WO2012167426A1 - 一种双稳态脉冲电磁阀 - Google Patents

一种双稳态脉冲电磁阀 Download PDF

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Publication number
WO2012167426A1
WO2012167426A1 PCT/CN2011/075447 CN2011075447W WO2012167426A1 WO 2012167426 A1 WO2012167426 A1 WO 2012167426A1 CN 2011075447 W CN2011075447 W CN 2011075447W WO 2012167426 A1 WO2012167426 A1 WO 2012167426A1
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WO
WIPO (PCT)
Prior art keywords
solenoid valve
lower casing
seal
bistable
shutter
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PCT/CN2011/075447
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English (en)
French (fr)
Inventor
汤红志
Original Assignee
Tang Hongzhi
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Publication date
Application filed by Tang Hongzhi filed Critical Tang Hongzhi
Priority to PCT/CN2011/075447 priority Critical patent/WO2012167426A1/zh
Publication of WO2012167426A1 publication Critical patent/WO2012167426A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
    • F16K31/404—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm the discharge being effected through the diaphragm and being blockable by an electrically-actuated member making contact with the diaphragm

Definitions

  • the present invention relates to the field of solenoid valve actuation, and more particularly to a high flow bistable pulse solenoid valve.
  • the basic structure of the existing bistable pulse solenoid valve has a spring, a valve core and a permanent magnet.
  • the working principle of the general bistable pulse solenoid valve is to use a pulse current of a fixed time width to flow through the coil of the pulse solenoid valve.
  • the spool generates a pull-up electromagnetic force to move the spool upward to the permanent magnet, the solenoid valve is opened, and after the pulse current disappears, the valve core is held at the working position by the permanent magnet force of the permanent magnet, thereby maintaining the opening of the solenoid valve.
  • Working status is to use a pulse current of a fixed time width to flow through the coil of the pulse solenoid valve.
  • the spool generates a pull-up electromagnetic force to move the spool upward to the permanent magnet, the solenoid valve is opened, and after the pulse current disappears, the valve core is held at the working position by the permanent magnet force of the permanent magnet, thereby maintaining the opening of the solenoid valve.
  • the existing bistable pulse solenoid valve uses a fixed shutter to control the inflow and sealing of gas or liquid.
  • the relief hole setting of the valve is generally small to facilitate the sealing of the valve, but this is not conducive to the large flow when the solenoid valve is opened.
  • the flow of gas or liquid is not conducive to the large flow when the solenoid valve is opened.
  • the technical problem to be solved by the present invention is to provide a simultaneous pass for the existing bistable pulse solenoid valve using a fixed shutter which is not conducive to the flow of large flow gas or liquid.
  • the reciprocating movement of the valve body in the upper housing and the elastic movement of the valve itself realize the solenoid valve switch
  • the bistable pulse solenoid valve can realize a large flow of gas or liquid flow when the solenoid valve is opened due to the elastic movement of the shutter itself.
  • a bistable pulse solenoid valve comprising a valve core, a pulse coil, an upper casing, a first lower casing, a second lower casing, and a flap provided with a pressure inlet hole and a pressure relief hole, wherein the pulse coil is disposed at the Illustrating the exterior of the housing, the space between the first lower housing and the second lower housing and the second by a reciprocating movement of the spool in the upper housing relative to the shutter Space isolation or communication within the lower housing, wherein the first lower housing and the second are caused by reciprocating movement of the spool relative to the shutter within the upper housing and elastic movement of the shutter itself
  • the space between the lower casings and the space within the second lower casing are isolated or communicated.
  • the shutter includes: a first seal and a second seal for sealingly connecting the first lower casing and the upper casing; and isolating the first lower casing and the second lower casing a central seal between the spaces between the bodies and the space within the second lower housing; a first flexible connector for connecting the first seal to the central seal; and for connecting the second a second flexible connector of the seal and the central seal.
  • the central seal or the valve core is provided with a first sealing elastic member on a contact surface of the central seal and the valve core.
  • the second lower casing or the central seal is provided with a second sealing elastic member on a contact surface of the second lower casing and the central seal.
  • the first flexible connecting member and the second flexible connecting member are TPU, rubber and / Or silica gel, the first seal, the second seal and the central seal are ABS, PC and / or polyethylene.
  • the sum of the sectional areas of the pressure inlet holes is smaller than the sum of the sectional areas of the pressure relief holes.
  • the spool is a permanent magnet spool
  • the bistable pulse solenoid further includes an iron bracket disposed adjacent to the pulse coil for realizing a reciprocating motion of the permanent magnet spool, the permanent magnet
  • the length of the spool is greater than the distance between the iron bracket and the shutter.
