WO2024027513A1 - 电磁阀 - Google Patents

电磁阀 Download PDF

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Publication number
WO2024027513A1
WO2024027513A1 PCT/CN2023/108463 CN2023108463W WO2024027513A1 WO 2024027513 A1 WO2024027513 A1 WO 2024027513A1 CN 2023108463 W CN2023108463 W CN 2023108463W WO 2024027513 A1 WO2024027513 A1 WO 2024027513A1
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WO
WIPO (PCT)
Prior art keywords
sealing
valve
solenoid valve
sealing part
groove
Prior art date
Application number
PCT/CN2023/108463
Other languages
English (en)
French (fr)
Inventor
田鹏
陈永杰
陈浙航
金勇�
Original Assignee
浙江盾安人工环境股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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
Publication of WO2024027513A1 publication Critical patent/WO2024027513A1/zh

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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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid

Definitions

  • the present application relates to the technical field of solenoid valves, specifically, to a solenoid valve.
  • the assembly process of the piston in the solenoid valve is as follows: install the sealing ring and the back-up ring on the piston in sequence, and then flange the piston to form a flange part.
  • the flange part first acts on the back-up ring, and then squeezes the sealing ring. , to secure the sealing ring to the piston.
  • the main purpose of this application is to provide a solenoid valve to solve the problem in the related art that leakage easily occurs at the valve port when the solenoid valve is in a closed state.
  • a solenoid valve including: a valve body, including a valve body body and a valve port arranged in the valve body body, the valve body body has an installation cavity; a valve core component, the valve core component can It is movably arranged in the installation cavity to open or close the valve port.
  • the valve core component includes a valve core body and a stopper. The stopper is provided on the end of the valve core body facing the valve port; the sealing structure is sleeved on the valve.
  • the sealing structure On the core body, the sealing structure includes a first sealing part and a second sealing part connected to each other.
  • the second sealing part is located outside the first sealing part; wherein the second sealing part has a recess, and the recess is There is a preset distance between the inner peripheral wall away from the first sealing part and the outer peripheral surface of the second sealing part; or, the inner peripheral wall of the recessed part away from the first sealing part extends to the outer peripheral surface of the second sealing part.
  • the pressing structure is provided between the first sealing part and the stopper part; when the solenoid valve is in a closed state, the second sealing part blocks the valve port; and the pressing structure avoids the recessed part.
  • the above arrangement greatly increases the contact area between the pressing structure and the sealing structure, improving the stopping effect of the pressing structure; on the other hand, it prevents the pressing structure from squeezing the recessed parts and affecting the overall structural strength of the sealing structure, extending the improves the service life of the sealing structure.
  • the recessed portion is a groove.
  • the above arrangement makes the position of the groove more reasonable, avoids contact between the valve body and the groove and affects the sealing performance of the solenoid valve in the closed state, and also improves the structural strength of the sealing structure.
  • the above arrangement makes the structure of the recessed portion simpler, easier to process and realize, and reduces the processing cost of the sealing structure.
  • the sealing structure has a through hole, and the valve core body is inserted through the through hole; the groove is an annular groove, and the annular groove is coaxially arranged with the through hole.
  • the recessed portion is an annular groove, and the sealing structure can fully separate the sealing valve port area and the pressing structure in other areas, thereby further preventing the first sealing portion from being deformed and affecting the second sealing portion.
  • the above arrangement makes the processing of the recess easier and simpler, and reduces the processing cost of the sealing structure.
  • the sealing structure has a through hole, and the valve core body is inserted through the through hole;
  • the groove includes arc-shaped groove segments arranged at intervals along the circumferential direction of the through hole, and each arc-shaped groove segment is coaxially arranged with the through hole.
  • the above settings make the selection of the number of grooves more flexible to meet different use needs and working conditions, and also improve the processing flexibility of workers.
  • the cross section of the groove is polygonal, U-shaped, V-shaped, or semicircular.
  • the above settings make the selection of the cross-sectional shape of the groove more flexible to meet different use needs and working conditions, and also improve the processing flexibility of the staff.
  • the inner peripheral wall of the recessed portion away from the first sealing portion extends to the outer peripheral surface of the second sealing portion, and the connection between the first sealing portion and the second sealing portion forms a step surface.
  • the step surface Located inside the valve port. Since the second sealing part has a recessed part, and the recessed part extends away from the inner peripheral wall of the first sealing part to the outer peripheral surface of the second sealing part, the recessed part can release the pressing force exerted by the stopper part on the first sealing part, thereby preventing The above-mentioned pressing force is transmitted to the part of the second sealing part that is in contact with the convex part to separate the blocking valve port area from the remaining areas on the sealing structure.
  • the second sealing part has an annular groove, the annular groove is connected with the recessed part; along the radial direction of the sealing structure, the annular groove is located outside the step surface.
