Miniature electromagnetic valve and miniature pneumatic system

Abstract

The invention discloses a miniature electromagnetic valve. The valve is used for pneumatic transmission and comprises a valve seat, a permanent magnet and a coil. The valve seat comprises a cylindrical part, an inlet part and an outlet part, wherein the interior of the cylindrical part, the interior of the inlet part and the interior of the outlet part communicate with one another; the permanent magnet is movably placed inside the cylindrical part and blocks a communication port communicating with the inlet part and the outlet part, under the action of force, the position of the permanent magnet can be changed so as to change the blocking condition; and the coil is wound on the outer side wall of the cylindrical part and is connected to an external circuit during working, a magnetic fieldis formed inside the cylindrical part after the coil is electrified, and a magnetic field direction of the permanent magnet is parallel to a magnetic field direction generated by the coil. By adjusting a current of the coil, the magnitude and direction of magnetic field force borne by the permanent magnet can be controlled, and then movement of the permanent magnet is controlled. The invention discloses a miniature pneumatic system.

Description

technical field [0001] The invention relates to the technical field of micro-pneumatic transmission, in particular to a micro-electromagnetic valve and a micro-pneumatic system. Background technique [0002] The gas circuit system generally requires multiple flow valves to adjust the air pressure of each channel, so as to ensure that the target end of each gas circuit works under a specific pressure. For small air circuit systems, such as multi-air circuit driven software grippers, tactile actuators, etc., the existing commercial multi-air circuit control solenoid valves are not only large in size and weight, but also have a limited number of channels. The control system takes up more space and weighs more, which is not conducive to integration. Therefore, the multi-air pressure adjustment of the small air system is extremely challenging in terms of space and weight. Contents of the invention [0003] Aiming at the shortcomings of the existing multi-gas path solenoid valv...

AI Technical Summary

Problems solved by technology

For small air circuit systems, such as multi-air circuit driven software grippers, tactile actuators, etc., the existing commercial multi-air circuit control solenoid valves are not only large in size and weight, but also have a limited number of channels. The control system takes up more space and weighs more, which is not conducive to integration. Therefore, the multi-air pressure adjustment of the small air system is extremely challenging in terms of space and weight

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