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    • 1. 发明授权
    • DIRECT-ACTION-TYPE ELECTRICALLY-OPERATED VALVE AND ASSEMBLY METHOD THEREFOR
    • 直动式电动阀及其组装方法
    • EP3098494B1
    • 2018-04-25
    • EP15737429.9
    • 2015-01-20
    • Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd.
    • LV, MingWEI, Xianrang
    • F16K31/50F16K31/04
    • F16K31/047F16K31/508
    • 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.
    • 2. 发明公开
    • REVERSING VALVE AND COOLING SYSTEM HAVING SAME
    • 具有相同的反向阀和冷却系统
    • EP3309432A1
    • 2018-04-18
    • EP16791961.2
    • 2016-04-07
    • Zhejiang Sanhua Climate and Appliance Controls Group Co. Ltd.
    • HUANG, SongyanWANG, Qingyong
    • F16K11/00F16K11/07
    • F25B41/046F16K11/00F16K11/07F25B2313/02741
    • The present invention discloses a reversing value (1000) which includes a pilot valve (1200) and a main valve (1100). The main valve (1100) includes: a valve body (10) with a valve chamber (20), wherein the valve chamber (20) is provided with a valve seat (30) therein, and the valve seat (30) is provided with a plurality of valve ports (40) thereon; a plurality of flow path ports (50) are correspondingly communicated with the plurality of valve ports (40); a sliding valve core (60) matching the valve seat (30). The plurality of valve ports (40) include a first valve port (41), a second valve port (42), a third valve port (43), a fourth valve port (44), and a fifth valve port (45). The plurality of flow path ports (50) include an S port (S), an E port (E), a C port (C), a D1 port (D1), and a D2 port (D2). When the sliding valve core (60) slides to a first preset position, the D1 port (D1) is communicated with the E port (E), and the S port (S) is communicated with the C port (C). When the sliding valve core (60) slides to a second preset position, the D2 port (D2) is communicated with the C port (C), and the S port (S) is communicated with the E port (E). The present invention also discloses a cooling system with the reversing valve (1000). The reversing valve (1000) can effectively solve the problem in the prior art that the pressure of high pressure fluid in a valve chamber of a reversing valve is unstable in the switching process.
    • 本发明公开了一种包括先导阀(1200)和主阀(1100)的换向阀(1000)。 主阀1100包括:具有阀室20的阀体10,阀室20内设有阀座30,阀座30设有 其上有多个阀口(40) 多个流道口(50)与多个阀口(40)对应连通; 与阀座(30)匹配的滑阀芯(60)。 多个阀口40包括第一阀口41,第二阀口42,第三阀口43,第四阀口44和第五阀口45。 多个流路端口50包括S端口S,E端口E,C端口C,D1端口D1,D2端口D2。 当滑阀芯(60)滑动到第一预定位置时,D1口(D1)与E口(E)连通,S口(S)与C口(C)连通。 当滑阀芯(60)滑动到第二预定位置时,D2口(D2)与C口(C)连通,S口(S)与E口(E)连通。 本发明还公开了一种具有换向阀(1000)的冷却系统。 换向阀(1000)可以有效解决现有技术中换向过程中换向阀阀室内高压流体压力不稳定的问题。
    • 3. 发明公开
    • ELECTRONIC EXPANSION VALVE
    • ELEKTRONISCHES EXPANSIONSVENTIL
    • EP2933540A1
    • 2015-10-21
    • EP13862253.5
    • 2013-05-29
    • Zhejiang Sanhua Co., Ltd.
    • LV, Ming
    • F16K31/50F16K31/04F16K31/53
    • F16K31/02F16K1/54F16K27/02F16K31/047F16K31/53
    • Provided is an electronic expansion valve, wherein a valve cavity thereof is provided with a valve stem (24) therein, the valve stem (24) is axially movable along an axial through-hole of a valve seat of the electronic expansion valve to open or close a valve opening (251) provided in the valve seat. The valve stem (24) is provided with an axial through-hole in communication with the valve opening (251), and the axial through-hole side wall of the valve seat and the valve stem (24) are sealed. An end face of the valve stem (24) comprises a sealing face in sealing contact with an end face of the valve seat positioned at the valve opening (251), the sealing face comprises a first sealing face for withstanding an interface refrigerant action force and a second sealing face for withstanding a further interface refrigerant action force, and the effective pressure area of the first sealing face is equal to that of the second sealing face. The force acted on the valve stem (24) is only equal to the sum of the forces acted on the first sealing face and the second sealing face, since the two effective pressure areas are equal, regardless of the refrigerant coming from which interface, the valve stem (24) withstands an equal force, thus balancing the ability to open and close the valve. Further provided is an electronic expansion valve in line contact with the valve seat in a sealing manner, wherein the upper and lower effective pressure areas acted on the valve stem (24) by the refrigerant of an interface are equal, and the upper and lower effective pressure areas acted on the valve stem by the refrigerant of a further interface are equal.
