Damping valve device and method of assembling same, shock absorber

Abstract

Provided are a damping valve device and an assembly method thereof, and a shock absorber. The assembly method comprises: installing an elastic component and a valve component into a housing, the elastic force of the elastic component being configured to act on the valve component in the axial direction of the housing, the valve component being configured to move in the axial direction of the housing, and the housing comprising a housing opening on the side of the valve component away from the elastic component in the axial direction; installing an adjusting piece into the housing on the side close to the housing opening; and installing at least part of a valve seat into the housing from the housing opening, until the valve seat abuts against the surface of the adjusting piece facing the housing opening and abuts against the valve component; the adjusting piece being configured to adjust the stress state of the elastic component after the valve seat is installed. Through the installation of the adjusting piece, the elastic component in the housing can be brought to a suitable stress state under the adjustment of the adjusting piece, and the cumulative errors of the parts during the installation process can be absorbed and corrected, thereby improving the product yield of the damping valve device.

Description

Technical Field

[0001] At least one embodiment of this disclosure relates to a damping valve device and its assembly method, and a shock absorber. Background Technology

[0002] In automobiles, damping valves are primarily used in shock absorbers within the suspension system. The damping valve is a key component inside the shock absorber, responsible for regulating and controlling the damping force during compression and rebound. However, due to the numerous components of the damping valve, its assembly is notoriously difficult to simplify. Summary of the Invention

[0003] At least one embodiment of this disclosure provides a method for assembling a damping valve device, a damping valve device, and a shock absorber.

[0004] At least one embodiment of this disclosure provides a method for assembling a damping valve device, comprising: installing at least one elastic member and a valve member into a housing, wherein the elastic force of the at least one elastic member is configured to act on the valve member along the axial direction of the housing, the valve member is configured to move within the housing along the axial direction, and the housing includes a housing opening on the side of the valve member away from the elastic member in the axial direction; installing an adjusting member into the housing near the housing opening; installing at least a portion of a valve seat into the housing from the housing opening until the valve seat abuts against the surface of the adjusting member facing the housing opening and against the valve member; wherein the adjusting member is configured to adjust the force state of the elastic member after the valve seat is installed.

[0005] For example, according to at least one embodiment of this disclosure, before installing the adjusting member inside the housing near the housing opening, the method further includes: determining a reference force that puts the elastic member in the preset force state; determining a reference plane based on the reference force on the plane containing the side surface of the valve member facing the housing opening; wherein the reference plane is perpendicular to the axial direction; and determining a plane based on the reference plane on the plane containing the side surface of the adjusting member facing the housing opening.

[0006] For example, according to at least one embodiment of the present disclosure, the side surface of the valve seat facing the adjusting member includes an intermediate region and a peripheral region surrounding the intermediate region; the intermediate region is configured to abut against the side surface of the valve component facing the housing opening after the valve seat is installed, and the peripheral region is configured to abut against the side surface of the adjusting member facing the housing opening after the valve seat is installed.

[0007] For example, according to at least one embodiment of this disclosure, determining the plane containing the side surface of the adjustment member facing the housing opening based on the reference plane includes: determining the distance between the plane containing the intermediate region and the plane containing the peripheral region in the axial direction; and determining the plane containing the side surface of the adjustment member facing the housing opening based on the distance and the reference plane.

[0008] For example, according to at least one embodiment of this disclosure, determining the reference force that puts the elastic component in the preset stress state includes: applying multiple forces to the valve component along the axial direction to obtain multiple test stress states of the elastic component; wherein the multiple test stress states correspond one-to-one with the multiple forces; comparing the multiple test stress states with the preset stress state of the elastic component to obtain the reference force corresponding to the preset stress state.

[0009] For example, according to at least one embodiment of the present disclosure, the assembly method further includes: installing an electromagnetic actuator and a pilot valve within the housing such that, in the axial direction, the electromagnetic actuator is located on the side of the pilot valve away from the valve component, and the pilot valve is located between the electromagnetic actuator and the valve component; the electromagnetic actuator is configured to provide an electromagnetic driving force to drive the pilot valve to move along the axial direction, and the at least one elastic member is configured to provide an elastic force opposite to the electromagnetic driving force.

[0010] For example, according to at least one embodiment of the present disclosure, the at least one elastic component includes a first elastic element connected along the axial direction between the end of the electromagnetic actuation portion away from the pilot valve and the housing; the adjusting member is configured to adjust the force state of the first elastic element after the valve seat is installed.

[0011] For example, according to at least one embodiment of the present disclosure, the valve component further includes a valve cover located between the pilot valve and the electromagnetic actuation unit in the axial direction, the valve cover being connected to the housing; the at least one elastic component includes a second elastic element; the second elastic element is connected along the axial direction between the end of the electromagnetic actuation unit facing the pilot valve and the valve cover; the adjusting member is configured to adjust the force state of the second elastic element after the valve seat is installed.

[0012] For example, according to at least one embodiment of the present disclosure, the inner wall of the housing is provided with a stepped portion, the stepped portion including a positioning surface facing the opening of the housing in the axial direction; the positioning surface is perpendicular to the axial direction and is configured to support the adjusting member.

