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an electromagnet

Active Publication Date: 2016-12-21
HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The edge of the big end hole of the taper hole has an annular platform that cooperates with the root of the cone. Although this annular platform can improve the blocking performance when the armature and the stopper are engaged, due to the setting of a ring at the opening of the large end of the taper hole The platform will reduce the opening of the large end of the tapered hole, thereby reducing the area of ​​the hole wall of the tapered hole, which will lead to a decrease in the attraction force between the armature and the stopper during the suction process, which will affect the reliability of the electromagnet. sex and stability

Method used

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Embodiment Construction

[0019] Embodiments of the electromagnet of the present invention: as Figure 1 to Figure 4 As shown, the electromagnet consists of a cylindrical shell 1, a cylindrical shell 2 installed in the shell 1, an electromagnetic coil 3 wound around the periphery of the shell 2 provided between the shell 2 and the shell 1, The stop seat 4 fixed at the lower end of the cylinder body 2, the ring-shaped sealing body 5 fixed between the upper end of the cylinder body 2 and the upper end of the outer shell 1, and the cover screwed on the ring-shaped sealing body 5 above the inner hole of the ring-shaped sealing body 5 The cylindrical armature 7 above the stop seat 4 that is slidably assembled in the body 6, the cylindrical body 2, and the push rod 8 that is fixed on the column armature 7 and passes through the through hole that is offered on the stop seat 4 are formed. Among them, there are four electromagnetic coils 3, and the whole formed by the four electromagnetic coils 3 is spirally wo...

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Abstract

The invention discloses an electromagnet. The electromagnet ensures that a large end hole edge of a taper hole coincides with the peripheral surface of a plugging part or the peripheral surface of a columnar armature, so that the areas of a large end opening of the taper hole and a hole wall surface of the taper hole are increased, and when an electromagnetic coil is powered on, the suction between the columnar armature and a stopping seat is larger than that of a columnar armature and a stopping seat in the prior art, so that the columnar armature and the stopping seat of the electromagnet have higher actuation strength under the condition of identical current strength in the electromagnetic coil, electric power resource is saved, and the operational reliability of the electromagnet is correspondingly improved.

Description

technical field [0001] The invention relates to the technical field of electromagnetic control switches, in particular to an electromagnet. Background technique [0002] At present, domestic contactors used to control the power supply of DC motors in high-speed trains are often driven by cylinders. However, due to the shortcomings of the cylinders, which have many accessories, large footprint, unstable output force and difficult maintenance, the contactors are occupied. The problem of large space and the inability to control the DC motor power supply stably and reliably. [0003] The Chinese invention patent with application number 98200216.5 discloses an electromagnet. The electromagnet has a cylindrical body extending in the up and down direction. An electromagnetic coil is wound around the body. A columnar armature is guided in the body along the up and down direction. And a stop seat for preventing the columnar armature from coming out of the barrel is fixed at the frac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/08H01F7/123
Inventor 胡兆华高汉平刘刚潘英朋刘宝林邵真贵
Owner HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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