WO2019114557A1 - Solenoid valve, and car seat and car door having same - Google Patents

Solenoid valve, and car seat and car door having same Download PDF

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Publication number
WO2019114557A1
WO2019114557A1 PCT/CN2018/118171 CN2018118171W WO2019114557A1 WO 2019114557 A1 WO2019114557 A1 WO 2019114557A1 CN 2018118171 W CN2018118171 W CN 2018118171W WO 2019114557 A1 WO2019114557 A1 WO 2019114557A1
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WO
WIPO (PCT)
Prior art keywords
iron core
solenoid valve
coil
static iron
valve according
Prior art date
Application number
PCT/CN2018/118171
Other languages
French (fr)
Chinese (zh)
Inventor
龚红宇
冯臣
陈家辉
陈静
Original Assignee
广东肇庆爱龙威机电有限公司
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Application filed by 广东肇庆爱龙威机电有限公司 filed Critical 广东肇庆爱龙威机电有限公司
Publication of WO2019114557A1 publication Critical patent/WO2019114557A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/421—Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves
    • 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 invention relates to the field of electric control, and more particularly to a solenoid valve and a vehicle seat that performs specific control using a solenoid valve.
  • a solenoid valve is generally provided with a housing in which a coil for generating a magnetic field when energized is disposed.
  • 10 and 11 of the present specification illustrate a schematic diagram of a typical solenoid valve in the prior art, in which the winding of the coil is not illustrated for the sake of simplicity of the view, and only the bobbin is illustrated.
  • the coil has a through shaft hole through which a moving iron core movable therein is disposed.
  • a static iron core is fixedly mounted at one end of the housing.
  • the moving iron core is disposed outside the casing of the spring disposed at one of the ends of the casing, so that the movable iron core is spaced apart from the static iron core by a certain distance, as shown in FIG.
  • the coil is energized, an electromagnetic attraction is generated between the moving iron core and the static iron core, and the moving iron core is driven to overcome the force of the spring.
  • the moving iron core finally moves to the static iron core under the action of the magnetic field and the static iron core, the two have the greatest adsorption force and are tightly attracted together, as shown in FIG.
  • the solenoid valve is often used in the automotive field for electric control of vehicle components, such as power seat adjustment, electric door control, and the like. At this time, the solenoid valve is used as a power mechanism, and the moving iron core is connected to the control actuator, and finally the working position or state of the seat or the door can be finally controlled by controlling the closing or opening of the current.
  • the solenoid valve comprises a housing on which is disposed a coil that generates a magnetic field when energized, and a static iron core that is fixedly mounted relative to the housing and is in the magnetic field And a moving iron core disposed to be moved by the suction force of the static iron core in the magnetic field and sucked with the static iron core; wherein, in the static iron core and the moving iron core One of the protrusions is provided, and the other is provided with a groove matching the convex portion; and in at least part of the stroke of the moving iron core moving toward the static iron core, the convex portion is located in the groove Inside.
  • the moving iron core of the present invention has a larger electromagnetic driving force.
  • the solenoid valve can be driven with a smaller current to avoid serious heat generation of the solenoid valve.
  • the coil and other solenoid valve mechanisms can be designed to be smaller to provide the same driving force and improve the driving efficiency of the solenoid valve.
  • the end surface of the convex portion is at the same stroke position as the opening of the concave groove. Since the end face of the static iron core convex portion is located on the same plane as the movable iron core groove opening, the static iron core convex portion has the largest suction force to the movable iron core, thereby effectively increasing the driving force of the electromagnetic valve at the time of starting.
  • the protrusion extends along the axis on the static iron core.
  • the groove extends along the axis on the moving iron core.
  • the static iron core and the moving iron core are arranged coaxially.
  • the convex portion is an equal-section cylinder.
  • the convex portion of the static iron core and the groove of the movable iron core have the same cross-sectional dimension.
  • the convex portion includes a first section and a second section extending from the first section, and the first section has a cross-sectional area smaller than a cross-sectional area of the second section.
  • the present invention is also directed to a car seat comprising a pneumatic massage system, the charge and discharge gas switch of the pneumatic massage system comprising the above described solenoid valve in accordance with the present invention.
  • the present invention is also directed to a vehicle seat including a seat folding system, the folding switch of the seat folding system comprising the above described solenoid valve in accordance with the present invention.
  • the present invention is also directed to an automobile door including a door lock system including the above described solenoid valve in accordance with the present invention.
  • Figure 1 shows a perspective schematic view of an exemplary solenoid valve in accordance with the present invention
  • Figure 2 is an exploded perspective view of the solenoid valve shown in Figure 1;
  • Figure 3 is a perspective view of the solenoid valve of Figure 1 when not energized;
  • Figure 4 is a cross-sectional view of Figure 3;
  • Figure 5 is a perspective view of the solenoid valve of Figure 1 when energized and closed;
  • Figure 6 is a cross-sectional view of Figure 5;
  • Figure 7 is a perspective view of the static iron core of the solenoid valve shown in Figure 1;
  • Figure 8 is an alternative embodiment of the static iron core of Figure 7;
  • Figure 9 is another alternative embodiment of the static iron core of Figure 7;
  • Figure 10 is a cross-sectional view showing a typical solenoid valve of the prior art, which is in an unenergized state;
  • Figure 11 is a schematic cross-sectional view of the solenoid valve of Figure 10 when energized closed;
  • Figure 12 is a comparison of electromagnetic force tests of the solenoid valve according to the present invention and the prior art solenoid valve of Figures 10 and 11.
