Damper mechanism and shock absorber

Abstract

The damper mechanism comprises a first sleeve, a coil fixing seat and an electromagnetic valve control portion, the electromagnetic valve control portion comprises a shell, a valve deck and a valve armature, a containing cavity is formed between the shell and the valve deck, the shell is provided with a first channel, and the first channel is communicated with the valve deck. A first connecting channel is arranged between the first end face, close to the annular wall, of the shell and the coil fixing base, the coil fixing base is provided with a second channel, the first sleeve is provided with a third channel, the first end of the first channel is communicated with the containing cavity, the second end of the first channel is communicated with the first connecting channel, and the first end of the second channel is communicated with the first connecting channel. The second end of the second channel is communicated with the first end of the third channel, the second end of the third channel is communicated with the outside of the first sleeve, and the damper mechanism can effectively exhaust gas in the containing cavity, is easy to manufacture and install and has good consistency.

Description

Technical Field

[0001] At least one embodiment of the utility model relates to a damper mechanism and a shock absorber. Background Art

[0002] With the rapid development of the automobile industry, people have higher and higher requirements for the comfort of automobiles. The shock absorbers in the automobile suspension system can reduce the vibration of the frame and the body to improve the smoothness of the car's driving. For example, for hydraulic cylinder shock absorbers, when the frame and the axle move relative to each other due to vibration, the piston rod in the shock absorber moves up and down, and the oil in the shock absorber cavity repeatedly flows from one chamber to another, thereby converting the kinetic energy generated by the relative movement between the shock absorber piston rod assembly and the shock absorber cylinder assembly into the heat energy of the oil and dissipating it outward, thereby playing a damping role. In order to better adapt to different driving environments, it is crucial to improve the operating performance of automobile shock absorbers. Utility Model Content

[0003] The embodiments of the utility model provide a damper mechanism and a shock absorber.

[0004] At least one embodiment of the utility model provides a damper mechanism, which includes a first sleeve and a coil fixing seat and a solenoid valve control part located in the first sleeve, the first sleeve includes a first opening and an annular wall arranged opposite to the first opening, the solenoid valve control part is located on a side of the coil fixing seat close to the first opening, and includes a shell, a valve cover and a valve armature, the shell is located on a side of the valve cover facing the annular wall, a receiving chamber is provided between the shell and the valve cover, the valve armature is provided in the receiving chamber and is configured to reciprocate in the receiving chamber along a first direction, the first direction is the axial direction of the first sleeve, wherein the shell has a first channel, a first connecting channel is provided between a first end surface of the shell close to the annular wall and the coil fixing seat, the coil fixing seat has a second channel, the first sleeve has a third channel, a first end of the first channel is communicated with the receiving chamber, a second end of the first channel is communicated with the first connecting channel, a first end of the second channel is communicated with the first connecting channel, a second end of the second channel is communicated with a first end of the third channel, and a second end of the third channel is communicated with the outside of the first sleeve.

[0005] For example, according to the damper mechanism provided by at least one embodiment of the present invention, the damper mechanism also includes a second sleeve and a valve core assembly chamber, the second sleeve includes a second opening and a third opening that are relatively arranged, the second opening of the second sleeve and a portion close to the second opening extend into the first sleeve through the first opening; the valve core assembly chamber is located in the second sleeve; wherein the valve armature includes a first internal channel, the first internal channel passes through the valve armature along the first direction, the first internal channel is connected to the accommodating chamber, and the valve cover includes a second internal channel, and the accommodating chamber is connected to the valve core assembly chamber through the second internal channel.

[0006] For example, according to the damper mechanism provided by at least one embodiment of the present utility model, the first channel is located on the side of the first connecting channel close to the valve armature in the first direction, the second channel is located on the side of the first connecting channel close to the third channel in the second direction, the first channel extends along the first direction, the second channel and the third channel both extend along the second direction, and the second direction is the radial direction of the first sleeve.

[0007] For example, according to the damper mechanism provided by at least one embodiment of the present invention, in the first direction, there is a first distance between the first end surface of the shell and the surface of the coil fixing seat facing the first end surface to form the first connecting channel.

[0008] For example, according to the damper mechanism provided by at least one embodiment of the present invention, at least one of the first end surface of the shell and the surface of the coil fixing seat facing the first end surface has a first groove, and the first groove serves as the first connecting channel.

[0009] For example, according to the damper mechanism provided by at least one embodiment of the present utility model, the first end surface of the shell has the first groove, and the first end surface is in contact with the surface of the coil fixing seat facing the first end surface.

[0010] For example, according to the damper mechanism provided by at least one embodiment of the present utility model, the damper mechanism also includes a valve core assembly, the valve core assembly is located in the valve core assembly chamber and is connected to the solenoid valve control unit, the solenoid valve control unit also includes a rod body passing through the valve armature, the rod body is configured to transmit the regulating force on the valve armature to the valve core assembly, a guide sleeve is provided at the end of the accommodating chamber away from the second sleeve, at least a part of the rod body close to the annular wall is located in the guide sleeve, wherein the accommodating chamber includes a sub-chamber, the sub-chamber is located between the end of the valve armature away from the valve cover and the guide sleeve, a second connecting channel is provided between the guide sleeve and the surfaces facing each other of the shell, and the sub-chamber is connected to the first channel through the second connecting channel.

[0011] For example, according to the damper mechanism provided by at least one embodiment of the present invention, the second connecting channel includes a second groove and a third groove, the second groove is located on at least one of the outer wall of the guide sleeve and the surface of the shell facing the outer wall, the second groove is connected to the sub-cavity, the third groove is located on at least one of the surfaces of the guide sleeve and the shell facing each other in the first direction, the third groove is connected to the second groove, and the third groove is connected to the first channel.

