Mute electronic expansion valve

An electronic expansion valve and silent technology, applied in valve details, valve devices, valve operation/release devices, etc., can solve problems such as large noise, and achieve the effect of reducing pressure fluctuations

Inactive Publication Date: 2017-02-01
ZHEJIANG XINSANRONG REFRIGERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect of the existing electronic expansion valve with high noise during valve opening and closing, and to provide a silent electronic expansion valve with buffer advection, pressure fluctuation reduction, high control precision and good mute effect

Method used

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  • Mute electronic expansion valve
  • Mute electronic expansion valve

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Embodiment Construction

[0010] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0011] Such as figure 1 with figure 2 As shown, the present invention includes a valve housing, a valve stem 10, a valve stem support seat 4 and a valve stem driving mechanism. The inner cavity, the opening of the valve cover 1 and the valve seat 9 are opposite and fixedly connected so that the inner cavity forms a valve cavity. A through hole is set on the wall as an input port, and the input port is connected to the medium input pipe 5. The valve stem driving mechanism includes a coil, a magnetic steel sleeve 3 and a nut sleeve 2, and the nut sleeve 2 is connected by the sleeve body and the transverse direction. The horizontal connection part is fixedly connected to the rear end of the magnetic steel sleeve 3, the sleeve body is located in the inner cavity of the magnetic steel sleeve 3, the magnetic steel sleeve 3 is located in the inner...

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PUM

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Abstract

A mute electronic expansion valve comprises a valve shell, a valve rod, a valve rod supporting seat and a valve rod driving mechanism. The valve rod driving mechanism comprises a coil, a magnetic steel sleeve and a nut sleeve. A valve deck is sleeved with the coil which corresponds to the magnetic steel sleeve and can drive the magnetic steel sleeve to drive the nut sleeve to rotate. The valve rod supporting seat is sequentially divided into a nut sleeve motion supporting part and an installing supporting part in the axial direction. The valve rod is arranged in a central through hole of the valve rod supporting seat in a penetrating mode. The nut sleeve motion supporting part stretches into an inner cavity of the valve deck and is provided with a thread. Rotation and screw-thread fit of the nut sleeve drive the valve rod to move axially. An inner medium temporary storage cavity and an outer medium temporary storage cavity are formed between the installing supporting part and a valve seat, and at least one deflector hole penetrating through the inner medium temporary storage cavity and the outer medium temporary storage cavity is formed. After a medium is input through an input port, the medium is subjected to temporary storage and division of the outer medium temporary storage cavity, temporary storage of the inner medium temporary storage cavity and diameter change of the deflector holes, so that flow direction change, slowing and stabilizing of the medium are achieved, and the mute effect is achieved.

Description

technical field [0001] The invention belongs to the field of valves, and in particular relates to a silent electronic expansion valve with good quiet effect. Background technique [0002] The existing electronic expansion valve is a throttling valve, which is used to change the flow rate of the refrigerant medium in the refrigeration system. Commonly used electronic expansion valves include a valve body, a coil mechanism overlaid on the valve body, a medium input pipe and a medium output pipe connected to the side wall and front end of the valve body. The rear seat cover, the valve hole is arranged at the front end of the valve seat, and the valve hole is blocked or opened by the axially moving valve rod to realize the opening and closing of the electronic expansion valve. Existing electronic expansion valves are noisy during valve opening and closing, and the medium entering the inner cavity of the valve seat from the medium input pipe will directly flush the valve hole, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06F16K47/02F16K47/08F25B41/06F25B41/34
CPCF16K31/0655F16K47/02F16K47/08F25B41/34F25B41/31Y02B30/70
Inventor 张伟荣
Owner ZHEJIANG XINSANRONG REFRIGERATION CO LTD
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