  • ⁇ RTI ID 0.0>1 ⁇ / RTI> ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt;
  • first”, “second”, etc. which may be used in the following description, are not intended to limit any order, and are merely intended to distinguish between individual parts, parts, structures, elements, etc., and such separate parts, parts
  • the structure, components, and elements may be the same, similar, or different.
  • descriptions of orientations that may be used in the following descriptions such as “upper”, “lower”, “inner”, “outer”, “left”, “right”, “radial”, “axial”, etc., Unless otherwise stated, it is only for convenience of description, and no limitation is intended to the technical solution of the invention.
  • the solenoid valve includes a housing 10 in which a coil 20 for generating a magnetic field upon energization is disposed.
  • the coil 20 has a through shaft hole.
  • the coil 20 has a circular cross section, while the housing 10 is also substantially cylindrical in shape to cooperate with each other to form a more compact structure, although coils and shells having other configurations are also contemplated in certain circumstances. body.
  • the coil 20 is arranged with a moving iron core 40 on a first end above the orientation shown in the figure.
  • the moving iron core 40 includes a substantially rod-shaped rod body and a flange 41 at one of the ends of the rod body.
  • the illustrated rod is inserted into the coil shaft bore from the first end of the coil 20.
  • the body of the moving iron core 40 has a cross-sectional dimension that matches the coil shaft hole to be movable therein.
  • the rod of the movable iron core 40 is provided with a spring 50, one end of which abuts the first end of the coil 20 and the other end abuts against the movable core flange.
  • the flange may also have a different configuration than that illustrated in the figures and may be disposed at a non-end position of the moving iron core.
  • the coil 20 is fixedly disposed with a static iron core 30 on a second end opposite to the first end.
  • the static iron core 30 includes a disk body having a substantially disk shape, and a convex portion 60 is formed on a disk surface of the disk body facing the movable iron core body.
  • the projection 60 projects into the shaft bore of the coil 20 and opposes the body of the moving iron core 40 that also extends into the shaft bore.
  • the rod body of the movable iron core 40 is provided with a groove 70 on the end surface facing the convex portion 60.
  • the convex portion 60 may be disposed on the movable iron core 40, and the concave groove 70 is disposed on the static iron core 30.
  • FIGS. 3 and 4 illustrate an unpowered state and an energized state of a solenoid valve in accordance with the present invention.
  • the spring 50 applies pressure to the flange of the movable core 40 such that the lower end surface of the moving core 40 is separated from the upper end surface of the stationary core 30 by a certain distance.
  • the moving iron core 40 moves toward the stationary iron core 30 along the coil shaft hole against the pressure of the spring 50 under the drive of the electromagnetic field generated by the coil 20.
  • the convex portion 60 of the static iron core 30 is accommodated in the recess 70 of the movable iron core 40 during the movement of the moving iron core 40 toward the stationary iron core 30 in the coil shaft hole. Finally, when the movable iron core 40 finally moves to abut against the static iron core 30 under the double action of the coil magnetic force and the static iron core magnetic force, the two have the greatest adsorption force and are tightly attracted together.
  • the static iron core suction force received by the movable iron core 40 includes the convex portion on the static iron core disk body in addition to the suction force of the static iron core 30 disk body. 60 suction.
  • the end surface 61 of the convex portion 60 of the static iron core 30 and the recess 70 are The openings 71 are located at the same stroke position, that is, on the same plane.
  • the convex portion 60 and the moving iron core 40 have a larger suction force, thereby effectively increasing the driving force of the electromagnetic valve at the time of starting.
  • the length of the projection 60 may be set to be longer or shorter so that the moving core 40 moves toward the stationary core 30.
  • the end face 61 of the convex portion 60 of the static iron core 30 and the opening 71 of the recess 70 are not in the same stroke position.
  • the depth of the groove 70 on the movable iron core 40 must be sufficient to accommodate the convex portion 60, so that the movable iron core 40 can finally be attached to the static iron core 30 and sucked tightly with maximum suction force. combine together.
  • Figure 7 is a perspective view of the static iron core of Figure 1, from which it can be seen that the convex portion 60 is substantially cylindrical and projects from the disk body of the static iron core 30 along the axis. To this end, the recess 70 on the moving iron core 40 is correspondingly arranged to extend along the axis on the moving iron core 40.
  • the convex portion may be provided in other forms, such as the prism shape shown in Fig. 8, and may be arranged in a step shape as shown in Fig. 9, including the first section 62 and the slave.
  • the second section 63 of the first section 62 projects and the cross-sectional area of the first section 62 is smaller than the cross-sectional area of the second section 63.
  • Figure 12 shows electromagnetic force testing of a particular solenoid valve in accordance with the present invention and a prior art solenoid valve in accordance with Figures 10-11, respectively.
  • the working stroke of the moving iron core of the solenoid valve is set to 5 mm, that is, the moving iron core is driven from the coil to move toward the static iron core until the moving iron core and the static iron core are sucked, and the moving iron core needs to be Move 5mm, in other words, set the distance between the moving iron core body and the static iron core body to 5mm.
