WO2022242719A1 - 一种可逆电磁阀 - Google Patents

一种可逆电磁阀 Download PDF

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Publication number
WO2022242719A1
WO2022242719A1 PCT/CN2022/093884 CN2022093884W WO2022242719A1 WO 2022242719 A1 WO2022242719 A1 WO 2022242719A1 CN 2022093884 W CN2022093884 W CN 2022093884W WO 2022242719 A1 WO2022242719 A1 WO 2022242719A1
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WO
WIPO (PCT)
Prior art keywords
valve
slider
sealing
valve port
sealing surface
Prior art date
Application number
PCT/CN2022/093884
Other languages
English (en)
French (fr)
Inventor
冯忠波
熊匀均
Original Assignee
浙江盾安人工环境股份有限公司
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Publication date
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to JP2023564123A priority Critical patent/JP2024517643A/ja
Priority to EP22804039.0A priority patent/EP4354001A1/en
Publication of WO2022242719A1 publication Critical patent/WO2022242719A1/zh
Priority to US18/512,062 priority patent/US20240093788A1/en

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Classifications

    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/243—Packings
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings

Definitions

  • the present application relates to the technical field of two-way solenoid valves, in particular to a reversible solenoid valve.
  • the schematic diagram of the assembly structure of the valve seat and the slider in the reversible electromagnetic valve of the related art is shown in Figure 1, the valve port 2 on the valve seat 1 is circular, and the slider 3 is used to block the sealing surface of the valve port 2 and slide
  • the block 3 is set as a circular structure, so that when the slider 3 moves on the valve seat 1 and closes the valve, the slider 3 intersects with the opening edge of the valve port 2 on the valve seat 1 and forms two supporting points.
  • an action force F will be generated on the slider, and the force F will cause the slider 3 to rotate and tilt along the line formed by the two support points.
  • the structural diagram of tilting after rotation is shown in Figure 2.
  • the force F acts on the slider 3.
  • the front end of the slider 3 along the moving direction sinks into the valve port 2.
  • the depth value of the slider 3 is represented by ⁇ , and the slider 3 collides with the edge of the valve port 2 in an inclined state; after that, the slider 3 slides out of the valve port 2 forcibly under the action of an external force and then seals the valve port 2 .
  • a reversible solenoid valve is provided.
  • the reversible solenoid valve includes a valve seat with a valve port, a slider slidably connected to the valve seat, and a driving member, and the driving member can drive the slider to move against the valve seat for
  • the sealing surface of the slider selectively blocks the valve port; the sealing surface of the slider has a sealing point, and the sealing point is set corresponding to the limit position of the edge of the valve port on the valve seat, so as to When the slider drives the sealing point across the valve port, the sealing surface of the slider can block the valve port; and the slider is under the pressure difference, the slider
  • the location of the above-mentioned sealing point is not lower than the plane where the edge of the valve port is located.
  • the sealing point is set on the border line of the sealing surface facing the edge of the valve port.
  • the border line of the sealing point on the sealing surface is set as a straight line segment perpendicular to the direction in which the slider moves on the valve seat.
  • the sealing surface is rectangular.
  • an arc-shaped groove is formed on the end of the sealing surface facing the edge of the valve port, and the sealing point is set at the bottom of the arc-shaped groove.
  • the arc groove includes two connected arc grooves, the two arc grooves are arranged symmetrically with respect to the center line of the slider, and the connecting node of the two arc grooves is set For the sealing point.
  • the number of the arc-shaped groove is one, and the arc-shaped groove is symmetrical with respect to the center line of the slider, and the center point of the groove bottom on the arc-shaped groove is set as the The above sealing point.
  • the sealing point is arranged inside the sealing surface.
  • the sealing surface includes a circular main surface and a strip-shaped convex surface on the circular main surface, and the sealing point is set on the circular main surface and the strip-shaped convex surface. The center position of the connected edge.
  • the sum of twice the sealing width and the caliber of the valve port is smaller than the outer diameter of the sealing surface.
  • FIG. 1 is a schematic diagram of an assembly structure of a slider and a valve seat in a reversible solenoid valve in the related art.
  • Fig. 2 is a schematic diagram showing the status of the slider in the reversible solenoid valve in the related art when the slider is tilted.
  • Fig. 3 is a schematic structural diagram of a reversible solenoid valve according to one or more embodiments.
  • Fig. 4 is a schematic diagram of an assembly structure of a valve seat and a slider in a reversible solenoid valve according to one or more embodiments.
