公开(公告)号：WO1994023230A1

公开(公告)日：1994-10-13

申请号：PCT/GB1994000691

申请日：1994-03-31

Applicant: BLP COMPONENTS LTD. ,  CONNELL, Richard, Anthony

Inventor： BLP COMPONENTS LTD.

IPC: F16K31/08

CPC classification number: F16K31/082 ,  Y10T137/8242 ,  Y10T137/8275

Abstract: A solenoid actuator for a fluid flow valve comprises a closure member (64) adapted to engage a fluid flow orifice (16), and includes a magnetic plunger (46) under the control of a solenoid, for moving the closure member (64) into or out of engagement with the orifice (16). To assist the opening of the valve, a diaphragm spring (66) aids the downward force upon plunger (46) at changeover, being deflected during the upward stroke of plunger (46) and held deflected until changeover. The solenoid plunger (46) is stable at either end of its travel to maintain the selected state of the valve, change of state to open or close orifice (16) being by means of a magnetic pulse generated by selenoid coil (43), the plunger (46) being latched at closure by permanent magnets (32, 34). The diaphragm spring (66) may form part of an assembly (62) including a membrane switch (70), responsive to the state of the valve, the assembly (62) fitting into the body of the closure member (64). Alternatively a reed switch responsive to magnetic flux may provide valve status indication. The use of a diaphragm spring to assist in valve opening, enables provision of an axially more compact, and electromagnetically more efficient actuator, able with appropriate intrinsic safety protection, to be enclosed within a gas meter housing to control an incoming gas supply under control of electronic switching circuits.

Abstract translation: 用于流体流动阀的螺线管致动器包括适于接合流体流动孔口（16）的闭合构件（64），并且在螺线管的控制下包括磁性柱塞（46），用于将闭合构件（64）移动到 或与孔口16接合。 为了有助于阀的打开，膜片弹簧（66）有助于在切换时在柱塞（46）上的向下的力在柱塞（46）的向上冲程期间被偏转并保持偏转直到转换。 螺线管柱塞（46）在其运行的任一端处是稳定的，以保持阀的选择状态，通过由螺旋线圈（43）产生的磁脉冲将状态改变成打开或关闭孔口（16）， 柱塞（46）通过永磁体（32,34）锁定在闭合状态。 隔膜弹簧（66）可以形成包括膜开关（70）的组件（62）的一部分，其响应于阀的状态，组件（62）装配到封闭构件（64）的主体中。 或者，响应于磁通量的簧片开关可以提供阀状态指示。 使用隔膜弹簧来协助阀门打开，能够提供具有适当本征安全保护的轴向更紧凑和更有效的电磁更有效的致动器，以将其封闭在燃气表外壳内以控制进入的气体供应 电子开关电路。

公开(公告)号：WO9840898A3

公开(公告)日：1998-12-03

申请号：PCT/GB9800612

申请日：1998-02-26

Applicant: BLP COMPONENTS LTD ,  CONNELL RICHARD ANTHONY ,  DARLOW BRIAN STANLEY

Inventor： CONNELL RICHARD ANTHONY ,  DARLOW BRIAN STANLEY

IPC: H01H1/54 ,  H01H9/16 ,  H01H9/38 ,  H01H9/56 ,  H01H47/22 ,  H01H50/04 ,  H01H50/10 ,  H01H50/20 ,  H01H50/54 ,  H01H50/64

CPC classification number: H01H50/646 ,  H01H1/54 ,  H01H9/167 ,  H01H9/38 ,  H01H9/56 ,  H01H47/226 ,  H01H50/045 ,  H01H50/10 ,  H01H50/20 ,  H01H50/54 ,  H01H50/642 ,  H01H2050/025

Abstract: A two pole contactor, particularly for a domestic electricity meter, comprising a solenoid with a plunger actuator (24) and a movable contact (16) for each pole mounted on a pivotal blade (14) in a symmetrical opposed configuration. The plunger is connected to the blades by a leaf spring (38) whose ends engage sliders (40) connected to the blades to impart a similar and even movement to each blade.