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Contactor, contactor assembly and control circuit

A technology for controlling circuits and contactors, applied in circuits, relays, electrical components, etc., can solve the problems of being easily interfered by magnetic lines of force, the cost of contactors and the high cost of product maintenance, avoiding electromagnetic interference, expanding physical limitations, sensing Measure the exact effect

Inactive Publication Date: 2016-02-10
TYCO ELECTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods are simple for customers to use, the cost of contactors and product maintenance costs are relatively high, and the magnetic Hall switch is also susceptible to interference from magnetic lines of force when the relay or contactor conducts a large current, which cannot meet the requirements of contactor control. need

Method used

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  • Contactor, contactor assembly and control circuit
  • Contactor, contactor assembly and control circuit
  • Contactor, contactor assembly and control circuit

Examples

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Embodiment Construction

[0041] Reference will now be made to specific embodiments, examples of which are illustrated in the accompanying drawings. In the detailed description of particular embodiments, directional terms such as "top", "bottom", "above", "below", "left", "right", etc. are used with reference to the directions described in the drawings. Since components of embodiments of the present invention may be arranged in many different orientations, directional terms are used for purposes of illustration and are by no means limiting. Wherever possible, the same or similar numbers and symbols will be used throughout the drawings to refer to the same or like parts.

[0042] figure 1 It is a schematic diagram of the circuit structure of the contactor 20 in the first embodiment of the present invention.

[0043] Such as figure 1 As shown, the contactor (or relay) 20 includes a control circuit 10 connected to the contactor 20 . The contactor 20 has a contactor housing 21 (see Figure 3A-3B ), th...

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PUM

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Abstract

The invention discloses a contactor, a contactor assembly and a control circuit. The contactor comprises a switching mechanism, an iron core and an iron core position measurement circuit, wherein the iron core position measurement circuit comprises an excitation signal generating circuit and a sensing circuit; the sensing circuit judges the position of the iron core according to different inductance values; the control circuit is used for controlling an operation of the contactor; the contactor comprises the switching mechanism and the iron core; a coil surrounds the iron core to drive the iron core to carry out a back-and-forth movement, so as to connect or disconnect a work loop; and the control circuit comprises a work control circuit, the iron core position measurement circuit, the controller and the like. According to the control circuit disclosed by the invention, the position of the iron core is measured by measuring the variation of inductances by the characteristic that the coil generates different inductances due to different positions of the iron core in the coil.

Description

technical field [0001] The present invention relates to contactors, contactor assemblies and control circuits, and more particularly to contactors and control circuits for sensing changes in coil inductance in contactors as a function of core position. Background technique [0002] Contactors or relays are usually used to switch or control working circuits. For example, the contactor is provided with a coil and dynamic and static contacts. When current passes through the coil of the contactor, a magnetic field can be generated to close the dynamic and static contacts to control the electrical appliances of the load. [0003] Due to frequent switching on and off, the current conduction contacts of high-voltage and high-current contactors or relays will cause welding adhesion due to reasons such as overcurrent, high-temperature arc damage, or long-term application aging, so that the moving contacts of contactors or relays Ineffective out of control. For low voltage relays o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H47/02
Inventor 周啸
Owner TYCO ELECTRONICS (SHANGHAI) CO LTD
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