Shock absorber and vehicle having the same

Abstract

The present invention discloses a shock absorber and a vehicle having the same, wherein the shock absorber comprises a stator assembly, a movable assembly and a displacement detection assembly, wherein the movable assembly and the stator assembly can be movably matched along a preset direction, and the displacement detection assembly comprises a first matching piece and a second matching piece, wherein the first matching piece is fixedly arranged on the stator body, and the second matching piece is fixedly arranged on the movable assembly, and in the direction in which the stator assembly and the movable assembly move and match, there is a first gap between the stator body and the movable assembly, and at least part of the first matching piece and the second matching piece is located in the first gap. According to the shock absorber of the present invention, the setting of the displacement detection assembly is convenient, and the thrust of the shock absorber is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration reduction, and in particular to a vibration reducer and a vehicle having the same. Background Art

[0002] The shock absorber includes a stator assembly and a mover assembly, and a displacement detection assembly is usually provided in the shock absorber to obtain the displacement of the mover assembly relative to the stator assembly. In the related art, the displacement detection assembly is not properly designed, so that the displacement detection assembly occupies the arrangement space of the stator assembly and the mover assembly of the shock absorber, affects the arrangement of the stator assembly and the mover assembly, and affects the thrust of the shock absorber. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a shock absorber, which is convenient for setting the displacement detection component and has no thrust affecting the shock absorber.

[0004] The present invention also provides a vehicle having the shock absorber.

[0005] According to a shock absorber of an embodiment of the first aspect of the present invention, the shock absorber includes: a stator assembly, the stator assembly is suitable for being connected to one of a vehicle body and a wheel, and the stator assembly includes a stator body and a stator coil arranged on the stator body; a movable assembly, the movable assembly is suitable for being connected to the other of the vehicle body and the wheel, and the movable assembly and the stator assembly are movably matched along a preset direction, and the movable assembly includes a movable magnet; a displacement detection assembly, the displacement detection assembly includes a first mating piece and a second mating piece, the second mating piece cooperates with the first mating piece so that the displacement detection assembly is used to detect the displacement of the movable assembly relative to the stator assembly, the first mating piece is fixedly arranged on the stator body, and the second mating piece is fixedly arranged on the movable assembly, in the preset direction, there is a first gap between the stator body and the movable assembly, and at least part of the structure of the first mating piece and the second mating piece is located in the first gap.

[0006] According to the shock absorber of the embodiment of the present invention, there is a first gap between the stator body and the movable assembly. By arranging at least part of the structure of the first mating piece and the second mating piece in the first gap, the first mating piece and / or the second mating piece can utilize the space of the first gap, so that the arrangement of the first mating piece or the second mating piece is more reasonable, so as to reasonably utilize the arrangement space in the direction of movement and matching of the stator assembly and the movable assembly in the shock absorber, so as to avoid excessive occupation of the dimensional space of the shock absorber in the preset direction due to the arrangement of the first mating piece and the second mating piece, so that the arrangement of the first mating piece and / or the second mating piece is more reasonable, which is convenient to avoid waste of the internal space of the shock absorber, thereby facilitating the improvement of the space utilization rate of the shock absorber, and at the same time facilitating the reduction of the influence of the arrangement of the second mating piece on the stator coil and the movable magnet steel, so that the shock absorber has sufficient thrust.

[0007] In some embodiments, in a direction perpendicular to the preset direction, there is a second gap between the stator body and the mover assembly, at least part of the structure of one of the first mating piece and the second mating piece is located in the first gap, and at least part of the structure of the other is located in the second gap.

[0008] In some embodiments, the mover assembly also includes a mover body, the mover body defines a polygonal structure or a cylindrical structure, the mover magnet is arranged on the inner circumferential wall of the mover body, and at least part of the structure of the stator assembly is located in the mover body; in a preset direction, the end face of the stator assembly close to the bottom wall of the mover body is spaced apart from the bottom wall of the mover body to form the first gap, and the end face of the stator assembly close to the bottom wall of the mover body is formed with an installation surface of the first mating piece.

[0009] In some embodiments, the shock absorber also includes: a first buffer member, the first buffer member is arranged on the bottom wall of the mover body, the end surface of the stator body close to the bottom wall of the mover body has a first part and a second part, the first part is suitable for contacting with the first buffer member to limit the movement of the mover assembly, and the second part is formed as a mounting surface of the first mating member; in a preset direction, the distance between the first part and the first buffer member is less than or equal to the distance from the first mating member to the corresponding bottom wall of the mover body.

[0010] In some embodiments, an avoidance groove is formed on the bottom wall of the first buffer or the mover body, and in a preset direction, the projection of the first matching piece is located in the avoidance groove, and the distance between the bottom wall of the avoidance groove and the first matching piece is greater than or equal to the distance between the first buffer and the first part.

[0011] In some embodiments, the stator assembly includes a first guide member, and the movable assembly includes a second guide member, and the first guide member and the second guide member are cooperated to enable the movable assembly to move along a preset trajectory relative to the stator assembly; the first mating member is arranged on the first guide member, and the second mating member is arranged on the second guide member, and the second gap is formed between part of the second guide member and part of the first guide member in a direction perpendicular to the preset direction.

[0012] In some embodiments, a first guide column is provided on the mover body, the first guide column constitutes the second guide member, the stator body is formed with a first guide hole, the first guide hole constitutes the first guide member, the first guide column is accommodated in the first guide hole, the first guide column includes a contact portion and a non-contact portion, the contact portion moves along the side wall of the first guide hole, and the non-contact portion is spaced apart from the first guide hole to form the second gap.

[0013] In some embodiments, the first guide column is provided with a first mounting groove to form the non-contact portion, a groove wall on one side of the first mounting groove away from the guide hole forms a second mounting surface, and the second mating piece is provided on the second mounting surface.

[0014] In some embodiments, the mover body has a first opening, and at least a portion of the stator assembly is adapted to be exposed from the mover body through the first opening.

[0015] In some embodiments, the shock absorber further includes a first mounting seat, a second mounting seat and a shock absorbing spring, the first mounting seat is fixed to the stator assembly, the second mounting seat is fixed to the mover assembly, and the shock absorbing spring is stopped between the first mounting seat and the second mounting seat.

[0016] In some embodiments, the shock absorber further includes a protective member, and the protective member is disposed on the outside of the shock absorbing spring and is fixed to the first mounting seat.

[0017] In some embodiments, the shock absorber further comprises: a second buffer member, the second buffer member being arranged on a side of the bottom end of the protective member facing the second mounting seat.

[0018] In some embodiments, the displacement detection component further has a connecting wire, which is electrically connected to the first mating piece. The stator body forms a first wiring channel, and the first wiring channel extends to an end of the stator body away from the mover magnetic steel.

[0019] In some embodiments, the stator body includes a first body portion and a second body portion, the stator coil is arranged on the first body portion, at least a portion of the second body portion is suitable for being located outside the mover assembly and forming a body connection end, the first wiring channel includes a first channel section and a second channel section that are connected and arranged, the first channel section is formed on the first body portion, and the second channel section is formed on the second body portion.

[0020] In some embodiments, a minimum distance between the first channel segment and the central axis of the mover assembly is greater than a minimum distance between the second channel segment and the central axis of the mover assembly.

[0021] In some embodiments, the first channel segment is between the first guide and the stator coil.

[0022] In some embodiments, the displacement detection component further has a connecting wire, which is electrically connected to the second mating piece. The movable component forms a second wiring channel, and the second wiring channel extends to an end of the movable component facing away from the stator component.

[0023] In some embodiments, the first matching piece is a sensor body, and the second matching piece is a sensor grating or a sensor magnetic strip.

[0024] A vehicle according to an embodiment of the second aspect of the present invention comprises a body, a wheel and a shock absorber according to an embodiment of the first aspect of the present invention, wherein the stator assembly is connected to one of the body and the wheel, and the mover assembly is connected to the other of the body and the wheel.

[0025] The vehicle according to the embodiment of the present invention improves the comfort of the vehicle by adopting the shock absorber.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 is a schematic diagram of a shock absorber according to some embodiments of the present invention;

[0029] Figure 2 yes Figure 1 A cross-sectional view of the shock absorber shown in ;

[0030] Figure 3 yes Figure 2 The enlarged view of the circled section A;

[0031] Figure 4 are cross-sectional views of shock absorbers according to other embodiments of the present invention;

[0032] Figure 5 yes Figure 4 An enlarged view of the circled portion B.

[0033] Reference numerals:

[0034] The shock absorber 100, the first support member 10a, the second support member 10b, the first gap 10c, the second gap 10d,

[0035] Stator assembly 1, stator body 11, first wiring channel 11a, first channel section 11b, second channel section 11c, second guide column 11d, second opening 11e, second mounting groove 11f, first mounting surface 11g, fifth mounting surface 11h, sixth mounting surface 11j, first part 11k, second part 11n, first body part 111, second body part 112, stator coil 12, first guide hole 13,

[0036] The mover assembly 2, the mover magnetic steel 21, the second guide hole 21a, the fourth mounting surface 21b, the annular permanent magnet 211, the mover body 22, the first opening 22a, the third mounting surface 22b, the first guide column 23, the second mounting surface 23a, the first column section 231, the first mounting groove 231a, the second column section 232,

[0037] Displacement detection component 3, first matching component 31, second matching component 32, connecting line 33,

[0038] The first buffer 4a, the second buffer 4b, the avoidance groove 4c,

[0039] A first mounting seat 5 , a second mounting seat 6 , a damping spring 7 , and a protective member 9 . DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which 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.

[0041] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of 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.

[0042] Hereinafter, a vibration absorber 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0043] like Figure 2 and Figure 4 As shown, the shock absorber 100 includes a stator assembly 1 and a mover assembly 2, wherein the stator assembly 1 is suitable for being connected to one of the vehicle body and the wheel, and the stator assembly 1 includes a stator body 11 and a stator coil 12 arranged on the stator body 11; the mover assembly 2 is suitable for being connected to the other of the vehicle body and the wheel, and the mover assembly 2 is movably matched with the stator assembly 1 along a preset direction, and the mover assembly 2 includes a mover magnet 21.