  • Fig. 5 is a schematic view of the assembly structure of the valve seat and the slider in another view of the reversible solenoid valve according to one or more embodiments.
  • Fig. 6 is a schematic diagram of the assembly structure of the slider and the valve seat in the second situation of the reversible solenoid valve according to one or more embodiments.
  • Fig. 7 is a schematic diagram of an assembly structure of a valve seat and a slider in a reversible solenoid valve according to one or more embodiments.
  • Fig. 8 is a schematic view of the assembly structure of the valve seat and the slider in another view of the reversible solenoid valve according to one or more embodiments.
  • Fig. 9 is a schematic diagram of an assembly structure of a valve seat and a slider in a reversible solenoid valve according to one or more embodiments.
  • Fig. 10 is a schematic diagram of an assembly structure of a valve seat and a slider in a reversible solenoid valve according to one or more embodiments.
  • Fig. 11 is a structural schematic diagram of a sealing surface on a slider in a reversible solenoid valve according to one or more embodiments.
  • Fig. 12 is a schematic diagram of an assembly structure of a valve seat and a slider in a reversible solenoid valve according to one or more embodiments.
  • the reversible solenoid valve 100 provided by the present application includes a valve body 40 , a valve core assembly 50 and a driver 30 , the valve body 40 has a valve chamber 41 , and the valve core assembly 50 can move in the valve chamber 41 .
  • the valve cavity 41 is provided with an intermediate end cover 44, and the two ends of the valve body 40 are respectively provided with a first end cover 42 and a second end cover 43.
  • the valve cavity 41 includes a first cavity 411, a second cavity 412 and a third cavity 413.
  • the first end cover 42, the valve body 40 and the valve core assembly 50 cooperate to form a first chamber 411, the valve core assembly 50, the middle end cover 44 and the valve body 40 form a second chamber 412, the valve core assembly 50, the valve body 40 and The second end cap 43 forms a third cavity 413 .
  • the valve body 40 defines a first hole 45 and a second hole 46 , the first hole 45 communicates with the second cavity 412 , and the second hole 46 communicates with the third cavity 413 .
  • the first capillary 451 is provided in the first hole 45, and the second capillary 461 is provided in the second hole 46.
  • the first capillary 451 and the second capillary 461 are connected to the driving member 30, so that the two sides of the valve core assembly 50 form pressure. Poor, push the spool assembly 50 to move.
  • the spool assembly 50 includes a slider 20 and a piston 51, the slider 20 is located in the first cavity 411, the piston 51 seals off the second cavity 412 and the third cavity 413, and the second cavity 412 is located near the first cavity 411 of the piston 51.
  • the third chamber 413 is located on the side of the piston 51 close to the second end cap 43 , and the second chamber 412 and the third chamber 413 can form a pressure difference to push the piston 51 to move.
  • the reversible solenoid valve 100 includes a valve seat 10 with a valve port 11 and a driving member 30 , and the valve core assembly also includes a slider 20 .
  • the valve seat 10 is disposed inside the valve body 40
  • the driver 30 is disposed outside the valve body 40
  • the slider 20 is connected to the piston 51
  • the slider 20 slides in the valve seat 10 driven by the piston 51 .
  • the driving member 30 can drive the slider 20 to be attached to the valve seat 10 to move so as to selectively block the valve port 11 with the sealing surface 22 of the slider 20, so that when the reversible solenoid valve 100 works, the valve seat On-off control of valve port 11 on 10.
  • the upper sealing surface 22 of the slider 20 in the present application specifically refers to the side end surface of the slider 20 attached to the valve seat 10 .
  • the sealing surface 22 of the slider 20 of the present application has a sealing point 21, and the sealing point 21 is set corresponding to the limit position of the valve port edge 12 on the valve seat 10, so that When the slider 20 drives the sealing point 21 across the valve port 11, the sealing surface 22 of the slider 20 can block the valve port 11; The position is not lower than the plane where the edge 12 of the valve port is located.
  • the reversible solenoid valve 100 drives the slider 20 to close the valve, it can prevent the position where the sealing point 21 on the slider 20 is located from the valve seat 10 after the slider 20 is subjected to the pressure difference.
  • the edge 12 of the valve port interferes, so as to prevent the position where the sealing point 21 on the slider 20 is located from colliding with the edge 12 of the valve port of the valve seat 10, thereby ensuring that the sealing surface 22 on the slider 20 blocks the valve seat 10.
  • the sealing effect on the valve port 11 at the port 11 has the function of improving the product reliability of the reversible solenoid valve 100 .
