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Brushless direct-drive linear servo actuator

A linear actuator and direct drive technology, applied in the direction of electromechanical devices, electrical components, magnetic circuit static parts, etc., can solve the problem that the application environment cannot guarantee reliability and life, cannot meet high reliability, high precision and low cost, The motor cannot realize stroke displacement feedback control and other problems, so as to achieve the effects of simple and reliable processing and assembly, improved system bearing capacity, and low manufacturing and use costs

Pending Publication Date: 2020-12-25
SUZHOU FUGENA ELECTROMECHANICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a structure has a complex mechanism, large volume, and high manufacturing cost. It cannot guarantee reliability and life for harsh application environmental conditions, and the motor cannot realize stroke displacement feedback control.
Therefore, it cannot meet the above-mentioned application needs of high reliability, high precision and low cost.

Method used

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  • Brushless direct-drive linear servo actuator
  • Brushless direct-drive linear servo actuator
  • Brushless direct-drive linear servo actuator

Examples

Experimental program
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specific Embodiment approach

[0036] Figure 5 It is the B-B plane sectional view of the brushless direct-drive linear servo actuator of the first embodiment of the present invention. The specific implementation method is as follows: two groups of armatures are integrally covered by the shell 13 to form a solid integrated structure. The mover chamber 131 and the output hole 132 for extending the output end 23 are formed in the shell 13. The two sides of the mover 2 are connected to the mover. The sub-cavity 131 cooperates to ensure that the mover 2 is installed and positioned on the mirror image symmetrical center plane 16 of the stator 1 , so that there is a uniform air gap 5 between the mover 2 and the stator pole pieces 102 on both sides. The mover 2 includes a mover frame 21 and a magnetic steel 22. The mover frame 21 is extended to form an output end 23, which extends out of the actuator through the output hole 132 for connection with the driven mechanism. The magnetic steel 22 has two pairs of magne...

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Abstract

The invention provides a brushless direct-drive linear servo actuator which comprises a stator, a rotor and a shell, the stator is a pair of armatures arranged on the two sides of the rotor in a mirroring mode, the shell integrally covers the stator in a sealing mode, a rotor cavity is formed in the rotor, and the rotor is provided with an output end extending out of the shell and can move linearly in the direction of the output end. A displacement signal emitter is arranged on one side of the rotor, and a signal receiver is arranged in a cover cap arranged outside the shell on the side and used for detecting displacement signals of the rotor emitter. The actuator has the characteristics of high reliability, high precision and low cost.

Description

technical field [0001] The invention relates to a brushless direct-drive linear servo actuator, which belongs to the field of brushless motors, in particular to a brushless direct-drive linear servo actuator with integrally sealed armature stator, moving magnetic steel and position feedback. Background technique [0002] In the field of intake and exhaust applications of internal combustion engines, the continuous upgrading of emission regulations requires further precise, rapid and reliable control of fuel consumption and combustion emissions, such as the use of exhaust gas recirculation valves, electronically adjustable turbocharging technology, etc. to adjust and control the engine. These adjustment functions require the use of actuators that can withstand high temperature, vibration, corrosion, high precision, high reliability, and long life. At the same time, large-scale batch applications are very sensitive to manufacturing costs. Due to the wide application of rotary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/02H02K16/00H02K29/06H02K1/12H02K9/22H02K5/04
CPCH02K41/02H02K16/00H02K29/06H02K1/12H02K9/22H02K5/04H02K11/215H02K33/16H02K11/21H02K41/031
Inventor 不公告发明人
Owner SUZHOU FUGENA ELECTROMECHANICAL CO LTD
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