[0044] The stator coil 12 generates a magnetic field after being energized, and the direction of movement of the magnetic field is the axial direction of the stator body 11. The magnetic field formed by the stator coil 12 after being energized interacts with the magnetic field of the mover magnet 21 to generate a force, so that the mover assembly 2 has a tendency to move along a preset direction relative to the stator assembly 1, that is, it forms a thrust or damping of the shock absorber 100, so as to change the height of the vehicle body relative to the wheels to adjust the posture of the entire vehicle body, thereby ensuring that the vehicle is traveling in a suitable posture.

[0045] For example, the stator assembly 1 is directly or indirectly connected to the vehicle body, and the mover assembly 2 is directly or indirectly connected to the wheel, in which case a portion of the stator assembly 1 may be located on the upper side of the mover assembly 2; or the stator assembly 1 is directly or indirectly connected to the wheel, and the mover assembly 2 is directly or indirectly connected to the vehicle body, in which case a portion of the stator assembly 1 may be located on the lower side of the mover assembly 2. The mover assembly 2 and the stator assembly 1 move in coordination to adjust the length of the shock absorber 100 to adjust the vehicle body posture, thereby adapting to different driving conditions of the vehicle and maintaining the stability of the vehicle driving.

[0046] Among them, the magnetic field strength and direction of the stator coil 12 can be changed by changing the current size and direction of the stator coil 12, so as to change the force between the stator assembly 1 and the mover assembly 2, so as to adjust the thrust of the shock absorber 100 and change the damping of the shock absorber 100, thereby achieving the lifting or lowering of the posture of the whole vehicle. For example, a vehicle has multiple shock absorbers 100, and the multiple shock absorbers 100 are respectively installed on different wheels. The multiple shock absorbers 100 can be independently controlled to adjust the posture of a single side of the vehicle (for example, raising or lowering the height of a single side of the vehicle).

[0047] like Figure 2 and Figure 4 As shown, the shock absorber 100 also includes a displacement detection component 3, which includes a first fitting member 31 and a second fitting member 32. The second fitting member 32 cooperates with the first fitting member 31 so that the displacement detection component 3 is used to detect the displacement of the movable component 2 relative to the stator component 1. The first fitting member 31 is fixed to the stator body 11, for example, the first fitting member 31 is fixed to one side of the stator body 11 in a preset direction, and the second fitting member 32 is fixed to the movable component 2 (for example, the second fitting member 32 is fixed to the movable magnetic steel 21 or the movable body 22 described later, etc.), and the first fitting member 31 and the second fitting member 32 cooperate to detect the displacement of the movable component 2 relative to the stator component 1; when the movable component 2 moves relative to the stator component 1, the second fitting member 32 moves with the movable component 2 relative to the first fitting member 31 to obtain the displacement of the movable component 2 relative to the stator component 1, so that the displacement detection component 3 obtains the displacement of the movable component 2 relative to the stator component 1.

[0048] In a preset direction, there is a first gap 10c between the stator body 11 and the mover assembly 2, and at least part of the structure of the first mating piece 31 and the second mating piece 32 is located in the first gap 10c, so that the first mating piece 31 and / or the second mating piece 32 can use the space of the first gap 10c, so that the arrangement of the first mating piece 31 and / or the second mating piece 32 is more reasonable. Therefore, by arranging the first mating piece 31 and / or the second mating piece 32 in the first gap 10c, the arrangement space in the direction of the movement and matching of the stator assembly 1 and the mover assembly 2 in the shock absorber 100 is reasonably utilized, so as to In order to avoid excessive occupation of the size space of the shock absorber 100 in the preset direction due to the setting of the displacement detection component 3, the setting of the displacement detection component 3 will not cause the size of the shock absorber 100 in the preset direction to increase excessively, so that the setting of the first matching component 31 and / or the second matching component 32 is more reasonable, which is convenient for avoiding waste of the internal space of the shock absorber 100, thereby facilitating improving the space utilization rate of the shock absorber 100, and at the same time facilitating reducing the influence of the arrangement of the first matching component 31 and the second matching component 32 on the stator coil 12 and the mover magnet 21, so that the shock absorber 100 has sufficient thrust.

[0049] It should be noted that at least part of the structure of the first fitting member 31 and the second fitting member 32 is located in the first gap 10c, which should be understood in a broad sense, and can be understood as: at least part of the first fitting member 31 is located in the first gap 10c, and / or at least part of the second fitting member 32 is located in the first gap 10c.

[0050] For example, in Figure 2 In the example, taking the preset direction as the axial direction of the shock absorber 100 as an example, in the axial direction of the shock absorber 100, there is a first gap 10c between the stator body 11 and the mover assembly 2, and the entire first fitting 31 is always arranged in the first gap 10c, and the first fitting 31 is arranged at one axial end of the stator body 11, and a part of the second fitting 32 is arranged in the first gap 10c, so that the first fitting 31 and the second fitting 32 can reasonably utilize the space of the first gap 10c, which is convenient for the displacement detection assembly 3 to reasonably utilize the space occupied by the shock absorber 100, so as to reduce the radial size of the shock absorber 100, avoid the waste of space occupied by the shock absorber 100, and make the internal components of the shock absorber 100 more compact.

[0051] It should be noted that the “displacement” in the present application is a vector, and its corresponding initial position can be preset in the displacement detection component 3 .

[0052] It can be understood that the first matching piece 31 is the sensor body, the second matching piece 32 is the detected piece, and the sensor body and the detected piece cooperate to obtain the displacement of the movable component 2 relative to the stator component; in other embodiments, the second matching piece 32 is the sensor body, and the first matching piece 31 is the detected piece. Of course, the displacement detection component 3 can be a grating displacement detection component or a resistive displacement detection component. When the displacement detection component 3 can be a grating displacement detection component, the detected piece is a sensor grating, and the sensor body is a grating sensor; when the displacement detection component 3 is a resistive displacement detection component, the detected piece is a sensor magnetic strip, and the sensor body is a resistive sensor or a current sensor, etc.; of course, the displacement detection component 3 is not limited to this, and the displacement detection principles of the grating displacement detection component and the resistive displacement detection component are already well known to those skilled in the art, and will not be repeated here.

[0053] For example, taking a grating displacement detection component as an example, the detected part is a sensor grating, and the sensor body is a grating sensor. The grating sensor can identify the position information of the grating scale in real time and communicate with the suspension controller in real time. When the relative position of the grating scale and the grating sensor changes, light interference and diffraction produce alternating light and dark stripes, namely, moiré fringes. The grating sensor identifies and converts the alternating light and dark moiré fringes into sinusoidal electrical signals. After amplification and shaping, two sinusoidal waves or square waves with a phase difference of ° are obtained, which are input into the suspension controller for processing and analysis to control the shock absorber 100 to increase damping or raise the vehicle body height, etc.

[0054] According to the shock absorber 100 of the embodiment of the present invention, there is a first gap 10c between the stator body 11 and the mover assembly 2. By arranging at least part of the structure of the first fitting member 31 and the second fitting member 32 in the first gap 10c, the first fitting member 31 and / or the second fitting member 32 can utilize the space of the first gap 10c, so that the arrangement of the first fitting member 31 or the second fitting member 32 is more reasonable, so as to reasonably utilize the arrangement space in the shock absorber 100 in the direction of movement and matching of the stator assembly 1 and the mover assembly 2, so as to avoid excessive occupation of the size space of the shock absorber 100 in a preset direction due to the arrangement of the first fitting member 31 and the second fitting member 32, so that the arrangement of the first fitting member 31 and / or the second fitting member 32 is more reasonable, which is convenient to avoid waste of the internal space of the shock absorber 100, thereby facilitating the improvement of the space utilization rate of the shock absorber 100, and at the same time facilitating the reduction of the influence of the arrangement of the second fitting member 32 on the stator coil 12 and the mover magnetic steel 21, so that the shock absorber 100 has sufficient thrust.

[0055] In some embodiments, Figure 2-Figure 3As shown, in a direction perpendicular to the preset direction, there is a second gap 10d between the stator body 11 and the mover assembly 2, at least part of the structure of one of the first fitting member 31 and the second fitting member 32 is located in the first gap 10c, and at least part of the structure of the other of the first fitting member 31 and the second fitting member 32 is located in the second gap 10d, so that the first fitting member 31 and the second fitting member 32 can more reasonably utilize the space of the first gap 10c and the second gap 10d, so as to ensure that the second fitting member 32 and the first fitting member 31 are always reliably matched, so that the setting of the displacement detection assembly 3 is more reasonable. Therefore, by arranging at least a portion of the structure of one of the first mating piece 31 and the second mating piece 32 in the first gap 10c and arranging at least a portion of the structure of the other of the first mating piece 31 and the second mating piece 32 in the second gap 10d, the arrangement space of the stator body 11 and the mover assembly 2 in a direction perpendicular to the preset direction can be reasonably utilized so as to reduce the size of the shock absorber 100 in the direction perpendicular to the preset direction; it can be seen that in the above technical solution, the first mating piece 31 and the second mating piece 32 can reasonably utilize the space of the shock absorber 100 in the preset direction and in the direction perpendicular to the preset direction.

[0056] Optionally, taking the preset direction as the axial direction of the shock absorber 100 as an example, when the mover assembly 2 is sleeved outside the stator body 11 (such as Figure 2 As shown in the figure, the second gap 10d can be located between the inner circumferential wall of the movable component 2 and the outer circumferential wall of the stator body 11; when the stator body 11 is sleeved outside the movable component 2, the second gap 10d can be located between the inner circumferential wall of the stator body 11 and the outer circumferential wall of the movable component 2; when the stator body 11 includes a first guide member, the movable component 2 includes a second guide member and the second guide member cooperates with the first guide member to guide the moving direction of the movable component 2 relative to the stator component 1, the first guide member and the second guide member are arranged inside and outside to cooperate, and the second gap 10d can be located between the first guide member and the second guide member. For example, the first guide member is a guide hole, and the second guide member is a guide column. The second gap 10d is located between the outer circumferential wall of the guide column and the hole wall of the guide hole (that is, the side wall of the guide hole). For another example, the first guide member is a guide column, and the second guide member is a guide hole, and the second gap 10d is still located between the outer circumferential wall of the guide column and the hole wall of the guide hole.

