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Electronic expansion valve

An electronic expansion valve, valve needle technology, applied in the direction of lift valve, valve device, valve details, etc., can solve the problem of inaccurate flow control of electronic expansion valve, and achieve the effect of avoiding shaking and improving accuracy

Active Publication Date: 2022-05-13
DUNAN ENVIRONMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an electronic expansion valve to solve the problem of inaccurate flow control of the electronic expansion valve in the prior art

Method used

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  • Electronic expansion valve
  • Electronic expansion valve
  • Electronic expansion valve

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] Such as figure 2 As shown, Embodiment 1 of the present invention provides an electronic expansion valve, which includes: a nut part 10 , a valve needle part, a valve seat 40 and a guide 50 . Wherein, the nut part 10 is provided with a connection hole, and the connection hole includes a throu...

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Abstract

The invention provides an electronic expansion valve. The electronic expansion valve includes: a nut part with a connection hole, the connection hole includes a through hole segment and a first thread segment; The needle assembly is fixedly connected, the other end of the screw rod passes through the first threaded segment and is located in the through hole segment, the screw rod and the through hole segment are clearance fit, the screw rod is guided through the through hole segment, the middle part of the screw rod has a second threaded segment, the first The threaded section is threadedly connected with the second threaded section; the valve seat, the end of the valve needle assembly away from the screw rod is movably arranged in the valve seat; the guide is arranged between the valve seat and the valve needle assembly, and the guide is used to guide the valve The needle assembly moves. Through the technical solution provided by the application, the problem of inaccurate flow control of the electronic expansion valve in the prior art can be solved.

Description

technical field [0001] The present invention relates to the technical field of electronic expansion valves, in particular to an electronic expansion valve. Background technique [0002] Such as figure 1 As shown, the current electronic expansion valve includes a sleeve 1 , a rotor 2 , a screw 3 , a nut part 4 , a valve needle part 5 and a valve seat 6 . Wherein, the screw rod 3 is threadedly connected with the nut part 4, and the screw rod 3 is set on the nut part 4, the rotor 2 is sleeved on the nut part 4, and is fixedly connected with the screw rod 3, and the external coil can drive the rotor 2 under the energized state. The screw 3 moves up and down, and the lower end of the screw 3 is connected with the valve needle part 5, and the valve needle part 5 is lifted and lowered by the screw rod 3 to control the fluid flow. [0003] In the actual operation process of the existing electronic expansion valve, because the screw rod 3 is only threaded with the nut part 4, there...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/32F16K1/38F16K27/08F16K31/50F16K31/06F25B41/345F25B41/34
CPCF16K1/32F16K1/385F16K27/08F16K31/50F16K31/0655F16K31/0675F25B41/34F25B41/31Y02B30/70
Inventor 王鑫楠林元阳康志军
Owner DUNAN ENVIRONMENT TECH