Electromagnetic shock absorber and vehicle

Abstract

The utility model discloses an electromagnetic shock absorber and a vehicle. The electromagnetic shock absorber comprises a stator movable rod, a rotor movable rod and a rotor movable rod, the rotor shell is arranged outside the stator movable rod in a sleeving manner, and the rotor shell and the stator movable rod can move relative to each other; and the guide assemblies are arranged between the rotor shell and the stator movable rod, the rotor shell and the stator movable rod are in guide fit through the guide assemblies, the number of the guide assemblies is multiple, and the guide assemblies are distributed in the circumferential direction of the stator movable rod at intervals. According to the electromagnetic shock absorber, the multiple sets of guide assemblies are arranged in the circumferential direction of the stator movable rod at intervals, the rigidity of the electromagnetic shock absorber can be enhanced conveniently, and therefore the electromagnetic shock absorber can bear larger lateral force, and it can be guaranteed that the electromagnetic shock absorber always keeps linear reciprocating motion especially when the road condition is severe; the output force of the electromagnetic shock absorber can be improved, and the requirement for shock absorption acting force of a vehicle is met.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to an electromagnetic shock absorber and a vehicle. Background Art

[0002] In the related art, the electromagnetic shock absorber cannot withstand large lateral forces during operation, which causes the electromagnetic shock absorber to tilt and cannot always maintain linear reciprocating motion, reducing the output force of the electromagnetic shock absorber and failing to meet the vehicle's shock absorbing force requirements. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an electromagnetic shock absorber, which is convenient for enhancing the stiffness of the electromagnetic shock absorber, so that the electromagnetic shock absorber can withstand greater lateral force, which is conducive to meeting the shock absorption force requirements of the vehicle.

[0004] According to the electromagnetic vibration absorber of the embodiment of the utility model, it includes: a stator movable rod; a movable housing, the movable housing is sleeved outside the stator movable rod, and the movable housing and the stator movable rod can move relative to each other; a guide assembly, the guide assembly is arranged between the movable housing and the stator movable rod, the movable housing and the stator movable rod are guided and matched by the guide assembly, and the guide assemblies are multiple groups and are distributed at intervals in the circumferential direction of the stator movable rod.

[0005] According to the electromagnetic shock absorber of the embodiment of the utility model, by arranging a plurality of guide components at intervals in the circumferential direction of the stator movable rod, the stiffness of the electromagnetic shock absorber is enhanced, so that the electromagnetic shock absorber can withstand greater lateral forces, especially when the road conditions are bad, the electromagnetic shock absorber can withstand greater lateral forces, thereby ensuring that the electromagnetic shock absorber always maintains linear reciprocating motion, which is beneficial to improving the output force of the electromagnetic shock absorber and meeting the vehicle's damping force requirements.

[0006] According to the electromagnetic vibration absorber of some embodiments of the utility model, the guide assembly includes a linear bearing group and a guide rod, one of the linear bearing group and the guide rod is arranged on the stator movable rod and the other is arranged on the mover housing, and at least a portion of the guide rod is slidably installed on the linear bearing group.

[0007] According to the electromagnetic vibration absorber of some embodiments of the utility model, the outer peripheral wall of the stator movable rod is provided with a mounting groove, the linear bearing group is installed in the mounting groove, and the guide rod is arranged on the inner peripheral wall of the mover housing.

[0008] According to the electromagnetic vibration absorber of some embodiments of the present utility model, the linear bearing group is provided with an opening, and in the radial direction of the linear bearing group, the opening is open toward the guide rod.

[0009] According to the electromagnetic vibration absorber of some embodiments of the utility model, a winding coil and a permanent magnet group are further provided between the stator movable rod and the mover housing, and one of the stator movable rod and the mover housing is provided with the winding coil and the other is provided with the permanent magnet group.

[0010] According to the electromagnetic vibration absorber of some embodiments of the utility model, the outer peripheral wall of the stator movable rod is provided with an annular groove, the winding coil is wound in the annular groove, and the permanent magnet group includes a plurality of sub-permanent magnets distributed and spaced apart in the circumferential direction of the mover housing, and the sub-permanent magnets are located between two adjacent guide rods.

[0011] According to the electromagnetic vibration absorber of some embodiments of the present invention, the guide rod includes a rod body and a spherical protrusion, the rod body is connected to the inner circumferential wall of the mover housing, and the spherical protrusion is connected to the rod body and extends into the linear bearing group.