  • the annular groove and the recess work together to release the extrusion force and further prevent leakage in the sealing structure.
  • the bottom surface of the recess is in contact with the valve body body; the bottom surface and the central axis of the sealing structure are arranged perpendicular to each other.
  • the surface of the first sealing portion away from the valve core body and the bottom surface of the recessed portion are arranged parallel to each other, so that the processing of the sealing structure is easier and simpler, and the processing difficulty is reduced.
  • the second sealing part blocks the valve port.
  • the second sealing part has a recess, and there is a preset distance between the inner circumferential wall of the recessed part away from the first sealing part and the outer circumferential surface of the second sealing part; or, the inner circumferential wall of the recessed part away from the first sealing part extends to
  • the recessed portion on the outer peripheral surface of the second sealing portion can release the pressing force exerted by the stopper portion on the first sealing portion, thereby preventing the above-mentioned pressing force from being transmitted to the portion of the second sealing portion that is in contact with the valve body body.
  • Figure 1 shows a cross-sectional view in one embodiment or some embodiments of a solenoid valve according to the present application
  • Figure 2 shows an enlarged schematic diagram of position A of the solenoid valve in Figure 1;
  • Figure 3 shows a side view of the sealing structure of the solenoid valve in Figure 1;
  • Figure 4 shows a cross-sectional view of the sealing structure in Figure 3;
  • Figure 5 shows an embodiment or a partial enlarged view of some embodiments of a solenoid valve according to the present application
  • Figure 6 shows a side view of the sealing structure of the solenoid valve in Figure 5;
  • FIG. 7 shows a cross-sectional view of the sealing structure in FIG. 6 .
  • valve body 11. Valve body body; 111. Liquid inlet; 112. Liquid outlet; 12. Projection; 20. Valve core components; 21. Valve core body; 22. Stopper; 30. Sealing structure; 31. First sealing portion; 32. Second sealing portion; 321. Recessed portion; 33. Through hole; 34. Step surface; 40. Pressure structure; 50 , static iron core; 60, moving iron core; 70, first spring; 80, second spring; 90, cover plate; 100, conduit.
  • this application provides a solenoid valve.
  • the solenoid valve includes a valve body 10 , a valve core component 20 , a sealing structure 30 and a pressing structure 40 .
  • the valve body 10 includes a valve body 11 and a valve port arranged in the valve body 11.
  • the valve body 11 has an installation cavity, a liquid inlet 111 and a liquid outlet 112.
  • the liquid inlet 111 and the liquid outlet 112 are both connected to the valve body 11.
  • the installation cavity is connected.
  • the valve core component 20 is movably disposed in the installation cavity to open or close the valve port.
  • the valve core component 20 includes a valve core body 21 and a stopper 22.
  • the stopper 22 is provided at the end of the valve core body 21 facing the valve port. Ministry.
  • the sealing structure 30 is sleeved on the valve core body 21.
  • the sealing structure 30 includes interconnected The first sealing part 31 and the second sealing part 32 are connected, and the second sealing part 32 is located outside the first sealing part 31 along the radial direction of the sealing structure 30 .
  • the second sealing part 32 has a recessed part 321, and there is a preset distance between the inner peripheral wall of the recessed part 321 away from the first sealing part 31 and the outer peripheral surface of the second sealing part 32; or, the recessed part 321 is far away from the first sealing part 31.
  • the inner peripheral wall extends to the outer peripheral surface of the second sealing portion 32 .
  • the second sealing part 32 blocks the valve port.
  • the second sealing part 32 has the recessed part 321, and there is a preset distance between the inner peripheral wall of the recessed part 321 away from the first sealing part 31 and the outer peripheral surface of the second sealing part 32; or, the recessed part 321 is far away from the first sealing part.
  • the inner peripheral wall of the first sealing portion 31 extends to the outer peripheral surface of the second sealing portion 32.
  • the recessed portion 321 can release the pressing force exerted by the stopper portion 22 on the first sealing portion 31, thereby preventing the above pressing force from being transmitted to the second sealing portion.
  • the portion of the portion 32 that is in contact with the valve body 11 is used to separate the blocking valve port area from the remaining areas on the sealing structure 30. Even if the first sealing portion 31 is deformed, it will not affect the second sealing portion 32. The second sealing part will not deform and can effectively seal at the valve port, thereby solving the problem in related technologies that leakage is likely to occur when the solenoid valve is in a closed state due to excessive extrusion force, and improves the solenoid Valve operational reliability.
  • the valve body 10 includes a protrusion 12 disposed on the valve body 11 , the protrusion 12 is disposed toward the installation cavity to form a valve port, and the valve port communicates with the liquid inlet 111 and the liquid outlet 112 .