[0012] For example, in the damper mechanism provided by at least one embodiment of the present invention, the outer wall of the guide sleeve and at least one of the surfaces of the shell facing the outer wall have a second groove, the second groove is connected to the sub-cavity, and the side wall of the guide sleeve has at least one through hole, and the through hole is connected to the second groove.

[0013] For example, according to the damper mechanism provided by at least one embodiment of the present invention, in the first direction, the surface of the guide sleeve facing the housing in the first direction contacts the housing.

[0014] For example, in the damper mechanism provided according to at least one embodiment of the present invention, the outer wall of the guide sleeve and at least one of the surfaces of the shell facing the outer wall have a second groove, the second groove is connected to the sub-cavity, and a second distance is provided between the second end surface of the guide sleeve close to the annular wall and the surface of the shell facing the second end surface, so that the second groove is connected to the first channel.

[0015] For example, according to the damper mechanism provided by at least one embodiment of the present utility model, the central axis of the first channel coincides with the central axis of the housing.

[0016] For example, according to the damper mechanism provided by at least one embodiment of the present invention, the accommodating chamber includes a sub-chamber, the sub-chamber is located between the end of the valve armature away from the valve cover and the guide sleeve, and the first channel is directly connected to the sub-chamber.

[0017] For example, according to the damper mechanism provided by at least one embodiment of the present invention, in the second direction, the first channel is located between the central axis of the housing and the second channel.

[0018] For example, according to the damper mechanism provided by at least one embodiment of the present utility model, a first sealing ring is provided between the outer wall of the shell away from the valve armature and the coil fixing seat, a second sealing ring and a third sealing ring are provided between the outer wall of the coil fixing seat and the first sleeve, the first sealing ring, the second sealing ring and the third sealing ring all surround the central axis of the shell, and the second sealing ring and the third sealing ring are respectively located on both sides of the second channel in the first direction.

[0019] For example, in the damper mechanism provided by at least one embodiment of the present utility model, the channels connected in sequence by the first channel, the first connecting channel, the second channel, and the third channel also include a retraction portion, and any one of the flow cross-sectional area of ​​the first channel, the flow cross-sectional area of ​​the first connecting channel, the flow cross-sectional area of ​​the second channel, and the flow cross-sectional area of ​​the third channel is larger than the flow cross-sectional area of ​​the retraction portion.

[0020] For example, in the damper mechanism provided by at least one embodiment of the present invention, the inner diameter of the retraction portion is 0.25 mm to 0.35 mm.

[0021] For example, according to the damper mechanism provided by at least one embodiment of the present invention, the retraction portion is located between the first connecting channel and the second channel, one end of the retraction portion is connected to the first connecting channel, and the other end of the retraction portion is connected to the first end of the second channel.

[0022] For example, according to the damper mechanism provided by at least one embodiment of the present invention, the shell is provided with a plurality of the first channels communicating with the accommodating cavity, and the ports of the plurality of first channels are distributed at intervals on the first end surface of the shell.

[0023] At least one embodiment of the present utility model further provides a shock absorber, comprising the damper mechanism provided by any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present utility model, rather than limiting the present utility model.

[0025] Figure 1 A schematic diagram of a damper mechanism provided in at least one embodiment of the utility model.

[0026] Figure 2 for Figure 1 A partial enlarged schematic diagram of the damper mechanism in FIG.

[0027] Figure 3 for Figure 1 Another partial enlarged schematic diagram of the damper mechanism in FIG.

[0028] Figure 4 A schematic diagram of the partial structure of another damper mechanism provided for at least one embodiment of the utility model.

[0029] Figure 5 A partial structural schematic diagram of yet another damper mechanism provided for at least one embodiment of the utility model.

[0030] Figure 6 A partial structural schematic diagram of yet another damper mechanism provided for at least one embodiment of the utility model. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Unless otherwise defined, the technical terms or scientific terms used in this utility model shall have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The words "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0033] Generally, in a car's shock absorber, the damper mechanism can prevent the vehicle from swaying or vibrating too much when passing through bumpy roads, which can not only improve the vehicle's driving stability and comfort, but also extend the vehicle's service life.

[0034] During the research, the inventor of the present application found that: during the operation of the shock absorber, the damping fluid in the shock absorber cavity may foam during circulation, thereby causing the uniformity of the medium in the shock absorber cavity to deteriorate; at the same time, the gas generated in the shock absorber cavity may cause a sudden increase in the air pressure in the shock absorber cavity, thereby causing the operation of the shock absorber system to be unstable. In addition, since the structure of the shock absorber is relatively complex, in order to effectively discharge the gas in the shock absorber cavity, setting up an exhaust channel in the shock absorber has certain design and installation difficulties, and its manufacturing cost is relatively high.

[0035] At least one embodiment of the utility model provides a damper mechanism and a shock absorber.

[0036] The damper mechanism provided by the embodiment of the utility model includes a first sleeve and a coil fixing seat and a solenoid valve control part located in the first sleeve, the first sleeve includes a first opening and an annular wall arranged opposite to the first opening, the solenoid valve control part is located on the side of the coil fixing seat close to the first opening, and includes a shell, a valve cover and a valve armature, the shell is located on the side of the valve cover facing the annular wall, a receiving chamber is provided between the shell and the valve cover, the valve armature is provided in the receiving chamber and is configured to reciprocate in the receiving chamber along a first direction, the first direction is the axial direction of the first sleeve, wherein the shell has a first channel, a first connecting channel is provided between the first end face of the shell close to the annular wall and the coil fixing seat, the coil fixing seat has a second channel, the first sleeve has a third channel, the first end of the first channel is connected to the receiving chamber, the second end of the first channel is connected to the first connecting channel, the first end of the second channel is connected to the first connecting channel, the second end of the second channel is connected to the first end of the third channel, and the second end of the third channel is connected to the outside of the first sleeve.