[0012] According to the electromagnetic vibration absorber of some embodiments of the present utility model, the linear bearing group includes a plurality of open linear bearings, and the plurality of open linear bearings are spaced apart and distributed in the axial direction of the stator movable rod.

[0013] According to the electromagnetic vibration absorber of some embodiments of the present invention, the guide components are provided in three groups, and the distance between any two adjacent groups of the three groups of guide components is the same.

[0014] The utility model also provides a vehicle.

[0015] A vehicle according to an embodiment of the utility model comprises the electromagnetic shock absorber described in any one of the above embodiments.

[0016] The advantages of the vehicle and the above-mentioned electromagnetic shock absorber over the prior art are the same and will not be described in detail here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of an electromagnetic vibration absorber according to an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 An axial cross-sectional view of the electromagnetic vibration absorber shown in ;

[0021] Figure 3 yes Figure 2 A partial enlarged view of the matching part of the guide rod and the linear bearing group shown in;

[0022] Figure 4 yes Figure 1 A radial cross-sectional view of the mover housing and the stator movable rod of the electromagnetic damper shown in ;

[0023] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0024] Figure 6 is a schematic diagram of a vehicle according to an embodiment of the utility model.

[0025] Reference numerals

[0026] Electromagnetic vibration absorber 100,

[0027] Stator movable rod 10, mounting slot 11, open mouth 111,

[0028] The mover housing 20,

[0029] Guide assembly 30, linear bearing assembly 31, open linear bearing 311, opening 312,

[0030] Guide rod 32, rod body 321, spherical protrusion 322,

[0031] Winding coil 41, permanent magnet group 42,

[0032] Shock absorber tower top 51, dust cover 52, spring upper base 53, outer protective cover 54,

[0033] Connecting flange 55, first fixing bolt 56, second fixing bolt 57,

[0034] Coil spring 60,

[0035] Spring lower base 71, lower jump limit buffer block 72, position sensor grating 73, position sensor 74,

[0036] Upward jump limit shock absorbing block 75, sensor mounting base 76, shock absorber bracket 77, connecting bolt 78. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0039] Reference below Figure 1-Figure 6 An electromagnetic vibration absorber 100 according to an embodiment of the present invention is described.

[0040] like Figure 2 As shown, the electromagnetic vibration absorber 100 according to the embodiment of the utility model includes: a stator movable rod 10, a mover housing 20 and a guide assembly 30.

[0041] Specifically, the mover housing 20 is sleeved outside the stator movable rod 10, and the mover housing 20 and the stator movable rod 10 can move relative to each other. The guide assembly 30 is arranged between the mover housing 20 and the stator movable rod 10. The mover housing 20 and the stator movable rod 10 are guided and matched by the guide assembly 30. The guide assembly 30 is a plurality of groups and is spaced apart and distributed in the circumferential direction of the stator movable rod 10.

[0042] In this way, the stiffness of the electromagnetic shock absorber 100 can be enhanced, so that the electromagnetic shock absorber 100 can withstand greater lateral forces, especially when the road conditions are bad, the electromagnetic shock absorber 100 can withstand greater lateral forces, thereby ensuring that the electromagnetic shock absorber 100 always maintains linear reciprocating motion, which is beneficial to improving the output force of the electromagnetic shock absorber 100 and meeting the shock absorbing force requirements of the vehicle 1000.

[0043] For example Figure 2 As shown, the electromagnetic vibration absorber 100 includes a stator movable rod 10 , a mover housing 20 and a guide assembly 30 .

[0044] Specifically, Figure 2As shown, the mover housing 20 is sleeved on the stator movable rod 10, and the stator movable rod 10 and the mover housing 20 can move relative to each other in the axial direction, wherein a winding coil 41 and a permanent magnet group 42 are also provided between the stator movable rod 10 and the mover housing 20, one of the outer circumferential wall of the stator movable rod 10 and the inner circumferential wall of the mover housing 20 is provided with the winding coil 41 and the other is provided with the permanent magnet group 42, for example, the winding coil 41 is wound around the outer circumferential wall of the stator movable rod 10, and the permanent magnet group 42 is installed on the inner circumferential wall of the mover housing 20, the winding coil 41 and the permanent magnet group 42 are arranged opposite to each other in the radial direction of the stator movable rod 10, and there is a uniform fitting gap between the winding coil 41 and the permanent magnet group 42.