  • the second sealing portion 32 is in contact with the convex portion 12 of the valve body 10 to block the valve port.
  • the recessed portion 321 can release the pressing force exerted by the stopper portion 22 on the first sealing portion 31, thereby preventing the above-mentioned pressing force from being transmitted to the portion of the second sealing portion 32 that is in contact with the protruding portion 12, so as to
  • the convex contact area (blocking valve port area) on the sealing structure 30 is separated from the rest of the area.
  • the pressing structure 40 is provided between the first sealing part 31 and the stopper part 22; when the solenoid valve is in the closed state, the convex part 12 is in contact with the second sealing part 32.
  • the pressing structure 40 is arranged to avoid the recess 321 . In this way, the pressing structure 40 is pressed against the first sealing part 31.
  • the above arrangement greatly increases the contact area between the pressing structure 40 and the sealing structure 30, and improves the stopping effect of the pressing structure 40;
  • the pressing structure 40 is prevented from squeezing the recess 321 and thus affecting the overall structural strength of the sealing structure 30 , thereby extending the service life of the sealing structure 30 .
  • the recessed portion 321 is a groove.
  • the groove is located between the convex portion 12 and the pressing structure 40 .
  • the above arrangement makes the position of the groove more reasonable, avoids the contact between the convex portion 12 and the groove and affects the sealing performance of the solenoid valve in the closed state, and also improves the structural strength of the sealing structure 30 .
  • the above arrangement makes the structure of the recessed portion 321 simpler, easier to process and implement, and reduces the processing cost of the sealing structure 30 .
  • the sealing structure 30 has a through hole 33 , and the valve core body 21 is passed through the through hole 33 .
  • the groove is an annular groove, and the annular groove and the through hole 33 are coaxially arranged.
  • the recessed portion 321 is an annular groove, and further prevents the first sealing portion 31 from being deformed and affecting the second sealing portion 32 when the sealing structure 30 fully separates the valve port blocking area and the remaining areas.
  • the above arrangement makes the processing of the recessed portion 321 easier and simpler, and reduces the processing cost of the sealing structure 30 .
  • the sealing structure 30 has a through hole 33, the valve core body 21 is inserted into the through hole 33, and the sealing structure 30 is sleeved on the valve core body 21; the groove includes an edge along the
  • the through hole 33 has arc-shaped groove segments arranged at circumferential intervals. Each arc-shaped groove segment is coaxially arranged with the through hole 33 , and each arc-shaped groove segment is distributed around to form a recess.
  • the number and length of arc-shaped groove segments can be set as required, and there are no special restrictions here. In this way, the above settings make the selection of the groove shape more flexible to meet different use needs and working conditions, and also improve the processing flexibility of the staff.
  • the plurality of grooves are arranged at intervals along the radial direction of the sealing structure 30 .
  • Some or all of the plurality of grooves may be configured as the above-mentioned arcuate groove segments or annular grooves arranged at circumferential intervals.
  • the intervals between the plurality of grooves along the radial direction of the sealing structure 30 may be equal or unequal. In this way, the above settings allow the number and specific arrangement of grooves to be selected more flexibly to meet different use needs and working conditions. It also improves the processing flexibility of workers and expands the range of usage scenarios of the sealing structure.
  • the cross section of the groove is polygonal, U-shaped, V-shaped, or semicircular.
  • the above arrangement makes the selection of the cross-sectional shape of the groove more flexible to meet different use needs and working conditions, and also improves the processing flexibility of the staff.
  • the cross-section of the groove is rectangular, so that the structure of the sealing structure 30 is simpler, easier to process and implement, and reduces the processing cost of the solenoid valve.
  • the solenoid valve also includes a static iron core 50 , a moving iron core 60 , a first spring 70 , a second spring 80 , a cover plate 90 and a conduit 100 .
  • the valve core component 20 is in contact with the second spring 80.
  • the second spring 80 is used to apply elastic force to the valve core component 20.
  • the cover plate 90 is fixedly provided on the valve body 11 and blocks the installation cavity to protect the second spring. 80 for blocking.
  • the conduit 100 is connected to the valve body 10 , and the stationary iron core 50 , the moving iron core 60 and the first spring 70 are all arranged in the conduit 100 .
  • the position of the recess 321 away from the inner peripheral wall of the first sealing part 31 is different.
  • the groove is an annular groove provided on the second sealing part.
  • the position of the annular groove on the second sealing part can be selectively set.
  • the annular groove is provided in the middle of the second sealing part. position, or set close to the outer circumferential position of the second sealing part.
  • the inner peripheral wall of the recessed portion 321 away from the first sealing portion 31 extends to the outer peripheral surface of the second sealing portion 32 , and a step surface 34 is formed at the connection between the first sealing portion 31 and the second sealing portion 32 .
  • the step surface 34 is located in the valve port.
