WO2025213408A1 - Solenoid valve and shock absorber - Google Patents
Solenoid valve and shock absorberInfo
- Publication number
- WO2025213408A1 WO2025213408A1 PCT/CN2024/087190 CN2024087190W WO2025213408A1 WO 2025213408 A1 WO2025213408 A1 WO 2025213408A1 CN 2024087190 W CN2024087190 W CN 2024087190W WO 2025213408 A1 WO2025213408 A1 WO 2025213408A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- armature
- pilot valve
- elastic member
- magnetic pole
- coil
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—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 a solenoid valve and a shock absorber.
- Solenoid valves are used to control the flow of media in shock absorbers.
- CN110360261A discloses a solenoid valve for adjusting shock absorber damping.
- Figure 1 is a cross-sectional view of this prior art solenoid valve. As shown in Figure 1, when energized, the pilot valve core 61' abuts against the pilot valve seat 62'. In the low-speed damping state, the pilot valve core 61' and the pilot valve seat 62' are difficult to separate, which can easily cause pressure overshoot.
- the purpose of this application is to provide a solenoid valve that reduces or even eliminates low-speed overshoot.
- One aspect of the present application provides a solenoid valve, the solenoid valve comprising:
- a coil which is capable of generating a magnetic field when energized by an electric current
- an armature at least a portion of which is circumferentially surrounded by the coil and capable of moving along a first axial direction under the action of the magnetic field;
- a magnetic pole located on one side of the armature in a first axial direction
- the pilot valve comprises a pilot valve seat and a pilot valve core, wherein:
- the armature moves along the first axial direction against the elastic force of the elastic member under the action of the magnetic field, and the push rod, driven by the armature, pushes the pilot valve core against the pilot valve seat, so that the pilot valve is closed.
- the elastic member when the coil loses power, the elastic member is in contact with one of the armature and the magnetic pole.
- the armature and the magnetic pole are in contact with each other, and the elastic member is out of contact with the other of the armature and the magnetic pole.
- the elastic member is fixedly connected to the contacting one of the armature and the magnetic pole.
- the elastic member is a diaphragm spring.
- one axial side of the elastic member abuts against the axial end surface of the armature, and the other axial side of the elastic member abuts against the axial end surface of the magnetic pole.
- shock absorber comprising the solenoid valve according to any one of the above embodiments.
- an elastic member is disposed between the armature and the magnetic pole.
- This elastic force acts on the armature in an opposite direction to the electromagnetic force. Consequently, the net force acting on the armature is relatively small.
- This smaller net force on the armature is transmitted to the push rod, which in turn acts on the pilot valve core, which is pressed by the push rod. Consequently, the pushing force on the pilot valve core is reduced. This makes it easier for the pilot valve core and the pilot valve seat to separate during low-speed damping, thereby reducing or even eliminating low-speed overshoot.
- FIG1 is a cross-sectional view of a solenoid valve according to the prior art.
- FIG. 2 is a cross-sectional view of a solenoid valve according to an embodiment of the present application when a coil is energized.
- FIG. 3 is a cross-sectional view of a solenoid valve according to an embodiment of the present application when a coil is de-energized.
- axial refers to the axial, radial, and circumferential directions of the solenoid valve, respectively.
- Any directional terms “up,””down,””left,” and “right” appearing herein are directions shown in the accompanying drawings and do not limit the specific structure of this application.
- Figure 2 is a cross-sectional view of a solenoid valve according to an embodiment of the present application when the coil is energized
- Figure 3 is a cross-sectional view of the solenoid valve according to an embodiment of the present application when the coil is de-energized.
- the solenoid valve may include a coil 1, an armature 2, a magnetic pole 3, an elastic member 4, a push rod 5, and a pilot valve 6.
- the coil 1 generates a magnetic field when energized by current.
- At least a portion of the armature 2 is circumferentially surrounded by the coil 1 and is movable along a first axial direction X1 under the influence of the magnetic field.
- the magnetic pole 3 is located on one side of the armature 2 in the first axial direction X1 and is also referred to as the C pole (center pole).
