公开(公告)号：EP3098494A1

公开(公告)日：2016-11-30

申请号：EP15737429.9

申请日：2015-01-20

申请人： Zhejiang Sanhua Co. Ltd.

发明人： LV, Ming ,  WEI, Xianrang

IPC分类号： F16K31/50

CPC分类号： F16K31/047 ,  F16K31/508

摘要： A direct-action-type electrically-operated valve comprises a valve base (30) provided with a valve cavity, a motor (10) disposed on the upper end the valve base, and a screw rod (312). The screw rod (312) is fitted and connected to a nut (41) by means of threads. The nut is connected to a spool (42). Axial positions of a rotor (12) of the motor and the valve base are relatively fixed. The upper end of the screw rod is fixedly connected to the rotor. Driven by the nut, the spool moves along the axial direction of the valve cavity to open or close a valve opening (30a) disposed on the valve base. The spool is a tubular structure provided with a balancing channel, and a seal piece for dividing the valve cavity into two independent cavities is disposed on the periphery of the spool. A gear system is removed from the electrically-operated valve, so that unnecessary rotations are reduced, friction loss is reduced, and a response is direct, reliable and sensitive; the axial positions of the rotor and the valve base are relatively fixed, that is, the relative fixation of the rotor and a coil element during the working enables driving force to be stable; and obviously, for valve openings with a same size, the size of the motor using the valve opening is smaller than that in the background technology, which can meet requirements of miniaturization and large capacity.

摘要翻译： 直动式电动阀包括设置有阀腔的阀座（30），设置在阀底部上端的马达（10）和螺杆（312）。 螺杆（312）通过螺纹装配并连接到螺母（41）。 螺母连接到卷轴（42）。 马达和阀座的转子（12）的轴向位置相对固定。 螺杆的上端固定地连接到转子上。 由螺母驱动，阀芯沿着阀腔的轴向移动以打开或关闭设置在阀座上的阀开口（30a）。 阀芯是设置有平衡通道的管状结构，并且用于将阀腔分成两个独立腔的密封件设置在阀芯的周边上。 齿轮系从电动阀上拆下，减少了不必要的转动，降低了摩擦损失，响应直接，可靠，敏感; 转子和阀座的轴向位置相对固定，即在工作期间转子和线圈元件的相对固定使驱动力稳定; 显然，对于具有相同尺寸的阀开口，使用阀开口的电动机的尺寸小于背景技术的尺寸，这可以满足小型化和大容量的要求。

公开(公告)号：EP2963321A1

公开(公告)日：2016-01-06

申请号：EP14756803.4

申请日：2014-02-21

申请人： Zhejiang Sanhua Co., Ltd.

发明人： LV, Ming ,  WEI, Xianrang

IPC分类号： F16K31/04 ,  F25B41/06 ,  F16K27/10

CPC分类号： F16K31/04 ,  F16K27/10 ,  F25B41/062 ,  F25B2341/0653 ,  H01R13/521 ,  Y02B30/72

摘要： Disclosed are an electronic expansion valve and a connection assembly therefor. The connection assembly (2) comprises a connection seat (21) connected in a sealing manner to an outer housing (1) of the electronic expansion valve and contact pins (22) used for connecting an external control member. The outer housing (1) has a valve chamber with an in-built electrical motor (3). The connection seat (21) has a sealed chamber (211) communicating with the valve chamber, and an insulation sleeve (23) is sheathed in the sealed chamber (211). The insulation sleeve (23) is provided with mounting stations (231) arranged to correspond to terminals (4) of the electrical motor (3), each mounting station (231) being spaced apart in an insulated manner. The insulation sleeve (23) is also provided with connecting holes (232) for the contact pins (22) to pass through. One end of the contact pin (22) passes through the connecting hole (232) and connects to the terminal (4), and the other end thereof extends out of the sealed chamber (211) to form a connecting end used for connecting to an external control member. The insulation sleeve (23) is provided with a mounting station (231) for each terminal (4), thereby separating each terminal (4), preventing short-circuits caused by contact impact between the terminals (4), enabling safer and more reliable use.