  • the stepped surface 34 is located between the convex portion 12 and the pressing structure 40 .
  • the pressing structure 40 is pressed against the first sealing part 31.
  • the second sealing part 32 contacts the convex part 12 of the valve body 10 to seal the liquid inlet 111. Blocking.
  • the recessed part 321 can exert pressure on the pressing structure 40 on the first sealing part 31
  • the squeezing force on the sealing structure 30 is released to prevent the above-mentioned squeezing force from being transmitted to the part of the second sealing part 32 that is in contact with the convex part 12, so as to separate the blocked valve port area from the remaining areas on the sealing structure 30.
  • the surface of the first sealing portion 31 away from the valve core body 21 protrudes from the surface of the second sealing portion 32 away from the valve core body 21 to further prevent excessive extrusion force from causing
  • the contact area of the convex part and the valve port are far away from each other, causing leakage.
  • the portion of the first sealing portion 31 close to the through hole 33 is provided as a pressing structure pressing area, and the pressing structure pressing area is arranged away from the valve port relative to the convex portion contact area.
  • the second sealing part 32 has an annular groove, and the annular groove communicates with the recess 321 .
  • the annular groove is located outside the step surface 34 . In this way, the annular groove and the concave portion 321 work together to release the extrusion force and further prevent leakage at the contact area of the convex portion.
  • the bottom surface of the recess 321 when the solenoid valve is in the closed state, the bottom surface of the recess 321 is in contact with the valve body body.
  • the bottom surface and the central axis of the sealing structure 30 are arranged perpendicularly to each other. In this way, the surface of the first sealing portion 31 away from the valve core body 21 and the bottom surface of the recessed portion 321 are arranged parallel to each other, so that the processing of the sealing structure 30 is easier and simpler, and the processing difficulty is reduced.
  • the solenoid valve is in a closed state, the bottom surface of the recessed portion 321 is in contact with the convex portion 12 .