  • the slider 20 will continue to move a certain distance after driving the sealing surface 22 to just block the valve port 11 That is to say, when the reversible solenoid valve 100 of this embodiment uses the slider 20 to block the valve port 11 of the valve seat 10, the distance between the sealing point 21 of the sealing surface 22 of the slider 20 and the edge 12 of the valve port The shortest vertical distance is the sealing width D of the slider 20 .
  • the sealing point 21 on the slider 20 is set corresponding to the limit position of the edge 12 of the valve port on the valve seat 10, and the limit position includes the following two situations: the first situation, when the slider 20 is located at the valve port 11 In the critical position, the sealing point 21 on the slider 20 is the position corresponding to the last blocked position on the valve port edge 12 of the valve seat 10; in the second case, when the slider 20 stops at last, the slider The sealing point 21 on the block 20 corresponds to the position on the valve port edge 12 of the valve seat 10 that is finally blocked.
  • the sealing point 21 belongs to the first situation. Specifically, the sealing point 21 on the slider 20 can be set on the border line 23 on the side of the sealing surface 22 facing the edge 12 of the valve port. Because the slide block 20 can only rotate and tilt around the line connecting the two support points 13 where the frame line 23 of the sealing surface 22 on the slide block 20 crosses with the edge 12 of the valve port under the action of the pressure difference, the sealing point position 21 is set on the frame line 23 to ensure that when the slider 20 rotates and tilts on the valve seat 10 due to the pressure difference when the valve is closed, the position of the sealing point 21 on the slider 20 is always set on the valve seat 10.
  • the plane where the port edge 12 is located that is, the sealing point 21 on the slider 20 will not sink into the valve port 11 due to the rotation of the slider 20 .
  • the position of the sealing point 21 on the slider 20 is prevented from interfering with the valve port edge 12 of the valve seat 10 , thereby ensuring effective sealing of the valve port 11 on the valve seat 10 when the slider 20 closes the valve.
  • the sealing surface 22 of this embodiment has the frame line 23 of the sealing point 21, which is set to be perpendicular to the slider 20 on the valve seat 10 straight line segments in the direction of motion.
  • the border line 23 of the sealing point 21 on the slider 20 simplifies the structure of the sealing surface 22 on the slider 20 to facilitate the production and preparation of the slider 20 and reduce the production cost of the slider 20 .
  • the upper sealing surface 22 of the slider 20 in this embodiment has a rectangular shape to further simplify the structure of the slider 20 .
  • the sealing surface 22 on the slider 20 is not limited to what is shown in the figure.
  • the border line 23 with the sealing point 21 on the slider 20 can be set to any other shape, as long as the border line 23 and the valve port edge 12 intersect the two support points 13 and the sealing point 21 on the same straight line, the sealing surface 22 on the slider 20 can be realized when the valve port 11 of the valve seat 10 is placed The effect of blocking the valve port 11 is sufficient.
  • the reversible solenoid valve 100 provided by the second embodiment of the present application, wherein the sealing surface 22 of the slider 20 of this embodiment is provided with an arc on the end of the side facing the edge 12 of the valve port
  • the arc-shaped groove 210, the sealing point 21 is set at the groove bottom of the arc-shaped groove 210.
  • the above-mentioned arc groove 210 includes two arc grooves connected, and the two arc grooves are arranged symmetrically with respect to the center line of the slider 20, and the sealing point 21 on the slider 20 is set as the center line of the two arc grooves. Connect the nodes.
  • the two support points 13 where the sealing surface 22 intersects with the edge 12 of the valve port and the sealing point 21 are set on the same straight line, so as to ensure that the sealing point 21 on the slider is always set on the plane where the edge 12 of the valve port is located on the valve seat 10 On the basis of this, the diversity of the structure of the slider 20 is realized.
  • arc grooves are not limited to those shown in the figure, and those skilled in the art can set the arc grooves into other arbitrary shapes, as long as the two supports where the sealing surface 22 intersects with the edge 12 of the valve port are ensured.
  • the point 13 and the sealing point 21 are arranged on the same straight line, and the sealing point 21 is always on the border line 23 of the sealing surface 22 on the slider 20 , and no further description is given here.
  • the reversible solenoid valve 100 provided by the third embodiment of the present application, wherein the structure of the slider 20 of this embodiment is substantially similar to that of the slider 20 of the second embodiment of the application, wherein the structure of the slider 20 of this embodiment
  • An arc-shaped groove 210 is also provided on the end of the sealing surface 22 of the slider 20 facing the edge 12 of the valve port, wherein the arc-shaped groove 210 is symmetrical with respect to the center line of the slider 20 , and the slider 20
  • the upper sealing point 21 is set as the center point of the upper groove bottom of the arc groove 210 .
