Electromagnetic shock absorber and vehicle

Abstract

The utility model discloses an electromagnetic shock absorber and a vehicle, and the electromagnetic shock absorber comprises a mover housing, which is provided with a moving space; the stator movable rod is arranged in the movable space in a penetrating mode, at least one of the stator movable rod and the rotor shell is provided with a winding coil, and the winding coil is located in the movable space; and the cooling structure is connected with the rotor shell, and the cooling structure is used for carrying out heat dissipation on the activity space. According to the electromagnetic shock absorber, heat dissipation can be carried out on the moving space in the working process of the electromagnetic shock absorber, namely, heat dissipation is carried out on the winding coil, so that the temperature of the winding coil is reduced, the power consumption of the electromagnetic shock absorber is reduced, and the reduction of the temperature of the winding coil can avoid the reduction of the output force of the electromagnetic shock absorber; and the damping acting force requirement of the vehicle is met.

Description

Technical Field

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

[0002] In the related art, during the operation of the electromagnetic shock absorber, the winding coil continuously generates heat, which causes the temperature inside the rotor housing to rise. However, the temperature rise will increase the power consumption of the electromagnetic shock absorber. At the same time, the temperature increase of the winding coil causes its resistance to increase and the working current to decrease, that is, the output force of the electromagnetic shock absorber decreases, and thus cannot meet the vehicle's vibration reduction force requirements. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an electromagnetic shock absorber, which can reduce the power consumption of the electromagnetic shock absorber and avoid the reduction of the output force of the electromagnetic shock absorber, thereby meeting the shock absorption force requirements of the vehicle.

[0004] According to the electromagnetic vibration absorber of the embodiment of the utility model, it includes: a mover housing, the mover housing forms an activity space; a stator movable rod, the stator movable rod is inserted into the activity space, at least one of the stator movable rod and the mover housing is provided with a winding coil, and the winding coil is located in the activity space; a cooling structure, the cooling structure is connected to the mover housing, and the cooling structure is used to dissipate heat from the activity space.

[0005] According to the electromagnetic shock absorber of the embodiment of the utility model, by providing a cooling structure, the activity space can be cooled during the operation of the electromagnetic shock absorber, that is, the winding coil can be cooled, thereby reducing the temperature of the winding coil and reducing the power consumption of the electromagnetic shock absorber. The reduction in the temperature of the winding coil can avoid a reduction in the output force of the electromagnetic shock absorber, thereby meeting the vibration reduction force requirements of the vehicle.

[0006] According to the electromagnetic vibration absorber of some embodiments of the utility model, the cooling structure is constructed as a rotating blade, the rotating blade is rotatably matched with the movable housing in the circumferential direction and relatively fixed in the axial direction, and the rotating blade is rotatably sleeved outside the stator movable rod.

[0007] According to the electromagnetic vibration absorber of some embodiments of the present invention, the stator movable rod includes a main body and a connecting part, the connecting part is axially connected to the main body, the outer diameter of the main body is larger than the outer diameter of the connecting part, and the rotating blade is sleeved outside the connecting part.

[0008] According to the electromagnetic vibration absorber of some embodiments of the present invention, the winding coil is wound around the outer peripheral wall of the main body.

[0009] According to the electromagnetic vibration absorber of some embodiments of the utility model, the rotating blade is provided with a ball, and the outer peripheral wall of the connecting part is provided with a spiral groove, and the ball is suitable for driving the rotating blade to rotate when sliding along the spiral groove.

[0010] According to the electromagnetic vibration absorber of some embodiments of the utility model, the activity space includes a first activity space and a second activity space, the first activity space and the second activity space are respectively located on both sides of the axial direction of the main body, and the main body is provided with a ventilation duct, and the ventilation duct is connected between the first activity space and the second activity space.

[0011] According to the electromagnetic vibration absorber of some embodiments of the present invention, the ventilation channel extends along the axial direction of the main body.

[0012] According to the electromagnetic vibration absorber of some embodiments of the present invention, the rotating blades are located in the first active space, and in the axial direction of the main body, the rotating blades are spaced apart and distributed from the main body.

[0013] According to the electromagnetic vibration absorber of some embodiments of the present invention, the mover housing includes an outer shell and a mounting shell, the mounting shell is connected to the outer shell to define the first activity space, and the rotating blade is rotatably mounted on the mounting shell.

[0014] According to the electromagnetic vibration absorber of some embodiments of the present invention, the outer diameter of the mounting shell is less than or equal to the outer diameter of the outer shell.

[0015] The utility model also provides a vehicle.

[0016] A vehicle according to an embodiment of the utility model comprises the electromagnetic shock absorber described in any one of the above embodiments.

[0017] The advantages of the vehicle and the above-mentioned electromagnetic shock absorber over the prior art are the same and will not be described in detail here.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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:

[0020] Figure 1 is a schematic diagram of an electromagnetic vibration absorber according to an embodiment of the utility model;

[0021] Figure 2 yes Figure 1An axial cross-sectional view of the electromagnetic vibration absorber shown in ;

[0022] Figure 3 yes Figure 2 A partial enlarged view of the cooling structure shown in FIG.

[0023] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 is a schematic diagram of a vehicle according to an embodiment of the utility model.