[0013] For example, according to at least one embodiment of this disclosure, before installing the adjusting member inside the housing near the housing opening, the method further includes: obtaining the distance between the reference plane and the positioning surface in the axial direction; and determining the maximum size of the adjusting member in the axial direction based on the distance.

[0014] For example, according to at least one embodiment of this disclosure, before installing the adjusting member inside the housing near the housing opening, the method further includes: obtaining the distance between the reference plane and the positioning surface in the axial direction; and determining the number of the adjusting members based on the distance and a preset size of the adjusting member in the axial direction.

[0015] For example, according to at least one embodiment of this disclosure, the orthographic projection of the stepped portion onto a plane perpendicular to the axial direction includes a ring.

[0016] For example, according to at least one embodiment of the present disclosure, the housing is sleeved outside the housing, and the valve seat is located at one end of the housing near the opening of the housing.

[0017] For example, according to at least one embodiment of this disclosure, the orthographic projection of the adjusting member on a plane perpendicular to the axial direction comprises a ring.

[0018] At least one embodiment of this disclosure provides a damping valve device, comprising: a housing; at least one elastic member and a valve member, both disposed within the housing; the elastic force of the at least one elastic member is configured to act on the valve member along the axial direction of the housing, the valve member being configured to move within the housing along the axial direction, the housing including a housing opening on the side of the valve member away from the elastic member in the axial direction; an adjusting member disposed within the housing near the housing opening; a valve seat, at least a portion of which is disposed within the housing near the housing opening, and the valve seat being configured to abut against the surface of the adjusting member facing the housing opening and against the valve member; wherein the adjusting member is configured to adjust the force state of the elastic member.

[0019] At least one embodiment of this disclosure provides a shock absorber, including the damping valve device described in the above embodiments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0021] Figure 1This is a schematic flowchart illustrating the assembly method of a damping valve device provided in at least one embodiment of the present disclosure.

[0022] Figure 2 This is a schematic diagram of the structure of a damping valve device provided in at least one embodiment of the present disclosure.

[0023] Figure 3 for Figure 2 A magnified view of a portion of point A shown.

[0024] Figure 4 This is a schematic diagram of the orthographic projection of the adjusting member of the damping valve device provided in at least one embodiment of this disclosure.

[0025] Figure 5 This is a schematic flowchart illustrating the assembly method of a damping valve device provided in at least one embodiment of the present disclosure.

[0026] Figure 6 This is a schematic diagram of the orthographic projection of the stepped portion of the damping valve device provided in at least one embodiment of this disclosure. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0028] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0029] As used in this disclosure, the characteristics such as "perpendicular," "parallel," and "identical" include those in the strict sense, as well as those containing a certain degree of error, such as "approximately perpendicular," "approximately parallel," and "approximately identical," taking into account measurement and the errors associated with the measurement of a specific quantity (i.e., limitations of the measurement system). They represent the acceptable deviation range for a specific value as determined by a person skilled in the art. In embodiments of this disclosure, "center" can include a position strictly located at the geometric center as well as a position approximately at the center within a small area surrounding the geometric center. For example, "approximately" can mean within one or more standard deviations, or within 10% or 5% of the value.

[0030] In their research, the inventors of this application discovered that due to the large number of parts in a damping valve, numerous factors need to be considered during its assembly. Each part may have inherent dimensional, shape, and positional errors during manufacturing. As the number of parts increases, these errors accumulate, increasing the difficulty of precise alignment and fit during assembly. With an increased number of parts, the precision requirements for the fit between parts during assembly typically also increase to ensure the stability of the overall structure and the realization of its functions. Furthermore, after placing the valve core into the valve body, a spring needs to be installed on the valve core. The spring force needs to be adjusted according to design requirements to ensure that the damping valve produces an appropriate damping effect during operation. Therefore, these factors lead to a complex assembly process for damping valves, high assembly difficulty, and difficulty in improving product yield.

[0031] At least one embodiment of this disclosure provides a method for assembling a damping valve device, comprising: installing at least one elastic member and a valve member into a housing, wherein the elastic force of the at least one elastic member is configured to act on the valve member along the axial direction of the housing, the valve member is configured to move within the housing along the axial direction, and the housing includes a housing opening on the side of the valve member away from the elastic member in the axial direction; installing an adjusting member into the housing on the side near the housing opening; installing at least a portion of a valve seat into the housing from the housing opening until the valve seat abuts against the surface of the adjusting member facing the housing opening and against the valve member; the adjusting member is configured to adjust the force state of the elastic member after the valve seat is installed.

[0032] At least one embodiment of this disclosure provides a damping valve device, comprising: a housing; at least one elastic member and a valve member, both disposed within the housing; the elastic force of the at least one elastic member is configured to act on the valve member along the axial direction of the housing, the valve member being configured to move within the housing along the axial direction, the housing including a housing opening on the side of the valve member away from the elastic member in the axial direction; an adjusting member disposed within the housing near the housing opening; a valve seat, at least a portion of which is disposed within the housing near the housing opening, and the valve seat being configured to abut against the surface of the adjusting member facing the housing opening and against the valve member; the adjusting member being configured to adjust the force state of the elastic member.

[0033] At least one embodiment of this disclosure provides a shock absorber, including the damping valve device of the above embodiments.