- the push rod 5 is fixedly connected to the armature 2 and axially movable through the magnetic pole 3.
- the pilot valve 6 includes a pilot valve seat 62 and a pilot valve core 61.
- an elastic member 4 is disposed between the armature 2 and the magnetic pole 3.
- the armature 2 is subjected to the elastic force of the elastic member 4, which acts in opposition to the electromagnetic force. Consequently, the net force acting on the armature 2 is relatively small.
- This smaller net force on the armature 2 is transmitted to the push rod 5, which in turn acts on the pilot valve core 61, which is pushed by the push rod 5. Consequently, the pushing force acting on the pilot valve core 61 is reduced. This makes it easier for the pilot valve core 61 and the pilot valve seat 62 to separate during low-speed damping, thereby reducing or even eliminating low-speed overshoot.
- the solenoid valve also includes a main valve 7, which includes a main valve core 71 and a main valve seat 72.
- the pilot valve 6 also includes a spring 63, which abuts one side (the lower side as shown in Figure 1) of the pilot valve core 61 in the first axial direction X1 and, when compressed, applies a spring force to lift the pilot valve core 61 away from the pilot valve seat 62.
- the pilot valve seat 62 is an annular protrusion formed on the end surface of the main valve core 71.
- the spring 63 pushes the pilot valve core 61 to move in the second axial direction X2 to the upper stop position, creating a small leakage path in the overflow channel. This creates a certain back pressure acting on the main valve core 71, thereby providing the damping force required at 0A.
- a current of 0.4 A or above is provided to the coil 1 , and the push rod 5 pushes the pilot valve core 61 away from the upper stop position and abuts against the pilot valve seat 62 to achieve normal damping force adjustment.
- the elastic force of the elastic member 4 acts on the armature 2, the push rod 5 and the pilot valve core 61 in sequence.
- a throttling feature that is, a gap
- a pilot valve oil unloading channel is provided (as shown in Figure 2).
- the elastic member 4 and the spring 63 work together to adjust the size of the gap, thereby achieving pressure regulation.
- the elastic member 4 When the coil 1 loses power, the elastic member 4 abuts against one of the armature 2 and the magnetic pole 3, and loses contact with the other. Specifically, as shown in FIG3 , when power is lost, the elastic member 4 contacts the magnetic pole 3 and separates from the armature 2. In this state, the push rod 5 passes through the elastic member 4 in an axially movable manner.
- the elastic member 4 can be fixedly connected to the one of the armature 2 and the magnetic pole 3 with which it contacts, for example, by welding.
- the elastic member 4 may be a diaphragm spring. It should be understood that the elastic member 4 is not limited thereto, and other types of members capable of providing elastic force, such as wave springs, may be used. Preferably, the elastic member 4 is a high-rigidity spring. When the coil 1 is energized, the periphery of the diaphragm spring abuts against one of the armature 2 and the magnetic pole 3, and the protrusion in the center of the diaphragm spring abuts against the other of the armature 2 and the magnetic pole 3.
- the periphery of the diaphragm spring abuts against the armature 2, and the protrusion of the diaphragm spring abuts against the magnetic pole 3.
- the size of the diaphragm spring is approximately the same as the size of the axial end face of the armature 2 or the magnetic pole 3.
- the solenoid valve includes a push rod elastic member (not shown), which can be used alone or in conjunction with the elastic member 4 of the above embodiment.
- the principle of this member is the same as that of the elastic member 4 of the above embodiment, and can achieve the purpose of reducing or even avoiding low-speed pressure overshoot.
- a push rod elastic member is disposed on one side of the magnetic pole 3 in the first axial direction (X1).
- the push rod 5 pushes the pilot valve core 61 against the pilot valve seat 62 against the elastic force of the push rod elastic member.
- the push rod 5 includes a shoulder surface against which the push rod elastic member can abut when the coil 1 is energized. The shoulder surface is adjacent to the end of the push rod 5 in the first axial direction (X1).
- the solenoid valve also includes a pilot valve housing 64, in which the pilot valve core 61 is sleeved.