[0045] It should be noted that the electromagnetic shock absorber 100 can be applied to a variety of equipment that requires vibration reduction. For example, the electromagnetic shock absorber 100 can be applied to the active suspension system of the vehicle 1000. When the electromagnetic shock absorber 100 is applied to the vehicle 1000, the axial upper end of the stator active rod 10 is connected to the vehicle body, the axial lower end of the mover housing 20 is connected to the wheel, and the winding coil 41 generates an electromagnetic field after being energized. After being energized, the magnetic field formed by the winding coil 41 interacts with the magnetic field of the permanent magnet group 42 to generate an action force and a reaction force, that is, the thrust of the shock absorber. The magnetic field force gives the mover housing 20 an approximate up and down direction (such as Figure 1 The force acting on the movable housing 20 and the stator movable rod 10 is applied to enable the movable housing 20 and the stator movable rod 10 to perform linear reciprocating motion along the axial direction.

[0046] It is worth noting that the direction of the magnetic field is radial with the interface of the winding coil 41 as the origin, the magnitude of the magnetic field can be controlled by the magnitude of the input current, and the positive and negative directions of the magnetic field can be controlled by adjusting the positive and negative current.

[0047] Therefore, the vibration reduction and buffering effect on the wheel can be achieved through the relative movement of the mover housing 20 and the stator movable rod 10 in the axial direction, so as to meet the vibration reduction force requirement of the vehicle 1000.

[0048] It should be noted that the electromagnetic shock absorber 100 of the vehicle 1000 cannot withstand a large lateral force (a force whose direction intersects the axial direction) during operation. Especially when the road conditions are bad, the electromagnetic shock absorber 100 cannot withstand a larger lateral force, which causes the electromagnetic shock absorber 100 to tilt and cannot always maintain a linear reciprocating motion along the axial direction, thereby reducing the output force of the electromagnetic shock absorber 100 and failing to meet the shock absorbing force requirements of the vehicle 1000.

[0049] In the related art, in order to enable the electromagnetic shock absorber 100 to withstand a large lateral force, the diameter of the stator movable rod 10 is usually made very large to improve the stiffness of the electromagnetic shock absorber 100, so that the electromagnetic shock absorber 100 can withstand the lateral force during operation. However, such a setting will cause the stator movable rod 10 to be heavier, that is, the weight of the electromagnetic shock absorber 100 is increased, which is not conducive to the lightweight design of the electromagnetic shock absorber 100, and the stator movable rod 10 with a larger diameter will occupy too much internal space of the mover housing 20, resulting in a significant reduction in the arrangement space of the winding coil 41 and the permanent magnet group 42, that is, the number of stator windings and permanent magnet groups 42 is reduced, thereby reducing the output force of the electromagnetic shock absorber 100, resulting in it being unable to meet the vibration reduction force requirements of the vehicle 1000.

[0050] Therefore, in the present invention, multiple sets of guide components 30 are arranged between the movable housing 20 and the stator movable rod 10, and the movable housing 20 and the stator movable rod 10 are guided and matched by the multiple sets of guide components 30, and the multiple sets of guide components 30 are spaced apart and distributed in the circumferential direction of the stator movable rod 10.

[0051] In this way, by setting the guide assembly 30, the mover housing 20 and the stator movable rod 10 can be guided and matched by the guide assembly 30 to enhance the stability of the relative movement of the stator movable rod 10 and the mover housing 20, and multiple groups of guide assemblies 30 are spaced and distributed in the circumferential direction of the stator movable rod 10, so that the electromagnetic shock absorber 100 can have stronger rigidity and better lateral stability, so that the electromagnetic shock absorber 100 can withstand greater lateral force. In this way, there is no need to increase the diameter of the stator movable rod 10, which can avoid the stator movable rod 10 occupying too much space in the mover housing 20, and can ensure that the winding coil 41 and the permanent magnet group 42 have sufficient layout space, which is beneficial to improve the output force of the electromagnetic shock absorber 100 so that it can meet the vibration reduction force requirements of the vehicle 1000.

[0052] According to the electromagnetic shock absorber 100 of the embodiment of the utility model, by arranging a plurality of guide assemblies 30 spaced apart in the circumferential direction of the stator movable rod 10, the stiffness of the electromagnetic shock absorber 100 is enhanced, so that the electromagnetic shock absorber 100 can withstand a greater lateral force, especially when the road condition is bad, the electromagnetic shock absorber 100 can withstand a greater lateral force, thereby ensuring that the electromagnetic shock absorber 100 always maintains a linear reciprocating motion, which is beneficial to improving the output force of the electromagnetic shock absorber 100 and meeting the vibration reduction force requirements of the vehicle 1000.