[0034] At least one embodiment of the damping valve device and its assembly method, as well as the shock absorber, provided in this disclosure, after the elastic component and valve component are installed into the housing, provides a suitable installation position for the valve seat by means of an adjusting component. This ensures that after the valve seat is installed, the elastic component within the housing is in a suitable stress state under the adjustment of the adjusting component. Furthermore, the adjusting component can absorb and correct the cumulative errors of parts during installation, thereby improving the product yield of the damping valve device.

[0035] The damping valve device and its assembly method, as well as the shock absorber, are described below with reference to the accompanying drawings and through some embodiments.

[0036] Figure 1 This is a schematic flowchart illustrating the assembly method of a damping valve device provided in at least one embodiment of the present disclosure. Figure 2 This is a schematic diagram of the structure of a damping valve device provided in at least one embodiment of the present disclosure. Figure 3 for Figure 2 A magnified view of a portion of point A shown.

[0037] refer to Figures 1 to 3 At least one embodiment of this disclosure provides a method for assembling a damping valve device, including the following steps S110 to S130.

[0038] Step S110: Install at least one elastic member 300 and valve member 200 into housing 100. The elastic force of at least one elastic member 300 is configured to act on valve member 200 along the axial direction Y of housing 100. Valve member 200 is configured to move within housing 100 along the axial direction Y. Housing 100 includes housing opening 101 on the side of valve member 200 away from elastic member 300 in the axial direction Y.

[0039] Step S120: Install the adjusting member 400 inside the housing 100 on the side near the housing opening 101.

[0040] Step S130: At least a portion of the valve seat 500 is installed into the housing 100 through the housing opening 101 until the valve seat 500 abuts against the side surface of the adjusting member 400 facing the housing opening 101 and against the valve component 200; the adjusting member 400 is configured to adjust the force state of the elastic member 300 after the valve seat 500 is installed.

[0041] like Figures 1 to 3 As shown, after the elastic component 300 and valve component 200 are installed into the housing 100, the adjusting member 400 provides a suitable installation position for the valve seat 500. This ensures that after the valve seat 500 is installed, the elastic component 300 within the housing 100 is in a suitable stress state under the adjustment of the adjusting member 400. Furthermore, the adjusting member 400 can absorb and correct accumulated errors in the parts during installation, improving the product yield of the damping valve device.

[0042] refer to Figures 1 to 3 In step S110, the elastic component can be one or more. For example, in the initial state after the damping valve device is installed, the elastic component 300 can be pre-pressed directly or indirectly between the valve component 200 and the housing 100 along the axial direction Y. For example, other components (such as a pilot valve 700) can also be provided between the valve component 200 and the elastic component 300, and the elastic component 300 is connected between the other component and the housing 100 along the axial direction Y. In the initial state after the damping valve device is installed, the elastic component 300 can provide elastic force to the other component, thereby causing the valve component 200 to abut against the other component.

[0043] refer to Figures 1 to 3 For example, during the operation of the damping valve device, the elastic force of the elastic component 300 can act directly or indirectly on the valve component 200, thereby adjusting the damping force within the damping valve device through the combined action of the elastic component 300 and the damping medium. For example, the valve component 200 can move in the axial direction Y within the damping valve device by the damping force of the damping medium.

[0044] refer to Figures 1 to 3For example, the housing 100 can be a single-piece structure or it can be composed of multiple outer shell parts connected together. For example, the end of the housing 100 away from the housing opening 101 is a closed structure. When the housing 100 is composed of multiple outer shell parts, this disclosure does not limit the installation order of the housing, the resilient member, and the valve structure. For example, multiple outer shell parts can be connected to form a housing first, and then the resilient member and the valve component can be installed into the housing. Alternatively, the resilient member or other components can be installed into one of the outer shell parts, then another outer shell part can be installed, and then the valve component can be installed. Of course, the housing, the resilient member, and the valve component can also be installed in other ways, and this disclosure does not limit this.

[0045] refer to Figures 1 to 3 In steps S120 and S130, by installing the adjusting member 400 on the side near the housing opening 101, the cumulative assembly error of the parts can be compensated by the dimension of the adjusting member 400 in the axial direction Y, thereby providing a suitable installation position for the valve seat 500. After installing the valve seat 500, the damping valve device is in its initial installation state, with the valve seat 500 abutting against the surface of the adjusting member 400 facing the housing opening 101, and simultaneously against the surface of the valve component 200 facing the housing opening 101, so that the elastic component 300 is in a suitable stress state.

[0046] For example, the valve seat can be entirely located within the space enclosed by the housing, or it can be partially located inside the housing and partially exposed outside the housing. (Reference) Figures 1 to 3 The valve seat 500 may also have a channel that passes through the valve seat 500, so that when the damping valve device is in working condition, the damping medium can enter the housing 100 through the channel on the valve seat 500.

[0047] refer to Figures 1 to 3 In some examples, the housing 100 is fitted over the valve seat 500, and the valve seat 500 is located at the end of the housing 100 near the housing opening 101. For example, the valve seat 500 can be embedded within the housing 100 and fixedly connected to the housing 100. For example, the valve seat can be interference-fitted or riveted to the housing. For example, interference-fitted or riveted connections do not require additional processing of the outer surface of the valve seat 500 or the inner surface of the housing 100 (e.g., no additional tapping is required), simplifying the manufacturing process and preventing loosening due to wear.