- a push rod elastic member is axially clamped between the magnetic pole 3 and the pilot valve housing 64.
- the push rod elastic member 4 may be a diaphragm spring. It should be understood that the push rod elastic member is not limited to this, and other types of elastic components may be used.
- the solenoid valve further comprises a yoke sleeve 8 , in which the armature 2 is sleeved and can move back and forth in the yoke sleeve 8 along the axial direction.
- An embodiment of the present application also provides a shock absorber, and the solenoid valve of the above embodiment can be applied to the shock absorber.
- the shock absorber includes a cylinder body and a piston assembly.
- the piston assembly is fixed to one end of the piston rod.
- the piston assembly is arranged in the cylinder body and can move axially in the cylinder body.
- the piston assembly divides the cylinder body into a compression chamber and a rebound chamber.
- the two chambers are filled with a fluid medium, which can be a gas medium or a liquid medium such as hydraulic oil.
- the shock absorber has a compression stroke and a rebound stroke. In the compression stroke, the fluid medium in the rebound chamber flows to the second working chamber through the piston assembly. In the rebound stroke, the fluid medium in the compression chamber flows to the first working chamber through the piston assembly.
- the solenoid valve can be connected to the rebound chamber to regulate the damping force of the fluid medium.
- Pilot valve 61, 61', pilot valve core; 62, 62', pilot valve seat; 63, spring; 64, pilot valve sleeve;
- Main valve 71. Main valve core; 72. Main valve seat;
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
本申请涉及电磁阀和减振器。The present application relates to a solenoid valve and a shock absorber.
电磁阀用于在减振器中控制介质流动。CN110360261A公开了一种调节减振器阻尼的电磁阀。图1是该现有技术的电磁阀的剖视图。如图1所示，当通电时，先导阀芯61’抵靠于先导阀座62’上。在低速阻尼状态下，先导阀芯61’和先导阀座62’不容易分开，容易产生压力超调。Solenoid valves are used to control the flow of media in shock absorbers. CN110360261A discloses a solenoid valve for adjusting shock absorber damping. Figure 1 is a cross-sectional view of this prior art solenoid valve. As shown in Figure 1, when energized, the pilot valve core 61' abuts against the pilot valve seat 62'. In the low-speed damping state, the pilot valve core 61' and the pilot valve seat 62' are difficult to separate, which can easily cause pressure overshoot.
因此，现有的减振器电磁阀比较容易产生低速超调的问题。Therefore, the existing shock absorber solenoid valve is more likely to cause low-speed overshoot problem.
发明内容Summary of the Invention
本申请的目的在于提供一种减小甚至消除低速超调的电磁阀。The purpose of this application is to provide a solenoid valve that reduces or even eliminates low-speed overshoot.
本申请的一方面提供了一种电磁阀，电磁阀包括：One aspect of the present application provides a solenoid valve, the solenoid valve comprising:
线圈，其能够在被电流激励时产生磁场；a coil, which is capable of generating a magnetic field when energized by an electric current;
电枢，其至少一部分被线圈周向包围，并且能够在磁场的作用下沿第一轴向移动；an armature, at least a portion of which is circumferentially surrounded by the coil and capable of moving along a first axial direction under the action of the magnetic field;
磁极，其位于电枢的第一轴向上的一侧；a magnetic pole located on one side of the armature in a first axial direction;
弹性件，其沿轴向设置于电枢与磁极之间；an elastic member, which is axially arranged between the armature and the magnetic pole;
推杆，其以不可相对移动的方式连接于电枢，并且以可轴向地相对移动的方式穿过磁极；和a push rod connected to the armature in a relatively non-movable manner and passing through the magnetic pole in an axially relatively movable manner; and
先导阀，其包括先导阀座和先导阀芯，其中，The pilot valve comprises a pilot valve seat and a pilot valve core, wherein:
当线圈通电时，电枢在磁场的作用下抵抗弹性件的弹力沿第一轴向移动，并且推杆在电枢的带动下推压先导阀芯抵靠于先导阀座，使得先导阀关闭。When the coil is energized, the armature moves along the first axial direction against the elastic force of the elastic member under the action of the magnetic field, and the push rod, driven by the armature, pushes the pilot valve core against the pilot valve seat, so that the pilot valve is closed.