[0037] The damper mechanism provided in the embodiment of the utility model can discharge the gas in the accommodating chamber and the cavity connected to the accommodating chamber by setting the above-mentioned channel, so as to maintain the internal air pressure of the damper mechanism stable and make the uniformity of the flowing medium in the damper mechanism good; at the same time, in the damper mechanism, a first connecting channel is provided between the first end face of the shell and the coil fixing seat, and the first channel and the second channel are connected through the first connecting channel. Such a setting can make the first channel and the second channel easy to process, thereby reducing the manufacturing difficulty, and at the same time can reduce the alignment accuracy between the first channel and the second channel during the installation process, so as to facilitate installation.

[0038] The damper mechanism provided by the embodiment of the utility model is described below in conjunction with the accompanying drawings.

[0039] Figure 1 A schematic diagram of a damper mechanism provided for at least one embodiment of the utility model; Figure 2 for Figure 1 A partial enlarged schematic diagram of the damper mechanism in FIG. Figure 3 for Figure 1 Another partial enlarged schematic diagram of the damper mechanism in FIG.

[0040] like Figure 1 As shown, the damper mechanism 01 includes a first sleeve 100, and a coil fixing seat 103 and a solenoid valve control unit 104 located in the first sleeve 100. The first sleeve 100 includes a first opening 101 and an annular wall 102 arranged opposite to the first opening 101. The first sleeve 100 has an internal concave cavity, and the coil fixing seat 103 and the solenoid valve control unit 104 are both located in the internal concave cavity. The coil fixing seat 103 and the annular wall 102 are in contact with each other, and the solenoid valve control unit 104 is located on the side of the coil fixing seat 103 close to the first opening 101, and includes a housing 1041, a valve cover 1042 and a valve armature 1043. The housing 1041 is located on the side of the valve cover 1042 facing the annular wall 102, and the housing 1041 is in contact with and connected to the valve cover 1042. An accommodating chamber 1040 is defined between the housing 1041 and the valve cover 1042 . A valve armature 1043 is disposed in the accommodating chamber 1040 . The valve armature 1043 is configured to reciprocate in the accommodating chamber 1040 along a first direction X, where the first direction X is an axial direction of the first sleeve 100 .

[0041] For example, Figure 1 As shown, the damper mechanism 01 also includes an electromagnetic coil 1060, which is located between the outer wall of the shell 1041 and the inner wall of the first sleeve 100, and the electromagnetic coil 1060 is located between the coil fixing seat 103 and the valve cover 1042 in the first direction X. The electromagnetic coil 1060 is configured to drive the valve armature 1043 to reciprocate along the first direction X in the accommodating chamber 1040.

[0042] like Figure 1As shown, the housing 1041 has a first channel 110 and a first end face 1046 close to the annular wall 102, a first connecting channel 111 is provided between the first end face 1046 and the coil fixing seat 103, the coil fixing seat 103 has a second channel 120, and the first sleeve 100 has a third channel 130. The first channel 110 penetrates the housing 1041 in the first direction X, so that the accommodating cavity 1040 can be communicated with the outside of the housing 1041 through the first channel 110. For example, the first connecting channel 111 can have a variety of design forms according to design requirements (please see the relevant description of the following embodiment), such as providing a groove on the first end face 1046 of the housing 1041, but is not limited thereto. For example, the second channel 120 penetrates the coil fixing seat 103 in the radial direction thereof, the third channel 130 penetrates the side wall of the first sleeve 100, and the second channel 120 is communicated with the third channel 130, so that the first connecting channel 111 is communicated with the outside of the first sleeve 100.

[0043] like Figure 2 As shown, the first end 1101 of the first channel 110 is in communication with the accommodating chamber 1040, the second end 1102 of the first channel 110 is in communication with the first connecting channel 111, the first end 1201 of the second channel 120 is in communication with the first connecting channel 111, the second end 1202 of the second channel 120 is in communication with the first end 1301 of the third channel 130, and the second end 1302 of the third channel 130 is in communication with the outside of the first sleeve 100. Thus, the channel connected in sequence by the first channel 110, the first connecting channel 111, the second channel 120, and the third channel 130 can be used as the exhaust channel 123 of the damper mechanism 01.

[0044] like Figure 2 As shown, the accommodating chamber 1040 can be passed through the exhaust passage 123 (see Figure 1 ) is connected to the outside of the first sleeve 100 to discharge the gas in the accommodating chamber 1040 and the cavity connected to the accommodating chamber 1040, so as to maintain the internal air pressure of the damper mechanism 01 stable and make the uniformity of the circulating medium inside the damper mechanism 01 good. At the same time, the first end 1101 of the first channel 110 and the second end 1202 of the second channel 120 are indirectly connected, that is, the two are connected through the first connecting channel 111. Therefore, when the coil fixing seat 103 is installed with the shell 1041, such a setting can reduce the alignment accuracy between the first end 1101 of the first channel 110 and the second end 1202 of the second channel 120, so that the installation difficulty is reduced. In addition, since the first channel 110 does not need to be directly matched with the second channel 120, the position and structural form of the first channel 110 and the second channel 120 can be flexibly selected according to the manufacturing convenience, so as to reduce the manufacturing difficulty and make it easy to process.

[0045] For example, Figure 1 As shown, the damper mechanism 01 further includes a second sleeve 200 and a valve core assembly chamber 300 located in the second sleeve 200. The second sleeve 200 includes a second opening 202 and a third opening 203 that are oppositely arranged, and the second opening 202 of the second sleeve 200 and a portion close to the second opening 202 extend into the first sleeve 100 through the first opening 101.

[0046] For example, Figure 1 As shown, the first opening 101 may be an opening surrounded by the end of the first sleeve 100 away from the annular wall 102. For example, the planar shape of the annular wall 102 may be annular. For example, the shape of the first opening 101 may be circular, and the planar shape of the annular wall 102 may be a circular ring. For example, the central axis of the annular wall 102 coincides with the central axis L of the housing 1041.