[0048] Figure 4 This is a schematic diagram of the orthographic projection of the adjusting member of the damping valve device provided in at least one embodiment of this disclosure.

[0049] refer to Figures 2 to 4In some examples, the orthographic projection 400a of the adjusting member 400 onto a plane S1 perpendicular to the axial direction Y includes an annular shape, thereby providing uniform support force to the valve seat 500 in the circumferential direction. For example, the adjusting member 400 can be a continuous structure in the circumferential direction. For example, the adjusting member can be an annular gasket. For example, the adjusting member can also be a discontinuous structure in the circumferential direction, as long as the surfaces that support the valve seat and abut against the valve components are located on the reference plane, and this disclosure is not limiting in this regard.

[0050] refer to Figure 2 and Figure 3 In some examples, the side surface of the valve seat 500 facing the adjusting member 400 includes an intermediate region 510 and a peripheral region 520 surrounding the intermediate region 510. The intermediate region 510 is configured to abut against the side surface of the valve member 200 facing the housing opening 101 after the valve seat 500 is installed, and the peripheral region 520 is configured to abut against the side surface of the adjusting member 400 facing the housing opening 101 after the valve seat 500 is installed. For example, there is a radial gap between the peripheral region 520 and the intermediate region 510. Thus, in the operating state of the damping valve device, the movement of the valve member 200 in the axial direction Y is not interfered with by the adjusting member 400. For example, after the valve seat 500 is installed, in the initial state of the damping valve device, the adjusting member 400 is located on the outer periphery of the valve member 200. For example, the outer diameter of the valve member 200 is smaller than the inner diameter of the adjusting member 400. For example, on a plane perpendicular to the axial direction Y, the orthographic projection of the adjusting member 400 surrounds the orthographic projection of the valve member 200 without overlapping.

[0051] Figure 5 This is a schematic flowchart illustrating the assembly method of a damping valve device provided in at least one embodiment of the present disclosure.

[0052] refer to Figure 2 , Figure 3 and Figure 5 In some examples, steps S101 to S103 are included before step S120.

[0053] Step S101: Determine the reference force that puts the elastic component 300 into a preset stress state.

[0054] Step S102: Based on the reference force, determine the plane on the side of the valve component 200 facing the housing opening 101 as the reference plane S0, and the reference plane S0 is perpendicular to the axial direction Y.

[0055] Step S103: Determine the plane on the side surface of the adjusting member 400 facing the housing opening 101 based on the reference plane S0.

[0056] refer to Figure 2 , Figure 3 and Figure 5 In step S101, the preset force state can be the force state of the elastic component 300 obtained based on the preset damping force of the damping valve device. Correspondingly, the reference force can be the force obtained based on the preset damping force of the damping valve device.

[0057] refer to Figure 2 , Figure 3 and Figure 5 In step S102, after the valve component 200 is subjected to a reference force, the valve component 200 moves along the axial direction Y, and the elastic component 300 undergoes elastic deformation. After the damping valve device is assembled, the plane containing the side surface of the valve component 200 facing the housing opening 101 after movement can be the plane containing the surfaces of the valve seat 500 and the valve component 200 that abut against each other, thus obtaining the reference plane S0. For example, the side surface of the valve component 200 facing the housing opening 101 can be an uneven surface, then the reference plane S0 is the plane containing the highest point of that uneven surface. For example, the direction of the reference force can be parallel to the axial direction Y, thus being parallel to the direction of the elastic force of the elastic component 300.

[0058] refer to Figure 2 , Figure 3 and Figure 5 In step S103, the plane on which the side surface of the adjusting member 400 facing the housing opening 101 is located can be determined by the reference plane S0, so that after the valve seat 500 is installed, the valve seat 500 and the adjusting member 400 abut against each other, and the side surface of the valve seat 500 facing the valve component 200 is located on the reference plane S0 to abut against the valve component 200.

[0059] refer to Figure 2 , Figure 3 and Figure 5 In some examples, step S101 includes applying multiple forces to the valve component 200 along the axial direction Y to obtain multiple test force states of the elastic component 300, with each test force state corresponding to one of the multiple forces. The multiple test force states are compared with preset force states of the elastic component 300 to obtain a reference force corresponding to the preset force state.

[0060] refer to Figure 2 , Figure 3 and Figure 5 By applying multiple different forces to the valve component 200, the elastic component 300 can undergo different degrees of elastic deformation under different forces, thereby obtaining different test stress states. By comparing multiple different test stress states with preset stress states, the force experienced by the test stress state that is the same as the preset stress state is determined as the reference force.

[0061] refer to Figure 2 , Figure 3 and Figure 5 In some examples, step S103 may further include: determining the distance in the axial direction between the plane containing the intermediate region 510 and the plane containing the peripheral region 520. The plane containing the side surface of the adjusting member facing the housing opening is determined based on the distance and the reference plane S0. For example, the side surface of the valve seat 500 facing the valve component 200 may have a different height.