根据本申请的实施例，当线圈失电时，弹性件与电枢和磁极中的一者 相抵靠，并且弹性件与电枢和磁极中的另一者脱离接触。According to an embodiment of the present application, when the coil loses power, the elastic member is in contact with one of the armature and the magnetic pole. The armature and the magnetic pole are in contact with each other, and the elastic member is out of contact with the other of the armature and the magnetic pole.
根据本申请的实施例，弹性件与电枢和磁极中的相接触的一者固定连接。According to an embodiment of the present application, the elastic member is fixedly connected to the contacting one of the armature and the magnetic pole.
根据本申请的实施例，弹性件为膜片弹簧。According to an embodiment of the present application, the elastic member is a diaphragm spring.
根据本申请的实施例，当线圈通电时，弹性件的一个轴向侧抵靠于电枢的轴端面，并且弹性件的另一轴向侧抵靠于磁极的轴端面。According to an embodiment of the present application, when the coil is energized, one axial side of the elastic member abuts against the axial end surface of the armature, and the other axial side of the elastic member abuts against the axial end surface of the magnetic pole.
本申请的另一方面提供了一种减振器，其包括根据上述实施例中任一项的电磁阀。Another aspect of the present application provides a shock absorber, comprising the solenoid valve according to any one of the above embodiments.
根据本申请的实施例，在电枢与磁极之间设置有弹性件，电枢受到与电磁力相反的弹性件的弹力的作用。因此，作用于电枢上的合力较小。电枢上的较小的合力传递给推杆，继而作用于被推杆推压的先导阀芯。故，作用于先导阀芯上的推压力减小。这样，在低速阻尼的情况下，先导阀芯和先导阀座更容易分开，从而减小甚至消除低速超调。According to an embodiment of the present application, an elastic member is disposed between the armature and the magnetic pole. This elastic force acts on the armature in an opposite direction to the electromagnetic force. Consequently, the net force acting on the armature is relatively small. This smaller net force on the armature is transmitted to the push rod, which in turn acts on the pilot valve core, which is pressed by the push rod. Consequently, the pushing force on the pilot valve core is reduced. This makes it easier for the pilot valve core and the pilot valve seat to separate during low-speed damping, thereby reducing or even eliminating low-speed overshoot.
图1是现有技术的电磁阀的剖视图。FIG1 is a cross-sectional view of a solenoid valve according to the prior art.
图2是当线圈通电时根据本申请的实施例的电磁阀的剖视图。FIG. 2 is a cross-sectional view of a solenoid valve according to an embodiment of the present application when a coil is energized.
图3是当线圈失电时根据本申请的实施例的电磁阀的剖视图。FIG. 3 is a cross-sectional view of a solenoid valve according to an embodiment of the present application when a coil is de-energized.
以下，将参考附图详细描述本公开的实施例。下面描述的实施例是以示例的方式提供的，使得本领域技术人员能够完全理解本公开的精神。本公开不限于下面描述的实施例，而是可以以其它形式实施。为了清楚地说明本公开，附图中省略了与说明书无关的部分。Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art can fully understand the spirit of the present disclosure. The present disclosure is not limited to the embodiments described below, but may be implemented in other forms. In order to clearly illustrate the present disclosure, parts not related to the description are omitted from the accompanying drawings.
除非另有说明，本文中的术语“轴向”、“径向”和“周向”分别是指电磁阀的轴向、径向和周向。本文中出现的任何方位术语“上”、“下”、“左”、“右”都是附图中所示的方向，并不限定本申请的具体结构。 Unless otherwise specified, the terms "axial,""radial," and "circumferential" herein refer to the axial, radial, and circumferential directions of the solenoid valve, respectively. Any directional terms "up,""down,""left," and "right" appearing herein are directions shown in the accompanying drawings and do not limit the specific structure of this application.
