Electrodynamic Actuator

An electric actuator and actuator technology, which is applied to electric components, electromechanical devices, electrical components, etc., can solve the problem of not setting a return element, and achieve the effects of small overall size, high cost performance, and easy implementation.
CN104467341AActive Publication Date: 2015-03-25BURKERT WERKE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BURKERT WERKE
Publication Date
2015-03-25

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Abstract

An electrodynamic actuator, in particular for a microvalve or a micropump, includes a magnet arrangement for generating a magnetic field and a control element movable relative to the magnet arrangement. The control element includes an energizable air-core coil (22) which is arranged in the magnetic field and firmly coupled to a coil carrier (20) made from a nonmagnetic material.
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Description

technical field

[0001] The present invention relates to an electric actuator, especially an electric actuator for a micro valve or a micro pump. Background technique

[0002] Electromagnetic actuators are often used in fluid valve technology. In most such actuators, an armature made of magnetic material is moved by means of a magnetic field generated by a coil. Especially when it is desired to miniaturize the actuator, the options for a design that saves space on the one hand and provides sufficient magnetic force on the other hand are limited. This is due to the fact that with smaller coils the obtained magnetic field strength is greatly reduced, or in other words, the maximum possible current is limited.

[0003] In contrast, the magnetic field strength in an electric drive depends on the volume of the permanent magnet employed in the drive, and a reduction in the volume of the permanent magnet has a greater impact on the field strength achievable in the drive than a red...

Claims

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