[0062] For example, the plane containing the central region and the peripheral region of the valve seat can be on the same plane, meaning the distance between the plane containing the central region and the plane containing the peripheral region in the axial direction is 0. In this case, when the damping valve device is in its initial state after installation, the surface of the valve seat that abuts against the valve component can be flush with the surface of the valve seat that abuts against the adjusting component. At this time, there is no need to consider the height difference between the central and peripheral regions, and the surface of the valve component (i.e., the reference plane) under the reference force is on the same plane as the surface of the adjusting component facing the valve seat.

[0063] For example, the planes containing the central and peripheral areas of the valve seat may not be on the same plane; that is, the distance between the plane containing the central area and the plane containing the peripheral area in the axial direction is not zero. In this case, when the damping valve device is in its initial state after installation, the surfaces of the valve seat that abut against the valve components and the surfaces of the valve seat that abut against the adjusting element are not flush. In this situation, the plane containing the side of the adjusting element facing the valve seat can be determined based on the height difference between the central and peripheral areas and a reference plane.

[0064] refer to Figure 2 and Figure 3 In some examples, the assembly method further includes: installing an electromagnetic actuator 600 and a pilot valve 700 within the housing 100 such that, in the axial direction Y, the electromagnetic actuator 600 is located on the side of the pilot valve 700 away from the valve component 200, and the pilot valve 700 is located between the electromagnetic actuator 600 and the valve component 200. The electromagnetic actuator 600 is configured to provide an electromagnetic driving force to drive the pilot valve 700 to move in the axial direction Y, and at least one elastic member 300 is configured to provide an elastic force opposite to the electromagnetic driving force to reset the pilot valve 700 via the elastic member 300. For example, in the initial state of the damping valve device, the pilot valve 700 can abut against the valve component 200. In the operating state of the damping valve device, the electromagnetic actuator 600 and the elastic member 300 can work together to cause the pilot valve 700 to abut or disengage from the valve component 200 to adjust the damping force within the damping valve device.

[0065] refer to Figure 2 and Figure 3In some examples, at least one elastic component 300 includes a first elastic element 310 connected along the axial direction Y between the end of the electromagnetic actuator 600 away from the pilot valve 700 and the housing 100. An adjusting member 400 is configured to adjust the force state of the first elastic element 310 after the valve seat 500 is installed. For example, the first elastic element 310 is disposed within the housing 100 near the closed end. For example, when testing by applying multiple forces to the valve component 200, a reference force can be determined by identifying a preset force state that satisfies the first elastic element 310.

[0066] refer to Figure 2 and Figure 3 In some examples, the damping valve assembly further includes a valve cover 800 located in the axial direction Y between the pilot valve 700 and the electromagnetic actuator 600, and at least one elastic member 300 includes a second elastic element 320. The second elastic element 320 is connected along the axial direction Y between the end of the electromagnetic actuator 600 facing the pilot valve 700 and the valve cover 800, which is connected to the housing 100. For example, the valve cover 800 may be interference-fitted with the housing 100. For example, the valve cover may be threaded to the housing. The adjusting member 400 is configured to adjust the force state of the second elastic element 320 after the valve seat 500 is installed. For example, when testing by applying multiple forces to the valve assembly 200, a reference force can be determined by determining a preset force state that satisfies the second elastic element 320.

[0067] refer to Figure 2 and Figure 3 For example, when the elastic component 300 includes both a first elastic element 310 and a second elastic element 320, the force states of the first elastic element 310 and the second elastic element 320 can be considered simultaneously to determine the reference force that satisfies the preset force state of the elastic component 300. It is understood that the elastic component may also include other elastic elements, and this disclosure does not limit this.

[0068] refer to Figure 2 and Figure 3 In some examples, the inner wall of the housing 100 is provided with a stepped portion 123, which includes a positioning surface 1231 facing the housing opening 101 in the axial direction Y. The positioning surface 1231 is perpendicular to the axial direction Y and is configured to support the adjusting member 400. By providing the stepped portion 123, a positioning position can be provided for the adjusting member 400 to support the adjusting member 400 in the axial direction Y. For example, after the valve seat 500 is installed, the adjusting member 400 is clamped between the stepped portion 123 and the valve seat 500.

[0069] Figure 6This is a schematic diagram of the orthographic projection of the stepped portion 123 of the damping valve device provided in at least one embodiment of the present disclosure.

[0070] refer to Figure 2 , Figure 3 and Figure 6 For example, the orthographic projection 123a of the step portion 123 onto a plane S1 perpendicular to the axial direction Y includes a ring shape. For example, the step portion 123 may be a continuous structure, and the step portion 123 may be arranged circumferentially around the inner wall of the housing 100, thereby providing a more uniform support force to the adjusting member 400 in the circumferential direction. Furthermore, providing a continuous step portion 123 simplifies the manufacturing process and reduces costs. In other examples, the step portion may be a discontinuous structure intermittently arranged in the circumferential direction of the inner wall of the housing, as long as it can support the adjusting member; this disclosure does not impose any limitations on this.