[0057] For example, in Figure 2 and Figure 3In the example, the preset direction is the axial direction of the shock absorber 100, the first fitting member 31 is located in the first gap 10c, a portion of the second fitting member 32 is located in the first gap 10c, and a portion of the second fitting member 32 is located in the second gap 10d. The first fitting member 31 and the second fitting member 32 are arranged radially opposite to each other to cooperate with each other, so that the first fitting member 31 and the second fitting member 32 reasonably utilize the internal arrangement space of the shock absorber 100, making the shock absorber 100 more compact. For another example, in Figure 4 In the example, the second matching member 32 is located in the first gap 10c, a portion of the first matching member 31 is disposed in the first gap 10c, and a portion of the first matching member 31 is disposed in the second gap 10d.

[0058] In some embodiments, Figure 2 As shown, when the second matching member 32 or the first matching member 31 is the detected member, for example, the detected member is a sensor grating or a sensor magnetic strip, the length of the detected member in the preset direction should be greater than or equal to the maximum stroke of the movable component 2 relative to the stator component 1, so as to ensure that the detection range of the displacement detection component 3 is greater than the motion stroke of the shock absorber 100, so as to ensure the accuracy and rationality of the measurement range. For example, taking the preset direction as the up-down direction, the length of the detected member in the up-down direction is greater than the sum of the up-jump stroke and the down-jump stroke of the movable component 2 relative to the stator component 1.

[0059] In some embodiments, Figure 2 and Figure 3 As shown, the mover assembly 2 also includes a mover body 22, which defines a polygonal structure or a cylindrical structure, and the mover magnet 21 is arranged on the inner circumferential wall of the mover body 22. At least part of the structure of the stator assembly 1 is located in the mover body 22, and the mover body 22 is sleeved outside the stator assembly 1. The mover assembly 2 can move relative to the stator assembly 1 along the axial direction of the mover body 22.

[0060] Therefore, the mover body 22 can play a certain protective role on the stator assembly 1, and the displacement detection assembly 3 will not occupy too much of the arrangement space provided for the stator coil 12 in the mover body 22, which is convenient for the arrangement of the stator coil 12, and there is no need to increase the length of the mover body 22 to provide arrangement space for the displacement detection assembly 3. At this time, the part of the stator assembly 1 extending into the mover body 22 can be understood as the part of the stator assembly 1 that cooperates with the mover assembly 2.

[0061] For example, in Figure 2In the example, taking the preset direction as the up and down direction and a part of the stator assembly 1 being located on the upper side of the mover assembly 2 as an example, a plurality of wire grooves are provided on the outer peripheral wall of the stator body 11, and the wire grooves are arranged at intervals along the axial direction of the stator body 11, and each wire groove extends along the circumferential direction of the stator body 11. The stator coil 12 is arranged in the corresponding wire groove, and an insulating part is provided in the wire groove to insulate the stator coil 12 from the stator body 11. The stator assembly 1 is arranged in the mover body 22, and the mover body 22 can move in the up and down direction relative to the stator assembly 1.

[0062] Among them, in the preset direction, the end face of the stator assembly 1 close to the bottom wall of the mover body 22 is spaced apart from the bottom wall of the mover body 22 to form a first gap 10c. At this time, a part of the stator assembly 1 can be located on the upper side of the mover assembly 2, and the end face of the stator assembly 1 close to the bottom wall of the mover body 22 is formed with an installation surface of the first mating piece 31, which is convenient for setting the first mating piece 31 to effectively utilize the space of the first gap 10c, and facilitates the reliable mating of the first mating piece 31 and the second mating piece 32, thereby ensuring the accuracy of the first mating piece 31 and the second mating piece 32 in detecting the displacement of the mover assembly 2 relative to the stator assembly 1.

[0063] In some embodiments, Figure 2 As shown, the shock absorber 100 also includes a first buffer member 4a, which is arranged on the bottom wall of the mover body 22. The end surface of the stator body 11 close to the bottom wall of the mover body 22 has a first part 11k and a second part 11n. The first part 11k is suitable for contacting with the first buffer member 4a to limit the movement of the mover assembly 2. At the same time, the first buffer member 4a can also absorb collision energy and reduce the damage between the mover assembly 2 and the stator assembly 1, thereby playing a role of limiting protection.

[0064] Among them, the second part 11n is formed as the installation surface of the first fitting part 31. In the preset direction, the distance between the first part 11k and the first buffer part 4a is less than or equal to the distance from the first fitting part 31 to the bottom wall of the corresponding movable body 22, so as to ensure a sufficient distance between the first buffer part 4a and the first fitting part 31, so that the setting of the first fitting part 31 will not affect the stroke of the movable assembly 2 relative to the stator assembly 1, and ensure the safety of the first fitting part 31, and at the same time help to increase the length of the stator body 11 that can be extended into the movable body 22, so as to extend the moving stroke of the movable assembly 2.

[0065] In some embodiments, Figure 2As shown, the first buffer member 4 is formed with an avoidance groove 4c. In a preset direction, the projection of the first fitting member 31 is located in the avoidance groove 4c, so that the avoidance groove 4c can be used to accommodate the first fitting member 31 to play an avoidance role, thereby avoiding interference between the mover body 22 and the first fitting member 31 and affecting the safety of the first fitting member 31; the distance between the bottom wall of the avoidance groove 4c and the first fitting member 31 is greater than or equal to the distance between the first buffer member 4a and the first part 11k, so as to ensure a sufficient distance between the avoidance groove 4c and the first fitting member 31, and further ensure that the setting of the first fitting member 31 will not affect the stroke of the mover assembly 2 relative to the stator assembly 1, thereby ensuring the safety of the first fitting member 31.

[0066] For example, in Figure 2 In the example, the preset direction is the up and down direction, the first buffer member 4a is formed with an avoidance groove 4c, the first matching member 31 is arranged at the lower end of the stator body 11, and the first buffer member 4a is arranged on the bottom wall of the mover body 22. The avoidance groove 4c is used to accommodate the first matching member 31 to play an avoidance role, which is beneficial to increase the length of the stator body 11 that can be extended into the mover body 22, so as to extend the moving stroke of the mover assembly 2.

[0067] In other embodiments, the avoidance groove 4 c may also be formed on the bottom wall of the mover body 22 .

[0068] In some embodiments, Figure 2 As shown, the stator assembly 1 includes a first guide, and the mover assembly 2 includes a second guide. The first guide and the second guide are arranged in cooperation to enable the mover assembly 2 to move along a preset track relative to the stator assembly 1. For example, the first guide and the second guide cooperate to guide the movement of the mover assembly 2 relative to the stator assembly 1. The first matching member 31 is arranged on the first guide, and the second matching member 32 is arranged on the second guide. The first matching member 31 and the second matching member 32 cooperate to detect the displacement of the mover assembly 2 relative to the stator assembly 1, and at the same time facilitate the reasonable use of the space at the first guide and the second guide.

[0069] Among them, in the direction perpendicular to the preset direction, a second gap 10d is formed between part of the second guide member and part of the first guide member, so as to reasonably utilize the arrangement space of the stator body 11 and the mover assembly 2 in the direction perpendicular to the preset direction, so as to reduce the size of the shock absorber 100 in the direction perpendicular to the preset direction; it can be seen that in the above technical scheme, the first mating member 31 and the second mating member 32 can reasonably utilize the space of the shock absorber 100 in the preset direction and in the direction perpendicular to the preset direction.

[0070] For example, the first matching piece 31 is located in the first gap 10c, and in a direction perpendicular to the preset direction, there is a second gap 10d between part of the first guide piece and part of the second guide piece, and at least part of the structure of the second matching piece 32 is located in the second gap 10d.

[0071] In some embodiments, one of the first guide member and the second guide member is a guide hole, and the other is a guide column. The guide hole and the guide column cooperate to guide the movement of the movable subassembly 2 relative to the stator assembly 1, which is beneficial to improving the running stability of the shock absorber 100.

[0072] For example, in Figure 2 In the example, the preset direction is the up-down direction, the stator assembly 1 includes a first guide member, the first guide member is a guide hole, the mover assembly 2 is provided with a second guide member, the second guide member is a guide column, the guide hole extends downward to the lower end surface of the stator body 11, and the guide column and the guide hole cooperate to guide the mover assembly 2 relative to the stator assembly 1 along the axial direction ( Figure 2 The first mating piece 31 is provided at the axial lower end of the stator body 11, and the second mating piece 32 is provided on the guide column, and on the preset plane, at least the upper part of the orthographic projection of the second mating piece 32 overlaps with at least the lower part of the orthographic projection of the mover magnetic steel 21, wherein the preset plane is parallel to the preset direction; or, the first mating piece 31 is provided at the axial lower end of the stator body 11, and in the radial direction of the stator body 11, the second mating piece 32 is provided between the mover magnetic steel 21 and the stator coil 12, and on the preset plane, at least the upper part of the orthographic projection of the second mating piece 32 overlaps with at least the lower part of the orthographic projection of the mover magnetic steel 21.

[0073] Of course, in other examples, the first guide member is a guide column, and the second guide member is a guide hole.

[0074] In some embodiments, Figure 2As shown, a first guide column 23 is arranged on the mover body 22, and the first guide column 23 is configured as a second guide member. A first guide hole 13 is formed on the stator body 11, and the first guide hole 13 is configured as a first guide member. The first guide column 23 is accommodated in the first guide hole 13, and the first guide column 23 includes a contact portion and a non-contact portion. The contact portion moves along the side wall of the first guide hole 13 to guide the moving direction of the mover assembly 2 relative to the stator assembly 1, thereby improving the running stability of the shock absorber 100. The non-contact portion is spaced apart from the first guide hole 13 to form a second gap 10d between the non-contact portion and the side wall of the first guide hole 13, so as to provide space for the setting of the other one of the first mating piece 31 and the second mating piece 32. Exemplarily, the first fitting piece 31 can be arranged at the first guide hole 13 and located on one side of the stator body 11 in a preset direction, the second fitting piece 32 can be arranged between the side wall of the first guide hole 13 and the outer peripheral wall of the first guide column 23, the first fitting piece 31 can be arranged in the first gap 10c, and a part of the second fitting piece 32 is arranged in the first gap 10c.