  • the length of the convex portion of the static iron core and the groove depth of the movable iron core are both set to 3 mm.
  • the coils of the two solenoid valves are respectively energized, and the moving iron core moves toward the static iron core in the coil shaft hole, and at the same time, the electromagnetic force received by the moving iron core in the total 5 mm stroke is drawn, and the electromagnetic force shown in FIG. 12 is drawn. Force test chart.
  • the moving iron core of the solenoid valve according to the present invention has a greater electromagnetic force than the prior art during most of the entire stroke.
  • the end surface 61 of the convex portion 60 of the static iron core 30 in the present invention is located at the same stroke position as the opening 71 of the recess 70 of the movable iron core 40, that is, at the same On one plane, the electromagnetic force of the moving iron core 40 of the solenoid valve according to the present invention is significantly greater than that of the prior art.
  • the solenoid valve can be arranged such that, at the time of starting, the end face 61 of the convex portion 60 of the static iron core 30 and the opening 71 of the groove 70 of the movable iron core 40 are located at the same stroke position, that is, when they are on the same plane. Thereby the solenoid valve has a greater driving force at startup.
  • the solenoid valve according to the present invention can be applied to various applications, such as in a car seat.
  • the solenoid valve according to the invention can be used in a pneumatic massage system for a car seat, by which the charge and discharge switch of the pneumatic massage system is driven.
  • the solenoid valve can be used in a seat folding system of an automobile by which the folding switch of the seat folding system is driven.
  • the moving iron core of the solenoid valve is usually connected to an actuator such as a power seat or a door, and finally the working position or state of the seat or the door can be finally controlled by controlling the closing or opening of the solenoid valve current. Wait.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

A solenoid valve, comprising a housing (10). The housing (10) is provided with: a coil (20) that generates a magnetic field during turn-on; a static iron core (30) fixedly mounted with respect to the coil (20) and located in the magnetic field; and a movable iron core (40) that moves with respect to the coil (20) under the action of the magnetic field and attracts the static iron core (30). One of the static iron core (30) and the movable iron core (40) is provided with a protrusion (60), and the other one is provided with a slot (70) matching the protrusion (60). In at least part of the stroke of movement of the movable iron core (40) to the movable iron core (40), the protrusion (60) is located in the slot (70). Also provided are a car seat and a car door having the solenoid valve. Compared with the prior art, the solenoid valve can provide greater electromagnetic drive efficiency.

Description

电磁阀及具有该电磁阀的汽车座椅和汽车车门Solenoid valve and car seat and automobile door having the same
本申请要求于2017年12月12日递交的中国专利申请第201711319018.8号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。The present application claims priority to Chinese Patent Application No. JP-A No. No. No. No. No. No. No. No. No. No. No. No. No. No.
技术领域Technical field
本发明涉及电动控制领域，尤其涉及电磁阀和使用电磁阀实施具体控制的汽车座椅。The present invention relates to the field of electric control, and more particularly to a solenoid valve and a vehicle seat that performs specific control using a solenoid valve.
背景技术Background technique
在现有技术中，电磁阀一般设置有壳体，壳体内布置有用于在通电时产生磁场的线圈。本说明书附图10和11例示了现有技术中的典型电磁阀的原理图，其中为使视图内容更为简洁而没有画出线圈绕线，仅以线圈骨架进行示意。线圈具有贯通的轴孔，轴孔内布置有可在其中移动的动铁芯。此外，壳体的一端固定安装有静铁芯。在通常情况下，动铁芯被布置于壳体的其中一个端部的弹簧顶出至壳体之外，从而动铁芯与静铁芯间隔一定的距离，见图10。线圈在通电之后,动铁芯与静铁芯之间会产生电磁吸力,驱动动铁芯克服弹簧的作用力。当动铁芯在磁场和静铁芯的作用下最终移动到与静铁芯贴合时，两者具有最大的吸附力并紧紧吸合在一起，见图11。In the prior art, a solenoid valve is generally provided with a housing in which a coil for generating a magnetic field when energized is disposed. 10 and 11 of the present specification illustrate a schematic diagram of a typical solenoid valve in the prior art, in which the winding of the coil is not illustrated for the sake of simplicity of the view, and only the bobbin is illustrated. The coil has a through shaft hole through which a moving iron core movable therein is disposed. In addition, a static iron core is fixedly mounted at one end of the housing. Under normal circumstances, the moving iron core is disposed outside the casing of the spring disposed at one of the ends of the casing, so that the movable iron core is spaced apart from the static iron core by a certain distance, as shown in FIG. After the coil is energized, an electromagnetic attraction is generated between the moving iron core and the static iron core, and the moving iron core is driven to overcome the force of the spring. When the moving iron core finally moves to the static iron core under the action of the magnetic field and the static iron core, the two have the greatest adsorption force and are tightly attracted together, as shown in FIG.