图2是当线圈通电时根据本申请的实施例的电磁阀的剖视图，图3是当线圈失电时根据本申请的实施例的电磁阀的剖视图。如图2和图3所示，电磁阀可以包括线圈1、电枢2、磁极3、弹性件4、推杆5和先导阀6。线圈1能够在被电流激励时，产生磁场。电枢2的至少一部分被线圈1周向地包围，并且能够在磁场的作用下沿第一轴向X1移动。磁极3位于电枢2的在第一轴向X1上的一侧，磁极3也称为C极(中心极)。推杆5以不可相对移动的方式连接于电枢2，并且以可轴向地相对移动的方式穿过磁极3。先导阀6包括先导阀座62和先导阀芯61。当线圈1通电时，电枢2在磁场的作用下抵抗弹性件4的弹力沿第一轴向X1移动，并且推杆5在电枢2的带动下推压先导阀芯61抵靠于先导阀座62。Figure 2 is a cross-sectional view of a solenoid valve according to an embodiment of the present application when the coil is energized, and Figure 3 is a cross-sectional view of the solenoid valve according to an embodiment of the present application when the coil is de-energized. As shown in Figures 2 and 3, the solenoid valve may include a coil 1, an armature 2, a magnetic pole 3, an elastic member 4, a push rod 5, and a pilot valve 6. The coil 1 generates a magnetic field when energized by current. At least a portion of the armature 2 is circumferentially surrounded by the coil 1 and is movable along a first axial direction X1 under the influence of the magnetic field. The magnetic pole 3 is located on one side of the armature 2 in the first axial direction X1 and is also referred to as the C pole (center pole). The push rod 5 is fixedly connected to the armature 2 and axially movable through the magnetic pole 3. The pilot valve 6 includes a pilot valve seat 62 and a pilot valve core 61. When the coil 1 is energized, the armature 2 moves along the first axial direction X1 under the influence of the magnetic field, resisting the elastic force of the elastic member 4. Driven by the armature 2, the push rod 5 pushes the pilot valve core 61 against the pilot valve seat 62.
根据本申请的实施例，在电枢2与磁极3之间设置有弹性件4，电枢2受到与电磁力相反的弹性件4的弹力的作用。因此，作用于电枢2上的合力较小。电枢2上的较小的合力传递给推杆5，继而作用于被推杆5推压的先导阀芯61。故，作用于先导阀芯61上的推压力减小。这样，在低速阻尼的情况下，先导阀芯61和先导阀座62更容易分开，从而减小甚至消除低速超调。According to an embodiment of the present application, an elastic member 4 is disposed between the armature 2 and the magnetic pole 3. The armature 2 is subjected to the elastic force of the elastic member 4, which acts in opposition to the electromagnetic force. Consequently, the net force acting on the armature 2 is relatively small. This smaller net force on the armature 2 is transmitted to the push rod 5, which in turn acts on the pilot valve core 61, which is pushed by the push rod 5. Consequently, the pushing force acting on the pilot valve core 61 is reduced. This makes it easier for the pilot valve core 61 and the pilot valve seat 62 to separate during low-speed damping, thereby reducing or even eliminating low-speed overshoot.
电磁阀还包括主阀7，主阀包括主阀芯71和主阀座72。先导阀6还包括弹簧63，其抵靠于先导阀芯61的第一轴向X1上的一侧(图1所示的下侧)，并且在受到压缩时，向先导阀芯61施加抬离先导阀座62的弹力。先导阀座62为形成在主阀芯71的端面上的环形凸起。The solenoid valve also includes a main valve 7, which includes a main valve core 71 and a main valve seat 72. The pilot valve 6 also includes a spring 63, which abuts one side (the lower side as shown in Figure 1) of the pilot valve core 61 in the first axial direction X1 and, when compressed, applies a spring force to lift the pilot valve core 61 away from the pilot valve seat 62. The pilot valve seat 62 is an annular protrusion formed on the end surface of the main valve core 71.