[0075] For example, in Figure 2 In the example, the inner wall of the mover body 22 is provided with a first guide column 23, and the stator body 11 is formed with a first guide hole 13. The first guide column 23 extends along the axial direction of the stator body 11 and extends into the first guide hole 13. The contact portion of the first guide column 23 is slidably matched with the side wall of the first guide hole 13, and the non-contact portion of the first guide column 23 is spaced from the first guide hole 13 to form a second gap 10d. In the radial direction of the stator body 11, the stator coil 12 is located radially outside the first guide hole 13, and the first matching piece 31 and the second matching piece 32 will not occupy the arrangement space of the stator coil 12, so as to avoid affecting the thrust of the shock absorber 100 due to the reduction of the arrangement space of the stator coil 12. At the same time, the arrangement mode of the displacement detection component 3 is diversified to adapt to shock absorbers 100 with different structures and improve the applicability of the shock absorber 100.

[0076] In some embodiments, Figure 2 and Figure 3 As shown, a first mounting surface 11g is formed on the stator body 11, and a second mounting surface 23a is formed on the first guide column 23. The first mounting surface 11g and the second mounting surface 23a are spaced apart from each other. The first mating piece 31 is arranged on the first mounting surface 11g, and the second mating piece 32 is arranged on the second mounting surface 23a, so that the first mating piece 31 and the second mating piece 32 can be reliably mated with each other, thereby ensuring the accuracy of the first mating piece 31 and the second mating piece 32 in detecting the displacement of the mover assembly 2 relative to the stator assembly 1.

[0077] Optionally, the first mounting surface 11 g may be: an end surface of the stator body 11 close to the bottom wall of the mover body 22 , or a side wall of the first guide hole 13 , and the second mounting surface 23 a may be an outer peripheral wall of the first guide column 23 .

[0078] For example, in Figure 2 In the example, the preset direction is the up and down direction, a first guide hole 13 is formed in the stator body 11, and a first guide column 23 is formed on the bottom wall of the mover body 22. The first guide column 23 is slidingly matched with the side wall of the first guide hole 13. The first mounting surface 11g is a part of the end surface of the stator body 11 close to the bottom wall of the mover body 22. The first mating piece 31 is arranged on the first mounting surface 11g, the second mounting surface 23a is the outer peripheral wall of the first guide column 23, and the second mating piece 32 is arranged on the second mounting surface 23a. The second mating piece 32 is spaced apart from the hole wall of the first guide hole 13, and the second mating piece 32 does not affect the sliding match between the first guide column 23 and the first guide hole 13, so as to reasonably utilize the space between the first guide column 23 and the first guide hole 13 under the premise of ensuring the stable matching of the mover assembly 2 and the stator assembly 1. The first mating piece 31 cooperates with the second mating piece 32. When the movable assembly 2 is displaced relative to the stator assembly 1, the movable body 22 drives the first guide column 23 to slide and cooperate with the side wall of the first guide hole 13 along the axial direction of the stator body 11. The first detection piece cooperates with the second detection piece to detect the displacement of the movable assembly 2 relative to the stator assembly 1.

[0079] In the above technical solution, the first matching member 31 may be a sensor body or a detected member.

[0080] In other embodiments, the polygonal structure or cylindrical structure defined by the mover body 22, the stator body 11 is formed with a first mounting surface 11g, the inner peripheral wall of the mover body 22 is formed with a third mounting surface 22b, the first mounting surface 11g and the third mounting surface 22b are arranged at intervals, the second matching piece 32 is arranged on the third mounting surface 22b, the first matching piece 31 is arranged on the first mounting surface 11g, the first matching piece 31 matches with the second matching piece 32, and the first matching piece 31 and the second matching piece 32 can also be matched reliably to detect the displacement of the mover assembly 2 relative to the stator assembly 1. At this time, the stator assembly 1 and the mover assembly 2 can be matched by the first guide member and the second guide member, or the stator assembly 1 and the mover assembly 2 can be matched without the first guide member and the second guide member.

[0081] It should be noted that the second matching member 32 is disposed on the inner peripheral wall of the movable body 22, which may include the second matching member 32 being directly or indirectly disposed on the inner peripheral wall of the movable body 22. Figure 2In the example, taking the case where a part of the stator assembly 1 is located on the upper side of the mover assembly 2 as an example, the lower end of the mover magnet 21 is spaced apart from the inner bottom wall of the mover body 22, so that the inner circumferential wall of the mover body 22 may include a first circumferential wall and a second circumferential wall arranged in sequence along the up and down directions, the mover magnet 21 is only arranged on the first circumferential wall and does not cover the second circumferential wall, the lower part of the second fitting piece 32 is fixed to the second circumferential wall, and the upper end of the second fitting piece 32 can extend upward between the mover magnet 21 and the stator assembly 1, so that the second fitting piece 32 is directly arranged on the inner circumferential wall of the mover body 22; of course, the second fitting piece 32 can also be fixed to the inner circumferential wall of the mover magnet 21, so that the second fitting piece 32 is indirectly arranged on the inner circumferential wall of the mover body 22.

[0082] In some embodiments, Figure 2 and Figure 3 As shown, a first mounting surface 11g is formed on the stator body 11, and a second mounting surface 23a is formed on the first guide column 23. The first mounting surface 11g and the second mounting surface 23a are spaced apart from each other. The first mating piece 31 is arranged on the first mounting surface 11g, and the second mating piece 32 is arranged on the second mounting surface 23a, so that the first mating piece 31 and the second mating piece 32 can be reliably mated with each other, thereby ensuring the accuracy of the first mating piece 31 and the second mating piece 32 in detecting the displacement of the mover assembly 2 relative to the stator assembly 1.

[0083] Optionally, the first mounting surface 11g may be: an end surface of the stator body 11 extending into the mover body 22 away from the first opening 22a, or a side wall of the first guide hole 13 , and the second mounting surface 23a may be an outer peripheral wall of the first guide column 23 .

[0084] For example, in Figure 2In the example, the preset direction is the up and down direction, the first opening 22a is located on the upper side of the mover body 22, the stator body 11 extends into the mover body 22 through the first opening 22a, a first guide hole 13 is formed in the stator body 11, and a first guide column 23 is formed on the bottom wall of the mover body 22, the first guide column 23 is slidably matched with the side wall of the first guide hole 13, the first mounting surface 11g is the end surface of the stator body 11 extending into the mover body 22 away from the first opening 22a, the first matching piece 31 is arranged on the first mounting surface 11g, the second mounting surface 23a is the outer peripheral wall of the first guide column 23, the second matching piece 32 is arranged on the second mounting surface 23a, the second matching piece 32 is spaced apart from the hole wall of the first guide hole 13, and the second matching piece 32 does not affect the sliding match between the first guide column 23 and the first guide hole 13, so as to reasonably utilize the space between the first guide column 23 and the first guide hole 13 under the premise of ensuring the stable matching of the mover assembly 2 and the stator assembly 1. The first mating piece 31 cooperates with the second mating piece 32. When the movable assembly 2 is displaced relative to the stator assembly 1, the movable body 22 drives the first guide column 23 to slide and cooperate with the side wall of the first guide hole 13 along the axial direction of the stator body 11. The first detection piece cooperates with the second detection piece to detect the displacement of the movable assembly 2 relative to the stator assembly 1.

[0085] In the above technical solution, the first matching member 31 may be a sensor body or a detected member.

[0086] In other embodiments, the mover body 22 defines a polygonal structure or a cylindrical structure having a first opening 22a, a first mounting surface 11g is formed on the stator body 11, a third mounting surface 22b is formed on the inner peripheral wall of the mover body 22, the first mounting surface 11g and the third mounting surface 22b are arranged at intervals, the second mating piece 32 is arranged on the third mounting surface 22b, the first mating piece 31 is arranged on the first mounting surface 11g, the first mating piece 31 and the second mating piece 32 are matched, and the first mating piece 31 and the second mating piece 32 can also be matched reliably to detect the displacement of the mover assembly 2 relative to the stator assembly 1. At this time, the stator assembly 1 and the mover assembly 2 can be matched through the first guide member and the second guide member, or the stator assembly 1 and the mover assembly 2 can be matched without the first guide member and the second guide member.

[0087] It should be noted that the second matching member 32 is disposed on the inner peripheral wall of the movable body 22, which may include the second matching member 32 being directly or indirectly disposed on the inner peripheral wall of the movable body 22. Figure 2In the example, taking the case where a part of the stator assembly 1 is located on the upper side of the mover assembly 2 as an example, the lower end of the mover magnet 21 is spaced apart from the inner bottom wall of the mover body 22, so that the inner circumferential wall of the mover body 22 can include a first circumferential wall and a second circumferential wall arranged in sequence along the up and down directions, the mover magnet 21 is only arranged on the first circumferential wall and does not cover the second circumferential wall, the lower part of the second fitting 32 is fixed to the second circumferential wall, and the upper end of the second fitting 32 can extend upward between the mover magnet 21 and the stator assembly 1, so that the second fitting 32 is directly arranged on the inner circumferential wall of the mover body 22; of course, the second fitting 32 can also be fixed to the inner circumferential wall of the mover magnet 21.

[0088] In some embodiments, Figure 3 As shown, the first guide column 23 is provided with a first mounting groove 231a to form a non-contact portion, and a groove wall on one side of the first mounting groove 231a away from the guide hole forms a second mounting surface 23a, and the second fitting member 32 is arranged on the second mounting surface 23a, and the second fitting member 32 is installed in the first mounting groove 231a, so that the first guide column 23 frees up a suitable installation space for the second fitting member 32, which is convenient for realizing that the first fitting member 31 and the second fitting member 32 have a reasonable distance in a direction perpendicular to the preset direction, and avoids interference between the first fitting member 31 and the second fitting member 32 when they slide and cooperate with the first guide hole 13 along the preset direction with the first guide column 23, thereby facilitating the arrangement of the second fitting member 32 without changing the volume of the original stator coil 12, and without affecting the thrust of the shock absorber 100, and at the same time making the internal structure of the shock absorber 100 more compact.