所述电磁阀经常在汽车领域中被用于对车辆部件实施电动控制，比如电动座椅调节、电动车门控制等。此时，电磁阀被用作动力机构，其动铁芯连接控制执行件，进而可以通过控制电流的闭合或断开而最终控制座椅或车门的工作位置或状态等。The solenoid valve is often used in the automotive field for electric control of vehicle components, such as power seat adjustment, electric door control, and the like. At this time, the solenoid valve is used as a power mechanism, and the moving iron core is connected to the control actuator, and finally the working position or state of the seat or the door can be finally controlled by controlling the closing or opening of the current.
发明内容Summary of the invention
本发明的目的在于针对上述现有技术提供一种改进的电磁阀，其能够在相同体积或功耗的情况下提供更大的驱动力。It is an object of the present invention to provide an improved solenoid valve for the above prior art that is capable of providing greater driving force with the same volume or power consumption.
为此，根据本发明的电磁阀包括壳体，该壳体上设置有：线圈，该线圈在通电时产生磁场；静铁芯，该静铁芯相对所述壳体固定安装并处于所述磁场内；和动铁芯，该动铁芯被设置为在所述磁场中受到所述静铁芯的吸力而移动并与静铁芯吸合；其中，在所述静铁芯和动铁芯中，其中一个设置有凸部，另一个设置有与所述凸部匹配的凹槽；并且在所述动铁芯向静铁芯移动过程的至少部分行程中，所述凸部位于所述凹槽内。To this end, the solenoid valve according to the present invention comprises a housing on which is disposed a coil that generates a magnetic field when energized, and a static iron core that is fixedly mounted relative to the housing and is in the magnetic field And a moving iron core disposed to be moved by the suction force of the static iron core in the magnetic field and sucked with the static iron core; wherein, in the static iron core and the moving iron core One of the protrusions is provided, and the other is provided with a groove matching the convex portion; and in at least part of the stroke of the moving iron core moving toward the static iron core, the convex portion is located in the groove Inside.
相比现有技术，本发明的动铁芯具有更大的电磁驱动力。从而，可以以更小的电流来驱动电磁阀，避免电磁阀发热严重。或者，可以将线圈以及其他的电磁阀机构设计得更小来提供同样的驱动力，改善电磁阀的驱动效率。Compared with the prior art, the moving iron core of the present invention has a larger electromagnetic driving force. Thereby, the solenoid valve can be driven with a smaller current to avoid serious heat generation of the solenoid valve. Alternatively, the coil and other solenoid valve mechanisms can be designed to be smaller to provide the same driving force and improve the driving efficiency of the solenoid valve.
优选地，在所述动铁芯朝静铁芯移动过程的开始，所述凸部的端面与所述凹槽的开口处于相同的行程位置。由于静铁芯凸部的端面与动铁芯凹槽开口位于同一个平面上时，静铁芯凸部对动铁芯具有最大的吸力，从而有效增加了电磁阀在启动时的驱动力。Preferably, at the beginning of the moving process of the movable iron core toward the static iron core, the end surface of the convex portion is at the same stroke position as the opening of the concave groove. Since the end face of the static iron core convex portion is located on the same plane as the movable iron core groove opening, the static iron core convex portion has the largest suction force to the movable iron core, thereby effectively increasing the driving force of the electromagnetic valve at the time of starting.
优选地，所述凸部在所述静铁芯上沿轴线延伸。Preferably, the protrusion extends along the axis on the static iron core.
优选地，所述凹槽在所述动铁芯上沿轴线延伸。Preferably, the groove extends along the axis on the moving iron core.
优选地，所述静铁芯和动铁芯同轴布置。Preferably, the static iron core and the moving iron core are arranged coaxially.
优选地，所述凸部为等截面柱体。Preferably, the convex portion is an equal-section cylinder.
优选地，所述静铁芯的凸部和动铁芯的凹槽具有相同的横截面尺寸。Preferably, the convex portion of the static iron core and the groove of the movable iron core have the same cross-sectional dimension.
优选地，所述凸部包括第一部段和从该第一部段伸出的第二部段，并且所述第一部段的横截面积小于第二部段的横截面积。Preferably, the convex portion includes a first section and a second section extending from the first section, and the first section has a cross-sectional area smaller than a cross-sectional area of the second section.
在另一个方面中，本发明还涉及一种汽车座椅，包括气动按摩***，所述气动按摩***的充放气开关包括根据本发明的上述电磁阀。In another aspect, the present invention is also directed to a car seat comprising a pneumatic massage system, the charge and discharge gas switch of the pneumatic massage system comprising the above described solenoid valve in accordance with the present invention.
在另一个方面中，本发明还涉及一种汽车座椅，包括座椅折叠***，所述座椅折叠***的折叠开关包括根据本发明的上述电磁阀。In another aspect, the present invention is also directed to a vehicle seat including a seat folding system, the folding switch of the seat folding system comprising the above described solenoid valve in accordance with the present invention.
在又一个方面中，本发明还涉及一种汽车车门,包括门锁***，所述门锁***包括根据本发明的上述电磁阀。In yet another aspect, the present invention is also directed to an automobile door including a door lock system including the above described solenoid valve in accordance with the present invention.