  • the upper sealing point 21 of the slider 20 is set on the inner side of the two supporting points 13 where the upper sealing surface 22 of the slider 20 intersects with the edge 12 of the valve port, so that when the slider 20 When subjected to the pressure difference to rotate and tilt around the line connecting the two support points 13, the sealing point 21 on the slider 20 will be set higher than the plane where the edge 12 of the valve port on the valve seat 10 is located, so as to avoid The location of the sealing point 21 on the slider 20 interferes with the edge 12 of the valve port of the valve seat 10 , thereby ensuring effective sealing of the valve port 11 on the valve seat 10 when the slider 20 closes the valve.
  • the structure of the arc-shaped groove 210 on the slider 20 in this embodiment is not limited to what is shown in the figure.
  • the arc-shaped groove 210 can be It is set to other special-shaped structures, and will not be elaborated here.
  • the sealing point 21 belongs to the second situation.
  • the sealing point 21 on the slider 20 can also be set inside the sealing surface 22, so as to realize various structures of the sealing surface 22 on the slider 20 flexibility, so that the slider 20 can be correspondingly set according to different usage requirements. Please refer to Fig. 10 and Fig.
  • the upper sealing surface 22 of the slider 20 includes a circular main surface 201 and a bar-shaped convex surface provided on the circular main surface 201 202 , the sealing point 21 is set at the center of the line connecting the circular main surface 201 and the bar-shaped convex surface 202 .
  • the outer edge of the strip-shaped convex surface 202 first interferes with the valve port edge 12, avoiding the position where the sealing point 21 on the slider 20 is in contact with the valve seat.
  • the edge 12 of the valve port 10 interferes, thereby ensuring the effective sealing of the valve port 11 on the valve seat 10 when the slider 20 closes the valve.
  • the slider 20 is in the shape of a disc, and the sealing point 21 is located in the sealing surface 22 of the slider 20, wherein the sealing of this embodiment