[0089] For example, in Figure 2-Figure 3 In the example, the first mating part 31 is the sensor body, the second mating part 32 is the detected part, such as the sensor grating, the outer peripheral wall of the first guide column 23 is formed with a first mounting groove 231a, the second mating part 32 is arranged in the first mounting groove 231a, and the first mating part 31 and the second mating part 32 are arranged radially opposite to each other.

[0090] Optionally, the first guide column 23 includes a first column section 231 and a second column section 232, a first mounting groove 231a is formed on the outer peripheral wall of the first column section 231, and the second column section 232 is guided and matched with the first guide hole 13, that is, the length of the first mounting groove 231a is less than the length of the first guide column 23, so that the first guide column 23 and the first guide hole 13 have sufficient matching length to ensure the guiding effect after the first guide column 23 and the first guide hole 13 are matched, thereby ensuring the accuracy of the direction of movement of the movable component 2 relative to the stator component 1, and at the same time, it is beneficial to take into account the matching accuracy of the first guide column 23 and the first guide hole 13 and reduce the requirements for the cross-sectional shape of the first guide column 23.

[0091] In some embodiments, Figure 2 As shown, the mover body 22 has a first opening 22a, and the stator assembly 1 can extend into the mover body 22 through the first opening 22a, so that the mover body 22 is sleeved outside the stator assembly 1, and the mover assembly 2 moves axially relative to the stator assembly 1 along the stator body 11; at least a portion of the stator assembly 1 is suitable for being exposed to the mover body 22 from the first opening 22a, so that the portion of the stator coil 12 exposed outside the mover body 22 can directly exchange heat with the external environment, and at the same time, the mover assembly 2 reciprocates relative to the stator assembly 1 to drive the air flow inside the mover body 22, which is beneficial to dissipate the heat inside the mover body 22 in time, thereby reducing the temperature of the stator coil 12, improving the performance of the shock absorber 100, and thus reducing the power loss of the vehicle, while avoiding high temperature damage to the internal components of the shock absorber 100 (such as the first fitting 31 or the stator coil 12, etc.), so as to improve the service life of the shock absorber 100.

[0092] In addition, the length of the overlapping part of the stator assembly 1 and the mover assembly 2 in the direction of movement may not be limited by the size of the mover body 22. Compared with the prior art, the mover body 22 of the same specification has a longer effective connection length between the mover assembly 2 and the stator assembly 1. There is no need to increase the length of the mover body 22 to increase the effective connection length or increase the current of the stator coil 12 to increase the magnetic field strength, so that a greater thrust can be obtained, so that the damping adjustment effect of the shock absorber 100 is better and the vehicle body posture adjustment effect is better.

[0093] It can be understood that in the prior art, the end of the mover body is closed. In order to ensure that the stroke between the mover assembly and the stator assembly meets the vehicle body posture adjustment requirements, a larger mover body needs to be provided. While meeting the stroke adjustment requirements, the effective connection length can also be further increased to meet the thrust requirements. The mover body 22 is provided with a first opening 22a, so there is no need to increase the size of the mover body 22, so that the stator assembly 1 can at least partially extend out of the mover body 22 to meet the vehicle body posture adjustment requirements and increase the effective connection length.

[0094] In some embodiments, Figure 1 and Figure 2 As shown, the shock absorber 100 also includes a first mounting seat 5, a second mounting seat 6 and a shock-absorbing spring 7. The first mounting seat 5 is fixed to the stator assembly 1, the second mounting seat 6 is fixed to the mover assembly 2, and the shock-absorbing spring 7 is stopped between the first mounting seat 5 and the second mounting seat 6 to absorb the vibration transmitted from the ground to the vehicle body when the vehicle is driving, thereby ensuring that the vehicle has good driving smoothness.

[0095] For example, in Figure 2In the example, a part of the stator assembly 1 is located on the upper side of the movable assembly 2, the first mounting seat 5 is located on the upper side of the movable assembly 2 and is arranged around the stator body 11, the second mounting seat 6 is fixed to the upper peripheral wall of the movable assembly 2, the second mounting seat 6 is located on the lower side of the first mounting seat 5 and is arranged oppositely, and a damping spring 7 is provided between the first mounting seat 5 and the second mounting seat 6, the two ends of the damping spring 7 are respectively stopped at the first mounting seat 5 and the second mounting seat 6, and the second mounting seat 6 follows the movable assembly 2 to move relative to the first mounting seat 5 in a preset direction. Of course, the positions of the first mounting seat 5 and the second mounting seat 6 are not limited to this.

[0096] For example, in Figure 2 In the example, a part of the stator assembly 1 is located on the upper side of the mover assembly 2, the first mounting seat 5 is fixed to the lower side of the stator body 11, and the first mounting seat 5 is arranged around the part of the mover magnetic steel 21 located on the lower side of the stator assembly 1, the second mounting seat 6 is located on the lower side of the first mounting seat 5, and the second mounting seat 6 is arranged around the mover magnetic steel 21, the damping spring 7 is arranged between the first mounting seat 5 and the second mounting seat 6, and the second mounting seat 6 follows the mover assembly 2 to move relative to the first mounting seat 5 in a preset direction. Of course, the positions of the first mounting seat 5 and the second mounting seat 6 are not limited to this.

[0097] In some embodiments, the first mounting seat 5 and / or the second mounting seat 6 is provided with a spring buffer (such as a rubber member, etc.), and the shock-absorbing spring 7 stops at the spring buffer. The spring buffer can absorb the friction vibration between the shock-absorbing spring 7 and the first mounting seat 5 or the second mounting seat 6 to reduce the noise of the shock absorber 100.

[0098] Of course, the first mounting seat 5 and the second mounting seat 6 may also be provided with spring buffers.

[0099] In some embodiments, Figure 2 As shown, the shock absorber 100 also includes a protective member 9, which is covered on the outside of the shock absorbing spring 7 and fixed to the first mounting seat 5 to protect the internal components of the shock absorber 100 and prevent debris from entering the shock absorber 100 and affecting the normal operation of the shock absorber 100.

[0100] The bottom end of the protective member 9 is located below the second mounting seat 6 , and the bottom end of the protective member 9 is suitable for abutting against the second mounting seat 6 to limit the maximum displacement of the shock absorber 100 , thereby limiting the displacement of the shock absorber 100 and improving the utilization rate of the second mounting seat 6 .

[0101] In some embodiments, Figure 2As shown, the shock absorber 100 also includes a second buffer member 4b, which is arranged on the side of the bottom end of the protective member 9 facing the second mounting seat 6. The second buffer member 4b is suitable for abutting against the mover assembly 2 to limit the maximum length of the part of the stator assembly 1 exposed from the mover body 22 in a preset direction, and absorb the noise when the second mounting seat 6 and the protective member 9 are abutted.

[0102] For example, in Figure 2 In the example, the mover assembly 2 includes a mover body 22, a first mounting seat 5 is arranged above the second mounting seat 6, and a second buffer 4b is arranged at the lower end of the protective member 9. When the second mounting seat 6 moves downward to the lower jump stroke limit position, the second mounting seat 6 stops contacting with the second buffer 4b, and the second buffer 4b limits the second mounting seat 6 from continuing to move downward. The second mounting seat 6 is fixedly connected to the mover body 22, thereby limiting the maximum downward movement of the mover assembly 2; the shock absorber 100 also includes a first buffer 4a, and the first buffer 4a is arranged on the bottom wall of the mover body 22 away from the first opening 22a. When the mover body 22 moves upward to the upper jump stroke limit position, the mover body 22 stops contacting with the first buffer 4a, and the first buffer 4a limits the mover body 22 from continuing to move upward, thereby limiting the maximum upward movement of the mover assembly 2. In some embodiments, such as Figure 2 As shown, the displacement detection component 3 also has a connecting wire 33, which is electrically connected to the first matching piece 31, and the other end of the connecting wire 33 can be connected to the suspension controller. The suspension controller receives the signal sent by the displacement detection component 3 to adjust the length of the shock absorber 100 to adjust the posture of the entire vehicle. The stator body 11 is formed with a first wiring channel 11a, and the first wiring channel 11a extends to one end of the stator body 11 away from the mover magnet 21. The connecting wire 33 is guided to the outside of the stator assembly 1 and to the outside of the mover body 22 through the first wiring channel 11a.

[0103] It can be seen that the connecting wire 33 passes through the first wiring channel 11a on the stator body 11 to connect the first matching piece 31 and the suspension controller, which facilitates the arrangement of the connecting wire 33, and the connecting wire 33 and the first matching piece 31 remain relatively still with the stator body 11 to avoid the internal components of the shock absorber 100 from relative movement and damaging the connecting wire 33, so as to protect the connecting wire 33 and make the arrangement of the internal wiring harness of the shock absorber 100 more reliable. In addition, the first wiring channel 11a can guide the connecting wire 33 to the end of the stator body 11 away from the mover magnet 21, so that the outlet position of the connecting wire 33 is far away from the mover magnet 21, and will not limit the travel of the mover assembly 2 relative to the stator assembly 1. Exemplarily, in the above technical solution, when the displacement detection component 3 is a grating displacement detection component, the first matching piece 31 is a grating sensor; or, when the displacement detection component 3 is a resistive displacement detection component, the first matching piece 31 is a resistive sensor or a current sensor. For example, in Figure 2 In the example, the stator assembly 1 is connected to the vehicle body, the mover assembly 2 is connected to the wheel, a first opening is formed at the upper end of the mover body 22, the stator assembly 1 extends into the interior of the mover body 22 through the first opening, a first matching piece 31 is provided at the bottom end of the stator body 11, a first wiring channel 11a is formed in the stator body 11, the first wiring channel 11a extends from the lower end surface of the stator body 11 to the top of the stator body 11, a connecting line 33 is provided in the first wiring channel 11a, one end of the connecting line 33 is connected to the first matching piece 31, and the other end of the connecting line 33 passes through the top of the stator body 11 and is connected to the vehicle wiring harness, and the vehicle wiring harness is connected to the suspension controller, so that the displacement detection component 3 converts the displacement of the mover assembly 2 relative to the stator assembly 1 into an electrical signal and transmits it to the suspension controller through the connecting line 33, so that the suspension controller obtains the height posture of the whole vehicle, and at the same time, the suspension controller performs comprehensive analysis and processing according to the signals of other sensors (such as acceleration sensors, etc.) to adjust the vehicle body posture to ensure that the vehicle is traveling in a suitable posture.