  • the length of the permanent magnet spool is greater than the distance between the iron bracket and the top of the upper casing.
  • a drain tank is disposed between the valve body and the inner surface of the upper casing.
  • the bistable pulse solenoid valve further includes an inductance testing device for detecting an inductance of the pulse coil.
  • the implementation of the bistable pulse solenoid valve of the present invention has the following beneficial effects:
  • the elastic movement of the valve itself enables a large flow of gas or liquid to flow when the solenoid valve is opened, thereby avoiding the drawback that the existing bistable pulse solenoid valve uses a fixed shutter to prevent large-flow gas or liquid flow.
  • Figure 1 is a schematic view showing the structure of an open state of a preferred embodiment of the bistable pulse solenoid valve of the present invention
  • Figure 2 is a schematic structural view showing a closed state of a preferred embodiment of the bistable pulse solenoid valve of the present invention
  • Figure 3 is a schematic view showing the structure of a first preferred embodiment of the sump of the bistable pulse solenoid valve of the present invention
  • Figure 4 is a schematic view showing the structure of a second preferred embodiment of the sump of the bistable pulse solenoid valve of the present invention.
  • the bistable pulse solenoid valve includes a spool 1 a pulse coil 2, an upper casing 3, a first lower casing 4, a second lower casing 5, and a shutter 6, the valve 6 is provided with a pressure inlet hole 61 and a pressure relief hole 62, and the pulse coil 2 Provided on the outside of the upper casing 3, the space between the first lower casing 4 and the second lower casing 5 is made by the reciprocating movement of the spool 1 in the upper casing 3 relative to the shutter 6 And the second lower casing The space within the space 5 is isolated or connected, wherein the first lower casing 4 is caused by the reciprocating movement of the valve body 1 in the upper casing 3 relative to the shutter 6 and the elastic movement of the shutter 6 itself.
  • the bistable pulse solenoid valve of the present invention passes through a shutter 6
  • the elastic movement of the valve makes the gas or liquid flow passage when the solenoid valve is opened and closed differently.
  • the solenoid valve is opened, the flow passage of the gas or liquid is due to the valve 6
  • the elastic motion becomes large, facilitating the flow of a large flow of gas or liquid; when the solenoid valve is closed, the flow passage of the gas or liquid becomes smaller due to the elastic movement of the shutter 6 (only through the pressure relief hole 62) Circulation) to facilitate the sealing of the flow channel.
  • the shutter 6 a first seal 63 and a second seal 64 for sealingly connecting the first lower casing 4 and the upper casing 3; for isolating the first lower casing 4 and the second lower portion Housing 5 a central seal 65 between the space and the space in the second lower casing 5; a first flexible joint 66 for connecting the first seal 63 and the central seal 65 And a second flexible connector 67 for connecting the second seal 64 with the central seal 65.
  • the shutter 6 of the present invention is divided into five parts by a flexible joint, wherein the first seal 63 And a second sealing member 64 sealingly connecting the first lower casing 4 and the upper casing 3, the central sealing member 65 is configured to isolate the first lower casing 4 and the second lower casing when the electromagnetic valve is closed 5
  • the shutter 6 realizes the elastic movement of the shutter 6 itself by the first flexible connecting member 66 and the second flexible connecting member 67.
  • the central seal 65 or the spool 1 A first sealing elastic member 9 is provided on the contact surface of the central seal 65 and the valve body 1.
  • the second lower casing 5 or the central seal 65 is in the second lower casing 5
  • a second sealing elastic member 10 is disposed on a contact surface with the center seal 65.
  • the first sealing elastic member 9 and the second sealing elastic member 10 ensure that the first lower casing 4 and the second lower casing are closed when the solenoid valve is closed Complete separation between the space between 5 and the space within the second lower housing 5.
  • the first sealing elastic member 9 can be disposed on the central sealing member 65 or on the valve body 1 according to the needs of the user, and the second sealing elastic member 10 It can be placed on the second lower casing 5 or on the central seal 65 according to the needs of the user.
  • the first flexible connecting member 66 And the second flexible connecting member 67 is TPU ( Thermoplastic polyurethanes), rubber and / Or silica gel
  • the first sealing member 63, the second sealing member 64 and the central sealing member 65 are ABS (Acrylonitrile Butadiene Styrene) : Acrylonitrile-styrene-butadiene copolymer), PC (polycarbonate: Polycarbonate) and / Or polyethylene.