  • the second sealing portion blocks the valve port.
  • the second sealing part has a recessed part, and the recessed part is away from the first sealing part and has a preset distance between the inner circumferential wall and the outer circumferential surface of the second sealing part or extends to the outer circumferential surface of the second sealing part, the recessed part can oppose the stopper. release the squeezing force exerted on the first sealing part, thereby preventing the above-mentioned squeezing force from being transmitted to the part of the second sealing part that is in contact with the valve body body, so as to block the valve port area and other parts of the sealing structure.
  • the areas are separated, even if the first sealing part is deformed, it will not have an impact on the second sealing part, thus solving the problem in the related art that leakage is easy to occur at the valve port when the solenoid valve is in a closed state, and improving the operation of the solenoid valve reliability.

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

Abstract

公开了一种电磁阀，包括：阀体（10），包括阀体本体（11）和设置在阀体本体（11）内的阀口，阀体本体（11）内具有安装腔；阀芯部件（20），阀芯部件（20）可活动地设置在安装腔内，以打开或关闭阀口，阀芯部件（20）包括阀芯本体（21）和止挡部（22），止挡部（22）设置在阀芯本体（21）朝向阀口的端部上；密封结构（30），套设在阀芯本体（21）上，密封结构（30）包括相互连接的第一密封部（31）和第二密封部（32），沿密封结构（30）的径向，第二密封部（32）位于第一密封部（31）的外侧；其中，第二密封部（32）具有凹部（321），凹部（321）的远离第一密封部（31）的内周壁与第二密封部（32）的外周面之间具有预设距离；或者，凹部（321）远离第一密封部（31）的内周壁延伸至第二密封部（32）的外周面；能够解决电磁阀处于闭阀状态时易在阀口处发生泄漏的问题。

Description

电磁阀
本申请要求于2022年8月4日提交至中国国家知识产权局、申请号为202222068662.5、申请名称为“电磁阀”的专利申请的优先权。
技术领域
本申请涉及电磁阀技术领域，具体而言，涉及一种电磁阀。
背景技术
目前，电磁阀中活塞的装配工艺如下：在活塞上依次装入密封圈、挡圈，再对活塞进行翻边以形成翻边部，翻边部先作用在挡圈上，再挤压密封圈，以将密封圈固定在活塞上。
然而，在对活塞进行装配的过程中，存在翻边部过度翻边而导致挡圈对密封圈的挤压力过大的现象，在电磁阀关闭时，上述现象导致密封圈与阀口之间存在缝隙而发生介质泄漏现象，影响电磁阀的正常使用。
申请内容
本申请的主要目的在于提供一种电磁阀，以解决相关技术中电磁阀处于闭阀状态时易在阀口处发生泄漏的问题。
为了实现上述目的，本申请提供了一种电磁阀，包括：阀体，包括阀体本体和设置在阀体本体内的阀口，阀体本体内具有安装腔；阀芯部件，阀芯部件可活动地设置在安装腔内，以打开或关闭阀口，阀芯部件包括阀芯本体和止挡部，止挡部设置在阀芯本体朝向阀口的端部上；密封结构，套设在阀芯本体上，密封结构包括相互连接的第一密封部和第二密封部，沿密封结构的径向，第二密封部位于第一密封部的外侧；其中，第二密封部具有凹部，凹部的远离第一密封部的内周壁与第二密封部的外周面之间具有预设距离；或者，凹部的远离第一密封部的内周壁延伸至第二密封部的外周面。
优选地，压紧结构，设置在第一密封部与止挡部之间；在电磁阀处于闭阀状态时，第二密封部封堵阀口；压紧结构避让凹部设置。上述设置一方面较大程度地增大压紧结构与密封结构的接触面积，提升了压紧结构的止挡效果；另一方面避免压紧结构挤压凹部而影响密封结构的整体结构强度，延长了密封结构的使用寿命。
优选地，凹部的远离第一密封部的内周壁与第二密封部的外周面之间具有预设距离，凹部为凹槽。上述设置使得凹槽的设置位置更加合理，避免阀体本体与凹槽接触而影响电磁阀处于闭阀状态时的密封性，也提升了密封结构的结构强度。同时，上述设置使得凹部的结构更加简单，容易加工、实现，降低了密封结构的加工成本。