[0104] Of course, in other examples, the stator assembly 1 is connected to the wheel, the mover assembly 2 is connected to the vehicle body, the lower end of the mover body 22 is formed with a first opening 22a, the stator assembly 1 extends into the interior of the mover body 22 through the first opening 22a, the top of the stator body 11 is provided with a first fitting 31, and a first wiring channel 11a is formed in the stator body 11, the first wiring channel 11a extends from the upper end surface of the stator body 11 to the bottom end of the stator body 11, and the connecting wire 33 is provided in the first wiring channel 11a, one end of the connecting wire 33 is connected to the first fitting 31, and the other end of the connecting wire 33 passes through the bottom end of the stator body 11 and is connected to the vehicle wiring harness. It can be understood that the first wiring channel can also be formed as a channel for the wires connecting the stator coil 12 to the external power supply, or a channel for the wires dedicated to connecting the stator coil 12 to the external power supply is provided on the stator assembly. The present application does not make specific restrictions on the setting of the channel for the wires connecting the stator coil 12 to the external power supply.

[0105] In other embodiments, the displacement detection component 3 further has a connecting wire 33, which is electrically connected to the second mating piece 32. The movable component 2 forms a second wiring channel, and the second wiring channel extends to the end of the movable component 2 facing away from the stator component 1. The connecting wire 33 is guided to the outside of the movable component 2 through the second wiring channel.

[0106] It can be seen that the connecting wire 33 passes through the second wiring channel to connect the second matching component 32 and the suspension controller, which facilitates the arrangement of the connecting wire 33, and the connecting wire 33 and the second matching component 32 are relatively stationary with the movable subassembly 2 to avoid the relative movement of the internal components of the shock absorber 100 to damage the connecting wire 33, so as to protect the connecting wire 33 and make the arrangement of the internal wiring harness of the shock absorber 100 more reliable. In the above technical solution, exemplarily, when the displacement detection component 3 is a grating displacement detection component, the second matching component 32 is a grating sensor; or, when the displacement detection component 3 is a resistive displacement detection component, the second matching component 32 is a resistive sensor or a current sensor.

[0107] Optionally, the connecting wire 33 is electrically connected to the second mating piece 32, a first guide column 23 is provided on the inner wall of the movable body 22, a first guide hole 13 is formed on the stator body 11, and the first guide column 23 extends along a preset direction and extends into the first guide hole 13 to guide the movement direction of the movable assembly 2 relative to the stator assembly 1; when the second mating piece 32 is provided on the outer peripheral wall of the first guide column 23, a part of the second wiring channel may also be formed on the first guide column 23.

[0108] In some embodiments, Figure 2 As shown, the stator body 11 includes a first body portion 111 and a second body portion 112, the stator coil 12 is arranged on the first body portion 111, at least a portion of the second body portion 112 is suitable for being located outside the mover body 22 and forming a body connection end, and the outer peripheral wall of the second body portion 112 is located radially inward of the outer peripheral wall of the first body portion 111, so as to save the occupied space and material amount of the stator body 11 and reduce the cost under the premise of ensuring the reliable use of the stator body 11; for example, taking the preset direction as the up and down direction and a part of the stator assembly 1 being located on the upper side of the mover assembly 2 as an example, the second body portion 112 is located on the upper side of the first body portion 111, if the outer peripheral wall of the first body portion 111 and the outer peripheral wall of the second body portion 112 are both roughly cylindrical, the outer diameter of the first body portion 111 is greater than the outer diameter of the second body portion 112, of course, the shape of the outer peripheral wall of the first body portion 111 and the outer peripheral wall of the second body portion 112 is not limited to this.

[0109] The first wiring channel 11a includes a first channel section 11b and a second channel section 11c which are connected to each other. The first channel section 11b is formed on the first body part 111, and the second channel section 11c is formed on the second body part 112, so as to guide the connecting wire 33 to the end of the stator body 11 away from the mover magnetic steel 21. For example, the first channel section 11b can penetrate to the end of the first body part 111 away from the second body part 112, and the second channel section 11c can penetrate to the end of the second body part 112 away from the first body part 111.

[0110] Optionally, the first channel segment 11b and the second channel segment 11c may extend along a straight line or a curve; the first channel segment 11b and the second channel segment 11c are located on the same straight line or the first channel segment 11b and the second channel segment 11c are located on different straight lines.

[0111] In some embodiments, Figure 2 As shown, the first channel section 11b is aligned with the central axis of the mover body 22 (eg Figure 2 The minimum distance between the central axis m and the central axis of the mover body 22 is greater than the minimum distance between the second channel segment 11c and the central axis of the mover body 22, then the first channel segment 11b and the second channel segment 11c are staggered in the radial direction of the mover body 22, and the second channel segment 11c is closer to the central axis of the mover body 22 than the first channel segment 11b, and the second channel segment 11c is formed on the second body part 112, and the outer peripheral wall of the second body part 112 is located radially inside the outer peripheral wall of the first body part 111, so that the above-mentioned arrangement of the first channel segment 11b and the second channel segment 11c is convenient to adapt to the structure of the stator body 11 itself; especially when the radial distance between the outer peripheral wall of the first body part 111 and the outer peripheral wall of the second body part 112 is large, it is convenient to ensure that there is a suitable radial distance between the outer peripheral wall of the second body part 112 and the second channel segment 11c, which is convenient for the molding and use reliability of the second channel segment 11c.

[0112] Of course, the minimum distance between the first channel section 11 b and the central axis of the mover body 22 may also be equal to the minimum distance between the second channel section 11 c and the central axis of the mover body 22 .

[0113] It can be understood that the central axis of the mover body 22 extends along a preset direction and is the central axis of the shock absorber 100 and also the central axis of the stator body 11. Figure 2 As shown, the first channel section 11b is between the first guide member and the stator coil 12 to avoid interference between the first channel section 11b and the first guide hole 13, and at the same time, it is convenient to make the stator body 11 have sufficient thickness between the first channel section 11b and the first guide hole 13, so as to ensure that the stator body 11 has sufficient structural strength and service life. At this time, the first matching piece 31 can be arranged on the hole wall of the first guide hole 13, or the first matching piece 31 is arranged at an end of the first body portion 111 extending into the mover body 22 away from the first opening 22a.

[0114] In some embodiments, Figure 2As shown, taking the preset direction as the up and down direction and a part of the stator assembly 1 being located on the upper side of the mover assembly 2 as an example, the first channel segment 11b penetrates the top wall of the first main body portion 111 and / or the outer peripheral wall of the second main body portion 112, and the second channel segment 11c penetrates the outer peripheral wall of the second main body portion 112, then the first channel segment 11b and the second channel segment 11c are connected at intervals to facilitate the arrangement of the connecting line 33 and facilitate the processing of the first channel segment 11b and the second channel segment 11c.

[0115] For example, the second channel section 11c extends in the up-down direction to penetrate the top wall and the outer peripheral wall of the second main body portion 112, the first channel section 11b extends in the up-down direction to penetrate the bottom wall and the top wall of the first main body portion 111, or, the first channel section 11b penetrates the bottom wall of the first main body portion 111 and the outer peripheral wall of the second main body portion 112, or, the first channel section 11b penetrates the wall surface at the connection between the first main body portion 111 and the second main body portion 112 and the bottom wall of the first main body portion 111.

[0116] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, and / or can represent: existing alone, existing at the same time, and existing alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0117] In some embodiments, Figure 2 As shown, the mover magnet 21 includes a plurality of annular permanent magnets 211, and the plurality of annular permanent magnets 211 are arranged at intervals along a preset direction, i.e., the axial direction of the mover body 22 (for example, the plurality of annular permanent magnets 211 are arranged at equal intervals along the preset direction), so that two adjacent annular permanent magnets 211 are spaced a certain distance apart, which is beneficial for the stator coil 12 to dissipate heat through the gaps between adjacent annular permanent magnets 211, thereby avoiding overheating inside the shock absorber 100 and affecting the performance of the shock absorber 100 or the failure or burning of the displacement detection component 3 due to heat radiation, thereby improving the performance of the shock absorber 100.

[0118] In some embodiments, Figure 2 As shown, taking the case where the first opening 22a is formed on the upper side of the mover body 22 as an example, when the stator coil 12 is located as a whole in the mover body 22, the bottom end surface of the stator body 11 is located at the bottom of the mover body 22, that is, in the preset direction, the depth of the mover body 22 is greater than or equal to the height occupied by the stator coil 12, which is beneficial to increase the matching length of the stator coil 12 and the mover magnet 21 in the preset direction, thereby facilitating increasing the maximum thrust that the shock absorber 100 can output.

[0119] In some embodiments, Figure 4As shown, the stator body 11 defines a polygonal structure or a cylindrical structure having a second opening 11e, the stator coil 12 is arranged on the inner circumferential wall of the stator body 11, and the second opening 11e is located at one axial end of the stator body 11. The mover assembly 2 also includes a mover body 22, and the mover body 22 is arranged on the inner side of the stator coil 12. The mover magnetic steel 21 is arranged on the mover body 22, and the mover magnetic steel 21 can extend into the stator body 11 through the second opening 11e. The stator body 11 is sleeved outside the mover magnetic steel 21; at this time, the first gap 10c can be located between the end of the mover body 22 extending into the stator body 11 away from the second opening 11e and the stator body 11.

[0120] Therefore, the stator body 11 can play a certain protective role on the movable assembly 2, and the displacement detection assembly 3 will not occupy too much of the arrangement space provided for the stator coil 12 in the stator body 11, which is convenient for the arrangement of the stator coil 12, and there is no need to increase the length of the stator body 11 to provide arrangement space for the displacement detection assembly 3. At this time, the portion of the movable assembly 2 extending into the stator body 11 can be understood as the portion where the movable assembly 2 cooperates with the stator assembly 1.