  • the flexible connecting member mainly uses a flexible material
  • the sealing member mainly uses a relatively hard injection molding material, so as to ensure a good elastic movement amount of the shutter 6 and to ensure the shutter 6 and the spool 1 Good sealing between.
  • the shutter of the present invention 6 It is formed by injection molding with soft and hard materials, instead of the traditional hard material (hard plastic cermet, etc.) plus rubber gasket type valve design, reducing the number of components in the solenoid valve, improving the reliability of the solenoid valve, and facilitating mass production.
  • the sum of the cross-sectional areas of the pressure inlet holes 61 is smaller than the pressure relief holes 62.
  • the sum of the sectional areas of the inlet pressure holes 61 is smaller than the sum of the sectional areas of the pressure relief holes 62 to ensure the normal elastic movement of the shutter 6 when the valve is opened, due to the shutter 6
  • the lower pressure is greater than the upper pressure, so that the shutter 6 can be moved upward in the upper stable position, thereby achieving the high flow conduction of the solenoid valve.
  • the valve 6 is caused by the movement of the spool 1 In the lower stable position, the spool 1 seals the pressure relief hole 62, thereby achieving complete closing of the solenoid valve.
  • the valve body 1 of the present invention a permanent magnet valve spool, the bistable pulse solenoid valve further comprising an iron bracket 7 disposed adjacent to the pulse coil 2 for realizing a reciprocating movement of the permanent magnet spool, the permanent magnet spool The length is greater than the iron bracket 7 The distance from the shutter 6.
  • the bistable pulse solenoid valve of the present invention when the pulse coil 2 inputs a positive pulse, the pulse coil 2 generates an upper N lower The magnetic field of S pulls the permanent magnet valve core (S N under the permanent magnet valve core) into the upper part of the upper casing 3.
  • the length is larger than the iron bracket 7 and the shutter 6 The distance between them, so that the lower portion of the permanent magnet valve core is in contact with the shutter 6, the pressure relief hole 62 on the shutter 6 is sealed, the space between the first lower casing 4 and the second lower casing 5, and the Two lower casings 5
  • the space inside is isolated, and the solenoid-controlled liquid or gas presses the permanent magnet spool in the space between the first lower casing 4 and the second lower casing 5, so that the pressure relief hole 62 on the shutter 6
  • the sealing effect is better.
  • the bistable pulse solenoid valve of the present invention does not require the use of a spring and a separate permanent magnet for fixing the position of the spool 1, so that the internal structure of the entire solenoid valve is only the spool 1 and the shutter 6
  • the internal components are few, the mass production is convenient, and the reliability is high.
  • the electromagnetic valve of the invention only needs to consume little power at the moment of the switch, and the normal state does not need to consume power.
  • the permanent magnet spool has a length greater than the iron bracket 7 and the upper casing 3 The distance between the tops.
  • the length of the permanent magnet spool is larger than that of the iron bracket 7 and the upper casing 3 The distance between the tops, so that the upper part of the permanent magnet spool is blocked by the top of the upper casing 3, so that the permanent magnet spool is in a stable open position, and the permanent magnet spool is not in the upper casing due to the vibration of the valve body.
  • a drain 8 is provided between the spool 1 and the inner surface of the upper casing 3 . If the contact surface of the valve body 1 and the inner surface of the upper casing 3 is too smooth, the valve body 1 may be in close contact with the inner surface of the upper casing 3 due to the air pressure, and the normal movement of the spool 1 and the upper casing may be performed. Body 3 A drain 8 is provided between the inner surfaces, as shown in Figs. 3 and 4, so that the spool 1 is not attracted to the inner surface of the upper casing 3, thereby ensuring the reliability of the operation of the solenoid valve.
  • the surface is provided with a projection (shown in FIG. 4) or a projection (shown in FIG. 3) is provided on the inner surface of the upper casing 3 to form a drain 8 , of course, if the cross-sectional area of the spool 1 is made to the upper casing 3 The cross-sectional area of the inner cavity is greatly different, and a large gap is generated between the valve core 1 and the inner surface of the upper casing 3, so that the drain tank 8 can be omitted and the stable operation of the solenoid valve can be ensured.
  • the bistable pulse solenoid valve further includes an inductance testing device 11 and an inductance testing device 11 is used to detect the inductance of the pulse coil 2.
  • Inductance test device 11 can accurately and reliably determine the valve core by discriminating the inductance of the pulse coil 2 The position makes the bistable pulse solenoid valve of the present invention more reliable when operating.