当线圈1失电时，即，电流为0时，弹簧63推动先导阀芯61向第二轴向X2移动到上止位，使得溢流通道存在较小的泄漏通道。从而，形成一定的背压作用在主阀芯71上，由此提供0A时所需要的阻尼力。When the coil 1 is de-energized, i.e., the current is zero, the spring 63 pushes the pilot valve core 61 to move in the second axial direction X2 to the upper stop position, creating a small leakage path in the overflow channel. This creates a certain back pressure acting on the main valve core 71, thereby providing the damping force required at 0A.
当需要主动模式时，为线圈1提供0.4A及以上的电流，推杆5推动先导阀芯61离开上止位，抵靠先导阀座62，实现正常的阻尼力调节。When the active mode is required, a current of 0.4 A or above is provided to the coil 1 , and the push rod 5 pushes the pilot valve core 61 away from the upper stop position and abuts against the pilot valve seat 62 to achieve normal damping force adjustment.
在低速阻尼的情况下，弹性件4的弹力依次作用于电枢2、推杆5和先导阀芯61。这样，在主阀7关闭的状态下，当流体介质的压力大于预定值时，在先导阀芯61和先导阀座62之间形成一个节流特征，即，间隙。在电流较低时，在主阀7开启的瞬间，会提供先导阀卸油通道(如图2中 的箭头所示)，从而避免压力超调。当电流进一步增大后，弹性件4和弹簧63共同作用来调控间隙的大小，从而实现压力调节。In the case of low-speed damping, the elastic force of the elastic member 4 acts on the armature 2, the push rod 5 and the pilot valve core 61 in sequence. In this way, when the main valve 7 is closed, when the pressure of the fluid medium is greater than a predetermined value, a throttling feature, that is, a gap, is formed between the pilot valve core 61 and the pilot valve seat 62. When the current is low, at the moment the main valve 7 opens, a pilot valve oil unloading channel is provided (as shown in Figure 2). As the current increases further, the elastic member 4 and the spring 63 work together to adjust the size of the gap, thereby achieving pressure regulation.
当线圈1通电时，弹性件4的一个轴向侧(上侧)抵靠于电枢2的轴端面，并且弹性件4的另一轴向侧(下侧)抵靠于磁极3的轴端面。电枢2和磁极3的轴端面为平面。When the coil 1 is energized, one axial side (upper side) of the elastic member 4 abuts against the axial end face of the armature 2, and the other axial side (lower side) of the elastic member 4 abuts against the axial end face of the magnetic pole 3. The axial end faces of the armature 2 and the magnetic pole 3 are flat.
当线圈1失电时，弹性件4与电枢2和磁极3中的一者相抵靠，并且弹性件4与电枢2和磁极3中的另一者脱离接触。具体地，如图3所示，当失电时，弹性件4与磁极3相接触，并且与电枢2分开。在这种情况下，推杆5沿轴向可相对移动地穿过弹性件4。弹性件4可以固定地连接至与其相接触的电枢2和磁极3中的该一者上，例如，通过焊接的方式。When the coil 1 loses power, the elastic member 4 abuts against one of the armature 2 and the magnetic pole 3, and loses contact with the other. Specifically, as shown in FIG3 , when power is lost, the elastic member 4 contacts the magnetic pole 3 and separates from the armature 2. In this state, the push rod 5 passes through the elastic member 4 in an axially movable manner. The elastic member 4 can be fixedly connected to the one of the armature 2 and the magnetic pole 3 with which it contacts, for example, by welding.
弹性件4可以为膜片弹簧。应当理解，弹性件4并不限于此，并且可以使用其他类型的能够提供弹力的构件，例如，波形弹簧等。优选地，弹性件4为高刚度弹簧。当线圈1通电时，膜片弹簧的周缘抵靠于电枢2和磁极3中的一者，并且膜片弹簧中心的凸起抵靠于电枢2和磁极3中的另一者。具体地，如图2所示，当线圈1通电时，膜片弹簧的周缘抵靠于电枢2，并且膜片弹簧的凸起抵靠于磁极3。膜片弹簧的大小与电枢2或磁极3的轴端面的大小大致相同。The elastic member 4 may be a diaphragm spring. It should be understood that the elastic member 4 is not limited thereto, and other types of members capable of providing elastic force, such as wave springs, may be used. Preferably, the elastic member 4 is a high-rigidity spring. When the coil 1 is energized, the periphery of the diaphragm spring abuts against one of the armature 2 and the magnetic pole 3, and the protrusion in the center of the diaphragm spring abuts against the other of the armature 2 and the magnetic pole 3. Specifically, as shown in FIG2 , when the coil 1 is energized, the periphery of the diaphragm spring abuts against the armature 2, and the protrusion of the diaphragm spring abuts against the magnetic pole 3. The size of the diaphragm spring is approximately the same as the size of the axial end face of the armature 2 or the magnetic pole 3.
