Electronic expansion valve control signal detection device and detection system

Abstract

The invention discloses an electronic expansion valve control signal detection device and system, and relates to the technical field of electronic expansion valve control signal detection devices, in particular to a device body and an anti-interference assembly, the left side of the device body is connected with an acquisition plug through a main wire, and the anti-interference assembly is arranged outside the main wire. The anti-interference assembly comprises a bearing, a wave-absorbing sponge, a filling strip, plasticine and magnetic powder, the right side of the bearing is connected with the wave-absorbing sponge, the filling strip is filled with the plasticine, the plasticine is internally provided with the magnetic powder, and the left end of the acquisition plug is in threaded connection with an extension plug. According to the electronic expansion valve control signal detection device and detection system, the electronic expansion valve is wrapped by the wave-absorbing sponge, so that external electromagnetic signals cannot interfere pulse signals during signal acquisition, the detection accuracy is improved, and at the moment, the filling strips are tightly closed and well attached to the surface of a pipeline connected with the electronic expansion valve; and gaps are prevented.

Description

technical field [0001] The invention relates to the technical field of an electronic expansion valve control signal detection device, in particular to an electronic expansion valve control signal detection device and a detection system. Background technique [0002] The electronic expansion valve uses the electrical signal generated by the adjusted parameters to control the voltage or current applied to the expansion valve to achieve the purpose of adjusting the liquid supply. The electronic expansion valve needs to use the electronic expansion valve in the experimental development, installation and maintenance stages. The control signal detection device detects the action of the electronic expansion valve, that is, the number of pulse steps. Usually, the sampling pin of the control signal detection device is inserted into the interface of the electronic expansion valve to collect pulse signals and analyze them. [0003] The existing electronic expansion valve control signal...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides an electronic expansion valve control signal detection device and a detection system, which solves the problem that the existing electronic expansion valve control signal detection device lacks a structure for external signal interference in the background art, resulting in The electronic expansion valve control signal detection device is easily interfered by external signals when collecting pulse signals, which leads to errors in the collected signals

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