  • the permanent magnet valve core of the present invention can change the spool 1 by changing its length and diameter 1
  • the length of the stroke and the impact force during the switch, the cross section of the permanent magnet spool can be other shapes besides the circle, such as a polygon, wherein the circle is the most economical and efficient.
  • Pulse coil 2 in the present invention The voltage and power used can be adjusted by changing the wire diameter and the number of turns.
  • the material of the pulse coil 2 is not limited to copper wire, and other conductors such as aluminum wire and silver wire can also be used.
  • the shutter of the bistable pulse solenoid valve of the invention adopts a single movable shutter design instead of the original fixed shutter, so that the valve can pass
  • the elastic movement of the valve itself allows a large flow of gas or liquid to flow when the solenoid valve is opened.
  • the permanent magnet valve core is used instead of the position of the original iron valve core, and the plastic sealing process and the water discharge ⁇ , so that only one internal component of the electromagnetic valve is left, which is simple and reliable; the valve body 1 of the bistable pulse electromagnetic valve of the present invention is relatively
  • the coil stroke is relatively long,
  • the inductance of the pulse coil 2 can be discriminated by the inductance testing device 11 to determine the spool 1 more accurately and reliably. s position.
  • the bistable pulse solenoid valve of the invention has lower requirements for injection molding materials, and most common plastics can be used, such as ABS, PC, PP and TPU. Wait.
  • the bistable pulse solenoid valve of the present invention saves power and materials, enhances product reliability and improves production efficiency.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