  • the sum of twice the sealing width D and the diameter of the valve port 11 is smaller than the outer diameter of the sealing surface 22, so that the outer diameter of the slider 20 of the slider 20 in this embodiment is set to be large enough to slide
  • the outer edge of the block 20 first interferes with the edge 12 of the valve port, so as to avoid interference between the position of the sealing point on the slider 20 and the edge 12 of the valve seat 10, thereby ensuring that the slider 20 has a positive impact on the valve seat when the valve is closed. Effective sealing of valve port 11 on 10.
  • valve port of the valve seat 10 on the reversible solenoid valve 100 of the present application is generally a conventional circular structure.
  • valve port of the valve seat 10 can be set as a polygon structure, which will not be elaborated here.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Sliding Valves (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

一种可逆电磁阀(100)，包括具有阀口(11)的阀座(10)、滑动地连接于阀座(10)的滑块(20)、及驱动件(30)，驱动件(30)能够驱动滑块(20)贴合于阀座(10)运动，以用滑块(20)的密封面(22)选择性地封堵阀口(11)。滑块(20)的密封面(22)具有密封点位(21)，密封点位(21)对应于阀座(10)上阀口(11)边沿的极限位置设置，以使滑块(20)带动密封点位(21)横跨阀口(11)时，滑块(20)的密封面(22)能够封堵阀口(11)，并且滑块(20)在压差作用之下，滑块(20)上密封点位(21)所在的位置不低于阀口(11)边沿所在的平面。该可逆电磁阀可以避免滑块(20)上密封点位(21)所在位置与阀座(10)的阀口边沿(12)发生干涉，进而确保滑块(20)关阀时对阀座(10)上阀口(11)的有效密封。

Description

一种可逆电磁阀
相关申请
本申请要求2021年5月20日申请的，申请号为202110553722.X，发明名称为“一种可逆电磁阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及双向电磁阀技术领域，特别是涉及一种可逆电磁阀。
背景技术
目前，相关技术的可逆电磁阀中阀座与滑块的装配结构示意图如图1所示，阀座1上阀口2为圆形，滑块3用于封堵阀口2的密封面且滑块3设为圆形结构，这样滑块3在阀座1上运动并进行关阀时，滑块3与阀座1上阀口2的开口边沿交叉并形成有两个支撑点，在压差的作用下会产生对滑块的一作用力F，该作用力F会导致滑块3沿两个支撑点构成的连线进行旋转并倾斜。旋转后发生倾斜的结构图如图2所示，作用力F作用于滑块3，沿关阀方向S闭合阀口2的过程中，滑块3沿运动方向的前端陷入至阀口2内，滑块3陷入的深度值以σ表示，滑块3以倾斜的状态与阀口2边沿碰撞；之后滑块3在外力的作用下从阀口2内强行滑出后对阀口2进行封堵。这样会导致滑块3在关阀过程中与阀座1上阀口2的边沿产生一定量的干涉，从而使得该可逆电磁阀在关阀时，滑块3的密封面与阀座1的阀口2边沿之间存有一定的抵碰，长此以往，会造成滑块3上密封面的磨损，从而使得滑块3上密封面无法实现对阀座1上阀口2的有效密封，降低该可逆电磁阀的产品可靠性。
发明内容
根据本申请的各种实施例，提供一种可逆电磁阀。
所述可逆电磁阀包括具有阀口的阀座、滑动地连接于所述阀座的滑块、及驱动件，所述驱动件能够驱动所述滑块贴合于所述阀座运动，以用所述滑块的密封面选择性地封堵所述阀口；所述滑块的密封面具有密封点位，所述密封点位对应于所述阀座上阀口边沿的极限位置设置，以使所述滑块带动所述密封点位横跨所述阀口时，所述滑块的密封面能够封堵所述阀口；并且所述滑块在压差作用之下，所述滑块上所述密封点位所在的位置不低于所述阀口边沿所在的平面。
在一实施例中，所述密封点位设置在所述密封面上朝向所述阀口边沿一侧的边框线上。
在一实施例中，所述密封面上具有所述密封点位的边框线，设为垂直于所述滑块在所述阀座上运动的方向的直线段。