[0121] For example, in Figure 4 In the example, taking the case where a part of the stator assembly 1 is located on the upper side of the mover assembly 2 as an example, the second opening 11e is located on the lower side of the stator body 11, and the mover assembly 2 extends into the stator body 11 through the second opening 11e. In the radial direction of the stator body 11, the stator coil 12 is arranged between the mover magnetic steel 21 and the stator body 11. Of course, the second opening 11e can also be arranged on the upper side of the stator body 11.

[0122] The stator body 11 is provided with a second guide post 11d, which is configured as a first guide member, the mover body 22 is formed with a second guide hole 21a, which is configured as a second guide member, and the second guide post 11d is accommodated in the second guide hole 21a and moves along the side wall of the second guide hole 21a, so as to guide the moving direction of the mover assembly 2 relative to the stator assembly 1, and improve the running stability of the shock absorber 100. Exemplarily, the first fitting member 31 can be arranged between the side wall of the second guide hole 21a and the outer peripheral wall of the second guide post 11d, the second fitting member 32 can be arranged at the second guide post 11d and located on one side of the stator body 11 in a preset direction, the second fitting member 32 can be arranged in the first gap 10c, a part of the first fitting member 31 is arranged in the first gap 10c, and a part of the first fitting member 31 is arranged in the second gap 10d between the second guide post 11d and the second guide hole 21a.

[0123] In some embodiments, Figure 4-Figure 5As shown, a fourth mounting surface 21b is formed on the mover body 22, a fifth mounting surface 11h is formed on the second guide column 11d, the fourth mounting surface 21b and the fifth mounting surface 11h are arranged at intervals, the second fitting member 32 is arranged on the fourth mounting surface 21b, and the first fitting member 31 is arranged on the fifth mounting surface 11h, so that the first fitting member 31 and the second fitting member 32 can be reliably matched, and the accuracy of the first fitting member 31 and the second fitting member 32 in detecting the displacement of the mover assembly 2 relative to the stator assembly 1 is ensured. In addition, the first fitting member 31 and the second fitting member 32 can be reliably matched, and the first fitting member 31 and the second fitting member 32 do not occupy the arrangement space of the stator coil 12, so as to avoid affecting the thrust of the shock absorber 100 due to the reduction of the arrangement space of the stator coil 12, and at the same time, the arrangement mode of the displacement detection assembly 3 is diversified to adapt to shock absorbers 100 with different structures, thereby improving the applicability of the shock absorber 100.

[0124] For example, in Figure 4 In the example, the second opening 11e is located at the lower side of the stator body 11, the movable assembly 2 can extend into the stator body 11 through the second opening 11e, the movable body 22 is formed with a second guide hole 21a, and a second guide column 11d is formed on the top wall of the stator body 11, the second guide column 11d is slidingly matched with the side wall of the second guide hole 21a, the fourth mounting surface 21b is the end surface of the movable body 22 extending into the stator body 11 away from the second opening 11e, the fifth mounting surface 11h is the outer peripheral wall of the second guide column 11d, the second mating piece 32 is spaced apart from the hole wall of the second guide hole 21a, and the second mating piece 32 does not affect the sliding match between the second guide column 11d and the second guide hole 21a, so as to reasonably utilize the space between the second guide column 11d and the second guide hole 21a under the premise of ensuring the stable matching of the movable assembly 2 and the stator assembly 1.

[0125] In other embodiments, a fourth mounting surface 21b is formed on the mover body 22, a sixth mounting surface 11j is formed on the inner circumferential wall of the stator body 11, the first mounting surface 11g and the sixth mounting surface 11j are spaced apart, the second mating piece 32 is disposed on the fourth mounting surface 21b, the first mating piece 31 is disposed on the sixth mounting surface 11j, and the first mating piece 31 is mated with the second mating piece 32.

[0126] It should be noted that the second fitting member 32 is disposed on the inner peripheral wall of the stator body 11, and the second fitting member 32 may be directly or indirectly disposed on the inner peripheral wall of the stator body 11. For example, the second fitting member 32 may be disposed on the inner peripheral wall of the stator body 11 or the second fitting member 32 may be indirectly disposed on the inner peripheral wall of the stator coil 12.

[0127] In some embodiments, Figure 5As shown, the outer peripheral wall of the second guide column 11d is formed with a second mounting groove 11f, and the side groove wall of the second mounting groove 11f away from the fourth mounting surface 21b forms a fifth mounting surface 11h, and the first mating piece 31 is installed in the second mounting groove 11f, so that the second guide column 11d frees up a suitable installation space for the first mating piece 31, which is convenient for realizing that the first mating piece 31 and the second mating piece 32 have a reasonable distance in a direction perpendicular to the preset direction, avoiding interference between the first mating piece 31 and the second mating piece 32 when they slide and cooperate with the first guide hole 13 along the preset direction with the first guide column 23, thereby facilitating the setting of the second mating piece 32 without changing the volume of the original stator coil 12, and without affecting the thrust of the shock absorber 100, and at the same time making the internal structure of the shock absorber 100 more compact.

[0128] For example, in Figure 4 and Figure 5 In the example, the first mating piece 31 is the detected part, such as a sensor grating, and the second mating piece 32 is the sensor body. The outer peripheral wall of the second guide column 11d is formed with a second mounting groove 11f, and the first mating piece 31 is arranged in the second mounting groove 11f. The first mating piece 31 and the second mating piece 32 are arranged radially opposite to each other.

[0129] In some embodiments, Figure 2 As shown, the shock absorber 100 also includes a first buffer 4a, which is located in the first gap 10c and is provided on the mover body 22, so as to limit the moving range of the mover assembly 2, and reduce the collision between the mover body 22 and the stator body 11, and reduce noise. The first buffer 4a is formed with an avoidance groove 4c for accommodating the first matching member 31, so that when the mover assembly 2 is located at the upper jump position limit, the first matching member 31 can be located in the avoidance groove 4c to avoid damaging the displacement detection assembly 3, and at the same time, it is beneficial to increase the moving length of the mover assembly 2 relative to the stator assembly 1, so as to extend the moving stroke of the mover assembly 2.

[0130] In some other embodiments, the stator body 11 defines a polygonal structure or a cylindrical structure having a second opening 11e, the stator coil 12 is disposed on the inner circumferential wall of the stator body 11, the first mating piece 31 is disposed on the inner circumferential wall of the stator body 11 and the first mating piece 31 is located on one side of the stator body 11 in a preset direction (for example, the first mating piece 31 is located on a side of the stator body 11 away from the second opening 11e in the preset direction); the mover assembly 2 also includes a mover body 22, which is disposed on the stator coil 12 On the inner side, the mover magnet 21 is arranged on the mover body 22, and the second matching piece 32 is arranged on the mover body 22, so as to ensure that the first matching piece 31 can be reliably matched with the second matching piece 32, and the first matching piece 31 and the second matching piece 32 do not occupy the arrangement space of the stator coil 12, so as to avoid affecting the thrust of the shock absorber 100 due to the reduction of the arrangement space of the stator coil 12. At the same time, the arrangement mode of the displacement detection component 3 is diversified to adapt to shock absorbers 100 of different structures and improve the applicability of the shock absorber 100. At this time, the stator assembly 1 and the mover assembly 2 can be matched without the guidance of the first guide member and the second guide member, or the stator assembly 1 and the mover assembly 2 can be matched through the guidance of the first guide member and the second guide member.

[0131] Further, the inner wall of the stator body 11 is provided with a second guide column 11d, the mover magnet 21 is formed with a second guide hole 21a, and the second guide column 11d extends into the second guide hole 21a to guide the moving direction of the mover assembly 2 relative to the stator assembly 1, and the second guide column 11d extends into the second guide hole 21a to guide the moving direction of the mover assembly 2 relative to the stator assembly 1, thereby improving the running stability of the shock absorber 100. In some embodiments, the displacement detection assembly 3 further has a connecting wire 33, the connecting wire 33 is electrically connected to the first matching member 31, and the stator body 11 is formed with a third wiring channel, and the connecting wire 33 is guided to the outside of the stator body 11 through the third wiring channel.

[0132] It can be seen that the connecting wire 33 can pass through the third wiring channel in the stator body 11 to connect the first matching piece 31 and the suspension controller, which is convenient for the arrangement of the connecting wire 33, and the connecting wire 33 and the first matching piece 31 are kept relatively still with the stator body 11, so as to avoid the internal components of the shock absorber 100 (such as the moving magnet 21) from moving and damaging the connecting wire 33, so as to protect the connecting wire 33 and make the arrangement of the shock absorber 100 wiring harness simpler and more reliable. Exemplarily, the displacement detection component 3 is a grating displacement detection component 3, the first matching piece 31 is a grating sensor, and the second matching piece 32 is a grating scale; or, the displacement detection component 3 is a resistive displacement detection component 3, the first matching piece 31 is a resistive sensor or a current sensor, and the second matching piece 32 is a resistive scale.

[0133] For example, the stator body 11 is connected to the vehicle body, the movable magnet 21 is connected to the wheel, and a second opening 11e is formed at the lower end of the stator body 11. The movable magnet 21 extends into the interior of the stator body 11 through the second opening 11e. The inner circumferential wall of the stator body 11 is provided with a first matching piece 31. The stator body 11 is formed with a third wiring channel, and the third wiring channel can extend to the top of the stator body 11. One end of the connecting line 33 is connected to the first matching piece 31, and the other end of the connecting line 33 passes through the top of the stator body 11 through the third wiring channel to be connected to the vehicle wiring harness. The vehicle wiring harness is connected to the suspension controller, so that the displacement detection component 3 converts the displacement of the movable magnet 21 relative to the stator body 11 into an electrical signal and transmits it to the suspension controller through the connecting line 33, so that the suspension controller obtains the displacement change of the vehicle shock absorber 100 and obtains the height posture of the whole vehicle. At the same time, the suspension controller performs comprehensive analysis and processing based on the signals of other sensors (such as acceleration sensors, etc.) to adjust the vehicle body posture to ensure that the vehicle is traveling in a suitable posture.