优选地，密封结构具有通孔，阀芯本体穿设在通孔上；凹槽为环形槽，环形槽与通孔同轴设置。凹部为环形槽，进而在密封结构对封堵阀口区域和其余区域压紧结构进行充分地分开，进一步防止第一密封部发生变形时对第二密封部产生影响。同时，上述设置使得凹部的加工更加容易、简便，降低了密封结构的加工成本。
优选地，密封结构具有通孔，阀芯本体穿设在通孔上；凹槽包括沿通孔的周向间隔设置的弧形槽段，各弧形槽段与通孔均同轴设置。上述设置使得凹槽的形状选取更加灵活，以满足不同的使用需求和工况，也提升了工作人员的加工灵活性。
优选地，凹槽为一个；或者，凹槽为多个，多个凹槽沿密封结构的径向间隔设置。上述设置使得凹槽的个数选取更加灵活，以满足不同的使用需求和工况，也提升了工作人员的加工灵活性。
优选地，凹槽的横截面为多边形、或U形、或V形、或半圆形。上述设置使得凹槽的横截面的形状选取更加灵活，以满足不同的使用需求和工况，也提升了工作人员的加工灵活性。
优选地，凹部的远离第一密封部的内周壁延伸至第二密封部的外周面，第一密封部与第二密封部的连接处形成台阶面，在电磁阀处于闭阀状态时，台阶面位于阀口内。由于第二密封部具有凹部，且凹部远离第一密封部的内周壁延伸至第二密封部的外周面，凹部能够对止挡部施加在第一密封部上的挤压力进行释放，进而避免上述挤压力传递至第二密封部上与凸部相接触的部分，以将密封结构上的封堵阀口区域和其余区域分开，即使第一密封部发生变形也不会对第二密封部产生影响，进而解决了相关技术中电磁阀处于闭阀状态时易在阀口处发生泄漏的问题，提升了电磁阀的运行可靠性。
优选地，第二密封部具有环形槽，环形槽与凹部连通；沿密封结构的径向，环形槽位于台阶面的外侧。环形槽和凹部共同作用，以对挤压力进行释放，进一步防止密封结构上发生泄露。
优选地，在电磁阀处于闭阀状态时，凹部的底面与阀体本体相接触；底面与密封结构的中心轴线相互垂直设置。第一密封部远离阀芯本体的表面与凹部的底面相互平行设置，以使密封结构的加工更加容易、简便，降低了加工难度。
应用本申请的技术方案，在电磁阀处于闭阀状态时，第二密封部封堵阀口。这样，由于第二密封部具有凹部，且凹部的远离第一密封部的内周壁与第二密封部的外周面之间有预设距离；或者，凹部的远离第一密封部的内周壁延伸至第二密封部的外周面，凹部能够对止挡部施加在第一密封部上的挤压力进行释放，进而避免上述挤压力传递至第二密封部上与阀体本体相接触的部分，以将密封结构上的封堵阀口区域和其余区域分开，即使第一密封部发生变形也不会对第二密封部产生影响，进而解决了相关技术中电磁阀处于闭阀状态时易在阀口处发生泄漏的问题，提升了电磁阀的运行可靠性。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了根据本申请的电磁阀的一个实施例或者一些实施例中的剖视图；
图2示出了图1中的电磁阀的A处放大示意图；
图3示出了图1中的电磁阀的密封结构的侧视图；
图4示出了图3中的密封结构的剖视图；
图5示出了根据本申请的电磁阀的一个实施例或者一些实施例中的局部放大图；
图6示出了图5中的电磁阀的密封结构的侧视图；
图7示出了图6中的密封结构的剖视图。
其中，上述附图包括以下附图标记：
10、阀体；11、阀体本体；111、进液口；112、出液口；12、凸部；20、阀芯部件；21、
阀芯本体；22、止挡部；30、密封结构；31、第一密封部；32、第二密封部；321、凹部；33、通孔；34、台阶面；40、压紧结构；50、静铁芯；60、动铁芯；70、第一弹簧；80、第二弹簧；90、盖板；100、导管。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
需要指出的是，除非另有指明，本申请使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。
在本申请中，在未作相反说明的情况下，使用的方位词如“上、下”通常是针对附图所示的方向而言的，或者是针对竖直、垂直或重力方向上而言的；同样地，为便于理解和描述，“左、右”通常是针对附图所示的左、右；“内、外”是指相对于各部件本身的轮廓的内、外，但上述方位词并不用于限制本申请。
为了解决相关技术中电磁阀处于闭阀状态时易在阀口处发生泄漏的问题，本申请提供了一种电磁阀。
如图1至图7所示，电磁阀包括阀体10、阀芯部件20、密封结构30及压紧结构40。阀体10包括阀体本体11和设置在阀体本体11内的阀口，阀体本体11内具有安装腔、进液口111及出液口112，进液口111和出液口112均与安装腔连通。阀芯部件20可活动地设置在安装腔内，以打开或关闭阀口，阀芯部件20包括阀芯本体21和止挡部22，止挡部22设置在阀芯本体21朝向阀口的端部上。密封结构30套设在阀芯本体21上，密封结构30包括相互连 接的第一密封部31和第二密封部32，沿密封结构30的径向，第二密封部32位于第一密封部31的外侧。其中，第二密封部32具有凹部321，凹部321的远离第一密封部31的内周壁与第二密封部32的外周面之间具有预设距离；或者，凹部321的远离第一密封部31的内周壁延伸至第二密封部32的外周面。
应用上述技术方案，在电磁阀处于闭阀状态时，第二密封部32封堵阀口。这样，由于第二密封部32具有凹部321，且凹部321的远离第一密封部31的内周壁与第二密封部32的外周面之间具有预设距离；或者，凹部321的远离第一密封部31的内周壁延伸至第二密封部32的外周面，凹部321能够对止挡部22施加在第一密封部31上的挤压力进行释放，进而避免上述挤压力传递至第二密封部32上与阀体本体11相接触的部分，以将密封结构30上的封堵阀口区域和其余区域分开，即使第一密封部31发生变形也不会对第二密封部32产生影响，第二密封部不会产生形变能够有效封堵在阀口处，进而解决了相关技术中由于挤压力过大导致电磁阀处于闭阀状态时易在阀口处发生泄漏的问题，提升了电磁阀的运行可靠性。