[0071] refer to Figure 2 and Figure 3 In some examples, before step S120, the method further includes: obtaining the distance D between the reference plane S0 and the positioning surface 1231 in the axial direction Y, and determining the maximum size of the adjusting member 400 in the axial direction Y based on the distance D. For example, the distance D between the reference plane S0 and the positioning surface 1231 in the axial direction Y is equal to the maximum size of the adjusting member 400 in the axial direction Y. Thus, by determining the maximum size of the adjusting member 400 in the axial direction Y through the distance D, after installing the adjusting member 400 with this maximum size onto the positioning surface 1231 of the step portion 123, cumulative error compensation can be performed based on the maximum size of the adjusting member. Furthermore, after installing the valve seat 500, the side surface of the valve seat 500 facing the valve component 200 can be positioned on the reference plane S0 to abut against the valve component 200, and the side surface of the valve component 200 facing the valve seat 500 is positioned on the reference plane S0, thereby placing the elastic member in a preset stress state. For example, the maximum dimension of the adjusting member 400 in the axial direction Y can be the maximum thickness of the adjusting member 400.

[0072] In some examples, before step S120, the method further includes: obtaining the distance between the reference plane and the positioning surface in the axial direction, and determining the number of adjusting members based on the distance and the preset size of the adjusting member in the axial direction. For example, the product of the preset size of the adjusting member in the axial direction and the number of adjusting members is equal to the distance. For example, after determining the distance between the reference plane and the positioning surface, the number of adjusting members can be determined according to the preset size of one adjusting member, so that by installing multiple adjusting members, the surface of the adjusting member closest to the housing opening (e.g., the outermost adjusting member) facing the housing opening provides a suitable mounting position for the valve seat.

[0073] refer to Figure 2 and Figure 3This disclosure provides at least one embodiment of a damping valve device, comprising: a housing 100; at least one elastic member 300 and a valve member 200, both disposed within the housing 100; the elastic force of the at least one elastic member 300 is configured to act on the valve member 200 along the axial direction Y of the housing 100, the valve member 200 is configured to move within the housing 100 along the axial direction Y, the housing 100 including a housing opening 101 on the side of the valve member 200 away from the elastic member 300 in the axial direction Y; an adjusting member 400 disposed within the housing 100 near the housing opening 101; a valve seat 500, at least a portion of which is disposed within the housing 100 near the housing opening 101, and the valve seat 500 is configured to abut against the surface of the adjusting member 400 facing the housing opening 101 and against the valve member 200; the adjusting member 400 is configured to adjust the force state of the elastic member 300.

[0074] Since the damping valve device according to the embodiments of this disclosure is assembled by the above assembly method, it also has corresponding beneficial technical effects, which will not be described in detail here.

[0075] refer to Figure 2 and Figure 3 For example, housing 100 includes a solenoid valve housing 110. For example, the end of the solenoid valve housing 110 away from housing opening 101 is a closed end. Electromagnetic actuator 600 includes an armature 610, a valve stem 620, and a coil 630. The armature 610 is located within the solenoid valve housing 110 and is configured to be guided to reciprocate along the axial direction Y within the solenoid valve housing 110. For example, the radial distance between the armature 610 and the solenoid valve housing 110 can be less than 0.2 mm to guide the armature 610. For example, the solenoid valve housing 110 and the armature 610 may have a clearance fit or direct contact. The coil 630 may be wound around the outside of the solenoid valve housing 110. The valve stem 620 passes through and is fixedly connected to the valve armature 610. Both ends of the valve stem 620 can protrude from the valve armature 610 along the axial direction Y. A pilot valve 700 is connected to the end of the valve stem 620 near the valve seat 500, so that the valve stem 620 drives the pilot valve 700 to reciprocate along the axial direction Y. For example, the valve stem may also protrude from the valve armature only at the end facing the pilot valve; this disclosure does not limit this.

[0076] refer to Figure 2 and Figure 3For example, the two ends of the valve stem 620 can be spaced at least 2 mm from their adjacent components, thus avoiding being guided by these components. For instance, neither end of the valve stem 620 is subjected to radial support force, allowing the armature 610 to be moved by the solenoid valve housing 110. Therefore, only the concentricity of the armature 610 and the solenoid valve housing 110 needs to be considered, which helps reduce the difficulty of manufacturing the parts and improve product yield. Furthermore, since neither end of the valve stem 620 is subjected to radial support force, there is no need to consider frictional losses between the valve stem 620 and its adjacent components, thus eliminating the need for additional hardening treatment of the valve stem 620, simplifying the manufacturing process and reducing costs.

[0077] For example, a friction-reducing element 112 is provided between the solenoid valve housing 110 and the solenoid valve armature 610 to lubricate both, thereby reducing the friction between them. For instance, the friction-reducing element can also be a lubricating material coating applied to the inner wall of the solenoid valve housing. Furthermore, since the friction-reducing element 112 is located between the solenoid valve armature 610 and the solenoid valve housing 110, there is no need to consider the friction generated between them, and no hardening treatment is required on the outer peripheral wall of the solenoid valve armature 610.

[0078] refer to Figure 2 and Figure 3 For example, the damping valve device also includes a valve cover 800 sleeved over the valve stem 620, which is connected to the solenoid valve housing 110. For instance, the coil 630 can generate a magnetic field within itself based on the principle of electromagnetic induction, thereby driving the valve armature 610 to move in a first direction. After the coil 630 is de-energized, the valve armature 610 can be reset by the elastic force of the elastic member 300. Of course, the damping valve device may have only one or more elastic members, as long as they can provide the elastic force for the valve armature to reset; this disclosure does not impose any limitations on this.