在另一实施例中，电磁阀包括推杆弹性件(未示出)，其可以单独使用，或与上述实施例的弹性件4一起使用。其原理与上述实施例的弹性件4的原理相同，可以达到减小甚至避免低速压力超调的目的。In another embodiment, the solenoid valve includes a push rod elastic member (not shown), which can be used alone or in conjunction with the elastic member 4 of the above embodiment. The principle of this member is the same as that of the elastic member 4 of the above embodiment, and can achieve the purpose of reducing or even avoiding low-speed pressure overshoot.
推杆弹性件设置于磁极3的在第一轴向X1上的一侧。当线圈1通电时，推杆5抵抗推杆弹性件的弹力推压先导阀芯61抵靠在先导阀座62上。推杆5包括肩表面，在线圈1通电时，推杆弹性件能够抵靠于肩表面。肩表面邻近推杆5的在第一轴向X1上的端部。A push rod elastic member is disposed on one side of the magnetic pole 3 in the first axial direction (X1). When the coil 1 is energized, the push rod 5 pushes the pilot valve core 61 against the pilot valve seat 62 against the elastic force of the push rod elastic member. The push rod 5 includes a shoulder surface against which the push rod elastic member can abut when the coil 1 is energized. The shoulder surface is adjacent to the end of the push rod 5 in the first axial direction (X1).
电磁阀还包括先导阀套64，先导阀芯61套设在先导阀套64内，推杆弹性件在轴向上夹持在磁极3与先导阀套64之间。推杆弹性件4可以为膜片弹簧。应当理解，推杆弹性件并不限于此，并且可以使用其他类型的能够提供弹力的构件。 The solenoid valve also includes a pilot valve housing 64, in which the pilot valve core 61 is sleeved. A push rod elastic member is axially clamped between the magnetic pole 3 and the pilot valve housing 64. The push rod elastic member 4 may be a diaphragm spring. It should be understood that the push rod elastic member is not limited to this, and other types of elastic components may be used.
电磁阀还包括轭套8，电枢2套设在轭套8内，并且能够沿轴向在轭套8内来回移动。The solenoid valve further comprises a yoke sleeve 8 , in which the armature 2 is sleeved and can move back and forth in the yoke sleeve 8 along the axial direction.
本申请的实施例还提供了一种减振器，上述实施例的电磁阀可以应用于减振器。减振器包括缸体和活塞组件。活塞组件固定至活塞杆的一端。活塞组件布置于缸体内，并且能够在缸体内轴向移动。活塞组件将缸体分为压缩腔和回弹腔，两个腔室填充有流体介质，流体介质可以为气体介质或液压油等液体介质。减振器具有压缩行程和回弹行程。在压缩行程，回弹腔内的流体介质通过活塞组件流到第二工作腔。在回弹行程，压缩腔的流体介质通过活塞组件流到第一工作腔。电磁阀可以与回弹腔连通，以调控流体介质的阻尼力。An embodiment of the present application also provides a shock absorber, and the solenoid valve of the above embodiment can be applied to the shock absorber. The shock absorber includes a cylinder body and a piston assembly. The piston assembly is fixed to one end of the piston rod. The piston assembly is arranged in the cylinder body and can move axially in the cylinder body. The piston assembly divides the cylinder body into a compression chamber and a rebound chamber. The two chambers are filled with a fluid medium, which can be a gas medium or a liquid medium such as hydraulic oil. The shock absorber has a compression stroke and a rebound stroke. In the compression stroke, the fluid medium in the rebound chamber flows to the second working chamber through the piston assembly. In the rebound stroke, the fluid medium in the compression chamber flows to the first working chamber through the piston assembly. The solenoid valve can be connected to the rebound chamber to regulate the damping force of the fluid medium.
