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Radial multi-coil high-speed electromagnet

A high-speed electromagnet and multi-coil technology, applied in the field of electromagnets, can solve the problems that the temperature of the coil and the iron core cannot be effectively reduced, the middle of the coil and the iron core cannot be cooled, and the magnetic permeability of the magnetic material is reduced, etc. The distribution of the magnetic induction intensity is uniform and the effect of increasing the electromagnetic force

Active Publication Date: 2017-06-20
HARBIN ENG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In traditional electromagnets, only the upper end surface of the iron core can be in contact with the cooling fuel for efficient convection heat exchange, while the middle part of the iron core and the coil mainly exchange heat through heat conduction, and the heat resistance is large, and the heat exchange efficiency is low, so it is impossible to control the coil. Good cooling with the middle of the iron core, the temperature of the coil and the iron core cannot be effectively reduced, and the magnetic permeability of the magnetic material is reduced

Method used

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  • Radial multi-coil high-speed electromagnet
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  • Radial multi-coil high-speed electromagnet

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Embodiment Construction

[0028] The present invention will be described in more detail below with examples in conjunction with the accompanying drawings.

[0029] combine figure 1 , figure 2 , Figure 3(a), Figure 3(b), Figure 4(a), Figure 4(b), Figure 5 The composition of the first embodiment of the radial multi-coil permanent magnet high-speed electromagnet of the present invention includes an outer shell 1, a combined iron core 4, a radial coil 5, an armature 11, a coil skeleton 8, a sealing resin 9 and a valve stem 12. The outer casing 1 is a cylinder with a stepped through hole in the middle, and a fixed large nut 2 is arranged at the upper end; the fixed nut is a cylinder with a through hole center 7, an annular groove 27 on the lower end surface, and a through hole 28 in the center of the groove Body, its upper surface has a countersunk hole 3, and the lower end of the outer side is tapped with threads. The main magnetic pole 14 of the combined iron core is a cylinder with a cylindrical th...

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Abstract

The invention provides a radial multi-coil high-speed electromagnet. It includes an outer casing, an iron core and a coil. The iron core is composed of a main magnetic pole and an auxiliary magnetic pole. The main magnetic pole is a cylinder, and the auxiliary magnetic pole is a cylinder with a through hole in the center. The main magnetic pole is located in the through hole of the auxiliary magnetic pole. The body is covered outside the main magnetic pole, and the main magnetic pole or the auxiliary magnetic pole has a protruding ring. The protruding ring has uniformly distributed fan-shaped or waist-shaped through-holes in the axial direction. The inner core of the coil is formed between two adjacent fan-shaped through-holes. The coil Wound radially on the coil core. The invention has the characteristics of fast response speed, small driving current, high reliability and good heat dissipation, and is suitable for the electronically controlled fuel oil system of the diesel engine.

Description

technical field [0001] The invention relates to an electromagnet, in particular to a high-speed electromagnet for an electronically controlled fuel system of a diesel engine. Background technique [0002] In the fuel injection system of diesel engine, the solenoid valve as the actuator plays a decisive role in the performance of the fuel injection system. An electromagnet whose response speed can reach milliseconds can be called a high-speed electromagnet. As the main component of the solenoid valve, the high-speed powerful electromagnet is the direct interface between the electronic control unit of the fuel system and the fuel injection device, and realizes direct control of the fuel injection process, so it is the core component to ensure the normal operation of the fuel system. The strong electromagnetic force and quick response of the electromagnet ensure the accurate control of fuel injection timing and fuel injection volume, and provide hardware guarantee for the real...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/06F02M51/00
Inventor 范立云刘鹏周伟杨立平宋恩哲袁志国
Owner HARBIN ENG UNIV
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