在一实施例中，所述密封面呈矩形状。
在一实施例中，所述密封面上朝向所述阀口边沿一侧的端部上开设有弧形凹槽，所述密封点位设置在所述弧形凹槽的槽底位置。
在一实施例中，所述弧形凹槽包括相连接的两个弧槽，两个所述弧槽相对于所述滑块的中心线对称设置，两个所述弧槽的连接结点设为所述密封点位。
在一实施例中，所述弧形凹槽的数量为一个，所述弧形凹槽相对于所述滑块的中心线对称，并且所述弧形凹槽上槽底的中心点设为所述密封点位。
在一实施例中，所述密封点位设置在所述密封面的内部。
在一实施例中，所述密封面包括圆形主面、及设于所述圆形主面上的条形 凸面，所述密封点位设置在所述圆形主面与所述条形凸面相连接的连线的中心位置。
在一实施例中，所述密封面封堵所述阀口时的2倍密封宽度与所述阀口的口径之和，小于所述密封面的外径。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更好地描述和说明这里公开的那些申请的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的申请、目前描述的实施例和/或示例以及目前理解的这些申请的最佳模式中的任何一者的范围的限制。
图1为相关技术的可逆电磁阀中滑块与阀座的装配结构示意图。
图2为相关技术的可逆电磁阀中滑块倾斜时的状态示意图。
图3为根据一个或多个实施例的可逆电磁阀的结构示意图。
图4为根据一个或多个实施例的可逆电磁阀中阀座与滑块的装配结构示意图。
图5为根据一个或多个实施例的可逆电磁阀中阀座与滑块另一视角的装配结构示意图。
图6为根据一个或多个实施例的可逆电磁阀中处于第二种情形时滑块与阀座的装配结构示意图。
图7为根据一个或多个实施例的可逆电磁阀中阀座与滑块装配结构示意图。
图8为根据一个或多个实施例的可逆电磁阀中阀座与滑块另一视角的装配 结构示意图。
图9为根据一个或多个实施例的可逆电磁阀中阀座与滑块的装配结构示意图。
图10为根据一个或多个实施例的可逆电磁阀中阀座与滑块装配结构示意图。
图11为根据一个或多个实施例的可逆电磁阀中滑块上密封面的结构示意图。
图12为根据一个或多个实施例的可逆电磁阀中阀座与滑块的装配结构示意图。
图中各符号表示含义如下：
100、可逆电磁阀；10、阀座；11、阀口；12、阀口边沿；13、支撑点；20、滑块；201、圆形主面；202、条形凸面；21、密封点位；210、弧形凹槽；22、密封面；23、边框线；30、驱动件；40、阀体；41、阀腔；411、第一腔；412、第二腔；413、第三腔；42、第一端盖；43、第二端盖；44、中间端盖；45、第一孔；451、第一毛细管；46、第二孔；461、第二毛细管；50、阀芯组件；51、活塞。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技 术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。
请参阅图3，本申请所提供的可逆电磁阀100，包括阀体40、阀芯组件50及驱动件30，阀体40具有阀腔41，阀芯组件50能够在阀腔41中运动。阀腔41内设有中间端盖44，阀体40的两端分别设有第一端盖42及第二端盖43，阀腔41包括第一腔411、第二腔412及第三腔413，第一端盖42、阀体40及阀芯组件50配合形成第一腔411，阀芯组件50、中间端盖44及阀体40形成第二腔412，阀芯组件50、阀体40及第二端盖43形成第三腔413。
阀体40上开设有第一孔45及第二孔46，第一孔45与第二腔412连通，第二孔46与第三腔413连通。第一孔45内设有第一毛细管451，第二孔46内设有第二毛细管461，第一毛细管451与第二毛细管461连接于驱动件30，以使阀芯组件50的两侧形成压力差，推动阀芯组件50移动。
阀芯组件50包括滑块20及活塞51，滑块20位于第一腔411内，活塞51密封地隔绝第二腔412及第三腔413，第二腔412位于活塞51靠近第一腔411的一侧，第三腔413位于活塞51靠近第二端盖43的一侧，第二腔412与第三腔413能够形成压力差，以推动活塞51移动。
请参阅图4，可逆电磁阀100包括具有阀口11的阀座10及驱动件30，阀芯组件还包括滑块20。阀座10设于阀体40内，驱动件30设于阀体40外，滑块20与活塞51连接，滑块20在活塞51的带动下在阀座10内滑移。
其中，驱动件30能够驱动滑块20贴合于阀座10运动，以用滑块20的密封面22选择性地封堵阀口11，以此实现该可逆电磁阀100工作时，对阀座10上阀口11的开闭控制。需要说明的是，本申请的滑块20上密封面22，具体指滑块20上贴合于阀座10的一侧端面。
请参阅图1-图6，在本申请中，本申请的滑块20的密封面22具有密封点位21，密封点位21对应于阀座10上阀口边沿12的极限位置设置，以使滑块20带动密封点位21横跨阀口11时，滑块20的密封面22能够封堵阀口11；并且滑块20在压差作用之下，滑块20上密封点位21所在的位置不低于阀口边沿12所在的平面。通过上述合理的结构设置，使得该可逆电磁阀100在驱动滑块20进行关阀时，能够防止滑块20受到压差作用后，滑块20上密封点位21所在的部位与阀座10的阀口边沿12发生干涉，以此避免滑块20上密封点位21所在的部位与阀座10的阀口边沿12发生抵碰，进而确保该滑块20上密封面22封堵阀座10阀口11时对阀口11的密封效果，具有提高该可逆电磁阀100产品可靠性的作用。
