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Solenoid Coil Assembly

A technology of electromagnetic coils and components, applied in electrical components, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve problems such as easy entry of dirt

Active Publication Date: 2021-07-20
BEIJING PEOPLES ELECTRIC PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an electromagnetic coil assembly to solve the problem that dirt easily enters its interior

Method used

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  • Solenoid Coil Assembly
  • Solenoid Coil Assembly
  • Solenoid Coil Assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. The structure of the casing 100 .

[0047] The upper housing 130 , the bobbin 120 and the lower housing 110 together constitute the housing 100 of the travel switch.

[0048] The lower housing 110 is barrel-shaped with one end open, and its open end is inserted into the left end of the coil frame 120 .

[0049] The upper shell 130 is barrel-shaped with one end open, and its open end is inserted into the right end of the coil frame 120 . An opening 131 is provided at a barrel bottom portion of the upper case 130 , forming the opening 131 of the housing 100 .

[0050] The bobbin 120 has an inner cavity, and the inner cavity communicates with the upper shell 130 and the lower shell 110, and a cavity is formed inside the shell formed by the three, which can accommodate the push rod 200, the moving contact 300, the static contact Head 400 and other parts. On the right side of the coil bobbin 120 , a first receiving portion is disposed around the upper casing 130 , whic...

Embodiment 2

[0067] The structure of the travel switch in this embodiment is basically the same as that in Embodiment 1, and the structure and function of the same parts will not be repeated, but the following differences will be described emphatically:

[0068] 1. In the first embodiment, the sealing ring surface and the flange of the casing 100 are arranged on the bobbin, but in this embodiment, the first receiving part is not arranged on the bobbin 120a. The upper casing 130a is provided with a sealing ring surface 132a and a flange 133a for realizing sealing connection with the protective cover 500a.

[0069] 2. In addition to the lip 510a and the first opening 540a surrounded by the lip 510a, the protective cover 500a has a second opening 550a, and the second opening 550a is surrounded by the lip 530a.

[0070] 3. The wall body 520a of the protective cover 500a is corrugated, and the corrugated wall body 520a can cause the protective cover 500a to deform at the crests and troughs when...

Embodiment 3

[0075] This embodiment has basically the same structure as the travel switch in Embodiment 2, and the structure and function of the same part will not be repeated, but the following differences will be described emphatically:

[0076] 1. There is no flange on the side of the sealing ring surface 132b of the upper housing 130b for positioning.

[0077] 2. The opening 540b where the protective cover 500b connects with the sealing ring surface 132b does not have a lip.

[0078] 3. The wall 520b of the protective cover 500b is a smooth wall without corrugation.

[0079] Wherein, the inner diameter of the opening 540b of the protective cover 500b is smaller than or equal to the diameter of the sealing ring surface 132b on the upper casing 130b, and can form a seamless connection with the sealing ring surface 132b. At the same time, the opening 540b and the sealing ring surface can be strengthened and fixed by bonding; or the opening 540b of the protective cover 500b can be tighten...

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PUM

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Abstract

The present invention relates to an electromagnetic coil assembly, comprising a bobbin, a cover and a top rod, wherein: the bobbin has a hollow structure with an open end, and the cover closes the open end of the bobbin, so that the The coil bobbin and the cover constitute a housing for accommodating the ejector rod; the ejector pin has a first end extending outwardly through an opening provided on the housing along its axis direction, and the ejector pin The ejector rod is arranged to reciprocate in the housing along its axis direction, so that the movable contact provided on the ejector rod contacts and separates from the static contact provided in the housing; the electromagnetic coil The assembly also includes a flexible shield having a first opening sealingly connected to the exterior of the housing such that the flexible shield at least partially closes the first end to allow the housing Said openings on the fuselage are isolated from the external environment.

Description

technical field [0001] The invention relates to the technical field of low-voltage switching appliances, in particular to an electromagnetic coil assembly for low-voltage switching appliances. Background technique [0002] In low-voltage switchgear such as contactors, electromagnetic coil assemblies are commonly used components. The contactor can frequently switch on or off the AC and DC main circuit, and has a control loop inside it for controlling the main circuit to be switched on and off. For example, in a widely used contactor product, there is a control loop for controlling the main contacts to be turned on and off, and the power consumption of the control loop itself constitutes the power consumption of the contactor. In order to reduce power consumption, the control loop uses an energy-saving coil, which includes a start coil and a run coil. The starting coil has a small resistance, can generate a large current and magnetic force, and thus has a large power consump...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/44
CPCH01H50/44
Inventor 孟令乾汪从礼张明亮杨鼎臣
Owner BEIJING PEOPLES ELECTRIC PLANT