在一些实施例中，阀体10包括设置在阀体本体11上的凸部12，凸部12朝向安装腔设置形成阀口，阀口连通进液口111和出液口112。具体地，第二密封部32与阀体10的凸部12相接触，以对阀口进行封堵。这样，凹部321能够对止挡部22施加在第一密封部31上的挤压力进行释放，进而避免上述挤压力传递至第二密封部32上与凸部12相接触的部分，以将密封结构30上的凸部接触区(封堵阀口区)和其余区域分开，即使第一密封部31发生变形也不会对第二密封部32产生影响，进而防止电磁阀处于闭阀状态时易在阀口处发生泄漏，提升了电磁阀的运行可靠性。
具体的，在第二密封部32与凸部12相接触时，阀口被封堵，此时处于闭阀状态。
具体的，压紧结构40设置在第一密封部31与止挡部22之间；在电磁阀处于闭阀状态时，凸部12与第二密封部32相接触。压紧结构40避让凹部321设置。这样，压紧结构40压接在第一密封部31上，上述设置一方面较大程度地增大压紧结构40与密封结构30的接触面积，提升了压紧结构40的止挡效果；另一方面避免压紧结构40挤压凹部321而影响密封结构30的整体结构强度，延长了密封结构30的使用寿命。
如图1至图4所示，在一些实施例中，凹部321的远离第一密封部31的内周壁与第二密封部32的外周面之间具有预设距离，凹部321为凹槽，在电磁阀处于闭阀状态时，凹槽位于凸部12与压紧结构40之间。这样，上述设置使得凹槽的设置位置更加合理，避免凸部12与凹槽接触而影响电磁阀处于闭阀状态时的密封性，也提升了密封结构30的结构强度。同时，上述设置使得凹部321的结构更加简单，容易加工、实现，降低了密封结构30的加工成本。
在一些实施例中，密封结构30具有通孔33，阀芯本体21穿设在通孔33上。凹槽为环形槽，环形槽与通孔33同轴设置。这样，凹部321为环形槽，进而在密封结构30对封堵阀口区域和其余区域进行充分地分开，进一步防止第一密封部31发生变形时对第二密封部32产生影响。同时，上述设置使得凹部321的加工更加容易、简便，降低了密封结构30的加工成本。
需要说明的是，凹槽的结构不限于此，可根据工况和使用需求进行调整。
在附图中未示出的其他实施方式中，密封结构30具有通孔33，阀芯本体21穿设在通孔33内，将密封结构30套设在阀芯本体21上；凹槽包括沿通孔33的周向间隔设置的弧形槽段，各弧形槽段与通孔33均同轴设置，各弧形槽段环绕分布构成凹部。弧形槽段的数量和长度可以按需设置，这里不做特殊限定。这样，上述设置使得凹槽的形状选取更加灵活，以满足不同的使用需求和工况，也提升了工作人员的加工灵活性。
可选地，凹槽为一个；或者，凹槽为多个，多个凹槽沿密封结构30的径向间隔设置。多个凹槽中的部分或者全部，可以选择设置为上述的周向间隔布置的弧形槽段或者环形槽。除此之外，多个凹槽之间沿密封结构30径向之间的间隔可以相等或者不等。这样，上述设置使得凹槽的个数及具体布置可以选取更加灵活，以满足不同的使用需求和工况，也提升了工作人员的加工灵活性以及扩大密封结构的使用场景范围。
在一些实施例中，凹槽为一个，以使密封结构30的结构更加简单，容易加工、实现，降低了电磁阀的加工成本。
可选地，凹槽的横截面为多边形、或U形、或V形、或半圆形。这样，上述设置使得凹槽的横截面的形状选取更加灵活，以满足不同的使用需求和工况，也提升了工作人员的加工灵活性。
在一些实施例中，凹槽的横截面为矩形，以使密封结构30的结构更加简单，容易加工、实现，降低了电磁阀的加工成本。
如图1所示，电磁阀还包括静铁芯50、动铁芯60、第一弹簧70、第二弹簧80、盖板90及导管100。其中，阀芯部件20与第二弹簧80接触，第二弹簧80用于向阀芯部件20施加弹性力，盖板90固定设置在阀体本体11上且封堵安装腔，以对第二弹簧80进行封堵。导管100与阀体10连接，静铁芯50、动铁芯60及第一弹簧70均设置在导管100内。
在一些实施例中，凹部321的远离第一密封部31的内周壁的位置不同。换句话说，凹槽为设置在第二密封部上的环形槽，沿密封结构径向，环形槽在第二密封部上的位置可以选择性设置，比如环形槽设在第二密封部的中间位置，或者设置在逼近第二密封部的外周位置。
如图5至图7所示，凹部321的远离第一密封部31的内周壁延伸至第二密封部32的外周面，第一密封部31与第二密封部32的连接处形成台阶面34，在电磁阀处于闭阀状态时，台阶面34位于阀口内。其中，在电磁阀处于闭阀状态时，台阶面34位于凸部12与压紧结构40之间。
具体地，压紧结构40压接在第一密封部31上，在电磁阀处于闭阀状态时，第二密封部32与阀体10的凸部12相接触，以对进液口111进行封堵。这样，由于第二密封部32具有凹部321，且凹部321远离第一密封部31的内周壁延伸至第二密封部32的外周面，凹部321能够对压紧结构40施加在第一密封部31上的挤压力进行释放，进而避免上述挤压力传递至第二密封部32上与凸部12相接触的部分，以将密封结构30上的封堵阀口区域和其余区域分开， 即使第一密封部31发生变形也不会对第二密封部32产生影响，进而解决了相关技术中电磁阀处于闭阀状态时易在阀口处发生泄漏的问题，提升了电磁阀的运行可靠性。
在一些实施例中，沿密封结构30的轴向，第一密封部31远离阀芯本体21的表面凸出于第二密封部32远离阀芯本体21的表面，进一步防止挤压力过大导致凸部接触区和阀口远离二产生泄露。第一密封部31靠近通孔33的部分设置成压紧结构压紧区，且压紧结构压紧区相对于凸部接触区远离阀口设置。