[0079] refer to Figure 2 and Figure 3 For example, the damping valve device also includes a mounting member 900 sleeved around the valve stem 620, the mounting member 900 being disposed between the valve stem 620 and the valve cover 800 and fixedly connected to the valve cover 800. An elastic member 300 is connected along the axial direction Y between the mounting member 900 and the valve armature 610, thereby providing a mounting position for the elastic member 300 through the mounting member 900, so as to provide an elastic force for resetting the valve armature 610 through the elastic member 300.

[0080] refer to Figure 2 and Figure 3For example, the housing 100 also includes a main valve sleeve 120, which is connected to the solenoid valve housing 110 along the axial direction Y. For example, the opening at the end of the main valve sleeve 120 away from the solenoid valve housing 110 is the housing opening 101. The main valve sleeve 120 is configured to support the valve component 200, and is directly connected to the valve seat 500, and is an integral structure. For example, the main valve sleeve can be interference-fitted with the valve seat. For example, the main valve sleeve can be riveted to the valve seat. For example, the damping medium can be a damping fluid.

[0081] refer to Figure 2 and Figure 3 The main valve sleeve 120 in the damping valve device supports the valve component 200 and is directly connected to the valve seat 500. The main valve sleeve 120 is an integral structure, which can reduce the number of parts in the damping valve device, simplify the assembly process, reduce the cumulative error of the assembled parts, and improve the product yield.

[0082] refer to Figure 2 and Figure 3 For example, the main valve sleeve 120 includes a cylindrical body portion 121 and a support portion 122 that divides the receiving cavity 121a of the cylindrical body portion 121 into two parts along the axial direction Y. For example, the support portion 122 is provided with a guide hole 1221 that extends through the support portion 122 along the axial direction Y. The guide hole 1221 and the cylindrical body portion 121 are configured to jointly support the valve component 200 and guide the movement of the valve component 200 to prevent the movement of the valve component 200 from deviating.

[0083] refer to Figure 2 and Figure 3 For example, the receiving cavity 121a includes a first cavity 021 located between the support portion 122 and the valve seat 500, and a second cavity 022 located between the support portion 122 and the solenoid valve housing 110. The valve component 200 is at least partially located in the first cavity 021, and the pilot valve 700 is located in the second cavity 022. For example, the first cavity 021 is a chamber near the lower part of the main valve sleeve 120, and the second cavity 022 is a chamber near the upper part of the main valve sleeve 120.

[0084] refer to Figure 2 and Figure 3For example, valve component 200 includes a first portion 210 and a second portion 220 connected to each other. The first portion 210 is configured to slide into a cylindrical body portion 121. For example, a sealing ring 230 is fitted onto the first portion 210. The second portion 220 extends along the axial direction Y to enter a guide hole 1221. For example, the second portion 220 may be clearance-fitted with the guide hole 1221 to be guided by the guide hole 1221. For example, the first portion 210 may be clearance-fitted with the cylindrical body portion 121 to be guided by the cylindrical body portion 121. For example, the pressure of the damping medium can adjust the position of valve component 200 and adjust the size of the chambers located on both sides of the first portion 210, thereby changing the damping force of the damping valve device.

[0085] refer to Figure 2 and Figure 3 For example, a first channel 120a is provided inside the cylindrical main body 121, and the first channel 120a connects the second cavity 022 and the external space. For example, the first channel 120a can directly or indirectly connect the second cavity 022 and the external space. In conjunction with the example described later, the damping medium can flow from the second cavity 022 into the first cavity 021 through the first channel 120a, and flow out to the external space through the second channel provided on the valve seat.

[0086] In other examples, the first channel may also directly connect the second cavity and the external space, so that the damping medium flows directly from the second cavity to the external space. It is understood that the first channel may extend along the axial direction, or along a straight line intersecting the axial direction, or a portion of the first channel may be bent, as long as it can connect the second cavity and the external space, and this disclosure does not impose any restrictions on this.

[0087] refer to Figure 2 and Figure 3 For example, a second channel 501 is provided on the valve seat 500, and the second channel 501 is configured to connect the first channel 120a and the external space. For example, the second channel 501 extends through the valve seat 500 and along the axial direction Y. For example, the damping medium can flow out to the external space through the first channel 120a and the second channel 501. On a reference plane perpendicular to the axial direction Y, the area of ​​the orthographic projection of the first channel 120a is not greater than the area of ​​the orthographic projection of the second channel 501, so as to prevent the damping medium from being throttled when flowing out through the second channel 501.

[0088] At least one embodiment of this disclosure provides a shock absorber, including the damping valve device of the above embodiments.

[0089] Since the damping valve device according to the embodiments of this disclosure is used in the above-mentioned shock absorber, it also has corresponding beneficial technical effects, which will not be described in detail here.