一种双稳态脉冲电磁阀，包括阀芯（1）、脉冲线圈（2）、上壳体（3）、第一下壳体（4）、第二下壳体（5）以及上面设置有进压孔（61）和泄压孔（62）的活门（6），所述脉冲线圈（2）设置在所述上壳体（3）外部，通过所述阀芯（1）在所述上壳体（3）内的相对所述活门（6）的往返运动使所述第一下壳体（4）与所述第二下壳体（5）之间的空间以及所述第二下壳体（5）内的空间隔离或连通，其中通过所述阀芯（1）在所述上壳体（3）内的相对所述活门（6）的往返运动和所述活门（6）自身的弹性运动使所述第一下壳体（4）与所述第二下壳体（5）之间的空间以及所述第二下壳体（5）内的空间隔离或连通。该电磁阀通过活门（6）自身的弹性运动使得电磁阀打开时可以实现大流量的气体或液体流动。

Description

一种双稳态脉冲电磁阀 技术领域
本发明涉及电磁阀驱动领域，更具体地说，涉及一种大流量的双稳态脉冲电磁阀。
背景技术
现有双稳态脉冲电磁阀内部的基本结构有弹簧,阀芯以及永磁体,一般双稳态脉冲电磁阀的工作原理为：用一个固定时间宽度的脉冲电流流过脉冲电磁阀的线圈，对阀芯产生一个上拉电磁力，使阀芯向上运动到永磁铁处，电磁阀被打开，脉冲电流消失后，依靠永磁铁的永磁力将阀芯保持在该工作位置，从而维持电磁阀的开启工作状态。当需要关闭电磁阀时，用一个固定时间宽度的脉冲电流反向流过脉冲电磁阀的线圈，对阀芯产生一个下拉电磁力，使阀芯挣脱永磁力的吸引向下运动，关闭电磁阀，反向脉冲电流消失后，借助弹簧力的作用将阀芯保持在该工作位置，从而维持电磁阀的关闭工作状态。
现有的双稳态脉冲电磁阀采用固定的活门控制气体或液体的流入和密封，其中活门的泄压孔设置一般都会比较小，以利于活门的密封，但是这样不利于电磁阀打开时大流量的气体或液体的流动。
故，有必要提供一种 双稳态脉冲电磁阀 ，以解决现有技术所存在的问题。
发明内容
本发明要解决的技术问题在于，针对现有的双稳态脉冲电磁阀使用固定活门不利于大流量气体或液体流动的缺陷，提供一种同时通过 阀芯在上壳体内的相对活门的往返运动和活门自身的弹性运动实现电磁阀开关的 双稳态脉冲电磁阀，由于活门自身的弹性运动使得电磁阀打开时可以实现大流量的气体或液体流动。
本发明解决其技术问题所采用的技术方案是：构造一种 双稳态脉冲电磁阀，包括阀芯、脉冲线圈、上壳体、第一下壳体、第二下壳体以及上面设置有进压孔和泄压孔的活门，所述脉冲线圈设置在所述上壳体外部，通过所述阀芯在所述上壳体内的相对所述活门的往返运动使所述第一下壳体与所述第二下壳体之间的空间以及所述第二下壳体内的空间隔离或连通，其中通过所述阀芯在所述上壳体内的相对所述活门的往返运动和所述活门自身的弹性运动使所述第一下壳体与所述第二下壳体之间的空间以及所述第二下壳体内的空间隔离或连通。
在本发明所述的 双稳态脉冲电磁阀 中， 所述活门包括：用于密封连接所述第一下壳体与所述上壳体的第一密封件和第二密封件；用于隔离所述第一下壳体与所述第二下壳体之间的空间以及所述第二下壳体内的空间的中央密封件；用于连接所述第一密封件与所述中央密封件的第一柔性连接件；以及用于连接所述第二密封件与所述中央密封件的第二柔性连接件。
在本发明所述的 双稳态脉冲电磁阀 中， 所述中央密封件或所述阀芯在所述中央密封件和所述阀芯的接触面上设置有第一密封弹性件。
在本发明所述的 双稳态脉冲电磁阀 中， 所述第二下壳体或所述中央密封件在所述第二下壳体和所述中央密封件的接触面上设置有第二密封弹性件。
在本发明所述的 双稳态脉冲电磁阀 中， 所述第一柔性连接件以及所述第二柔性连接件为 TPU 、橡胶和 / 或硅胶，所述第一密封件、所述第二密封件以及所述中央密封件为 ABS 、 PC 和 / 或聚乙烯。
在本发明所述的 双稳态脉冲电磁阀 中， 所述进压孔的截面积之和小于所述泄压孔的截面积之和。
在本发明所述的 双稳态脉冲电磁阀 中， 所述阀芯为永磁阀芯，所述双稳态脉冲电磁阀还包括设置在所述脉冲线圈旁、用于实现所述永磁阀芯的往返运动的定位的铁支架，所述永磁阀芯的长度大于所述铁支架与所述活门之间的距离。
在本发明所述的 双稳态脉冲电磁阀 中， 所述永磁阀芯的长度大于所述铁支架与所述上壳体顶部之间的距离。
在本发明所述的 双稳态脉冲电磁阀 中， 所述阀芯与所述上壳体内表面之间设置有泄水槽。
在本发明所述的 双稳态脉冲电磁阀 中， 所述双稳态脉冲电磁阀还包括用于检测所述脉冲线圈的电感量的电感测试装置。
实施本发明的双稳态脉冲电磁阀，具有以下有益效果： 通过 活门自身的弹性运动使得电磁阀打开时可以实现大流量的气体或液体流动，避免了现有双稳态脉冲电磁阀使用固定活门不利于大流量气体或液体流动的缺陷。