[0047] For example, Figure 1 As shown, the second opening 202 may be an opening surrounded by the end of the second sleeve 200 facing the annular wall 102 of the first sleeve 100 , and the third opening 203 may be an opening surrounded by the end of the second sleeve 200 away from the annular wall 102 of the first sleeve 100 .

[0048] For example, Figure 1 As shown, the inner diameter of the second opening 202 is smaller than the inner diameter of the first opening 101. For example, the second opening 202 of the second sleeve 200 can extend into the barrel cavity between the first opening 101 and the annular wall 102 of the first sleeve 100. For example, a portion of the second sleeve 200 is inserted into the barrel cavity of the first sleeve 100, and another portion of the second sleeve 200 is located outside the barrel cavity of the first sleeve 100. For example, the third opening 203 of the second sleeve 200 and the portion close to the third opening 203 are located outside the first sleeve 100.

[0049] For example, Figure 1 As shown, a portion of the solenoid valve control part 104 close to the annular wall 102 is located inside the first sleeve 100 and outside the second sleeve 200, and a portion of the solenoid valve control part 104 away from the annular wall 102 (for example, the valve cover 1042) is located in the first sleeve 100 and also in the second sleeve 200.

[0050] For example, Figure 1As shown, the valve armature 1043 includes a first internal channel 1030, the first internal channel 1030 penetrates the valve armature 1043 along the first direction X, and the first internal channel 1030 is in communication with the accommodating chamber 1040. For example, in the first direction X, the portions of the accommodating chamber 1040 located on both sides of the valve armature 1043 are in communication through the first internal channel 1030, so that they can be in communication with the outside of the first sleeve 100 through the exhaust channel 123. For example, the valve cover 1042 includes a second internal channel 1045, and the accommodating chamber 1040 is in communication with the valve core assembly chamber 300 through the second internal channel 1045. For example, the valve core assembly chamber 300 is located on a side of the valve cover 1042 away from the accommodating chamber 1040, and the second internal channel 1045 penetrates the valve cover 1042 in the first direction X, so that the gas in the valve core assembly chamber 300 can flow into the accommodating chamber 1040 through the second internal channel 1045, and then be discharged through the exhaust channel 123.

[0051] For example, Figure 1 As shown, the first channel 110 is located on a side of the first connecting channel 111 close to the valve armature 1043 in the first direction X, and the first channel 110 extends along the first direction X, so that the first channel 110 can be arranged at a portion of the housing 1041 close to the coil fixing seat 103, thereby reducing the difficulty of manufacturing the first channel 110, and the second end 1102 (see Figure 2 ) is easily connected to the first connecting channel 111, thereby reducing the difficulty of assembling between the shell 1041 and the coil fixing seat 103.

[0052] For example, Figure 1 As shown, the second channel 120 is located on one side of the first connecting channel 111 close to the third channel 130 in the second direction Y, and both the second channel 120 and the third channel 130 extend along the second direction Y, which is the radial direction of the first sleeve 100. With such an arrangement, the sizes of the second channel 120 and the third channel 130 in their respective extending directions can be made smaller, thereby reducing the difficulty of manufacturing the second channel 120 and the third channel 130, and since the second channel 120 and the third channel 130 extend in the same direction, the difficulty of installing the coil fixing seat 103 and the first sleeve 100 can be reduced, so as to facilitate assembly.

[0053] For example, Figure 1 As shown, the central axis of the first channel 110 coincides with the central axis L of the housing 1041. For example, the central axis L of the housing 1041 can be used as the symmetric central axis of the housing 1041, and the first channel 110 extends along the first direction X and is disposed in the middle of the housing 1041. Thus, the gas in the accommodating chamber 1040 can easily enter the first channel 110 and then be discharged to the outside of the first sleeve 100.

[0054] In some embodiments, reference Figure 2 The housing 1041 may be provided with a plurality of first channels 110 communicating with the accommodating chamber 1040, and the ports of the plurality of first channels 110 are spaced apart on the first end surface 1046 of the housing 1041. For example, the plurality of first channels 110 are arranged in a circle with the center axis L as the center, thereby improving the exhaust efficiency while ensuring the housing 1041 has good structural strength. For example, the number of first channels 110 in the housing 1041 and the inner diameter of each first channel 110 may be set according to actual design requirements, and the embodiments of the present utility model are not limited thereto.

[0055] In some embodiments, reference Figure 2 A plurality of second channels 120 may be provided on the coil fixing seat 103, a plurality of third channels 130 may be provided on the first sleeve 100, and the plurality of second channels 120 and the plurality of third channels 130 are provided in a one-to-one correspondence, thereby further improving the exhaust efficiency. The embodiment of the utility model does not limit the number of the second channels 120 and the third channels 130.

[0056] For example, Figure 2 As shown, in the first direction X, the housing 1041 has a first end face 1046 close to the annular wall 102, and the coil holder 103 has a surface 1110 facing the first end face 1046 of the housing 1041, and a first distance K1 is provided between the first end face 1046 of the housing 1041 and the surface 1110 of the coil holder 103, so as to form a first connecting channel 111. For example, the coil holder 103 has a receiving cavity on one side facing the valve armature 1043, and the end of the housing 1041 away from the valve armature 1043 is located in the receiving cavity, and in the first direction X, the size of the end of the housing 1041 is smaller than the size of the above-mentioned receiving cavity of the coil holder 103, thereby forming the first distance K1. For example, the cavity between the first end surface 1046 of the shell 1041 and the surface 1110 of the coil fixing seat 103 serves as the first connecting channel 111. Therefore, the first connecting channel 111 has a larger capacity space so that the flow rate of the gas flowing in from the first channel 110 can be buffered to a certain extent, so as to protect the device structure.

