10mm Hole BH10 FP DP EP SQP FDP Pulse Jet Solenoid Valve Coil

10mm Hole BH10 FP DP EP SQP FDP Pulse Jet Solenoid Valve Coil

In the process of making a coil of pneumatic pulse solenoid valve coil, it is not as simple as we usually wrap the solenoid coil up. In the actual winding process of the solenoid valve coil, it is necessary to carry out targeted winding according to different needs. Here are some precautions for finishing the electromagnetic coil winding:

1. Use the appropriate wire. A thin wire will increase the resistance of the solenoid coil and cause the quality of the solenoid coil, that is, the Q value to decrease. At the same time, its current carrying capacity and mechanical strength are small, and it is easy to blow or break the wire. Therefore, under the premise of ensuring the current carrying capacity and mechanical strength of the solenoid coil, a suitable wire is selected for winding.

2. For solenoid coils with different operating frequencies, use magnetic cores of different materials. For example, in the electromagnetic coil working in the audio section, silicon steel sheet or permalloy is usually used as the core material; in the middle wave broadcast section, the ferrite core is generally used, and is wound by a plurality of insulated wires.

Technical parameter of BH10 Turbo Type Pulse Solenoid Valve Coils:

Main dimension of BH10 DIN43650A turbo type pulse valve solenoid coils:

Electric magnetic coil applied in TURBO Type Pulse Jet Solenoid Valve:

Production display of TURBO type BH10 flying lead electromagnetic coils:

Solenoid coil with armature assembly:

(1) Relationship between suction and stroke

The relationship between electromagnetic attraction and stroke (ie, air gap) is called suction characteristics. The sum of the spring force and the force of gravity is called the reaction force characteristic. It is hoped that under any stroke, the suction force of the electromagnet is slightly larger than the reaction force, which ensures that the moving iron core is sucked in, and the movement speed is too fast to cause impact and rebound. This avoids contact welding and burning to improve life.

The suction force of the direct current magnet is inversely proportional to the square of the stroke. When the stroke is large, the suction force is small, that is, the power is small.

The suction characteristic curve of the AC electromagnet is relatively flat, that is, there is a large suction force when the stroke is large.

(2) Starting current and holding current

When the AC electromagnet voltage is constant, the magnitude of the excitation current is related to the resistance of the coil, but it is mainly affected by the stroke. The stroke is large, the magnetic resistance is large, and the exciting current is also large. The current at the maximum stroke is called the starting current, and the current at the time of suction is called the holding current, also called the exciting current. In large electromagnets, the starting current can reach more than 10 times the holding current. The starting current of a small electromagnet can also reach 2 to 4 times the holding current. If the moving iron core is stuck and the starting current continues to flow, the coil heats up extremely and is even burned. Electromagnetic pilot valves with small strokes are not easy to burn. AC electromagnets should not be switched on and off frequently. The life is not as long as the DC electromagnet.

When the voltage is constant, the coil current of the DC electromagnet only depends on the coil resistance, regardless of the stroke size. When the moving iron is stuck, it will not burn the coil. The DC electromagnet can be frequently turned on and off, and the work is safe and reliable. However, if the voltage is too high and the current is too high, the coil will still be burnt.

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