附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明的双稳态脉冲电磁阀的优选实施例的打开状态的结构示意图；
图2是本发明的双稳态脉冲电磁阀的优选实施例的关闭状态的结构示意图；
图3是本发明的双稳态脉冲电磁阀的泄水槽的第一优选实施例的结构示意图；
图4是本发明的双稳态脉冲电磁阀的泄水槽的第二优选实施例的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
在图1和图2所示的 本发明的双稳态脉冲电磁阀的优选实施例的结构示意图中，所述 双稳态脉冲电磁阀包括阀芯 1 、脉冲线圈 2 、上壳体 3 、第一下壳体 4 、第二下壳体 5 以及活门 6 ，活门 6 上设置有进压孔 61 以及泄压孔 62 ，脉冲线圈 2 设置在上壳体 3 的外部，通过阀芯 1 在上壳体 3 内的相对所述活门 6 的往返运动使所述第一下壳体 4 与所述第二下壳体 5 之间的空间以及所述第二下壳体 5 内的空间隔离或连通，其中通过所述阀芯 1 在所述上壳体 3 内的相对所述活门 6 的往返运动和所述活门 6 自身的弹性运动使所述第一下壳体 4 与所述第二下壳体 5 之间的空间以及所述第二下壳体 5 内的空间隔离或连通。本发明的双稳态脉冲电磁阀通过活门 6 自身的弹性运动使得电磁阀开启和关闭时的气体或液体流通通道不同，在电磁阀开启时，气体或液体的流通通道由于活门 6 的弹性运动变大，便于大流量的气体或液体流动；在电磁阀关闭时，气体或液体的流通通道由于活门 6 的弹性运动变小（只能通过泄压孔 62 流通），便于流动通道的密封。
在图1和图2所示的 本发明的双稳态脉冲电磁阀的优选实施例的结构示意图中， 所述活门 6 包括用于密封连接所述第一下壳体 4 与所述上壳体 3 的第一密封件 63 和第二密封件 64 ；用于隔离所述第一下壳体 4 与所述第二下壳体 5 之间的空间以及所述第二下壳体 5 内的空间的中央密封件 65 ；用于连接所述第一密封件 63 与所述中央密封件 65 的第一柔性连接件 66 ；以及用于连接所述第二密封件 64 与所述中央密封件 65 的第二柔性连接件 67 。本发明的活门 6 通过柔性连接件分割成了五部分，其中第一密封件 63 和第二密封件 64 将第一下壳体 4 和上壳体 3 密封连接，中央密封件 65 用于在电磁阀关闭时，隔离所述第一下壳体 4 与所述第二下壳体 5 之间的空间以及所述第二下壳体 5 内的空间，活门 6 通过第一柔性连接件 66 和第二柔性连接件 67 实现活门 6 自身的弹性运动。
在图1和图2所示的 本发明的双稳态脉冲电磁阀的优选实施例的结构示意图中， 所述中央密封件 65 或所述阀芯 1 在所述中央密封件 65 和所述阀芯 1 的接触面上设置有第一密封弹性件 9 。所述第二下壳体 5 或所述中央密封件 65 在所述第二下壳体 5 和所述中央密封件 65 的接触面上设置有第二密封弹性件 10 。第一密封弹性件 9 和第二密封弹性件 10 保证了电磁阀关闭时，第一下壳体 4 与第二下壳体 5 之间的空间与第二下壳体 5 内的空间之间的完全隔离。第一密封弹性件 9 可以根据用户的需要设置在中央密封件 65 上或阀芯 1 上，第二密封弹性件 10 可以根据用户的需要设置在第二下壳体 5 上或中央密封件 65 上。
在图1和图2所示的 本发明的双稳态脉冲电磁阀的优选实施例的结构示意图中， 所述第一柔性连接件 66 以及所述第二柔性连接件 67 为 TPU （ Thermoplastic polyurethanes ： 热塑性聚氨酯弹性体 橡胶）、橡胶和 / 或硅胶，所述第一密封件 63 、所述第二密封件 64 以及所述中央密封件 65 为 ABS （ Acrylonitrile Butadiene Styrene ： 丙烯腈-苯乙烯-丁二烯共聚物 ）、 PC （ 聚碳酸酯 ： Polycarbonate ）和 / 或聚乙烯。柔性连接件主要使用柔性的材料，密封件主要使用比较硬质的注塑材料，这样既可以保证活门 6 的良好的弹性运动量又可以保证活门 6 与阀芯 1 之间良好的密封性。本发明的活门 6 使用软硬两种材料注塑形成，代替了传统的硬材料（硬塑料金属陶瓷等）加橡胶垫圈方式的活门设计，减少电磁阀内的部件数量，提高的电磁阀的可靠性，方便批量生产。