以上所述仅为本申请的优选实施方式而已，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。The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
附图标记列表Reference Signs List
1、线圈；1. Coil;
2、电枢；2. Armature;
3、磁极；3. Magnetic poles;
4、弹性件；4. Elastic parts;
5、推杆；5. Putting;
6、先导阀；61、61’、先导阀芯；62、62’、先导阀座；63、弹簧；64、先导阀套；6. Pilot valve; 61, 61', pilot valve core; 62, 62', pilot valve seat; 63, spring; 64, pilot valve sleeve;
7、主阀；71、主阀芯；72、主阀座；7. Main valve; 71. Main valve core; 72. Main valve seat;
X1、第一轴向；X2、第二轴向；X1, first axial direction; X2, second axial direction;
8、轭套。 8. Yoke.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2024/087190 WO2025213408A1 (en) | 2024-04-11 | 2024-04-11 | Solenoid valve and shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2024/087190 WO2025213408A1 (en) | 2024-04-11 | 2024-04-11 | Solenoid valve and shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025213408A1 true WO2025213408A1 (en) | 2025-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2024/087190 Pending WO2025213408A1 (en) | 2024-04-11 | 2024-04-11 | Solenoid valve and shock absorber |
Country Status (1)
| Country | Link |
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| WO (1) | WO2025213408A1 (en) |
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|---|---|---|---|---|
| JPH07208637A (en) * | 1994-01-27 | 1995-08-11 | Konan Denki Kk | Piston-operated pilot type two-way port solenoid valve |
| CN107110276A (en) * | 2015-01-13 | 2017-08-29 | Zf腓特烈斯哈芬股份公司 | Adjustable damping valve arrangement |
| CN113631833A (en) * | 2019-03-14 | 2021-11-09 | 肯德隆（菲林根）有限公司 | Pressure regulating valve and device having such a pressure regulating valve for controlling or regulating the pressure of a pressure fluid in a pilot pressure chamber |
| CN113728176A (en) * | 2019-03-06 | 2021-11-30 | 肯德隆（菲林根）有限公司 | Pressure regulating valve for controlling or regulating the pressure of a pressure fluid in a pilot pressure chamber and device having such a pressure regulating valve |
| CN114076168A (en) * | 2020-08-13 | 2022-02-22 | 采埃孚股份公司 | Damping valve device with a pilot valve and a main valve |
| CN216143256U (en) * | 2021-05-31 | 2022-03-29 | 绵阳富临精工股份有限公司 | Adjustable solenoid valve of continuous damping |
-
2024
- 2024-04-11 WO PCT/CN2024/087190 patent/WO2025213408A1/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07208637A (en) * | 1994-01-27 | 1995-08-11 | Konan Denki Kk | Piston-operated pilot type two-way port solenoid valve |
| CN107110276A (en) * | 2015-01-13 | 2017-08-29 | Zf腓特烈斯哈芬股份公司 | Adjustable damping valve arrangement |
| CN113728176A (en) * | 2019-03-06 | 2021-11-30 | 肯德隆（菲林根）有限公司 | Pressure regulating valve for controlling or regulating the pressure of a pressure fluid in a pilot pressure chamber and device having such a pressure regulating valve |
| CN113631833A (en) * | 2019-03-14 | 2021-11-09 | 肯德隆（菲林根）有限公司 | Pressure regulating valve and device having such a pressure regulating valve for controlling or regulating the pressure of a pressure fluid in a pilot pressure chamber |
| CN114076168A (en) * | 2020-08-13 | 2022-02-22 | 采埃孚股份公司 | Damping valve device with a pilot valve and a main valve |
| CN216143256U (en) * | 2021-05-31 | 2022-03-29 | 绵阳富临精工股份有限公司 | Adjustable solenoid valve of continuous damping |
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