Novel electromagnetic proportional valve

Abstract

The invention relates to a novel electromagnetic proportional valve, comprising a body for arranging a magnetic steel ring, the magnetic steel ring, a movable ring sheathed in the magnetic steel ring, a loop twisted on the movable ring, an inducing control wire on the loop and a central shaft penetrated in the movable ring; wherein both the central shaft and the movable ring are provided with different open pores; the movable ring twisting the loop is driven by a force generated by an electrified loop and magnetic steel cutting; the open pores on the movable ring and the central shaft are linearly changed with the different overlapped areas of the mutual positions, thereby deciding the size of gas flux passed by the opening area. The novel electromagnetic proportional valve avoids the control mode of the original top rod driving membrane to a gas circuit; meanwhile, the electromagnetic proportional valve can better miniaturize the gas circuit due to the better combination with the gas circuit, thus better controlling the noise generated by the gas circuit part.

Description

technical field [0001] The invention relates to a novel electromagnetic proportional valve, in particular to an electromagnetic proportional valve which can be directly installed in an air circuit to complete air circuit control. Background technique [0002] At present, the electromagnetic proportional valve has been widely used as an important part of air circuit control. The structure of the existing electromagnetic proportional valve is to generate a driving force through the cutting motion of the coil and the magnetic steel, thereby driving the ejector rod connected to the coil, and the ejector rod acts on the diaphragm to realize the sealing and exhaust of the air circuit . Different currents are generated by different voltages applied to the coil to realize the change of the force pushing the ejector rod, which can make the air circuit sealed under a certain pressure. If the pressure is higher than this pressure, it can overcome the force exerted by the ejector rod a...

AI Technical Summary

Problems solved by technology

[0004] 1. The realization of the function is finally completed through the ejector rod and the diaphragm. The repeatability is poor, and the deterioration of the gas path, such as the increase of water vapor, will easily lead to data errors. The ejector rod and the diaphragm are always under impact during use. , which may lead to mechanical wear and stress build-up in long-term use

[0005] 2. The realization of the function is realized outside the air circuit through the electromagnetic proportional valve, which cannot be effectively combined with the air circuit. When the product structure is small and the noise needs to be effectively controlled, the existing electromagnetic proportional valve structure is difficult to achieve

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