[0053] In some embodiments, Figure 2 As shown, the guide assembly 30 includes a linear bearing group 31 and a guide rod 32, one of which is arranged on the stator movable rod 10 and the other is arranged on the movable housing 20, and at least a portion of the guide rod 32 is slidably mounted on the linear bearing group 31.

[0054] For example, the stator movable rod 10 is provided with a linear bearing group 31, and the movable housing 20 is provided with a guide rod 32, or the stator movable rod 10 is provided with a guide rod 32, and the movable housing 20 is provided with a linear bearing group 31, wherein at least a portion of the guide rod 32 is slidably matched with the linear bearing group 31, and optionally, the axial direction of the guide rod 32 is parallel to the axial direction of the stator movable rod 10, so that the guide rod 32 and the linear bearing group 31 can slide relative to each other, so as to play a guiding role when the stator movable rod 10 and the movable housing 20 slide relative to each other along the axial direction.

[0055] In some embodiments, Figure 3-Figure 5 As shown, the outer peripheral wall of the stator movable rod 10 is provided with a mounting groove 11 , the linear bearing group 31 is installed in the mounting groove 11 , and the guide rod 32 is arranged on the inner peripheral wall of the mover housing 20 .

[0056] Therefore, by setting the mounting groove 11, the linear bearing group 31 can be embedded in the mounting groove 11, thereby enhancing the structural stability of the linear bearing group 31 and making the linear bearing group 31 not occupy the space between the stator movable rod 10 and the mover housing 20, thereby ensuring that the winding coil 41 and the permanent magnet group 42 have sufficient layout space, which is beneficial to improving the output force of the electromagnetic shock absorber 100, so that it can meet the shock absorbing force requirements of the vehicle 1000.

[0057] Optionally, the mounting groove 11 is recessed radially inwardly along the stator movable rod 10, and the mounting groove 11 has an open opening 111 open radially outwardly toward the stator movable rod 10, so that the guide rod 32 can directly cooperate with the linear bearing group 31, thereby reducing the difficulty of cooperation between the two.

[0058] The linear bearing group 31 can be welded to the inner wall of the mounting groove 11, or the linear bearing group 31 can be snapped into the mounting groove 11. Of course, the linear bearing group 31 can also be fixed in the mounting groove 11 by other connection methods, which are not limited here.

[0059] In some embodiments, Figure 4 and Figure 5 As shown, the linear bearing assembly 31 is provided with an opening 312 , and in the radial direction of the linear bearing assembly 31 , the opening 312 is open toward the guide rod 32 .

[0060] Thus, at least a portion of the guide rod 32 can extend into the linear bearing group 31 along the opening 312, that is, the matching direction of the guide rod 32 and the linear bearing group 31 is the radial direction of the linear bearing group 31, that is, the radial direction of the stator movable rod 10, thereby facilitating the enhancement of the stiffness of the stator movable rod 10 in the radial direction of the stator movable rod 10, so that the electromagnetic shock absorber 100 can withstand a larger lateral force to meet the shock absorbing force requirements of the vehicle 1000.

[0061] In some embodiments, Figure 2 As shown, a winding coil 41 and a permanent magnet group 42 are further provided between the stator movable rod 10 and the mover housing 20 , and one of the stator movable rod 10 and the mover housing 20 is provided with the winding coil 41 and the other is provided with the permanent magnet group 42 .

[0062] Therefore, the magnetic field formed by the winding coil 41 after power is turned on and the magnetic field of the permanent magnet group 42 can interact to generate an action force and a reaction force, that is, the thrust of the shock absorber. The magnetic field force gives the mover housing 20 an approximate up and down force, so that the mover housing 20 and the stator movable rod 10 can reciprocate in a straight line in the axial direction.

[0063] For example, the stator movable rod 10 is provided with a winding coil 41, and the movable housing 20 is provided with a permanent magnet group 42, or the stator movable rod 10 is provided with a permanent magnet group 42, and the movable housing 20 is provided with a winding coil 41, wherein in the radial direction of the electromagnetic shock absorber 100, there is a uniform fitting gap between the winding coil 41 and the permanent magnet group 42.

