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A lightweight AC contactor iron core and its manufacturing method

A technology of AC contactors and manufacturing methods, which is applied in the direction of inductance/transformer/magnet manufacturing, relays, electromagnetic relays, etc., can solve the problems of not being able to optimize the operating efficiency and manufacturing costs of contactors, and achieve the goal of reducing dirt. Opportunity, increase the integrity and structural strength, the effect of convenient processing

Inactive Publication Date: 2015-08-05
CHENGDU HIVOS ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The AC contactor is a product of mechatronics structure. It is far from being able to optimize the operating efficiency and manufacturing cost of the contactor simply by changing the electronic control method of the AC contactor.

Method used

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  • A lightweight AC contactor iron core and its manufacturing method
  • A lightweight AC contactor iron core and its manufacturing method
  • A lightweight AC contactor iron core and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The iron core in this example is an E-type iron core. Both the moving iron core and the static iron core are composed of stacked silicon steel sheets. The structure of the moving iron core silicon steel sheets is as follows: figure 1 As shown, the structure of the static iron core silicon steel sheet is as follows figure 2As shown, OP is the symmetry axis of the silicon steel sheet. The circular through hole 2 in the figure is the assembly hole of the iron core, including the rivet hole for riveting the iron core and the bracket hole for installing the bracket. The rectangular through hole 1 in the figure is a hollow structure processed for weight reduction. Obviously, the hollow structure 1 can also be processed into a circular through hole. Although the weight reduction effect of the circular through hole is not as good as that of the rectangular through hole, the processing of the circular through hole is more convenient and the mold structure is simpler.

[0044]...

Embodiment 2

[0046] The iron core in this example is also an E-shaped iron core with a symmetrical structure, and the silicon steel sheet structure of the moving iron core is as follows: Figure 5 As shown, the structure of the static iron core silicon steel sheet is as follows Figure 6 shown. If one side of the silicon steel sheet is defined as the front side (side A), the opposite side is the back side (side B). see Figure 5 and Figure 6 ,in Figure 5 a is the front view of side A of the moving iron core silicon steel sheet, Figure 5 b is the front view of the B side of the moving iron core silicon steel sheet, Figure 6 a is the front view of surface A of the static iron core silicon steel sheet, Figure 6 b is the front view of the B side of the static iron core silicon steel sheet. It can be seen that in the iron core of this example, the hollow structures on the silicon steel sheets are located on both sides of the symmetry axis of the silicon steel sheets, and the positio...

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Abstract

The invention relates to an alternating-current contactor, and discloses a light-weight alternating-current contactor iron core. Due to light-weight treatment carried out on the iron core, the weight of the alternating-current contactor is reduced, and running efficiency and reliability of the alternating-current contactor are further improved. According to the technical scheme, the light-weight alternating-current contactor iron core is formed by stacking silicon steel sheets. The light-weight alternating-current contactor iron core is characterized in that a hollow-out structure is arranged on the silicon steel sheets so that the weight of the iron core can be reduced. According to the light-weight alternating-current contactor iron core, the actual weight reduction effect can be equal to or larger than 17%, and the weight reduction effect is quite outstanding particularly for the large-power contactor. Due to the fact that the hollow-out position is reasonably selected, the influence on the structural strength of the iron core can be reduced, the influence of the hollow-out structure on the magnetic conductivity of the iron core can be compensated by adjusting parameters of a driving system, and normal use of the iron core is not affected. The alternating-current contactor iron core is particularly suitable for spaceflight devices, aviation devices, naval ships, vehicles and other devices.

Description

technical field [0001] The invention relates to the technical field of AC contactors, in particular to a lightweight AC contactor core structure and a manufacturing method for the core. Background technique [0002] AC contactor is a low-voltage electrical appliance widely used. Based on the working principle of "power-on pull-in, power-on hold, power-off release", when using AC control power supply to control, hysteresis loss and eddy current loss in the core and short-circuit ring account for More than 90% of the total energy consumption increases the power loss on the grid line and shortens the service life of the contactor coil. In order to change this high energy consumption operation situation, my country promulgated GB21518-2008 "Energy Efficiency Limits and Energy Efficiency Grades of AC Contactors". Research on AC contactor energy saving and electronic control technology has played a positive role in promoting. [0003] At present, the energy-saving technology of A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/16H01H49/00H01F41/02
CPCH01F41/02H01H49/00H01H50/16
Inventor 刘津平刘昊李强高萌
Owner CHENGDU HIVOS ELECTRICAL TECH
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