[0057] For example, Figure 2 As shown, in the first direction X, the first spacing K1 may be 0.8 mm to 1.2 mm, such as 0.9 mm, 1.0 mm or 1.1 mm, which is not limited in the embodiments of the present invention.

[0058] In some embodiments, reference Figure 2At least one of the first end surface 1046 of the housing 1041 and the surface 1110 of the coil fixing seat 103 has a first groove, and the first groove serves as the first connecting channel 111. For example, the first groove extends along the radial direction (i.e., the second direction Y) of the housing 1041, and the first channel 110 and the second channel 120 are respectively connected to the first groove.

[0059] In some embodiments, reference Figure 2 , the first end surface 1046 of the housing 1041 may contact the surface 1110 of the coil fixing seat 103. For example, the first groove may be provided on the first end surface 1046 of the housing 1041, and the first channel 110 is directly connected to the first groove. That is, the first connecting channel 111 and the first channel 110 are both formed on the housing 1041, thereby eliminating the matching step between the first channel 110 and the first connecting channel 111 during installation, thereby simplifying the installation steps.

[0060] In some embodiments, reference Figure 2 , the first groove can also be set on the surface 1110 of the coil fixing seat 103, and the second channel 120 is directly connected to the first groove. In other words, the first connecting channel 111 and the second channel 120 are both formed on the coil fixing seat 103, thereby eliminating the matching step between the second channel 120 and the first connecting channel 111 during installation, thereby simplifying the installation steps.

[0061] For example, Figure 1 As shown, the damper mechanism 01 further includes a valve core assembly 400, which is located in the valve core assembly chamber 300 and is connected to the solenoid valve control unit 104. For example, the solenoid valve control unit 104 further includes a rod body 500 that penetrates the valve armature 1043, and the rod body 500 is configured to transmit the regulating force on the valve armature 1043 to the valve core assembly 400. For example, the damper mechanism 01 further includes a movable valve core 800 and a movable valve stopper 880, and one end of the valve core assembly 400 abuts against the movable valve core 800. For example, the movable valve core 800 has a third internal passage 850. When the rod body 500 moves toward a side away from the movable valve core 800, the distance between the movable valve core 800 and the movable valve stopper 880 increases, so that the third internal passage 850 is communicated with the discharge passage 900 of the second sleeve 200, so that the damping fluid in the valve core assembly chamber 300 can be discharged to the outside of the second sleeve 200 through the third internal passage 850. For example, when the rod body moves toward a side close to the movable valve core 800, the distance between the movable valve core 800 and the movable valve stopper 880 becomes smaller, thereby reducing the flow rate of the damping fluid flowing from the third internal passage 850 to the discharge passage 900.

[0062] For example, Figure 1As shown, a guide sleeve 550 is provided at one end of the accommodating cavity 1040 away from the second sleeve 200, and at least a portion of the rod body 500 close to the annular wall 102 is located in the guide sleeve 550. For example, the guide sleeve 550 can provide a guide for the movement of the rod body 500, for example, it can make it move along the first direction X, so that its movement state is more stable.

[0063] For example, Figure 3 As shown, the accommodating chamber 1040 includes a sub-chamber 1047, and the sub-chamber 1047 is located between the end of the valve armature 1043 away from the valve cover 1042 and the guide sleeve 550. For example, the sub-chamber 1047 is directly connected to the first internal channel 1030, and a second connecting channel 5500 is provided between the surfaces facing each other of the guide sleeve 550 and the housing 1041, and the sub-chamber 1047 is connected to the first channel 110 through the second connecting channel 5500. For example, Figure 1 and Figure 3 As shown, the gas in the first internal channel 1030 can flow into the sub-cavity 1047 , then enter the second connecting channel 5500 , and then be discharged to the outside of the first sleeve 100 .

[0064] For example, in some embodiments of the present invention, the second connecting channel between the guide sleeve and the housing may have different structural forms to adapt to different design requirements.

[0065] In some embodiments, Figure 3 As shown, the second connecting channel 5500 includes a second groove 5502 and a third groove 5503, the second groove 5502 is located on at least one of the outer wall of the guide sleeve 550 and the surface of the housing 1041 facing the outer wall, and the second groove 5502 is communicated with the sub-cavity 1047. For example, the outer wall of the guide sleeve 550 is the side wall away from the rod body 500, the second groove 5502 can be arranged on the outer wall of the guide sleeve 550, and the second groove 5502 extends along the first direction X, thereby being conducive to simplifying the flow path of the airflow, so that the gas in the sub-cavity 1047 can easily flow into the first channel 110.

[0066] In some embodiments, Figure 3 As shown, the third groove 5503 is located on at least one of the surfaces of the guide sleeve 550 and the housing 1041 facing each other in the first direction X, the third groove 5503 is communicated with the second groove 5502, and the third groove 5503 is communicated with the first channel 110. In some examples, the guide sleeve 550 has a second end surface 5551 facing the housing 1041 in the first direction X, and the second end surface 5551 is an annular surface, and the third groove 5503 is arranged on the annular surface, so that the gas in the second groove 5502 can flow into the third groove 5503, and then enter the first channel 110, and then be discharged.

[0067] In some embodiments, Figure 3 As shown, the housing 1041 has a surface 1004 facing the guide sleeve 550 in the first direction, and the second end surface 5551 of the guide sleeve 550 contacts the surface 1004 of the housing 1041. Thus, the housing 1041 can provide a supporting force for the guide sleeve 550 in the first direction X to reduce the risk of the guide sleeve 550 sliding in the first direction X.

[0068] For example, Figure 3 As shown, when the second groove 5502 and the third groove 5503 are both arranged on the guide sleeve 550, the difficulty of processing the housing 1041 can be reduced, and the second groove 5502 and the third groove 5503 can be easily manufactured and the manufacturing accuracy can be easily controlled.

