, but it can also cause life-threatening accidents!
Therefore, the fuse must be added, and the high purity connector and the non-contact leakage switch will be used to effectively eliminate the voltage drop. The urban water supply should calculate the water consumption of the community according to the population of the community and the type of the factory, and then decide how much water pipeline to use. It is not enough to use, and it is a waste. The thickness of the power cord used for car audio is subject to similar calculations.
In the roof of a residential building, there is usually a small water tower with a secondary water supply. Its function is equivalent to the storage capacitor in the car audio (for this reason, the capacitor is called “water pond†in Hong Kong, Macao and Guangdong). The role of the small water tower is well known, and the characteristics of the capacitor have its special features. The capacitor has a faster charging and discharging speed than the battery. When the power amplifier is to interpret a large dynamic music signal, it consumes a large amount of battery power in a very short time, so that the electric energy generates an instantaneous vacuum, and the capacitor is released at this time. Its reserve energy makes the music signal perfect.
The capacity of the capacitor is not as large as possible. The discharge capacity of the large-capacity capacitor will be slower. Generally speaking, each amplifier has a capacitance of 1 farad. If it is not satisfied, it can be more than a few. This is better than using A 5 Farah is better.
When you wash your hands, you will find that the water output of the faucet will increase with the opening of the knob, but it will be constant after a certain degree. No matter how you turn the knob, it does not work. This is because the valve of the faucet is completely opened.
The power output of the power amplifier will have similar characteristics. When the output of the power amplifier reaches the maximum, even if the GAIN continues to increase, it will not get more power, but will cause the music signal to be clipped, so that the power amplifier outputs DC power. The horn will have the possibility of scrapping.
In the small building of the audio, the residents' accommodation arrangements have always been so unreasonable. The bass family with the most water consumption will live on the top floor with the lowest water pressure, while the high-pitched beauty with less water will live on the first floor, and the home will basically not use water. Therefore, when we design the circuit for the sound system, as long as the power consumption of the bass part is ensured, the other parts are simple.
The new water supply system is ready. You can open the three water heaters together and enjoy a hot shower like a shower. In a few seconds, the house begins to flood. The old drainage system is plugged and cannot discharge such a large amount of sewage! The ground wire in the car audio system is the drain of the sound system. The ground wire is not connected well, or the caliber is not enough. The work done before is in vain.
Specifications
1.Steel Processed Reel
2.In accordance with GB4004-83, JB/T7600.3-94 and DlN46395 standards
- choice of flange with or without ribs
- extra stiffeners in the drum
- painting
- hot galvanizing
- stainless steel version
- dynamic balancing
|
Serial Number |
Specification Model
|
Lateral Plate Diameter D1
|
Major Diameter D2
|
Axle Hole Diameter D4
|
Carrying Hole Diameter D5
|
Center Distance E of Axle Hole and Carrying Hole
|
External Width L1
|
Internal Width L2
|
|
1
|
315
|
315
|
120
|
33.5
|
16
|
86
|
238
|
200
|
|
2
|
400
|
400
|
160/200
|
56
|
16
|
71-112
|
300
|
250
|
|
3
|
440
|
440
|
220
|
80
|
16-28
|
180
|
316
|
292
|
|
4
|
450
|
450
|
180/224
|
56
|
16-28
|
71-112
|
335
|
280
|
|
5
|
500
|
500
|
250
|
56
|
16-28
|
142
|
335
|
315
|
|
6
|
560
|
560
|
224/280
|
56
|
16-28
|
71-112
|
425
|
355
|
|
7
|
600
|
600
|
250/300
|
56/60
|
16-28
|
71-112
|
340/3
85 |
300/3
50 |
|
8
|
630
|
630
|
335
|
80
|
16-32
|
140
|
495
|
450
|
|
9
|
710
|
710
|
355/400
|
80
|
28-40
|
71-112
|
530
|
450
|
|
10
|
760
|
760
|
355
|
32.5/54
|
21-35
|
64-115
95-126.5 |
345
315 |
295
280 |
|
11
|
762
|
762
|
355/400
|
60
|
25-40
|
135
|
360
|
280
|
|
12
|
787
|
787
|
450
|
127
|
25.4
|
120
|
560
|
485
|
|
13
|
800
|
800
|
450
|
200
|
28-40
|
135
|
600
|
500
|
|
14
|
900
|
900
|
380
|
80
|
28-40
|
400
|
764
|
720
|
|
15
|
1000
|
1000
|
500
|
200
|
28-40
|
320
|
780
|
660
|
Punching Wire Spool, Pressed Steel Spool, Single Wall Reel, Pressed Bobbin
NINGBO BEILUN TIAOYUE MACHINE CO., LTD. , http://www.spool-manufacturer.com