附图说明DRAWINGS
本发明的其他细节及优点将通过下文提供的详细描述而变得显而易见。下文将参照附图来进行详细描述，其中：Other details and advantages of the invention will become apparent from the following detailed description. A detailed description will be made below with reference to the accompanying drawings, in which:
图1示出了根据本发明的一种例示性电磁阀的立体示意图；Figure 1 shows a perspective schematic view of an exemplary solenoid valve in accordance with the present invention;
图2为图1所示电磁阀的分解立体图；Figure 2 is an exploded perspective view of the solenoid valve shown in Figure 1;
图3为图1所示电磁阀在未通电时的立体示意图；Figure 3 is a perspective view of the solenoid valve of Figure 1 when not energized;
图4为图3的截面图；Figure 4 is a cross-sectional view of Figure 3;
图5为图1所示电磁阀在通电闭合时的立体示意图；Figure 5 is a perspective view of the solenoid valve of Figure 1 when energized and closed;
图6为图5的截面图；Figure 6 is a cross-sectional view of Figure 5;
图7为图1所示电磁阀的静铁芯的立体示意图；Figure 7 is a perspective view of the static iron core of the solenoid valve shown in Figure 1;
图8为图7所示静铁芯的替换实施例；Figure 8 is an alternative embodiment of the static iron core of Figure 7;
图9为图7所示静铁芯的另一替换实施例；Figure 9 is another alternative embodiment of the static iron core of Figure 7;
图10示出了现有技术的一种典型电磁阀的截面示意图，其处于未通电状态；Figure 10 is a cross-sectional view showing a typical solenoid valve of the prior art, which is in an unenergized state;
图11为图10所示电磁阀在通电闭合时的截面示意图；Figure 11 is a schematic cross-sectional view of the solenoid valve of Figure 10 when energized closed;
图12为根据本发明的电磁阀与图10和11所示现有技术的电磁阀的电磁力测试对比图。Figure 12 is a comparison of electromagnetic force tests of the solenoid valve according to the present invention and the prior art solenoid valve of Figures 10 and 11.
上述附图所示出的内容仅为举例和示意，而并不严格按照比例予以绘制，也并未完整地绘制出具体使用环境下相关的全部部件或细节。本领域技术人员在明了本发明的原理和构思之后，将能想到在特定的使用环境下为具体实施本发明而需要加入的本领域公知的相关技术内容。The above-mentioned figures are only for the purpose of illustration and illustration, and are not intended to It will be apparent to those skilled in the art <RTI ID=0.0>1 </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;
具体实施方式Detailed ways
在以下描述中可能使用的术语“第一”、“第二”等并不意欲限制任何序位，其目的仅仅在于区分各个独立的部件、零件、结构、元件等，并且这些独立的部件、零件、结构、元件可以相同、类似或者不同。同时，在以下描述中可能使用的关于方位的说明，比如“上”、“下”、“内”、“外”、“左”、“右”、“径向”、“轴向”等，除非具有明确说明，仅为了方便描述， 而无欲对发明技术方案形成任何限定。The terms "first", "second", etc., which may be used in the following description, are not intended to limit any order, and are merely intended to distinguish between individual parts, parts, structures, elements, etc., and such separate parts, parts The structure, components, and elements may be the same, similar, or different. Meanwhile, descriptions of orientations that may be used in the following descriptions, such as "upper", "lower", "inner", "outer", "left", "right", "radial", "axial", etc., Unless otherwise stated, it is only for convenience of description, and no limitation is intended to the technical solution of the invention.
图1和图2以立体图的形式分别示出了根据本发明的一种具体电磁阀的组装图和分解图。该电磁阀包括壳体10，壳体10内布置有用于在通电时产生磁场的线圈20。线圈20具有贯通的轴孔。为使视图内容更为简洁和清楚，图中没有画出复杂的线圈绕线，仅以线圈骨架示意。所述线圈20具有圆形截面，同时壳体10也相应地大致呈圆筒状，以相互配合形成更为紧凑的结构，虽然在特定的情况下也可考虑使用具有其他构型的线圈和壳体。1 and 2 respectively show an assembled view and an exploded view of a specific solenoid valve in accordance with the present invention in a perspective view. The solenoid valve includes a housing 10 in which a coil 20 for generating a magnetic field upon energization is disposed. The coil 20 has a through shaft hole. In order to make the view content more concise and clear, the complex coil windings are not drawn in the figure, only the coil skeleton is indicated. The coil 20 has a circular cross section, while the housing 10 is also substantially cylindrical in shape to cooperate with each other to form a more compact structure, although coils and shells having other configurations are also contemplated in certain circumstances. body.
所述线圈20在如图中所示方位的上方的第一端部上布置有动铁芯40。动铁芯40包括大致为圆杆状的杆体和位于其中一个杆体端部的法兰41。所示杆体从线圈20的所述第一端部***所述线圈轴孔内。所述动铁芯40的杆体具有与线圈轴孔相匹配的截面尺寸，以能在其中移动。此外，动铁芯40的杆体上套装有弹簧50，弹簧50的一端抵接线圈20的所述第一端部，而另一端抵接动铁芯法兰。可以明白，所述法兰也可以具有不同于图中所述构型，并且可以被设置在动铁芯杆体的非端部位置。The coil 20 is arranged with a moving iron core 40 on a first end above the orientation shown in the figure. The moving iron core 40 includes a substantially rod-shaped rod body and a flange 41 at one of the ends of the rod body. The illustrated rod is inserted into the coil shaft bore from the first end of the coil 20. The body of the moving iron core 40 has a cross-sectional dimension that matches the coil shaft hole to be movable therein. In addition, the rod of the movable iron core 40 is provided with a spring 50, one end of which abuts the first end of the coil 20 and the other end abuts against the movable core flange. It will be appreciated that the flange may also have a different configuration than that illustrated in the figures and may be disposed at a non-end position of the moving iron core.