[0069] In some embodiments, reference Figure 3 The second groove 5502 may also be disposed on the surface of the outer wall of the shell 1041 facing the guide sleeve 550, and the third groove 5503 may also be disposed on the surface of the shell 1041 facing the guide sleeve 550 in the first direction X. The embodiment of the utility model does not limit the positions of the second groove 5502 and the third groove 5503.

[0070] Figure 4 A schematic diagram of the partial structure of another damper mechanism provided for at least one embodiment of the utility model.

[0071] For example, Figure 4 As shown, Figure 1 Compared with the damper mechanism 01 in the embodiment, the damper mechanism 02 is different in that the structure of the second connecting channel 5500 is different. For the remaining structures, please refer to the relevant description in the above embodiments and will not be repeated here.

[0072] For example, Figure 4 As shown, at least one of the outer wall of the guide sleeve 550 and the surface of the shell 1041 facing the outer wall has a second groove 5502, and the second groove 5502 is connected to the sub-cavity 1047. For example, the second groove 5502 can be set on the outer wall of the guide sleeve 550, or on the surface of the outer wall of the shell 1041 facing the guide sleeve 550. The embodiment of the utility model is not limited to this. For the arrangement form of the second groove 5502, please refer to the above embodiment. Figure 3 Related instructions.

[0073] For example, Figure 4 As shown, the side wall of the guide sleeve 550 has at least one through hole 5504, and the through hole 5504 is connected to the second groove 5502. For example, when the rod body 500 is located Figure 4In the position shown, one end of the through hole 5504 is communicated with the second groove 5502, and the other end of the through hole 5504 is communicated with the first channel 110. For example, in the first direction X, the through hole 5504 is located on the side wall of the middle part of the guide sleeve 550 away from the valve armature 1043, so as to facilitate the gas to enter the first channel 110 from the through hole 5504. For example, the number of the through holes 5504 in the guide sleeve 550 can be 2 to 5, and the embodiment of the utility model is not limited to this.

[0074] like Figure 4 As shown, by setting a plurality of through holes 5504 on the side wall of the guide sleeve 550, the second end face 5551 of the guide sleeve 550 can have good flatness while meeting the exhaust requirements. When the second end face 5551 is attached to the surface 1004 of the shell 1041, it is conducive to the stable setting of the guide sleeve 550.

[0075] Figure 5 A partial structural schematic diagram of yet another damper mechanism provided for at least one embodiment of the utility model.

[0076] For example, Figure 5 As shown, Figure 1 Compared with the damper mechanism 01 in the embodiment, the damper mechanism 03 is different in that the structure of the second connecting channel 5500 is different. For the remaining structures, please refer to the relevant description in the above embodiments and will not be described again.

[0077] For example, Figure 5 As shown, at least one of the outer wall of the guide sleeve 550 and the surface of the shell 1041 facing the outer wall has a second groove 5502, and the second groove 5502 is connected to the sub-cavity 1047. For example, the second groove 5502 can be set on the outer wall of the guide sleeve 550, or on the surface of the outer wall of the shell 1041 facing the guide sleeve 550. The embodiment of the utility model is not limited to this. For the arrangement form of the second groove 5502, please refer to the above embodiment. Figure 3 Related instructions.

[0078] For example, Figure 5 As shown, the guide sleeve 550 has a portion close to the annular wall 102 (see Figure 1), the shell 1041 has a second end face 5551 facing the second end face 5551, and a second spacing K2 is provided between the second end face 5551 of the guide sleeve 550 and the surface 1004 of the shell 1041, so that the second groove 5502 is connected to the first channel 110. For example, the outer wall of the guide sleeve 550 is tightly fitted with the shell 1041, thereby reducing the risk of the guide sleeve 550 sliding in the first direction X. For example, the second spacing K2 can be 0.8mm to 1.2mm, such as 0.9mm, 1.0mm or 1.1mm, and the embodiments of the utility model are not limited to this. With such a configuration, the size of the guide sleeve 550 in the first direction X can be smaller while meeting the exhaust requirements, which is conducive to simplifying the structure of the guide sleeve 550.

[0079] Figure 6 A partial structural schematic diagram of yet another damper mechanism provided for at least one embodiment of the utility model.

[0080] For example, Figure 6 As shown, Figure 1 Compared with the damper mechanism 01 in the embodiment, the damper mechanism 04 is different in that the structure of the first channel 110 is different. For the remaining structures, please refer to the relevant description in the above embodiments and will not be described in detail here.

[0081] For example, Figure 6 As shown, the accommodating chamber 1040 includes a sub-chamber 1047, and the sub-chamber 1047 is located away from the valve cover 1042 (see Figure 1 ) and the housing 1041, the first channel 110 is directly connected to the sub-cavity 1047. For example, the first channel 110 extends along the first direction X, the first end 1101 of the first channel 110 is connected to the sub-cavity 1047, and the second end 1102 of the first channel 110 is connected to the first connecting channel 111, so that the gas in the sub-cavity 1047 can flow into the first connecting channel 111 through the first channel 110, which is conducive to improving the exhaust efficiency and making the housing 1041 easy to manufacture.

[0082] For example, Figure 6 As shown, in the second direction Y, the first channel 110 is located between the central axis L of the housing 1041 and the second channel 120, so that the distance between the first channel 110 and the second channel 120 can be reduced, so that the gas can easily enter the second channel 120 from the first channel 110 through the first connecting channel 111, so as to improve the exhaust efficiency. In some embodiments, the first channel 110 can also be set to multiple, for example, 2, and the embodiments of the utility model are not limited to this.