[0064] In actual use, the winding coil 41 generates an electromagnetic field after being energized. After being energized, the magnetic field formed by the winding coil 41 interacts with the magnetic field of the permanent magnet group 42 to generate an action force and a reaction force, that is, the thrust of the shock absorber. The magnetic field force gives the mover housing 20 an approximate up and down force, so that the mover housing 20 and the stator movable rod 10 can reciprocate in a straight line in the axial direction.

[0065] It is worth noting that the direction of the magnetic field is radial with the interface of the winding coil 41 as the origin, the magnitude of the magnetic field can be controlled by the magnitude of the input current, and the positive and negative directions of the magnetic field can be controlled by adjusting the positive and negative current.

[0066] Exemplarily, the outer peripheral wall of the stator movable rod 10 is provided with an annular groove (not shown in the figure), the winding coil 41 is wound in the annular groove, and in the circumferential direction of the movable housing 20, the permanent magnet group 42 includes a plurality of sub-permanent magnets distributed and spaced apart along the circumferential direction, and the sub-permanent magnets are located between two adjacent guide rods 32.

[0067] Therefore, by setting an annular groove so that the winding coil 41 can be wound in the annular groove, the space occupied by the winding coil 41 between the stator movable rod 10 and the mover housing 20 can be reduced, which is conducive to the miniaturization design of the electromagnetic shock absorber 100 and to increasing the winding length of the winding coil 41, thereby providing a greater magnetic field output force.

[0068] Optionally, the annular groove can also be used for installing silicon steel sheets.

[0069] Furthermore, by configuring the permanent magnet group 42 to include a plurality of sub-permanent magnets that are circumferentially spaced apart, so that the sub-permanent magnets can be sandwiched between two adjacent guide rods 32, interference between the permanent magnet group 42 and the guide rods 32 can be avoided, thereby reducing the difficulty of arranging the permanent magnet group 42. Furthermore, the arrangement of the permanent magnet group 42 can make full use of the space between two adjacent guide rods 32, thereby improving space utilization and achieving a miniaturized design of the electromagnetic shock absorber 100.

[0070] In some embodiments, Figure 5 As shown, the guide rod 32 includes a rod body 321 and a spherical protrusion 322 . The rod body 321 is connected to the inner circumferential wall of the mover housing 20 , and the spherical protrusion 322 is connected to the rod body 321 and extends into the linear bearing assembly 31 .

[0071] Therefore, by providing the spherical protrusion 322 , the contact area between the guide rod 32 and the linear bearing assembly 31 can be enhanced by utilizing the spherical protrusion 322 , so that the guide rod 32 can better slide with the linear bearing assembly 31 to enhance the matching stability between the two.

[0072] In some embodiments, Figure 2 and Figure 3 As shown, the linear bearing group 31 includes a plurality of open linear bearings 311 , and the plurality of open linear bearings 311 are spaced apart and distributed in the axial direction of the stator movable rod 10 .

[0073] Therefore, by setting up a plurality of open linear bearings 311, the matching stability between the linear bearing group 31 and the guide rod 32 is enhanced, and the plurality of open linear bearings 311 are spaced apart in the axial direction of the stator movable rod 10, so that when the electromagnetic shock absorber 100 is subjected to lateral force, the plurality of open linear bearings 311 can be used to disperse the lateral force, thereby reducing the influence of the lateral force on the electromagnetic shock absorber 100.

[0074] It should be noted that the specific number of open linear bearings 311 of the multiple linear bearing groups 31 can be the same or different, and the specific number of open linear bearings 311 of each linear bearing group 31 can be set according to the specific length size of the electromagnetic vibration absorber 100.

[0075] In some embodiments, Figure 4 As shown, there are three groups of guide assemblies 30, and the distance between any two adjacent groups of guide assemblies 30 in the three groups of guide assemblies 30 is the same.

[0076] Therefore, by arranging three groups of guide assemblies 30 on the circumference of the stator movable rod 10, the distribution direction between the three groups of guide assemblies 30 can meet the distribution law of the three vertices of the triangle, that is, the three groups of guide assemblies 30 are evenly distributed in a triangle. In this way, it is convenient to enhance the stiffness of the stator movable rod 10, so that the electromagnetic shock absorber 100 can withstand a larger lateral force to meet the shock absorbing force requirements of the vehicle 1000.

[0077] Of course, the above-mentioned uniformly distributed triangular arrangement is only a preferred embodiment. In actual arrangement, the guide components 30 can also be provided in four or five groups, etc., and the spacing between any two adjacent guide components 30 can be the same or different, which is not limited here.