所述线圈20在与所述第一端部相对的第二端部上固定布置有静铁芯30。所述静铁芯30包括大致呈圆盘状的盘体，盘体的朝向所述动铁芯杆体的盘面上延伸出凸部60。凸部60伸入线圈20的轴孔内并与同样伸入该轴孔内的动铁芯40的杆体相对。与所述凸部60匹配的是，动铁芯40的杆体在朝着所述凸部60的端面上设置有凹槽70。在电磁阀工作过程中，动铁芯40朝静铁芯30移动，所述凸部60将容纳于凹槽70内。作为替换，所述凸部60也可以设置在动铁芯40上，而所述凹槽70设置在静铁芯30上。The coil 20 is fixedly disposed with a static iron core 30 on a second end opposite to the first end. The static iron core 30 includes a disk body having a substantially disk shape, and a convex portion 60 is formed on a disk surface of the disk body facing the movable iron core body. The projection 60 projects into the shaft bore of the coil 20 and opposes the body of the moving iron core 40 that also extends into the shaft bore. Matching with the convex portion 60, the rod body of the movable iron core 40 is provided with a groove 70 on the end surface facing the convex portion 60. During operation of the solenoid valve, the moving iron core 40 moves toward the static iron core 30, and the convex portion 60 will be accommodated in the recess 70. Alternatively, the convex portion 60 may be disposed on the movable iron core 40, and the concave groove 70 is disposed on the static iron core 30.
图3-6示出了根据本发明的电磁阀的未通电状态和通电状态。如图3和4所示，在线圈未通电时，弹簧50对动铁芯40的法兰施加压力，使得动铁芯40杆体的下端面离开静铁芯30盘体的上端面一定的距离。继续参见图5和6，线圈通电后，动铁芯40在线圈20所产生的电磁场的驱动下克服弹簧50的压力而沿线圈轴孔朝静铁芯30移动。动铁芯40在线圈轴孔内朝静铁芯30移动的过程中，静铁芯30的凸部60容纳于动铁芯40的凹 槽70内。最终，当动铁芯40在线圈磁力和静铁芯磁力的双重作用下最终移动到与静铁芯30抵接时，两者具有最大的吸附力而紧紧吸合在一起。3-6 illustrate an unpowered state and an energized state of a solenoid valve in accordance with the present invention. As shown in FIGS. 3 and 4, when the coil is not energized, the spring 50 applies pressure to the flange of the movable core 40 such that the lower end surface of the moving core 40 is separated from the upper end surface of the stationary core 30 by a certain distance. Continuing to refer to Figures 5 and 6, after the coil is energized, the moving iron core 40 moves toward the stationary iron core 30 along the coil shaft hole against the pressure of the spring 50 under the drive of the electromagnetic field generated by the coil 20. The convex portion 60 of the static iron core 30 is accommodated in the recess 70 of the movable iron core 40 during the movement of the moving iron core 40 toward the stationary iron core 30 in the coil shaft hole. Finally, when the movable iron core 40 finally moves to abut against the static iron core 30 under the double action of the coil magnetic force and the static iron core magnetic force, the two have the greatest adsorption force and are tightly attracted together.
在上述动铁芯40朝静铁芯30移动的过程中，动铁芯40所受到的静铁芯吸力，除了静铁芯30盘体的吸力外，还包括静铁芯盘体上的凸部60的吸力。尤其是，从图4可以看出，在所述动铁芯40朝静铁芯30移动过程的开始，即电磁阀启动之时，静铁芯30凸部60的端面61与所述凹槽70的开口71位于相同的行程位置，也即位于同一个平面上。此时，凸部60与动铁芯40之间具有更大的吸力，从而有效增加了电磁阀在启动时的驱动力。可以明白，除了图中所示出的所述优选实施例之外，也可以将凸部60的长度设置为更长或更短，使得在所述动铁芯40朝静铁芯30移动过程的开始，静铁芯30凸部60的端面61与所述凹槽70的开口71并不处于同一个行程位置。与此对应的是，动铁芯40上的凹槽70的深度必须足以容纳所述凸部60，以允许动铁芯40最终能够与静铁芯30贴合并以最大的吸附力紧紧地吸合在一起。In the process of moving the movable iron core 40 toward the static iron core 30, the static iron core suction force received by the movable iron core 40 includes the convex portion on the static iron core disk body in addition to the suction force of the static iron core 30 disk body. 60 suction. In particular, as can be seen from FIG. 4, at the beginning of the moving process of the moving iron core 40 toward the static iron core 30, that is, when the electromagnetic valve is activated, the end surface 61 of the convex portion 60 of the static iron core 30 and the recess 70 are The openings 71 are located at the same stroke position, that is, on the same plane. At this time, the convex portion 60 and the moving iron core 40 have a larger suction force, thereby effectively increasing the driving force of the electromagnetic valve at the time of starting. It will be appreciated that in addition to the preferred embodiment illustrated in the figures, the length of the projection 60 may be set to be longer or shorter so that the moving core 40 moves toward the stationary core 30. Initially, the end face 61 of the convex portion 60 of the static iron core 30 and the opening 71 of the recess 70 are not in the same stroke position. Correspondingly, the depth of the groove 70 on the movable iron core 40 must be sufficient to accommodate the convex portion 60, so that the movable iron core 40 can finally be attached to the static iron core 30 and sucked tightly with maximum suction force. combine together.