[0083] For example, Figure 1As shown, a first sealing ring 710 is provided between the outer side wall of the housing 1041 parallel to the first direction X and the coil fixing seat 103, and the first sealing ring 710 surrounds the central axis L of the housing 1041. For example, the outer side wall of the housing 1041 parallel to the first direction X may have a first receiving groove, and the first sealing ring 710 may be disposed in the first receiving groove, but is not limited thereto. For example, in some examples, the first receiving groove may also be disposed on the inner wall of the coil fixing seat 103, and the embodiments of the present utility model are not limited thereto.

[0084] For example, Figure 1 As shown, the first sealing ring 710 can enhance the sealing performance between the housing 1041 and the coil fixing seat 103, thereby reducing the risk of the damping fluid flowing out of the first connecting channel 111 leaking into devices such as the electromagnetic coil 1060.

[0085] For example, Figure 1 As shown, a second sealing ring 720 and a third sealing ring 730 are provided between the outer wall of the coil fixing seat 103 facing the first sleeve 100 and the first sleeve 100, and the second sealing ring 720 and the third sealing ring 730 both surround the central axis L of the housing 1041, and the second sealing ring 720 and the third sealing ring 730 are respectively located on both sides of the second channel 120 in the first direction X. For example, Figure 1 As shown, the outer side wall of the coil fixing seat 103 facing the first sleeve 100 may be provided with a second receiving groove and a third receiving groove, the second sealing ring 720 may be provided in the second receiving groove, and the third sealing ring 730 may be provided in the third receiving groove. For example, in some examples, the second receiving groove and the third receiving groove may also be provided on the inner wall of the first sleeve 100, and the embodiment of the utility model is not limited to this.

[0086] For example, Figure 1 As shown, the second sealing ring 720 and the third sealing ring 730 can enhance the sealing performance between the coil fixing seat 103 and the first sleeve 100 to reduce the risk of the damping fluid flowing out of the second channel 120 leaking into devices such as the electromagnetic coil 1060, thereby enabling the damper mechanism 01 to have good operating performance.

[0087] For example, Figure 2 As shown, the channel (i.e. Figure 1The exhaust channel 123 in the first embodiment also includes a retraction portion 121, and any one of the flow cross-sectional area of ​​the first channel 110, the flow cross-sectional area of ​​the first connecting channel 111, the flow cross-sectional area of ​​the second channel 120, and the flow cross-sectional area of ​​the third channel 130 is larger than the flow cross-sectional area of ​​the retraction portion 121. For example, the retraction portion 121 can play a throttling role to control the excessive damping fluid and excessive gas from being discharged through the exhaust channel 123, thereby reducing the risk of a sudden pressure drop in the accommodating chamber 1040.

[0088] For example, Figure 2 As shown, the retracted portion 121 may be located between the first connecting channel 111 and the second channel 120, one end of the retracted portion 121 is communicated with the first connecting channel 111, and the other end of the retracted portion 121 is communicated with the first end 1201 of the second channel 120. For example, when more damping fluid flows into the first connecting channel 111, the retracted portion 121 has a smaller flow cross-sectional area, thereby preventing excessive damping fluid from passing through the exhaust channel 123 (see Figure 1 ) is discharged so that the pressure in the accommodating chamber 1040 remains stable.

[0089] In some embodiments, reference Figure 2 The retracted portion 121 may also be disposed between the second channel 120 and the third channel 130 , and the retracted portion 121 may be disposed at a position close to the second end 1202 of the second channel 120 , so as to simplify the manufacturing process.

[0090] For example, Figure 2 As shown, the inner diameter of the retraction portion 121 can be 1 / 7 to 1 / 4 of the inner diameter of any one of the first channel 110, the second channel 120 and the third channel 130, such as 1 / 6 to 1 / 4, 1 / 5 to 1 / 4 or 1 / 4 to 1 / 3, but is not limited thereto. For example, the inner diameter of the retraction portion 121 is 0.25 mm to 0.35 mm, such as 0.25 mm, 0.30 mm or 0.35 mm, and the embodiments of the present utility model do not limit this. In some embodiments, multiple retraction portions 121, such as 2, can also be set at different positions of the exhaust channel 123 to enhance the reliability of the damper mechanism. The embodiments of the present utility model do not limit the number of retraction portions 121.

[0091] Such an arrangement can ensure that the flow rates of gas and damping fluid discharged from the exhaust channel are within a reasonable range while meeting the exhaust requirements, thereby ensuring that the pressure in the accommodating chamber is within a suitable range, thereby reducing the risk of a sudden pressure drop.

[0092] At least one embodiment of the present invention further provides a shock absorber, which includes the damper mechanism in any of the above embodiments. Therefore, the technical effect of the above damper mechanism can also be embodied in the shock absorber, which will not be described in detail here.

[0093] There are a few points to note:

[0094] (1) The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the conventional designs.

[0095] (2) In the absence of conflict, features in the same embodiment or in different embodiments of the present invention may be combined with each other.

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

Claims

1. A damper mechanism, It is characterized in that The invention comprises a first sleeve, a coil fixing seat and an electromagnetic valve control part located in the first sleeve, the first sleeve comprises a first opening and an annular wall arranged opposite to the first opening, the electromagnetic valve control part is located on a side of the coil fixing seat close to the first opening, and comprises a shell, a valve cover and a valve armature, the shell is located on a side of the valve cover facing the annular wall, an accommodating cavity is provided between the shell and the valve cover, the valve armature is arranged in the accommodating cavity and is configured to reciprocate in the accommodating cavity along a first direction, the first direction is the axial direction of the first sleeve, The shell has a first channel, a first connecting channel is provided between the first end surface of the shell close to the annular wall and the coil fixing seat, the coil fixing seat has a second channel, and the first sleeve has a third channel. The first end of the first channel is connected to the accommodating chamber, the second end of the first channel is connected to the first connecting channel, the first end of the second channel is connected to the first connecting channel, the second end of the second channel is connected to the first end of the third channel, and the second end of the third channel is connected to the outside of the first sleeve.