    • 提供一种电子膨胀阀,其中其阀腔在其中设置有阀杆(24),阀杆(24)可沿着电子膨胀阀的阀座的轴向通孔轴向移动以打开或 关闭设置在阀座中的阀开口(251)。 阀杆(24)设置有与阀开口(251)连通的轴向通孔,并且阀座的轴向通孔侧壁和阀杆(24)被密封。 阀杆(24)的端面包括与定位在阀开口(251)处的阀座的端面密封接触的密封面,密封面包括用于承受界面制冷剂作用力的第一密封面和 用于承受另一界面制冷剂作用力的第二密封面,并且所述第一密封面的有效压力面积等于所述第二密封面的有效压力面积。 作用在阀杆(24)上的力仅等于作用在第一密封面和第二密封面上的力的总和,因为两个有效压力面积相等,而与来自哪个界面的制冷剂无关 阀杆(24)能够承受相等的力,从而平衡打开和关闭阀门的能力。 还提供了一种以密封方式与阀座直线接触的电子膨胀阀,其中由界面的制冷剂作用在阀杆(24)上的上下有效压力区域是相等的,并且上下有效 通过另一界面的制冷剂作用在阀杆上的压力区域相等。
    • 4. 发明公开
    • THERMAL EXPANSION VALVE
    • 热力膨胀阀
    • EP2703751A4
    • 2014-10-15
    • EP12776448
    • 2012-04-27
    • ZHEJIANG SANHUA CO LTD
    • LIU CHANGQING
    • F25B41/06F25B41/04
    • F25B41/062F25B2341/06F25B2341/064F25B2600/21
    • A thermal expansion valve comprises a valve body (1) and a valve core member (2). The valve body (1) is provided with a first connecting chamber (11), a lower cavity (35) with a transmission member (21) built in, and a first sealing member for separating the first connecting chamber (11) and the lower cavity (35). A fifth pressure-bearing surface (S5) and a sixth pressure-bearing surface (S6), pressed by a cold medium in the first connecting chamber (11) in opposite directions, are disposed on a side wall of the valve core member (2). The first sealing member comprises a first flexible sealing element, disposed between the transmission member (21) and an upper end portion of the valve core member (2) and having a first edge portion (41) connected to the valve body (1) in a sealing manner. A sum of an effective stress area of a first pressure-bearing surface (S1) of the first flexible sealing element and a stress area of the fifth pressure-bearing surface (S5) is substantially equal to a sum of an effective stress area of a third pressure-bearing surface (S3) of the upper end portion of the valve core member (2) and a stress area of the sixth pressure-bearing surface (S6). Through the design of the structure of the thermal expansion valve, in an aspect, reliability of sealing between the valve body (1) and the upper end portion of the valve core member (2) can be ensured, sensitivity of the valve is improved, and difficulty of manufacturing the valve body (1) and the valve core member (2) can be reduced; and in another aspect, pressure influence caused by the cold medium in the first connecting chamber (11) on the movement of the valve core member (21) can be eliminated.
    • 5. 发明公开
    • FLOW REGULATING VALVE
    • STROMREGELVENTIL
    • EP2725270A1
    • 2014-04-30
    • EP12805233.9
    • 2012-06-26
    • Zhejiang Sanhua Co., Ltd.
    • LV, MingWEI, XianrangWANG, Qingyong
    • F16K3/30F16K31/50F16K31/53
    • F16K31/047F16K31/504F16K31/508F16K31/53F25B41/062F25B2341/0653Y02B30/72
    • 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.
    • 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。
    • 6. 发明公开
    • REFRIGERATING SYSTEM AND THERMOSTATIC EXPANSION VALVE THEREOF
    • 冷却系统和热力膨胀阀THEREFOR
    • EP2664869A4
    • 2014-07-09
    • EP12734051
    • 2012-01-12
    • ZHEJIANG SANHUA CO LTD
    • LIU CHANGQING
    • F25B41/06
    • F25B41/043F25B41/062F25B2341/063F25B2341/0683
    • Disclosed are a thermostatic expansion valve and a refrigerating system comprising the thermostatic expansion valve. The thermostatic expansion valve comprises a valve body (1) arranged with an air box on the top, and the inner chamber of the air box is divided into an upper chamber (22) and a lower chamber (23) by a diaphragm (21). Within the inner chamber of the valve body (1) there are provided a valve plug component (3) and a valve port (11) matched with the valve plug component (3). The inner chamber of the valve body (1) is divided into a first interface chamber (12) and a second interface chamber (13) by a sealing line or sealing face (31) between the valve port (11) and the valve plug component (3). At the lower end part of the valve body (1) there is provided a balance chamber (14) to balance the valve plug component (3). The upper end part of the valve plug component (3) is arranged within the lower chamber (23) and the lower end part thereof is arranged within the balance chamber (14) of the valve body (1). The balance chamber (14) is in communication with the lower chamber (23), and the balance chamber (14) is in sealed isolation from both the first interface chamber (12) and the second interface chamber (13). The structure of the thermostatic expansion valve is capable of reducing the systematic pressure difference to which the valve plug component (3) is subjected, such that the regulating precision of the valve plug component (3) is improved.