图7为图1中静铁芯的立体示意图，从中可见，所述凸部60大致为圆柱状并且从静铁芯30的盘体上沿轴线伸出。为此，动铁芯40上的凹槽70相应地被设置为在所述动铁芯40上沿轴线延伸。除图7所示外，所述凸部也可以被设置为其他的形式，比如图8所示的棱柱状，还可如图9所示被设置为台阶状，包括第一部段62和从该第一部段62伸出的第二部段63，并且所述第一部段62的横截面积小于第二部段63的横截面积。Figure 7 is a perspective view of the static iron core of Figure 1, from which it can be seen that the convex portion 60 is substantially cylindrical and projects from the disk body of the static iron core 30 along the axis. To this end, the recess 70 on the moving iron core 40 is correspondingly arranged to extend along the axis on the moving iron core 40. In addition to the one shown in Fig. 7, the convex portion may be provided in other forms, such as the prism shape shown in Fig. 8, and may be arranged in a step shape as shown in Fig. 9, including the first section 62 and the slave. The second section 63 of the first section 62 projects and the cross-sectional area of the first section 62 is smaller than the cross-sectional area of the second section 63.
以下将通过图12的电磁力测试图进一步说明本发明的电磁阀相比图10-11所示的现有技术所具有的明显优势。图12分别对根据本发明的一种具体电磁阀和根据图10-11的现有技术电磁阀进行电磁力测试。为进行所述测试，将电磁阀的动铁芯的工作行程均设置为5mm，也即从线圈通电驱动动铁芯朝静铁芯移动直至动铁芯与静铁芯吸合，动铁芯需要移动5mm，换句话说，将动铁芯杆体与静铁芯盘体的相对端面距离设置为5mm。进一步地，在本发明中，静铁芯的凸部长度和动铁芯的凹槽深度均设置为3mm。分别使两个电磁阀的线圈通电，动铁芯在线圈轴孔内朝静铁芯移动，同时 测试动铁芯在总个5mm行程中所受到的电磁力，绘制成如图12所示的电磁力测试图。The apparent advantages of the solenoid valve of the present invention over the prior art shown in Figures 10-11 will be further illustrated by the electromagnetic force test diagram of Figure 12 below. Figure 12 shows electromagnetic force testing of a particular solenoid valve in accordance with the present invention and a prior art solenoid valve in accordance with Figures 10-11, respectively. In order to carry out the test, the working stroke of the moving iron core of the solenoid valve is set to 5 mm, that is, the moving iron core is driven from the coil to move toward the static iron core until the moving iron core and the static iron core are sucked, and the moving iron core needs to be Move 5mm, in other words, set the distance between the moving iron core body and the static iron core body to 5mm. Further, in the present invention, the length of the convex portion of the static iron core and the groove depth of the movable iron core are both set to 3 mm. The coils of the two solenoid valves are respectively energized, and the moving iron core moves toward the static iron core in the coil shaft hole, and at the same time, the electromagnetic force received by the moving iron core in the total 5 mm stroke is drawn, and the electromagnetic force shown in FIG. 12 is drawn. Force test chart.
从图12可以看出，在整个行程的大部分阶段，根据本发明的电磁阀的动铁芯相比现有技术均具有更大的电磁力。尤其是，在动铁芯的3mm行程位置，也即在本发明中的静铁芯30凸部60的端面61与动铁芯40凹槽70的开口71位于相同的行程位置、也即位于同一个平面上时，根据本发明的的电磁阀的动铁芯40的受到的电磁力显著地大于现有技术。为此，可以将电磁阀设置为，在启动时，静铁芯30凸部60的端面61与动铁芯40凹槽70的开口71位于相同的行程位置、也即位于同一个平面上时，从而使得电磁阀在启动时具有更大的驱动力。As can be seen from Figure 12, the moving iron core of the solenoid valve according to the present invention has a greater electromagnetic force than the prior art during most of the entire stroke. In particular, at the 3 mm stroke position of the moving iron core, that is, the end surface 61 of the convex portion 60 of the static iron core 30 in the present invention is located at the same stroke position as the opening 71 of the recess 70 of the movable iron core 40, that is, at the same On one plane, the electromagnetic force of the moving iron core 40 of the solenoid valve according to the present invention is significantly greater than that of the prior art. To this end, the solenoid valve can be arranged such that, at the time of starting, the end face 61 of the convex portion 60 of the static iron core 30 and the opening 71 of the groove 70 of the movable iron core 40 are located at the same stroke position, that is, when they are on the same plane. Thereby the solenoid valve has a greater driving force at startup.
