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Electronic expansion valve with double throttling function

An electronic expansion valve, double throttle technology, applied in the direction of sliding valve, valve details, valve device, etc., can solve the problem of the influence of electronic expansion valve work reliability, and achieve the effect of improving adjustability, compact structure and convenient assembly

Inactive Publication Date: 2008-02-20
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its structure is simple, dynamic response fast, small in size, and its cost is lower than that of the needle-type electronic expansion valve. The load of the cam changes greatly between the maximum flow and the minimum flow, which has a great impact on the reliability of the electronic expansion valve.

Method used

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  • Electronic expansion valve with double throttling function
  • Electronic expansion valve with double throttling function

Examples

Experimental program
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Embodiment Construction

[0033] As shown in Figure 4-9, the electronic expansion valve with double throttling function includes a coil 1 and a valve body connected to it. The valve body includes a sleeve 2, a magnetic rotor 3 placed in the sleeve 2, and a The plastic rotor 4 in the magnetic rotor 3 and the upper and lower end caps 5, 6 welded to the two ends of the sleeve 2 are provided with a central shaft 7 on the plastic rotor 4, and the two ends of the central shaft 7 are respectively positioned on the upper and lower end caps 5, 6, the upper and lower end caps 5, 6 are respectively provided with upper and lower valve ports 8, 9 which deviate from the central axis 7 and have the same diameter.

[0034]A flow regulating cam 10 is respectively arranged on both ends of the plastic rotor 4, and the upper and lower cams have the same shape and opposite directions. The edge profile of the cam used to regulate the flow is composed of three plane progressive spirals (see Figure 7). The angle of rotation ...

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Abstract

The invention relates to a electronic expansion valve for air conditioning, comprising a coil and a valve connected to it. The valve comprises a sleeve, a magnetic rotor arranged in the sleeve, a plastic rotor positioned in the magnetic rotor, and a top / bottom end cover welded on two ends of the sleeve. The invention is characterized in that : on the plastic rotor, a central shaft is arranged, on each cover, a valve port is formed deflecting from the central shaft with same diameter; on each end surface of the plastic rotor, a flow controlling dummy club is arranged with contour line capable of making lift; between the plastic and the end cover, a rotating positioning device is arranged. The invention has advantages as compact conformation, small volume, convenient processing and assembling and low processing cost; and it realizes twice throttling, adjusts the secondary refrigerant flow rate more accurately.

Description

technical field [0001] The invention relates to components for air conditioning, in particular to an electronic expansion valve for regulating refrigerant flow. Background technique [0002] With the improvement of people's living standards, air conditioners have been widely used, but traditional air conditioners are increasingly unable to meet people's needs for environmental protection and energy shortages. Therefore, inverter air conditioners have appeared, which have begun to be favored by consumers. The price of frequency conversion air conditioner is difficult to be accepted by people, because the price of its core components (frequency conversion controller, electronic expansion valve) is still relatively expensive. Electronic expansion valves are mainly used for rapid adjustment of refrigerant flow to achieve rapid cooling (heating), precise temperature control, and energy saving. The working process of the electronic expansion valve is: by continuously detecting th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/04F16K31/02F25B41/04
Inventor 魏先让
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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