作为本发明的双稳态脉冲电磁阀的优选实施例，所述进压孔 61 的截面积之和小于所述泄压孔 62 的截面积之和。由于本发明的活门 6 是通过压力来实现弹性运动的，如进压孔 61 的截面积之和远大于泄压孔 62 的截面积之和，可能导致活门 6 由于压力一直处于下稳定位，从而活门 6 不能弹性运动，使得电磁阀只能实现小流量的导通（即液体和气体只能通过泄压孔 62 进入第二下壳体 5 内的空间）。而设置进压孔 61 的截面积之和小于泄压孔 62 的截面积之和保证了活门 6 可以正常的弹性运动，在阀门打开时，由于活门 6 下部压力大于上部压力，使得活门 6 可以向上运动处于上稳定位，从而实现了电磁阀的大流量的导通，在阀门关闭时，由于阀芯 1 的运动使得活门 6 处于下稳定位，阀芯 1 密封住泄压孔 62 ，从而实现了电磁阀的完全关闭。
在图1和图2所示的 本发明的双稳态脉冲电磁阀的优选实施例的结构示意图中， 本发明的阀芯 1 为永磁阀芯，所述双稳态脉冲电磁阀还包括设置在所述脉冲线圈 2 旁、用于实现所述永磁阀芯的往返运动的定位的铁支架 7 ，所述永磁阀芯的长度大于所述铁支架 7 与所述活门 6 之间的距离。
本发明的双稳态脉冲电磁阀使用时，如图 1 所示，当脉冲线圈 2 输入正脉冲时，脉冲线圈 2 产生上 N 下 S 的磁场将永磁阀芯（该永磁阀芯上 S 下 N ）拉入到上壳体 3 的上部，当脉冲电流消失后，由于永磁阀芯的两端的磁力最强，铁支架 7 会吸住永磁阀芯的 N 极（即永磁阀芯的下部），使得永磁阀芯处于一个开启位；这时活门 6 上的泄压孔 62 被打开，第一下壳体 4 与第二下壳体 5 之间的空间以及所述第二下壳体 5 内的空间连通，电磁阀控制的液体或气体在压力作用下从第一下壳体 4 与第二下壳体 5 之间的空间进入到第二下壳体 5 内的空间，实现了阀门稳定的开启。如图 2 所示，当脉冲线圈 2 输入负脉冲时，脉冲线圈 2 产生上 S 下 N 的磁场将将永磁阀芯推出上壳体 3 的上部，当脉冲电流消失后，由于永磁阀芯的两端的磁力最强，铁支架 7 会吸住永磁阀芯的 S 极（即永磁阀芯的上部），由于永磁阀芯的长度大于铁支架 7 与活门 6 之间的距离，因此永磁阀芯的下部与活门 6 接触，将活门 6 上的泄压孔 62 密封起来，第一下壳体 4 与第二下壳体 5 之间的空间以及所述第二下壳体 5 内的空间隔离，并且电磁阀控制的液体或气体在第一下壳体 4 与第二下壳体 5 之间的空间内给永磁阀芯施压，使得活门 6 上的泄压孔 62 的密封效果更好。因此采用本发明的双稳态脉冲电磁阀不需要使用弹簧和单独的永磁铁进行阀芯 1 位置的固定，使得整个电磁阀内部的结构只有阀芯 1 和活门 6 ，内部部件较少，方便批量生产，可靠性高，同时本发明的电磁阀只是在开关的瞬间需要极少耗电，平常状态保持无须功耗。
作为本发明的双稳态脉冲电磁阀的优选实施例，所述永磁阀芯的长度大于所述铁支架 7 与所述上壳体 3 顶部之间的距离。当永磁阀芯拉入到上壳体 3 的上部，铁支架 7 吸住永磁阀芯的下部时，由于永磁阀芯的长度大于铁支架 7 与上壳体 3 顶部之间的距离，这样永磁阀芯的上部会被上壳体 3 顶部挡住，使得永磁阀芯处于一个稳定的开启位，不会因为阀体的震动引起永磁阀芯在上壳体 3 内部的上下震动造成电磁阀工作的不稳定。
作为本发明的双稳态脉冲电磁阀的优选实施例，所述阀芯 1 与所述上壳体 3 内表面之间设置有泄水槽 8 。如阀芯 1 与上壳体 3 内表面的接触面太光滑，可能由于气压造成阀芯 1 紧贴在上壳体 3 的内表面而不能正常的上下往返运动，因此在阀芯 1 与上壳体 3 内表面之间设置有泄水槽 8 ，如图 3 和图 4 所示，使得阀芯 1 不会被吸附在上壳体 3 的内表面，保证了电磁阀工作的可靠性。可以根据用户的需要在阀芯 1 表面设置凸起（图 4 所示）或在上壳体 3 的内表面上设置凸起（图 3 所示）以形成泄水槽 8 ，当然如果使阀芯 1 的截面积与上壳体 3 的内腔截面积相差较大，阀芯 1 和上壳体 3 的内表面之间会产生较大的间隙，这样可以不专门设置泄水槽 8 而保证电磁阀的稳定工作。
作为本发明的双稳态脉冲电磁阀的优选实施例，所述双稳态脉冲电磁阀还包括电感测试装置 11 ，电感测试装置 11 用于检测所述脉冲线圈 2 的电感量。电感测试装置 11 通过辨别脉冲线圈 2 的电感量可以准确可靠的判定阀芯 1 的位置，使得本发明的双稳态脉冲电磁阀工作时更加可靠。