根据本发明的电磁阀可以应用于多种场合，比如汽车座椅中。尤其是，可以将根据本发明的电磁阀用于汽车座椅的气动按摩***，通过该电磁阀来驱动气动按摩***的充放气开关。或者，可以将所述电磁阀用于汽车的座椅折叠***，通过该电磁阀来驱动所述座椅折叠***的折叠开关。在各种应用场合，通常将电磁阀的动铁芯连接电动座椅或车门等的执行机构，进而可以通过控制电磁阀电流的闭合或断开而最终控制座椅或车门等的工作位置或状态等。The solenoid valve according to the present invention can be applied to various applications, such as in a car seat. In particular, the solenoid valve according to the invention can be used in a pneumatic massage system for a car seat, by which the charge and discharge switch of the pneumatic massage system is driven. Alternatively, the solenoid valve can be used in a seat folding system of an automobile by which the folding switch of the seat folding system is driven. In various applications, the moving iron core of the solenoid valve is usually connected to an actuator such as a power seat or a door, and finally the working position or state of the seat or the door can be finally controlled by controlling the closing or opening of the solenoid valve current. Wait.
上文描述的仅仅是有关本发明的精神和原理的示例性实施方式。本领域技术人员可以明白，在不背离所述精神和原理的前提下，可以对所描述的示例做出各种变化，这些变化及其各种等同方式均被本发明人所预想到，并落入由本发明的权利要求所限定的范围内。What has been described above is merely exemplary embodiments relating to the spirit and principles of the present invention. A person skilled in the art can understand that various changes can be made to the described examples without departing from the spirit and principle, and such changes and their various equivalents are contemplated by the inventors. It is within the scope defined by the claims of the invention.

Claims (9)

  1. 一种电磁阀，包括壳体(10)，该壳体(10)上设置有：A solenoid valve includes a housing (10), the housing (10) is provided with:
    线圈(20)，该线圈(20)在通电时产生磁场；a coil (20) that generates a magnetic field when energized;
    静铁芯(30)，该静铁芯(30)相对所述线圈(20)固定安装并处于所述磁场内；和a static iron core (30) fixedly mounted relative to the coil (20) and within the magnetic field;
    动铁芯(40)，该动铁芯(40)受到所述磁场的作用而相对线圈(20)移动并与静铁芯(30)吸合；a movable iron core (40), which is moved by the magnetic field to move relative to the coil (20) and is attracted to the static iron core (30);
    其特征在于：It is characterized by:
    在所述静铁芯(30)和动铁芯(40)中，其中一个设置有凸部(60)，另一个设置有与所述凸部(60)匹配的凹槽(70)；并且In the static iron core (30) and the moving iron core (40), one of them is provided with a convex portion (60), and the other is provided with a groove (70) matching the convex portion (60);
    在动铁芯(40)向静铁芯(30)移动过程的至少部分行程中，所述凸部(60)位于所述凹槽(70)内。The projection (60) is located within the recess (70) during at least a portion of the travel of the moving iron core (40) to the stationary iron core (30).
  2. 根据权利要求1所述的电磁阀，其特征在于：所述凸部(60)在所述静铁芯(30)上沿轴线延伸。The solenoid valve according to claim 1, wherein said projection (60) extends along an axis on said static iron core (30).
  3. 根据权利要求1所述的电磁阀，其特征在于：所述凹槽(70)在所述动铁芯(40)上沿轴线延伸。The solenoid valve according to claim 1, wherein said groove (70) extends along an axis on said moving iron core (40).
  4. 根据权利要求2或3所述的电磁阀，其特征在于：所述静铁芯(30)和动铁芯(40)同轴布置。The solenoid valve according to claim 2 or 3, characterized in that the static iron core (30) and the moving iron core (40) are arranged coaxially.
  5. 根据权利要求1所述的电磁阀，其特征在于：所述凸部(60)为等截面柱体。The solenoid valve according to claim 1, wherein said convex portion (60) is an equal-section cylinder.
  6. 根据权利要求1所述的电磁阀，其特征在于：所述凸部(60)包括第一部段(62)和从该第一部段(62)伸出的第二部段(63)，并且所述第一部段 (62)的横截面积小于第二部段(63)的横截面积。The solenoid valve of claim 1 wherein said projection (60) includes a first section (62) and a second section (63) extending from the first section (62), And the cross-sectional area of the first section (62) is smaller than the cross-sectional area of the second section (63).
  7. 一种汽车座椅，包括气动按摩***，其特征在于，所述气动按摩***的充放气开关包括根据权利要求1-6中任一项所述的电磁阀。A car seat comprising a pneumatic massage system, characterized in that the charge and discharge switch of the pneumatic massage system comprises the solenoid valve according to any one of claims 1-6.
  8. 一种汽车座椅，包括座椅折叠***，其特征在于，所述座椅折叠***的折叠开关包括根据权利要求1-6中任一项所述的电磁阀。A car seat comprising a seat folding system, characterized in that the folding switch of the seat folding system comprises a solenoid valve according to any one of claims 1-6.
  9. 一种汽车车门,包括门锁***，其特征在于，所述门锁***包括根据权利要求1-6中任一项所述的电磁阀。A vehicle door comprising a door lock system, characterized in that the door lock system comprises a solenoid valve according to any one of claims 1-6.
PCT/CN2018/118171 2017-12-12 2018-11-29 Solenoid valve, and car seat and car door having same WO2019114557A1 (en)

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