[0134] Of course, in other examples, the stator body 11 is connected to the wheel, the mover magnet 21 is connected to the vehicle body, a second opening 11e is formed at the upper end of the stator body 11, the mover magnet 21 extends into the interior of the stator body 11 through the second opening 11e, the inner peripheral wall of the stator body 11 is provided with a first matching piece 31, a third wiring channel is formed in the stator body 11, and the third wiring channel can extend to the bottom end of the stator body 11. Of course, in other embodiments, the third wiring channel can also extend to the outer peripheral wall that passes through the stator body 11.

[0135] In some embodiments, the displacement detection component 3 further has a connecting wire 33, which is electrically connected to the second matching piece 32, and the mover magnet 21 forms a fourth wiring channel, and the connecting wire 33 is guided to an end of the mover magnet 21 away from the stator body 11 through the fourth wiring channel.

[0136] It can be seen that the connecting wire 33 passes through the fourth wiring channel on the mover magnetic steel 21 to connect the second matching piece 32 and the suspension controller, which facilitates the arrangement of the connecting wire 33, and the connecting wire 33 and the second matching piece 32 are relatively stationary with the stator body 11, so as to avoid the relative movement of the internal components of the shock absorber 100 to damage the connecting wire 33, so as to protect the connecting wire 33 and make the arrangement of the internal wiring harness of the shock absorber 100 more reliable. In addition, the fourth wiring channel can guide the connecting wire 33 to the end of the mover magnetic steel 21 away from the stator body 11, so that the outlet position of the connecting wire 33 is far away from the stator body 11, and will not limit the travel of the mover assembly 2 relative to the stator assembly 1. In the above technical solution, exemplarily, when the displacement detection assembly 3 is a grating displacement detection assembly, the first matching piece 31 is a grating scale bar, and the second matching piece 32 is a grating sensor; or, when the displacement detection assembly 3 is a resistive displacement detection assembly, the first matching piece 31 is a resistive scale bar, and the second matching piece 32 is a resistive sensor or a current sensor.

[0137] In some embodiments, the first matching component 31 is a sensor body, and the second matching component 32 is a sensor grating or a sensor magnetic strip. The sensor body cooperates with the sensor grating or the sensor magnetic strip to ensure the accuracy of the measurement of the displacement detection component 3.

[0138] In some embodiments, Figure 1 and Figure 2 As shown, the shock absorber 100 also includes a first support member 10a and a second support member 10b, which are respectively arranged on the upper and lower sides of the shock absorber 100, the first support member 10a is connected to the stator assembly 1, and the second support member 10b is connected to the mover assembly 2. The first support member 10a and the second support member 10b facilitate the installation of the shock absorber 100 on the vehicle. At the same time, the first support member 10a and the second support member 10b are respectively connected to the vehicle body and the wheel, so that the shock absorber 100 will support the weight of the vehicle, absorb the vibration transmitted from the ground to the vehicle body, and improve the driving comfort of the vehicle.

[0139] For example, in Figure 1 In the example, the first support member 10a is located on the upper side of the shock absorber 100 and is connected to the stator body 11 through a bushing bearing. The first support member 10a is provided with a plurality of fixing members (such as bolts, etc.) to connect the stator assembly 1 and the vehicle body. The second support member 10b is located on the lower side of the shock absorber 100 and is fixedly connected to the lower end surface of the movable subassembly 2 (such as bolt connection, etc.). The second support member 10b is formed with a fork arm to connect the movable subassembly 2 and the wheel, thereby facilitating the installation of the shock absorber 100.

[0140] A vehicle according to an embodiment of the second aspect of the present invention comprises a body, a wheel and a shock absorber 100 according to the embodiment of the first aspect of the present invention, wherein a stator assembly 1 is connected to one of the body and the wheel, and a mover assembly 2 is connected to the other of the body and the wheel.

[0141] The vehicle according to the embodiment of the present invention improves the comfort of the vehicle by adopting the shock absorber 100 described above.

[0142] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0143] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0144] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 present invention. In this specification, the schematic representation of the above terms does 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.

[0145] In the present invention, 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.

Claims

1. A shock absorber, characterized in that: include: A stator assembly, the stator assembly being adapted to be connected to one of a vehicle body and a wheel, and the stator assembly comprising a stator body and a stator coil disposed on the stator body; A mover assembly, the mover assembly is suitable for being connected to the other of the vehicle body and the wheel, and the mover assembly is movably matched with the stator assembly along a preset direction, and the mover assembly includes a mover magnetic steel; A displacement detection component, the displacement detection component includes a first matching piece and a second matching piece, the second matching piece cooperates with the first matching piece so that the displacement detection component is used to detect the displacement of the movable component relative to the stator component, the first matching piece is fixedly arranged on the stator body, and the second matching piece is fixedly arranged on the movable component. In the preset direction, there is a first gap between the stator body and the mover assembly, and at least a portion of the first matching piece and the second matching piece is located in the first gap; In a direction perpendicular to the preset direction, a second gap is provided between the stator body and the mover assembly, at least a portion of the structure of one of the first matching piece and the second matching piece is located in the first gap, and at least a portion of the structure of the other is located in the second gap; The mover assembly further comprises a mover body, the mover body defines a polygonal structure or a cylindrical structure, the mover magnetic steel is arranged on the inner circumferential wall of the mover body, and at least part of the structure of the stator assembly is located in the mover body; In a preset direction, an end surface of the stator assembly close to the bottom wall of the mover body is spaced apart from the bottom wall of the mover body to form the first gap, and an installation surface of the first mating piece is formed on the end surface of the stator assembly close to the bottom wall of the mover body; The second gap is formed in a direction perpendicular to the preset direction; The movable subassembly is formed with an avoidance groove for accommodating the first matching member; The mover body is formed with a first mounting groove for mounting the second matching piece.

2. The shock absorber according to claim 1, characterized in that: The vibration absorber further comprises: a first buffer, the first buffer being arranged on the bottom wall of the mover body, the end surface of the stator body close to the bottom wall of the mover body comprising a first portion and a second portion, the first portion being adapted to contact with the first buffer to limit the movement of the mover assembly, and the second portion being formed as a mounting surface of the first mating member; In a preset direction, the distance between the first portion and the first buffer is less than or equal to the distance between the first matching member and the corresponding bottom wall of the mover body.

3. The shock absorber according to claim 2, characterized in that: The first buffer is formed with the avoidance groove, in a preset direction, the projection of the first matching piece is located in the avoidance groove, and the distance between the bottom wall of the avoidance groove and the first matching piece is greater than or equal to the distance between the first buffer and the first part.

4. The shock absorber according to claim 3, characterized in that The stator assembly includes a first guide member, and the mover assembly includes a second guide member, wherein the first guide member and the second guide member are cooperatively arranged to enable the mover assembly to move along a preset trajectory relative to the stator assembly; The first matching piece is arranged on the first guide piece, and the second matching piece is arranged on the second guide piece. In a direction perpendicular to the preset direction, the second gap is formed between a part of the second guide piece and a part of the first guide piece.

5. The shock absorber according to claim 4, characterized in that A first guide column is arranged on the movable body, and the first guide column constitutes the second guide member. A first guide hole is formed on the stator body, and the first guide hole constitutes the first guide member. The first guide column is accommodated in the first guide hole. The first guide column includes a contact portion and a non-contact portion. The contact portion moves along the side wall of the first guide hole, and the non-contact portion is spaced apart from the first guide hole to form the second gap.

6. The shock absorber according to claim 5, characterized in that The first guide column is provided with a first mounting groove to form the non-contact portion, a groove wall on one side of the first mounting groove away from the guide hole forms a second mounting surface, and the second matching piece is arranged on the second mounting surface.

7. The vibration absorber according to claim 1, characterized in that: The mover body has a first opening, and at least a portion of the stator assembly is suitable for being exposed from the mover body through the first opening.

8. The shock absorber according to claim 7, characterized in that It also includes a first mounting seat, a second mounting seat and a vibration-damping spring. The first mounting seat is fixed to the stator assembly, the second mounting seat is fixed to the mover assembly, and the vibration-damping spring is stopped between the first mounting seat and the second mounting seat.

9. The vibration absorber according to claim 8, characterized in that It also includes a protective member, which is covered on the outside of the shock absorbing spring and fixed to the first mounting seat. The bottom end of the protective member is located below the second mounting seat, and the bottom end of the protective member is suitable for abutting against the second mounting seat to limit the maximum displacement of the shock absorber.

10. The vibration absorber according to claim 9, characterized in that Also includes: The second buffer member is arranged on a side of the bottom end of the protective member facing the second mounting seat.

11. The shock absorber according to claim 1, characterized in that The displacement detection component also has a connecting line, The connecting wire is electrically connected to the first matching piece, and the stator body forms a first wiring channel, which extends to an end of the stator body away from the mover magnetic steel.

12. The shock absorber according to claim 11, characterized in that The stator body includes a first body portion and a second body portion, the stator coil is arranged on the first body portion, at least a portion of the second body portion is suitable for being located outside the mover assembly and forming a body connection end, the first wiring channel includes a first channel section and a second channel section that are connected and arranged, the first channel section is formed on the first body portion, and the second channel section is formed on the second body portion.

13. The shock absorber according to claim 12, characterized in that A minimum distance between the first channel section and the central axis of the mover assembly is greater than a minimum distance between the second channel section and the central axis of the mover assembly.

14. The shock absorber according to claim 13, characterized in that The first channel segment is between a first guide of the stator assembly and the stator coil.

15. The vibration absorber according to claim 1, characterized in that The displacement detection component also has a connecting line, which is electrically connected to the second matching piece. The movable component forms a second wiring channel, and the second wiring channel extends to an end of the movable component facing away from the stator component.

16. The shock absorber according to claim 1, characterized in that The first matching component is a sensor body, and the second matching component is a sensor grating or a sensor magnetic strip.

17. A vehicle, characterized in that: The invention comprises a vehicle body, a wheel and the shock absorber according to any one of claims 1 to 16, wherein the stator assembly is connected to one of the vehicle body and the wheel, and the mover assembly is connected to the other of the vehicle body and the wheel.

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