[0078] Combine the following Figure 1-Figure 5 A specific embodiment of the electromagnetic shock absorber 100 of the utility model embodiment is described as being applied to an active suspension system of a vehicle 1000:

[0079] The electromagnetic absorber 100 is electrically connected to an ECU (Electronic Control Unit) of a vehicle 1000, and Figure 1 As shown, the upper end of the electromagnetic shock absorber 100 is provided with a first fixing bolt 56, and the upper end of the electromagnetic shock absorber 100 is connected to the vehicle frame or body as a whole through three first fixing bolts 56, and the lower end of the electromagnetic shock absorber 100 is connected to the transmission shaft of the wheel.

[0080] Specifically, Figure 2 As shown, the electromagnetic shock absorber 100 includes a stator movable rod 10, a mover housing 20, a guide assembly 30, a winding coil 41, a permanent magnet group 42, a shock absorber tower top 51, a dust cover 52, a spring upper base 53, an outer protective cover 54, a connecting flange 55, a coil spring 60, a spring lower base 71, a downward jump limit shock absorber block 72, a position sensor grating 73, a position sensor 74, an upward jump limit shock absorber block 75, a sensor mounting base 76, and a shock absorber bracket 77.

[0081] Specifically, Figure 2 As shown, the outer protective cover 54 is connected to the movable housing 20 and is sleeved on the outside of the movable housing 20. The movable housing 20 is sleeved on the lower half of the stator movable rod 10. The upper half of the stator movable rod 10 extends out of the movable housing 20 to be connected to the shock absorber tower top 51, and a connecting flange 55 is sleeved on the upper end of the stator movable rod 10. The connecting flange 55 and the upper end of the stator movable rod 10 are press-fitted together by interference fit and are connected to the shock absorber tower top 51, so as to enhance the connection stability between the stator movable rod 10 and the shock absorber tower top 51.

[0082] Among them, the inner wall of the mover housing 20 is attached with multiple layers of evenly arranged annular permanent magnet groups 42. At the same time, three longitudinal guide rods 32 are evenly welded on the inner wall of the mover housing 20. The guide rods 32 and the permanent magnet groups 42 are evenly spaced on the inner wall of the mover housing 20. The stator movable rod 10 has three mounting grooves 11 in the circumferential direction for press-fitting the open 312 type linear bearing group 31.

[0083] During actual assembly, the open linear bearing 311 passes through the guide column welded on the inner wall of the mover housing 20, and the two cooperate to constrain the movement direction of the electromagnetic shock absorber 100, so that the electromagnetic shock absorber 100 can only perform linear reciprocating motion along the guide direction (axial direction).

[0084] Compared with the single central guide structure in the related art, the three equally distributed guide components 30 of the utility model make the electromagnetic vibration absorber 100 have stronger rigidity and better lateral stability, and can withstand greater lateral forces.

[0085] In addition, the guide assembly 30 arranged on the radial outer edge of the stator movable rod 10 saves the movement space reserved at the bottom center of the stator movable rod 10, so that the diameter of the annular groove of the stator movable rod 10 for installing the winding coil 41 can be reduced, which is convenient for increasing the number of winding turns (length) of the winding coil 41, and thus can generate a larger magnetic field output force (thrust) under the premise that the overall specifications of the electromagnetic shock absorber 100 remain unchanged.

[0086] Furthermore, the spring upper base 53 is bonded together with one end of the shock absorber tower top 51 facing the mover housing 20, and the outer protective cover 54 passes through the outer protective cover 54 through the second radially distributed fixing bolts 57 to be connected to the spring upper base 53 to enhance the connection stability between the two, and a spring lower base 71 is also sleeved on the mover housing 20, and the coil spring 60 is sleeved on the mover housing 20 and located between the mover housing 20 and the outer protective cover 54, so that the coil spring 60 can be protected by the outer protective cover 54 and the damage of the coil spring 60 can be reduced.

[0087] Alternatively, if Figure 1 As shown, a square hole is opened in the middle of the outer protective cover 54 to facilitate air flow and heat dissipation of the electromagnetic shock absorber 100, wherein the square hole can be covered with multiple layers of annular filter elements to prevent external dust or muddy water from entering the electromagnetic shock absorber 100 and causing damage to the working components.