可以理解，本申请的可逆电磁阀100驱动滑块20上密封面22封堵阀座10上阀口11时，滑块20在带动密封面22恰好封堵阀口11后还会继续移动一定距离才停止，也就是说，本实施方式的可逆电磁阀100用滑块20封堵阀座10的阀口11时，滑块20的密封面22的密封点位21与阀口边沿12之间的最短垂直距离为该滑块20的密封宽度D。故此，该滑块20上密封点位21对应于阀座10上阀口边沿12的极限位置设置，该极限位置包括以下两种情形：第一种情形，当滑块20位于封堵阀口11的临界位置时，该滑块20上密封点位21为对应于阀座10的阀口边沿12上最后被封堵的部位的位置；第二种情形，当滑块20最后停止时，该滑块20上密封点位21为对应于阀座10的阀口边沿12上最后被封堵的部位的位置。
其中，如图4-图9所示，密封点位21属于第一种情形。具体可将滑块20上密封点位21设置在密封面22上朝向阀口边沿12一侧的边框线23上。由于滑块20在压差作用下只能绕该滑块20上密封面22的边框线23与阀口边沿12 交叉的两个支撑点13相连接的连线进行旋转倾斜，而将密封点位21设置在该边框线23上，确保滑块20关阀时因受到压差而在阀座10上旋转倾斜时，该滑块20上密封点位21所在的位置始终设置在阀座10上阀口边沿12所在的平面，即滑块20上密封点位21不会因滑块20旋转而陷入至阀口11内。以此达到避免滑块20上密封点位21所在的位置与阀座10的阀口边沿12发生干涉，进而确保该滑块20关阀时对阀座10上阀口11的有效密封。
请参阅图4-图6，本申请第一实施例所提供的可逆电磁阀100，本实施例的密封面22上具有密封点位21的边框线23，设为垂直于滑块20在阀座10上运动的方向的直线段。本实施方式滑块20上设有密封点位21的边框线23具有简化该滑块20上密封面22的结构，以便于滑块20的生产制备，以及降低滑块20生产成本的作用。具体地，本实施方式的滑块20上密封面22呈矩形状，以进一步简化该滑块20的结构。当然，需要说明的是，滑块20上密封面22不局限为图示所示，对本领域技术人员来说，可将该滑块20上具有密封点位21的边框线23可设为其它任意形状，只要满足边框线23与阀口边沿12交叉的两个支撑点13与密封点位21位于同一直线，该滑块20上密封面22置于该阀座10的阀口11上时能够实现对阀口11封堵的作用即可。
请参阅图7、图8，本申请第二实施例所提供的的可逆电磁阀100，其中本实施例的滑块20的密封面22上朝向阀口边沿12一侧的端部上开设有弧形凹槽210，密封点位21设置在弧形凹槽210的槽底位置。通过上述的结构设置，使得该滑块20上用于密封阀口11的密封面22设为其它结构，以此实现该滑块20结构的多样性，使得该滑块20能够根据不同的使用需求进行对应设置。其中，上述的弧形凹槽210包括相连接的两个弧槽，两个弧槽相对于滑块20的中心线对称设置，且该滑块20上密封点位21设为两个弧槽的连接结点。密封面22与 阀口边沿12交叉的两个支撑点13与密封点位21设置在同一直线上，在确保该滑块上密封点位21始终设置在阀座10上阀口边沿12所在的平面的基础上，实现该滑块20结构的多样性。当然，需要说明的是，上述弧槽不局限为图示所示，对本领域技术人员来说，可将弧槽设为其它任意形状，只要确保密封面22与阀口边沿12交叉的两个支撑点13与密封点位21设置在同一直线，该密封点位21始终在该滑块20上密封面22的边框线23上即可，在此就不展开阐述。
请参阅图9，本申请第三实施例所提供的可逆电磁阀100，其中本实施例的滑块20的结构与本申请第二实施例的滑块20的结构大体相似，其中本实施方式的滑块20的密封面22上朝向阀口边沿12一侧的端部上也开设有一个弧形凹槽210，其中该弧形凹槽210相对于滑块20的中心线对称，该滑块20上密封点位21设置为该弧形凹槽210上槽底的中心点。在该滑块20关阀时，本实施例将滑块20上密封点位21设置于滑块20上密封面22与阀口边沿12交叉的两个支撑点13的内侧，使得当滑块20受到压差作用而绕两个支撑点13相连接的连线进行旋转倾斜时，该滑块20上密封点位21会高于阀座10上阀口边沿12所在的平面设置，以此达到避免滑块20上密封点位21所在的位置与阀座10的阀口边沿12发生干涉，进而确保该滑块20关阀时对阀座10上阀口11的有效密封。需要说明的是，本实施例的滑块20上弧形凹槽210的结构不局限为图示所示，对本领域技术人员来说，在满足上述条件的基础上，可将弧形凹槽210设置为其它异形结构，在此就不展开阐述。
