一种用于电子膨胀阀的新型降噪结构

Abstract

本申请涉及一种用于电子膨胀阀的新型降噪结构，包括阀座，所述阀座的圆周壁上开设有贯通的安装孔，安装孔处安装有空心的衬垫；所述衬垫包括固设在阀座内腔的限位板和从安装孔延伸至阀座外部的接头部，所述限位板与接头部固定连接，所述接头部上连接有连接管；本实用新型在阀座与连接管之间固定设置衬垫，可避免连接管的端部延伸至阀座内腔以形成凸环结构，有利于流体在通过时降低噪音的问题，并且通过衬垫将阀座与连接管进行连接，使得连接管与衬垫具有更大的接触面积，从而提高连接管在阀座上的安装稳固性，延长其使用寿命。

Claims

1. A new noise reduction structure for electronic expansion valves, characterized by: Includes a valve seat (1), on which a through mounting hole (101) is provided on the circumferential wall, and a hollow gasket (2) is installed at the mounting hole (101). The gasket (2) includes a limiting plate (201) fixed in the inner cavity of the valve seat (1) and a connector (202) extending from the mounting hole (101) to the outside of the valve seat (1). The limiting plate (201) is fixedly connected to the connector (202), and a connecting pipe (3) is connected to the connector (202).

2. A new noise reduction structure for electronic expansion valves according to claim 1, characterized in that, The connecting pipe (3) is sleeved on the outside of the joint (202), and the end of the connecting pipe (3) abuts against the outer wall of the valve seat (1). The valve seat (1), the gasket (2) and the connecting pipe (3) are fixed by welding.

3. A new noise reduction structure for electronic expansion valves according to claim 1, characterized in that, The outer surface (2011) of the limiting plate (201) of the gasket (2) is an arc-shaped structure, which fits tightly against the arc-shaped inner wall of the valve seat (1).

4. The novel noise reduction structure for an electronic expansion valve according to claim 1, characterized in that, The inner surface (2022) of the limiting plate (201) of the pad (2) is an arc-shaped structure.

5. A new noise reduction structure for electronic expansion valves according to claim 1, characterized in that, The limiting plate (201) and the joint (202) are integrally formed or fixedly connected by welding.

6. A novel noise reduction structure for an electronic expansion valve according to claim 1, characterized in that, The connector (202) has a cylindrical structure.

7. The novel noise reduction structure for electronic expansion valve according to claim 1, characterized in that, The outer wall of the connector (202) is uniformly provided with grooves (2021) along its axial direction. The inner wall of the mounting hole (101) of the valve seat (1) is uniformly provided with protrusions (102) that match the grooves (2021). The protrusions (102) are placed in the grooves (2021).

8. A new noise reduction structure for electronic expansion valves according to claim 1, characterized in that, The outer contour of the limiting plate (201) is rectangular, circular or elliptical. When it is rectangular, the corners of the limiting plate (201) are rounded.

9. A new noise reduction structure for electronic expansion valve according to claim 1, characterized in that, The valve seat (1) is a thin-walled part formed by integral stamping.

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