Novel ultra-thin type electromagnetic relay

Abstract

The invention discloses an ultra-thin electromagnetic relay which comprises a contact component, a magnetic circuit component and a base, wherein the contact component and the magnetic circuit component are correspondingly matched and arranged on the base; a yokeiron / an iron core of the magnetic circuit component is an integral type structure which takes the shape of a reversed U; a strip-shaped opening is arranged at the bottom end of a coil rack of the magnetic circuit component along an axial line of a winding tube of the magnetic circuit component, the strip-shaped opening of the winding tube extends towards two sides to cause the bottom end of the coil rack to form a through groove which is provided with a downward opening and used for embedding the yokeiron / the iron core, and the through groove is provided with a convex structure used for preventing the embedded yokeiron / the iron core from dropping out corresponding to the inner side of the groove edge of the winding tube section. The electromagnetic relay with the structures can ensure that the magnetic circuit efficiency is promoted, and the aims of appropriately reducing the number of turns of the windings, the using amount of lacquered wires and the cost and promoting the medium voltage resistance between the output terminal and the input terminal can be achieved.

Description

technical field [0001] The invention relates to an electromagnetic relay structure, in particular to an ultra-thin electromagnetic relay. Background technique [0002] Electromagnetic relays are widely used in automatic control equipment. Due to the needs of technological development, relays are required to be more compact in structure, smaller in size, higher in sensitivity and higher in working reliability. The existing ultra-thin electromagnetic relay mainly includes contact parts, magnetic circuit parts, base, etc.; the contact parts include static reed components, moving reed components; Armature components, winding coils, etc.; static reed components and moving reed components are installed in the base by insert forming. figure 1 It is a schematic diagram of the structure of the existing ultra-thin electromagnetic relay, figure 2 It is an exploded schematic diagram of the structure of the existing ultra-thin electromagnetic relay, image 3 It is a structural schema...

AI Technical Summary

Problems solved by technology

But just because the bobbin 13' is designed as a closed structure, the yoke / iron core must be divided into two parts (that is, the iron core is separated from the magnetically conductive pole) before it can be packed into the bobbin 13'. These two parts need to be connected by lamination, riveting or laser welding. There is always high magnetic resistance at the joint, which leads to low efficiency of the magnetic circuit of the relay. Under the same magnetic circuit volume, the electromagnetic attraction generated by the magnetic circuit is relatively low. Small, so that the mechanical reaction force of the contact parts is also small, resulting in the disadvantages of low breaking load capacity of the contact parts and prone to bonding failure

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