另外，如图10-图12所示，密封点位21属于第二种情形。密封点位21除了设置在密封面22的边框线23之外，还可将滑块20上密封点位21设置在密封面22的内部，以此实现该滑块20上密封面22结构的多样性，使得该滑块20能够根据不同的使用需求进行对应设置。请参阅图10、图11，本申请第四实施 例所提供的可逆电磁阀100，该滑块20上密封面22包括圆形主面201、及设于圆形主面201上的条形凸面202，密封点位21设置在圆形主面201与条形凸面202相连接的连线的中心位置。使得该滑块20在封堵阀座10上阀口11时，条形凸面202的外边沿先与阀口边沿12发生干涉，避免了该滑块20上密封点位21所在的位置与阀座10的阀口边沿12发生干涉，进而确保该滑块20关阀时对阀座10上阀口11的有效密封。请参阅图12，本申请第五实施例所提供的可逆电磁阀100，该滑块20的形状为圆盘状，密封点位21位于滑块20上密封面22内，其中本实施方式的密封面22封堵阀口11时的2倍密封宽度D与阀口11的口径之和小于密封面22的外径，使得本实施方式的滑块20将滑块20外径设为足够大，滑块20外边沿先与阀口边沿12发生干涉，以避免该滑块20上密封点位所在的位置与阀座10的阀口边沿12发生干涉，进而确保该滑块20关阀时对阀座10上阀口11的有效密封。
另外，需要说明的是，本申请的可逆电磁阀100上阀座10的阀口通常为常规的圆形结构，对部分实施例的可逆电磁阀100，可将阀座10的阀口设为多边形结构，在此就不展开阐述。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施例，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (15)

  1. 一种可逆电磁阀，包括具有阀口的阀座、滑动地连接于所述阀座的滑块、及驱动件，所述驱动件能够驱动所述滑块贴合于所述阀座运动，以用所述滑块的密封面选择性地封堵所述阀口；
    所述滑块的密封面具有密封点位，所述密封点位对应于所述阀座上阀口边沿的极限位置设置，以使所述滑块带动所述密封点位横跨所述阀口时，所述滑块的密封面能够封堵所述阀口；并且所述滑块在压差作用之下，所述滑块上所述密封点位所在的位置不低于所述阀口边沿所在的平面。
  2. 根据权利要求1所述的可逆电磁阀，其中，所述密封点位设置在所述密封面上朝向所述阀口边沿一侧的边框线上。
  3. 根据权利要求2所述的可逆电磁阀，其中，所述密封面上具有所述密封点位的边框线，设为垂直于所述滑块在所述阀座上运动的方向的直线段。
  4. 根据权利要求3所述的可逆电磁阀，其中，所述密封面呈矩形状。
  5. 根据权利要求4所述的可逆电磁阀，其中，所述密封面上朝向所述阀口边沿一侧的端部上开设有弧形凹槽，所述密封点位设置在所述弧形凹槽的槽底位置。
  6. 根据权利要求5所述的可逆电磁阀，其中，所述弧形凹槽包括相连接的两个弧槽，两个所述弧槽相对于所述滑块的中心线对称设置，两个所述弧槽的连接结点设为所述密封点位。
  7. 根据权利要求5所述的可逆电磁阀，其中，所述滑块上所述密封面与所述阀口边沿交叉的两个支撑点与所述密封点位设置在同一直线上。
  8. 根据权利要求5所述的可逆电磁阀，其中，所述弧形凹槽的数量为一个，所述弧形凹槽相对于所述滑块的中心线对称，并且所述弧形凹槽上槽底 的中心点设为所述密封点位。
  9. 根据权利要求8所述的可逆电磁阀，其中，所述滑块上的所述密封点位设置于所述密封面与所述阀口边沿交叉的两个支撑点连线的内侧。
  10. 根据权利要求1所述的可逆电磁阀，其中，所述密封点位设置在所述密封面的内部。
  11. 根据权利要求10所述的可逆电磁阀，其中，所述密封面包括圆形主面、及设于所述圆形主面上的条形凸面，所述密封点位设置在所述圆形主面与所述条形凸面相连接的连线的中心位置。
  12. 根据权利要求10所述的可逆电磁阀，其中，所述密封面封堵所述阀口时的2倍密封宽度与所述阀口的口径之和，小于所述密封面的外径，其中，所述密封宽度为所述密封点位与所述阀口边沿之间的最短垂直距离。
  13. 根据权利要求1所述的可逆电磁阀，其中，所述密封面为所述滑块上贴合于所述阀座的一侧端面。
  14. 根据权利要求1所述的可逆电磁阀，其中，所述可逆电磁阀包括阀体和阀芯组件，所述阀芯组件包括所述滑块及活塞，所述阀体具有阀腔，所述阀芯组件能够在所述阀腔中运动；所述阀腔内设有中间端盖，所述阀体的两端分别设有第一端盖及第二端盖，所述阀腔包括第一腔、第二腔及第三腔，所述第一端盖、所述阀体及所述阀芯组件配合形成所述第一腔，所述阀芯组件、所述中间端盖及所述阀体形成所述第二腔，所述阀芯组件、所述阀体及所述第二端盖形成所述第三腔。
  15. 根据权利要求14所述的可逆电磁阀，其中，所述阀体上开设有第一孔及第二孔，所述第一孔与所述第二腔连通，所述第二孔与所述第三腔连通，所述第一孔内设有第一毛细管，所述第二孔内设有第二毛细管，所述第一毛 细管与所述第二毛细管连接于所述驱动件，以使所述阀芯组件的两侧形成压力差，推动所述阀芯组件移动。
PCT/CN2022/093884 2021-05-20 2022-05-19 一种可逆电磁阀 WO2022242719A1 (zh)

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CN2644802Y (zh) * 2003-06-23 2004-09-29 浙江三花集团有限公司 回转式电磁阀的滑块密封面结构
CN1952453A (zh) * 2005-10-18 2007-04-25 浙江三花制冷集团有限公司 电磁滑动阀
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