    • 7. 发明公开
    • ELECTRONIC EXPANSION VALVE
    • 电子膨胀阀
    • EP2725269A1
    • 2014-04-30
    • EP12804061.5
    • 2012-06-26
    • Zhejiang Sanhua Co., Ltd.
    • LV, MingCHEN, Yuzhong
    • F16K3/02F16K25/00F25B41/06
    • F16K31/047F16K3/246F16K3/34F16K25/005F16K31/04F16K37/0058F25B41/062F25B2341/0653Y02B30/72
    • Disclosed in the present invention is an electronic expansion valve, which comprises a valve seat assembly (7) and a valve housing assembly (5) connected to the valve seat assembly (7). A valve stem assembly (6) and a valve port (121) are disposed in the chamber of the valve seat assembly (7), and an electrical motor (51) is situated in the chamber of the valve housing assembly (5). The electrical motor (51) drives the valve stem assembly (6) to move along an axial direction through a gear system (52) so as to adjust the flow rate of the fluid flowing through the valve port (121). The valve seat assembly (7) has a split structure, which comprises a valve seat (1) and a cover (9) connected to the valve seat (1) and to the valve housing assembly (5). Amounting surface (13) is formed on the outer side of the valve seat (1) and a sight glass (8) is connected thereon. The structure of the expansion valve enables the sight glass (8) to be easily attached to the valve seat assembly (7).
    • 本发明公开了一种电子膨胀阀,其包括阀座组件(7)和连接到阀座组件(7)的阀壳体组件(5)。 阀座组件(6)和阀口(121)设置在阀座组件(7)的腔室中,电动马达(51)位于阀座组件(5)的腔室中。 电机(51)带动阀杆组件(6)沿轴向移动通过齿轮系统(52),以调节流过阀口(121)的流体的流量。 阀座组件(7)具有分体式结构,其包括阀座(1)和连接到阀座(1)和阀壳体组件(5)的盖(9)。 在阀座(1)的外侧形成有量表面(13),并在其上连接观察镜(8)。 膨胀阀的结构使观察镜(8)能够容易地连接到阀座组件(7)上。
    • 9. 发明公开
    • A normally open solenoid valve and an assembling method thereof
    • 正常的geöffnetesMagnetventil和Herstellungsverfahrendafür
    • EP2267348A1
    • 2010-12-29
    • EP10167069.3
    • 2010-06-23
    • Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd.
    • Chen, Bin
    • F16K31/40
    • F16K31/404
    • A normally open solenoid valve and an assembling method thereof are provided. The normally open solenoid valve includes a valve body component (2) and a coil component (1). A fixed iron core assembly (25), a movable iron core component (22) being axially movable under an electromagnetic force and a seal component (257')are disposed in a sleeve of the valve body component (2). The seal component abuts against or separates from a valve port so as to open or close the solenoid valve. The fixed iron core assembly (25) includes a fixed iron core component (251) and a transmission component being axially slidable relative to the fixed iron core component (251). The seal component is disposed at a lower end of the transmission component, and an upper end of the transmission component directly or indirectly contacts with the movable iron core component, thereby driving the seal component to abut against or separate from the valve port. The design of the structure of the present invention is reasonable and reliable, and the whole assembling is more convenient, and the difficulty for machining is reduced. Moreover, a standardization design of the fixed iron core assembly may be realized so as to reduce the controlling steps during assembling, which substantially reduces the errors in assembling.
    • 提供常开电磁阀及其组装方法。 常开电磁阀包括阀体部件(2)和线圈部件(1)。 固定铁芯组件(25),可在电磁力下轴向移动的可动铁芯部件(22)和密封部件(257')设置在阀体部件(2)的套筒中。 密封部件与阀口抵接或分离,以打开或关闭电磁阀。 固定铁芯组件(25)包括固定铁芯部件(251)和相对于固定铁芯部件(251)可轴向滑动的传动部件。 密封部件设置在传动部件的下端,传动部件的上端与可动铁芯部件直接或间接接触,从而驱动密封部件抵靠或与阀口分离。 本发明的结构设计合理可靠,整体组装更方便,加工难度降低。 此外,可以实现固定铁芯组件的标准化设计,以减少组装期间的控制步骤,这大大减少了组装中的错误。