摘要翻译： 公开了一种电子膨胀阀及其连接组件。 连接组件（2）包括以密封方式连接到电子膨胀阀的外壳（1）和用于连接外部控制构件的接触销（22）的连接座（21）。 外壳（1）具有带有内置电动机（3）的阀室。 连接座（21）具有与阀室连通的密封室（211），绝缘套管（23）被套在密封室（211）中。 绝缘套筒（23）设置有与电动机（3）的端子（4）相对配置的安装台（231），每个安装台（231）以绝缘方式间隔开。 绝缘套管（23）还设置有用于接触销（22）穿过的连接孔（232）。 接触销（22）的一端通过连接孔（232）并与端子（4）连接，另一端延伸出密封室（211），形成连接端 外部控制构件。 绝缘套筒（23）为每个端子（4）设置有安装台（231），从而分离每个端子（4），防止由端子（4）之间的接触冲击引起的短路，从而更安全可靠 使用。

公开(公告)号：EP2725270A1

公开(公告)日：2014-04-30

申请号：EP12805233.9

申请日：2012-06-26

申请人： Zhejiang Sanhua Co., Ltd.

发明人： LV, Ming ,  WEI, Xianrang ,  WANG, Qingyong

IPC分类号： F16K3/30 ,  F16K31/50 ,  F16K31/53

CPC分类号： F16K31/047 ,  F16K31/504 ,  F16K31/508 ,  F16K31/53 ,  F25B41/062 ,  F25B2341/0653 ,  Y02B30/72

摘要： Disclosed in the present invention is a flow regulating valve comprises a valve seat (1) and a casing (2). A motor (21) provided inside the casing (2) is connected to a screw rod (3) through the output shaft of the motor. The screw rod is connected to a screw nut (4) connecting with a valve rod (5) and the inner part of the valve rod (5) is provided with a mounting groove (51). The screw nut (4) is in clearance fit with the mounting groove (51) along the radical direction, and the inner wall of the mounting groove (51) is provided with an annular limiting groove (52). A limiting element (53) provided in the annular limiting groove (52) limits the position along the axial direction of the screw nut (4) and is in clearance fit with the outside of the screw nut. On one hand, the configuration design of the flow regulating valve is able to eliminate the coaxial degree error between the screw rod and the screw nut generated during the processing and assembling of components and parts, on the other hand, it is able to improve the reliability of the axial limitation of the screw nut.

摘要翻译： 在本发明中公开了一种流量调节阀，其包括阀座（1）和壳体（2）。 设置在壳体（2）内的马达（21）通过马达的输出轴与螺杆（3）连接。 螺杆连接到与阀杆（5）连接的螺母（4），阀杆（5）的内部设有安装槽（51）。 螺母（4）沿着自由度方向与安装槽（51）间隙配合，并且安装槽（51）的内壁设置有环形限制槽（52）。 设置在环形限制槽（52）中的限制元件（53）限制了沿着螺母（4）的轴向的位置，并且与螺母的外侧间隙配合。 一方面，流量调节阀的配置设计能够消除在组件和部件的加工和组装期间产生的螺杆和螺母之间的同心度误差，另一方面，能够改善 螺母的轴向限制的可靠性。

公开(公告)号：EP3023679A1

公开(公告)日：2016-05-25

申请号：EP13889373.0

申请日：2013-09-11

申请人： Zhejiang Sanhua Co. Ltd.

发明人： LV, Ming ,  WEI, Xianrang

IPC分类号： F16K27/10

CPC分类号： F16K31/04 ,  B23K26/21 ,  B23K26/282 ,  B23K2101/04 ,  F16K1/10 ,  F16K1/34 ,  F16K27/102 ,  F25B41/062 ,  F25B2341/0653 ,  Y02B30/72

摘要： Disclosed is an electronic expansion valve, comprising a shell component (3) and a valve seat assembly, wherein the valve seat assembly comprises a first connection pipe (24) and a second connection pipe (23) which are located on the same straight line; the valve seat assembly forms a main valve chamber, the main valve chamber makes an included angle of an acute angle with the first connection pipe, the valve seat assembly is of an integrated structure and is welded and fixed to the shell component, and there is a preset distance between the radial extension line in the welding position of the two and the first connection pipe. When a valve body relatively rotates to perform welding, welding can be performed smoothly without being subject to the obstruction of the first connection pipe, to form an integrated valve body. Further disclosed is a manufacturing method for the electronic expansion valve. The electronic expansion valve is of an integrated structure, so that the leakage rate of the product can be reduced, and the production cost of the product can also be effectively controlled without increasing the thickness and quality of material.