[0088] Among them, one end of the coil spring 60 (such as Figure 2 The upper end of the coil spring 60 (as shown in FIG. Figure 2The lower end of the spring 1000 is against the lower spring base 71, and the upper spring base 53 and / or the lower spring base 71 are provided with a rubber pad at one end close to the coil spring 60 to reduce the wear and abnormal noise of the coil spring 60 during movement. In this way, during the movement of the vehicle 1000, the electromagnetic shock absorber 100 can jump up and down to compress the coil spring 60 to achieve the function of reducing the impact force of the vehicle 1000 on the ground together with the internal components of the electromagnetic shock absorber 100.

[0089] A limit-down shock-absorbing block 72 is provided at the lower end of the outer protective cover 54. The limit-down shock-absorbing block 72 is used for limiting shock absorption when the electromagnetic shock absorber 100 reaches a limit of downward jump when the wheel jumps up or falls into a pothole.

[0090] At the same time, the sensor mounting base 76 and the upper jump limit buffer block 75 are also fixed as a whole with the lower end of the movable housing 20 through the connecting bolts 78; wherein the position sensor 74 is installed on the sensor mounting base 76, and the position sensor grating 73 is installed on the inner wall of the center hole at the lower end of the stator movable rod 10, and a cylindrical groove of a certain depth is opened at the bottom of the stator movable rod 10 to accommodate the axial movement of the position sensor 74, and the position sensor 74 cooperates with the position sensor grating 73 fixed on the inner wall of the center hole at the bottom of the stator movable rod 10.

[0091] The electromagnetic absorber 100 is arranged in the vertical direction ( Figure 2 During the jumping process (in the axial direction), the position sensor 74 moves up and down synchronously with the sensor mounting base 76. The position sensor 74 can identify the jumping condition of the wheel through the change of the grating position of the position sensor grating 73, and transmit the parameters to the ECU in time, so that the ECU can give corresponding adjustment instructions in time based on other sensor parameters. The maximum compression height of the upper jumping limit shock-absorbing block 75 is higher than the upper end of the sensor mounting base 76, ensuring that the bottom of the stator movable rod 10 will not contact and collide with the sensor mounting base 76 after the shock-absorbing block is fully compressed at the upper jumping limit, thereby avoiding damage to the stator movable rod 10 or other components.

[0092] During the up and down bouncing of the electromagnetic shock absorber 100, the position sensor 74 moves up and down synchronously with the mover housing 20 through the sensor mounting base 76. At this time, the position sensor 74 can identify the bouncing condition of the wheel through the change in the position of the position sensor grating 73, and transmit the parameters to the ECU in time, so that the ECU can give corresponding adjustment instructions in time based on other sensor parameters. The limit compression height of the upper jump limit buffer block 75 is higher than the upper end of the sensor mounting base 76, so as to ensure that the bottom of the stator movable rod 10 (such as Figure 2 The lower end of the stator 10 will not come into contact with the sensor mounting base 76, thereby avoiding damage to the stator movable rod 10 or other components.

[0093] In actual use, when the vehicle 1000 is running, the sensor group recognizes the change in road conditions and transmits the signal to the ECU. The ECU changes the direction and size of the magnetic field of the electromagnetic shock absorber by adjusting the input current parameters of the winding coil 41 of the electromagnetic shock absorber 100 according to the actual conditions of the road surface, and further realizes real-time adjustment of the output thrust of the electromagnetic shock absorber 100. Finally, by controlling the thrust size and direction of the shock absorber, the impact force of the road on the vehicle 1000 when the operating conditions of the vehicle 1000 change is reduced, so that the operating state of the vehicle 1000 can be maintained as stable as possible, thereby improving the driving stability of the vehicle 1000 and the comfort of the driver and passengers.

[0094] It should be noted that the above arrangement and installation positions of the multiple components in the electromagnetic vibration absorber 100 are only a preferred embodiment and do not represent a limitation thereto. For example, the guide assembly 30 of the electromagnetic vibration absorber 100 of the utility model can be applied to all electromagnetic vibration absorbers 100 of linear motors (plate type, cylindrical type, multi-prism type, etc.), and can be deformed according to the shape of the stator inside the linear motor to form a guide structure with 3 points (three groups of guide assemblies 30), 4 points (four groups of guide assemblies 30), 5 points (five groups of guide assemblies 30) and multiple points (multiple groups of guide assemblies 30).