2. The damper mechanism according to claim 1, It is characterized in that Also includes: A second sleeve, comprising a second opening and a third opening arranged opposite to each other, wherein the second opening of the second sleeve and a portion close to the second opening extend into the first sleeve through the first opening; as well as a valve core assembly chamber, located in the second sleeve; Wherein, the valve armature includes a first internal channel, the first internal channel passes through the valve armature along the first direction, the first internal channel is connected to the accommodating chamber, and the valve cover includes a second internal channel, the accommodating chamber is connected to the valve core assembly chamber through the second internal channel.

3. The damper mechanism according to claim 1, It is characterized in that The first channel is located on a side of the first connecting channel close to the valve armature in the first direction, and the second channel is located on a side of the first connecting channel close to the third channel in the second direction. The first channel extends along the first direction, and the second channel and the third channel both extend along the second direction, and the second direction is a radial direction of the first sleeve.

4. The damper mechanism according to any one of claims 1 to 3, It is characterized in that In the first direction, there is a first distance between the first end surface of the housing and a surface of the coil fixing seat facing the first end surface to form the first connecting channel.

5. The damper mechanism according to any one of claims 1 to 3, It is characterized in that At least one of the first end surface of the housing and a surface of the coil fixing seat facing the first end surface has a first groove, and the first groove serves as the first connecting channel.

6. The damper mechanism according to claim 5, It is characterized in that The first end surface of the housing has the first groove, and the first end surface is in contact with a surface of the coil fixing seat facing the first end surface.

7. The damper mechanism according to claim 2, It is characterized in that The invention also includes a valve core assembly, which is located in the valve core assembly chamber and connected to the solenoid valve control unit. The solenoid valve control unit also includes a rod body penetrating the valve armature, and the rod body is configured to transmit the regulating force on the valve armature to the valve core assembly. A guide sleeve is provided at one end of the accommodating chamber away from the second sleeve, and at least a portion of the rod body close to the annular wall is located in the guide sleeve. Wherein, the accommodating cavity comprises a sub-cavity, and the sub-cavity is located between the end of the valve armature away from the valve cover and the guide sleeve, A second connecting channel is provided between the surfaces of the guide sleeve and the shell that face each other, and the sub-cavity is connected to the first channel through the second connecting channel.

8. The damper mechanism according to claim 7, It is characterized in that The second connecting channel includes a second groove and a third groove, the second groove is located on at least one of the outer wall of the guide sleeve and the surface of the shell facing the outer wall, and the second groove is communicated with the sub-cavity. The third groove is located on at least one of the surfaces of the guide sleeve and the housing facing each other in the first direction, the third groove is communicated with the second groove, and the third groove is communicated with the first channel.

9. The damper mechanism according to claim 7, It is characterized in that At least one of the outer wall of the guide sleeve and the surface of the housing facing the outer wall has a second groove, and the second groove is communicated with the sub-cavity. The side wall of the guide sleeve has at least one through hole, and the through hole is communicated with the second groove.

10. The damper mechanism according to claim 8 or 9, It is characterized in that In the first direction, a surface of the guide sleeve facing the housing in the first direction is in contact with the housing.

11. The damper mechanism according to claim 7, It is characterized in that At least one of the outer wall of the guide sleeve and the surface of the housing facing the outer wall has a second groove, and the second groove is communicated with the sub-cavity. A second distance is provided between a second end surface of the guide sleeve close to the annular wall and a surface of the housing facing the second end surface, so that the second groove is communicated with the first channel.

12. The damper mechanism according to any one of claims 1 to 3, It is characterized in that The central axis of the first channel coincides with the central axis of the housing.

13. The damper mechanism according to claim 3, It is characterized in that A guide sleeve is provided at one end of the accommodating chamber away from the second sleeve, at least a portion of the rod body close to the annular wall is located in the guide sleeve, the accommodating chamber includes a sub-cavity, the sub-cavity is located between the end of the valve armature away from the valve cover and the guide sleeve, and the first channel is directly connected to the sub-cavity.

14. The damper mechanism according to claim 13, It is characterized in that In the second direction, the first passage is located between a central axis of the housing and the second passage.

15. The damper mechanism according to any one of claims 1 to 3, It is characterized in that A first sealing ring is provided between the outer side wall of the housing away from the valve armature and the coil fixing seat, and a second sealing ring and a third sealing ring are provided between the outer side wall of the coil fixing seat and the first sleeve. The first sealing ring, the second sealing ring and the third sealing ring all surround the central axis of the housing, and the second sealing ring and the third sealing ring are respectively located on both sides of the second channel in the first direction.

16. The damper mechanism according to any one of claims 1 to 3, It is characterized in that The channel connected in sequence by the first channel, the first connecting channel, the second channel and the third channel further includes a retraction portion, Any one of the flow cross-sectional area of ​​the first channel, the flow cross-sectional area of ​​the first connecting channel, the flow cross-sectional area of ​​the second channel, and the flow cross-sectional area of ​​the third channel is larger than the flow cross-sectional area of ​​the retracted portion.

17. The damper mechanism according to claim 16, It is characterized in that The inner diameter of the retracted portion is 0.25 mm to 0.35 mm.

18. The damper mechanism according to claim 16, It is characterized in that The retracted portion is located between the first connecting channel and the second channel, one end of the retracted portion is communicated with the first connecting channel, and the other end of the retracted portion is communicated with the first end of the second channel.

19. The damper mechanism according to any one of claims 1 to 3, It is characterized in that The shell is provided with a plurality of the first channels communicating with the accommodating cavity, and ports of the plurality of the first channels are distributed at intervals on the first end surface of the shell.

20. A shock absorber, It is characterized in that Comprising a damper mechanism according to any one of claims 1 to 19.

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