本发明中的永磁阀芯可通过改变其长度和直径来改变阀芯 1 的行程长度和开关时冲击力度，永磁阀芯的横截面除圆形外也可以是其他形状，如多边形，其中圆形最省材料和效率最高。本发明中的脉冲线圈 2 可通过改变其线径和匝数来调整其使用的电压及功率 , 脉冲线圈 2 的材料不只局限于铜线，其它导体也可以，如铝线 , 银线等。
本发明的双稳态脉冲电磁阀的活门采用了单体活动活门设计代替了原有的固定活门，使得可以通过 活门自身的弹性运动使得电磁阀打开时可以实现大流量的气体或液体流动。 使用永磁阀芯代替了原铁阀芯的位置，加上塑封工艺和泄水漕，使电磁阀内部部件只剩下一个，简单可靠；本发明的双稳态脉冲电磁阀的阀芯 1 相对线圈行程比较长 , 可以通过电感测试装置 11 辨别脉冲线圈 2 的电感量来更准确可靠地判定阀芯 1 的位置。本发明的双稳态脉冲电磁阀中对注塑材料的要求比较低，大部分常用塑料均可以，例如 ABS 、 PC 、 PP 以及 TPU 等。本发明的双稳态脉冲电磁阀节省了电力和材料，加强了产品的可靠性并提高了生产效率。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

1 、一种双稳态脉冲电磁阀，包括阀芯（ 1 ）、脉冲线圈（ 2 ）、上壳体（ 3 ）、第一下壳体（ 4 ）、第二下壳体（ 5 ）以及上面设置有进压孔（ 61 ）和泄压孔（ 62 ）的活门（ 6 ），所述脉冲线圈（ 2 ）设置在所述上壳体（ 3 ）外部，通过所述阀芯（ 1 ）在所述上壳体（ 3 ）内的相对所述活门（ 6 ）的往返运动使所述第一下壳体（ 4 ）与所述第二下壳体（ 5 ）之间的空间以及所述第二下壳体（ 5 ）内的空间隔离或连通，其特征在于，通过所述阀芯（ 1 ）在所述上壳体（ 3 ）内的相对所述活门（ 6 ）的往返运动和所述活门（ 6 ）自身的弹性运动使所述第一下壳体（ 4 ）与所述第二下壳体（ 5 ）之间的空间以及所述第二下壳体（ 5 ）内的空间隔离或连通。
2 、根据权利要求 1 所述的双稳态脉冲电磁阀，其特征在于，所述活门（ 6 ）包括：
用于密封连接所述第一下壳体（ 4 ）与所述上壳体（ 3 ）的第一密封件（ 63 ）和第二密封件（ 64 ）；
用于隔离所述第一下壳体（ 4 ）与所述第二下壳体（ 5 ）之间的空间以及所述第二下壳体（ 5 ）内的空间的中央密封件（ 65 ）；
用于连接所述第一密封件（ 63 ）与所述中央密封件（ 65 ）的第一柔性连接件（ 66 ）；以及
用于连接所述第二密封件（ 64 ）与所述中央密封件（ 65 ）的第二柔性连接件（ 67 ）。
3 、根据权利要求 2 所述的双稳态脉冲电磁阀，其特征在于，所述中央密封件（ 65 ）或所述阀芯（ 1 ）在所述中央密封件（ 65 ）和所述阀芯（ 1 ）的接触面上设置有第一密封弹性件（ 9 ）。
4 、根据权利要求 2 所述的双稳态脉冲电磁阀，其特征在于，所述第二下壳体（ 5 ）或所述中央密封件（ 65 ）在所述第二下壳体（ 5 ）和所述中央密封件（ 65 ）的接触面上设置有第二密封弹性件（ 10 ）。
5 、根据权利要求 2 所述的双稳态脉冲电磁阀，其特征在于，所述第一柔性连接件（ 66 ）以及所述第二柔性连接件（ 67 ）为 TPU 、橡胶和 / 或硅胶，所述第一密封件（ 63 ）、所述第二密封件（ 64 ）以及所述中央密封件（ 65 ）为 ABS 、 PC 和 / 或聚乙烯。
6 、根据权利要求 1 所述的双稳态脉冲电磁阀，其特征在于，所述进压孔（ 61 ）的截面积之和小于所述泄压孔（ 62 ）的截面积之和。
7 、根据权利要求 1 所述的双稳态脉冲电磁阀，其特征在于，所述阀芯（ 1 ）为永磁阀芯，所述双稳态脉冲电磁阀还包括设置在所述脉冲线圈（ 2 ）旁、用于实现所述永磁阀芯的往返运动的定位的铁支架（ 7 ），所述永磁阀芯的长度大于所述铁支架（ 7 ）与所述活门（ 6 ）之间的距离。
8 、根据权利要求 7 所述的双稳态脉冲电磁阀，其特征在于，所述永磁阀芯的长度大于所述铁支架（ 7 ）与所述上壳体（ 3 ）顶部之间的距离。
9 、根据权利要求 7 所述的双稳态脉冲电磁阀，其特征在于，所述阀芯（ 1 ）与所述上壳体（ 3 ）内表面之间设置有泄水槽（ 8 ）。
10 、根据权利要求 1-9 中任一所述的双稳态脉冲电磁阀，其特征在于，所述双稳态脉冲电磁阀还包括用于检测所述脉冲线圈（ 2 ）的电感量的电感测试装置（ 11 ）。
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