[0095] In addition, the type of spring of the electromagnetic shock absorber 100 (coil spring 60 or air spring, etc.), the layout of the spring (upper, middle, lower), the coordination between the stator and the mover (the winding coil 41 is on the mover housing 20, the permanent magnet group 42 is on the stator movable rod 10, or the winding coil 41 is on the stator movable rod 10, the permanent magnet group 42 is on the mover housing 20), the limiting structure (upper and lower limits, internal and external limits, etc.), and the layout and type of the position sensor 74 will not affect the adaptation of this type of guide component 30.

[0096] The utility model also provides a vehicle 1000 .

[0097] like Figure 6 As shown, a vehicle 1000 according to an embodiment of the present utility model comprises an electromagnetic shock absorber 100 according to any one of the above embodiments.

[0098] According to the vehicle 1000 of the embodiment of the utility model, the electromagnetic shock absorber 100 thereof is provided with a plurality of guide assemblies 30 spaced apart in the circumferential direction of the stator movable rod 10, so as to enhance the stiffness of the electromagnetic shock absorber 100, thereby enabling the electromagnetic shock absorber 100 to withstand a greater lateral force, especially when the road condition is bad, the electromagnetic shock absorber 100 can withstand a greater lateral force, thereby ensuring that the electromagnetic shock absorber 100 always maintains a linear reciprocating motion, which is beneficial to improving the output force of the electromagnetic shock absorber 100 and meeting the shock absorbing force requirements of the vehicle 1000.

[0099] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0100] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0101] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0102] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0103] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0104] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electromagnetic vibration absorber (100), characterized in that: include: Stator movable rod (10); A mover housing (20), the mover housing (20) being sleeved outside the stator movable rod (10), and the mover housing (20) and the stator movable rod (10) being capable of relative movement; A guide assembly (30), wherein the guide assembly (30) is arranged between the movable housing (20) and the stator movable rod (10), the movable housing (20) and the stator movable rod (10) are guided and matched through the guide assembly (30), and the guide assembly (30) is a plurality of groups and is spaced and distributed in the circumferential direction of the stator movable rod (10).

2. The electromagnetic vibration absorber (100) according to claim 1, characterized in that: The guide assembly (30) comprises a linear bearing group (31) and a guide rod (32), one of the linear bearing group (31) and the guide rod (32) being arranged on the stator movable rod (10) and the other being arranged on the movable housing (20), and at least a portion of the guide rod (32) being slidably mounted on the linear bearing group (31).

3. The electromagnetic vibration absorber (100) according to claim 2, characterized in that: The outer peripheral wall of the stator movable rod (10) is provided with a mounting groove (11), the linear bearing group (31) is installed in the mounting groove (11), and the guide rod (32) is arranged on the inner peripheral wall of the movable housing (20).

4. The electromagnetic vibration absorber (100) according to claim 3, characterized in that: The linear bearing group (31) is provided with an opening (312), and in the radial direction of the linear bearing group (31), the opening (312) is open toward the guide rod (32).

5. The electromagnetic vibration absorber (100) according to claim 4, characterized in that: A winding coil (41) and a permanent magnet group (42) are also provided between the stator movable rod (10) and the mover housing (20); one of the stator movable rod (10) and the mover housing (20) is provided with the winding coil (41) and the other is provided with the permanent magnet group (42).

6. The electromagnetic vibration absorber (100) according to claim 5, characterized in that: The outer peripheral wall of the stator movable rod (10) is provided with an annular groove, the winding coil (41) is wound in the annular groove, and the permanent magnet group (42) includes a plurality of sub-permanent magnets distributed at intervals along the circumference of the mover housing (20), and the sub-permanent magnets are located between two adjacent guide rods (32).

7. The electromagnetic vibration absorber (100) according to claim 2, characterized in that: The guide rod (32) comprises a rod body (321) and a spherical protrusion (322); the rod body (321) is connected to the inner peripheral wall of the mover housing (20); and the spherical protrusion (322) is connected to the rod body (321) and extends into the linear bearing group (31).

8. The electromagnetic vibration absorber (100) according to claim 2, characterized in that: The linear bearing group (31) comprises a plurality of open linear bearings (311), and the plurality of open linear bearings (311) are distributed at intervals in the axial direction of the stator movable rod (10).

9. The electromagnetic vibration absorber (100) according to claim 1, characterized in that: The guide components (30) are provided in three groups, and the distance between any two adjacent groups of the guide components (30) in the three groups is the same.

10. A vehicle (1000), characterized in that: It comprises an electromagnetic vibration absorber (100) according to any one of claims 1 to 9.

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