Push-rod high-power electromagnetic relay

Abstract

The invention discloses a push-rod high-power electromagnetic relay which comprises an electromagnetic system, an insulating hood, a base, a normally closed static contact group, a movable contact group and a normally open static contact group, wherein the normally closed static contact group, the movable contact group and the normally open static contact group are fixedly arranged on the base in a near-far sequence from the electromagnetic system. The electromagnetic relay is characterized in that a first bending part and at least one normally closed static leading pin connected with the first bending part are arranged at the lower end of a normally closed static contact piece; a first clamping groove used for correspondingly clamping the first bending part and a first inserting groove used for correspondingly inserting the normally closed static leading pins are formed in the base; the first bending part is completely clamped into the first clamping groove; the insulating hood is arranged above the first bending part of the static contact piece, and fixedly connected with the base; and first strip groove holes are symmetrically formed on the left side and the right side of the upper part of a movable spring. The electromagnetic relay has the advantages that the load transfer capacity of contact points can be improved to the greatest extent under the condition that a boundary dimension of the electromagnetic relay and mounting dimensions of the leading pins are defined; and a good insulating property and reliable contact of the contact points can be ensured.

Description

technical field [0001] The invention relates to an electromagnetic relay, in particular to a push rod type high-power electromagnetic relay. Background technique [0002] The relay is a widely used electronic component, which is widely used in household appliances, automobiles, industrial control, power systems, communication devices and other fields. The development of miniaturization and high power of electromagnetic relays requires one of its development directions. [0003] The size of the mounting pins of the relay is generally determined according to the requirements of use, and is usually a standard size. For example, the size of the pins of many relays is a multiple of 2.54 when converted from the imperial system to the metric system. Therefore, the design of the relay product structure will be affected by the pins of the relay. The impact of the installation size of the bit, such as the structure and size of the components in the relay, and then affect the technical...

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Problems solved by technology

[0003] The size of the mounting pins of the relay is generally determined according to the requirements of use, and is usually a standard size. For example, the size of the pins of many relays is a multiple of 2.54 when converted from the imperial system to the metric system. Therefore, the design of the relay product structure will be affected by the pins of the relay. The impact of the installation size of the bit, such as the structure and size of the components in the relay, and then affect the technical indicators of the relay, under the conditions of the limited external dimensions and the distance between the pins of the relay, there are two types of existing electromagnetic relays The first is that the space of the electromagnetic system is small, so the driving source of the electromagnetic relay is relatively small, and the contact load conversion capacity of the relay is relatively small, which cannot meet the requirements of users; the second is that although the volume of the electromagnetic system is increased , but because the driving force of the electromagnetic system is relatively large, the contact contact force is also relatively large when the contacts are closed, and the frequency and amplitude of the contact bounce caused by the moving contacts will increase, and the contacts are easy to contact. The arc is generated and the contact is ablated, which causes the relay to fail after the contact has been operated for many times. What is more, the contact cannot be closed and produce substandard products on the relay production line.

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