[0090] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

[0091] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0092] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

[0093] The following points need to be explained:

[0094] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0095] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0096] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A method for assembling a damping valve device, comprising: At least one elastic member and a valve member are mounted in a housing, wherein the elastic force of the at least one elastic member is configured to act on the valve member along the axial direction of the housing, the valve member is configured to move within the housing along the axial direction, and the housing includes a housing opening on the side of the valve member away from the elastic member in the axial direction; The adjusting element is installed inside the housing on the side near the opening of the housing; At least a portion of the valve seat is installed inside the housing through the housing opening, until the valve seat abuts against the side surface of the adjusting member facing the housing opening and against the valve component; the valve seat is interference-fitted with the housing; The adjusting member is configured to adjust the force state of the elastic component after the valve seat is installed; Before installing the adjusting member inside the housing near the housing opening, the method further includes: Determine the reference force that puts the elastic component into a preset stress state; The plane containing the side surface of the valve component facing the housing opening, determined based on the reference force, is designated as the reference plane; wherein, the reference plane is perpendicular to the axial direction; The plane containing the side surface of the adjusting member facing the opening of the housing is determined based on the reference plane; The method further includes: installing an electromagnetic actuator and a pilot valve inside the housing, such that, in the axial direction, the electromagnetic actuator is located on the side of the pilot valve away from the valve component, and the pilot valve is located between the electromagnetic actuator and the valve component; The electromagnetic actuator is configured to provide an electromagnetic driving force that drives the pilot valve to move along the axial direction, and the at least one elastic member is configured to provide an elastic force opposite to the electromagnetic driving force to reset the pilot valve through the elastic member; the elastic member is located on the side of the pilot valve away from the valve component.

2. The assembly method according to claim 1, wherein, The valve seat surface facing the regulating member includes a central region and a peripheral region surrounding the central region; The intermediate region is configured to abut against the side surface of the valve component facing the housing opening after the valve seat is installed, and the peripheral region is configured to abut against the side surface of the adjusting member facing the housing opening after the valve seat is installed.

3. The assembly method according to claim 2, wherein, Determining the plane containing the side surface of the adjusting member facing the housing opening based on the reference plane includes: Determine the distance between the plane containing the intermediate region and the plane containing the peripheral region along the axial direction; The plane containing the side surface of the adjusting member facing the housing opening is determined based on the distance and the reference plane.

4. The assembly method according to claim 1, wherein, Determining the reference force that puts the elastic component into the preset stress state includes: Multiple forces are applied to the valve component along the axial direction to obtain multiple test force states of the elastic component; wherein, the multiple test force states correspond one-to-one with the multiple forces. The multiple test force states are compared with the preset force states of the elastic component to obtain the reference force corresponding to the preset force states.

5. The assembly method according to claim 1, wherein, The at least one elastic component includes a first elastic element, which is connected along the axial direction between the end of the electromagnetic actuation part away from the pilot valve and the housing. The adjusting element is configured to adjust the force state of the first elastic element after the valve seat is installed.

6. The assembly method according to claim 1, wherein, The valve component further includes a valve cover located between the pilot valve and the electromagnetic actuation unit in the axial direction, the valve cover being connected to the housing; the at least one elastic component includes a second elastic element; the second elastic element is connected along the axial direction between the end of the electromagnetic actuation unit facing the pilot valve and the valve cover; The adjusting element is configured to adjust the force state of the second elastic element after the valve seat is installed.

7. The assembly method according to claim 1, wherein, The inner wall of the housing is provided with a stepped portion, the stepped portion including a positioning surface facing the opening of the housing in the axial direction; The positioning surface is perpendicular to the axial direction and is configured to support the adjusting member.

8. The assembly method according to claim 7, wherein, Before installing the adjusting member inside the housing near the housing opening, the method further includes: Obtain the distance between the reference plane and the positioning surface in the axial direction; The maximum dimension of the adjusting member in the axial direction is determined based on the spacing.

9. The assembly method according to claim 7, wherein, Before installing the adjusting member inside the housing near the housing opening, the method further includes: Obtain the distance between the reference plane and the positioning surface in the axial direction; The number of the adjusting members is determined based on the spacing and the preset size of the adjusting members in the axial direction.

10. The assembly method according to claim 7, wherein, The orthographic projection of the stepped portion onto a plane perpendicular to the axial direction includes a ring.

11. The assembly method according to any one of claims 1-10, wherein, The housing is fitted over the valve seat, and the valve seat is located at the end of the housing near the opening of the housing.

12. The assembly method according to any one of claims 1-10, wherein, The orthographic projection of the adjusting member onto a plane perpendicular to the axial direction comprises a ring.

13. A damping valve device assembled by the assembly method according to claim 1, comprising: case; At least one elastic component and a valve component are both disposed within the housing; The elastic force of the at least one elastic member is configured to act on the valve member along the axial direction of the housing, the valve member is configured to move within the housing along the axial direction, and the housing includes a housing opening on the side of the valve member away from the elastic member in the axial direction. An adjusting element is located inside the housing on the side near the opening of the housing; A valve seat, at least a portion of which is disposed within the housing on a side near the housing opening, and the valve seat is configured to abut against the surface of the adjusting member facing the housing opening and against the valve component; the valve seat is interference-fitted with the housing; The adjusting member is configured to adjust the force state of the elastic component.

14. A shock absorber comprising the damping valve device according to claim 13.

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