可选地，第二密封部32具有环形槽，环形槽与凹部321连通。沿密封结构30的径向，环形槽位于台阶面34的外侧。这样，环形槽和凹部321共同作用，以对挤压力进行释放，进一步防止凸部接触区处发生泄露。
在一些实施例中，在电磁阀处于闭阀状态时，凹部321的底面与阀体本体相接触。底面与密封结构30的中心轴线相互垂直设置。这样，第一密封部31远离阀芯本体21的表面与凹部321的底面相互平行设置，以使密封结构30的加工更加容易、简便，降低了加工难度。其中，在电磁阀处于闭阀状态时，凹部321的底面与凸部12相接触。
从以上的描述中，可以看出，本申请上述的实施例实现了如下技术效果：
在电磁阀处于闭阀状态时，第二密封部封堵阀口。这样，由于第二密封部具有凹部，且凹部远离第一密封部的内周壁与第二密封部的外周面之间具有预设距离或者延伸至第二密封部的外周面，凹部能够对止挡部施加在第一密封部上的挤压力进行释放，进而避免上述挤压力传递至第二密封部上与阀体本体相接触的部分，以将密封结构上的封堵阀口区域和其余区域分开，即使第一密封部发生变形也不会对第二密封部产生影响，进而解决了相关技术中电磁阀处于闭阀状态时易在阀口处发生泄漏的问题，提升了电磁阀的运行可靠性。
显然，上述所描述的实施例仅仅是本申请一部分的实施例，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，都应当属于本申请保护的范围。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、工作、器件、组件和/或它们的组合。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施方式能够以除了在这里图示或描述的那些以外的顺序实施。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种电磁阀，其特征在于，包括：
    阀体(10)，包括阀体本体(11)和设置在所述阀体本体(11)内的阀口，所述阀体本体(11)内具有安装腔；
    阀芯部件(20)，所述阀芯部件(20)可活动地设置在所述安装腔内，以打开或关闭所述阀口，所述阀芯部件(20)包括阀芯本体(21)和止挡部(22)，所述止挡部(22)设置在所述阀芯本体(21)朝向所述阀口的端部上；
    密封结构(30)，套设在所述阀芯本体(21)上，所述密封结构(30)包括相互连接的第一密封部(31)和第二密封部(32)，沿所述密封结构(30)的径向，所述第二密封部(32)位于所述第一密封部(31)的外侧；
    其中，所述第二密封部(32)具有凹部(321)，所述凹部(321)的远离所述第一密封部(31)的内周壁与所述第二密封部(32)的外周面之间具有预设距离；或者，所述凹部(321)的远离所述第一密封部(31)的内周壁延伸至所述第二密封部(32)的外周面。
  2. 根据权利要求1所述的电磁阀，其特征在于，所述电磁阀还包括：
    压紧结构(40)，设置在第一密封部(31)与所述止挡部(22)之间；在所述电磁阀处于闭阀状态时，所述第二密封部(32)封堵所述阀口；所述压紧结构(40)避让所述凹部(321)设置。
  3. 根据权利要求2所述的电磁阀，其特征在于，所述凹部(321)的远离所述第一密封部(31)的内周壁与所述第二密封部(32)的外周面之间具有预设距离，所述凹部(321)为凹槽。
  4. 根据权利要求3所述的电磁阀，其特征在于，所述密封结构(30)具有通孔(33)，所述阀芯本体(21)穿设在所述通孔(33)上；所述凹槽为环形槽，所述环形槽与所述通孔(33)同轴设置。
  5. 根据权利要求3所述的电磁阀，其特征在于，所述密封结构(30)具有通孔(33)，所述阀芯本体(21)穿设在所述通孔(33)上；所述凹槽包括沿所述通孔(33)的周向间隔设置的弧形槽段，各所述弧形槽段与所述通孔(33)均同轴设置。
  6. 根据权利要求3所述的电磁阀，其特征在于，所述凹槽为一个；或者，所述凹槽为多个，多个所述凹槽沿所述密封结构(30)的径向间隔设置。
  7. 根据权利要求3所述的电磁阀，其特征在于，所述凹槽的横截面为多边形、或U形、或V形、或半圆形。
  8. 根据权利要求2所述的电磁阀，其特征在于，所述凹部(321)的远离所述第一密封部(31)的内周壁延伸至所述第二密封部(32)的外周面，所述第一密封部(31)与所述第二密 封部(32)的连接处形成台阶面(34)，在所述电磁阀处于所述闭阀状态时，所述台阶面(34)位于所述阀口内。
  9. 根据权利要求8所述的电磁阀，其特征在于，所述第二密封部(32)具有环形槽，所述环形槽与所述凹部(321)连通；沿所述密封结构(30)的径向，所述环形槽位于所述台阶面(34)的外侧。
  10. 根据权利要求8所述的电磁阀，其特征在于，在所述电磁阀处于所述闭阀状态时，所述凹部(321)的底面与所述阀体本体(11)相接触；所述凹部的底面与所述密封结构(30)的中心轴线相互垂直设置。
PCT/CN2023/108463 2022-08-04 2023-07-20 电磁阀 WO2024027513A1 (zh)

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CN216742851U (zh) * 2021-12-23 2022-06-14 盾安汽车热管理科技有限公司 电磁阀
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