[0025] Reference numerals

[0026] Vehicle 1000,

[0027] Electromagnetic vibration absorber 100,

[0028] Stator movable rod 10, main body 11, ventilation channel 111, connecting part 12, spiral slide groove 121,

[0029] The movable housing 20, the outer shell 21, the mounting shell 22,

[0030] Activity space 201, first activity space 2011, second activity space 2012,

[0031] Cooling structure 30, rotating blades 31, balls 311,

[0032] Winding coil 41, permanent magnet group 42,

[0033] Shock absorber tower top 51, dust cover 52, spring upper base 53, outer protective cover 54,

[0034] Connecting flange 55, first fixing bolt 56, second fixing bolt 57,

[0035] Coil spring 60,

[0036] Spring lower base 71, lower jump limit buffer block 72, position sensor grating 73, position sensor 74,

[0037] Upward jump limit shock absorbing block 75, sensor mounting base 76, shock absorber bracket 77, connecting bolt 78. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0040] Reference below Figure 1-Figure 5 An electromagnetic vibration absorber 100 according to an embodiment of the present invention is described.

[0041] like Figure 2 As shown, the electromagnetic vibration absorber 100 according to the embodiment of the utility model includes: a mover housing 20 , a stator movable rod 10 and a cooling structure 30 .

[0042] Specifically, the movable space 201 is formed in the movable housing 20, the stator movable rod 10 is inserted into the movable space 201, at least one of the stator movable rod 10 and the movable housing 20 is provided with a winding coil 41, and the winding coil 41 is located in the movable space 201, the cooling structure 30 is connected to the movable housing 20, and the cooling structure 30 is used to dissipate heat from the movable space 201.

[0043] Therefore, by providing the cooling structure 30, the activity space 201 can be cooled during the operation of the electromagnetic shock absorber 100, that is, the winding coil 41 can be cooled, thereby reducing the temperature of the winding coil 41 and reducing the power consumption of the electromagnetic shock absorber 100. The reduction in the temperature of the winding coil 41 can avoid a reduction in the output force of the electromagnetic shock absorber 100, thereby meeting the shock absorbing force requirements of the vehicle 1000.

[0044] For example Figure 2 As shown, the electromagnetic vibration absorber 100 includes a mover housing 20 , a stator movable rod 10 and a cooling structure 30 .

[0045] Specifically, Figure 2 As shown, an activity space 201 is formed in the movable housing 20, and the stator movable rod 10 is inserted into the activity space 201, that is, the movable housing 20 is sleeved on the stator movable rod 10, and the stator movable rod 10 and the movable housing 20 can move relative to each other in the axial direction, wherein at least one of the outer peripheral wall of the stator movable rod 10 and the inner peripheral wall of the movable housing 20 is provided with a winding coil 41.

[0046] For example, the outer circumferential wall of the stator movable rod 10 and the inner circumferential wall of the movable housing 20 are both provided with winding coils 41, or one of the outer circumferential wall of the stator movable rod 10 and the inner circumferential wall of the movable housing 20 is provided with a winding coil 41 and the other is provided with a permanent magnet group 42, which is not limited here.

[0047] For example, the winding coil 41 is wound around the outer peripheral wall of the stator movable rod 10, and the permanent magnet group 42 is installed on the inner peripheral wall of the movable housing 20, or the winding coil 41 is wound around the inner peripheral wall of the movable housing 20, and the permanent magnet group 42 is installed on the outer peripheral wall of the stator movable rod 10.

[0048] Among them, the winding coil 41 and the permanent magnet group 42 are arranged opposite to each other in the radial direction of the stator movable rod 10, and there is a uniform matching gap between the winding coil 41 and the permanent magnet group 42. It should be noted that the electromagnetic shock absorber 100 can be applied to a variety of equipment that requires vibration reduction, for example, the electromagnetic shock absorber 100 can be applied to the active suspension system of the vehicle 1000, and when the electromagnetic shock absorber 100 is applied to the vehicle 1000, the axial upper end of the stator movable rod 10 is connected to the vehicle body, the axial lower end of the mover housing 20 is connected to the wheel, and the winding coil 41 generates an electromagnetic field after being energized. After being energized, the magnetic field formed by the winding coil 41 interacts with the magnetic field of the permanent magnet group 42 to generate an action force and a reaction force, that is, the thrust of the shock absorber, and the magnetic field force gives the mover housing 20 an action force in an approximate up and down direction (such as the axial direction of 2 in FIG. 2), so that the mover housing 20 and the stator movable rod 10 can perform linear reciprocating motion along the axial direction.

[0049] It is worth noting that the direction of the magnetic field is radial with the interface of the winding coil 41 as the origin, the magnitude of the magnetic field can be controlled by the magnitude of the input current, and the positive and negative directions of the magnetic field can be controlled by adjusting the positive and negative current.

[0050] Therefore, the vibration reduction and buffering effect on the wheel can be achieved through the relative movement of the mover housing 20 and the stator movable rod 10 in the axial direction, so as to meet the vibration reduction force requirement of the vehicle 1000.

[0051] It should be noted that during the operation of the electromagnetic shock absorber 100, the winding coil 41 is constantly heating up, and temperature is a key indicator that affects the resistance of the winding coil 41. When the temperature rises, the power consumption of the electromagnetic shock absorber 100 increases, and the resistance of the winding coil 41 increases, the working current decreases, and the magnetic field strength decreases, resulting in a decrease in the output force of the electromagnetic shock absorber 100, thereby failing to meet the shock absorbing force requirements of the vehicle 1000.

[0052] Therefore, in the utility model, the cooling structure 30 is provided to dissipate the heat of the activity space 201, that is, the heat is dissipated to the components in the activity space 201, such as the winding coil 41, so as to reduce the temperature of the winding coil 41 and reduce the power consumption of the electromagnetic shock absorber 100. The reduction in the temperature of the winding coil 41 can avoid the increase in the resistance of the winding coil 41, thereby avoiding the reduction in the working current of the winding coil 41. In this way, it can be ensured that the winding coil 41 generates a magnetic field of sufficient strength, thereby avoiding the reduction in the output force of the electromagnetic shock absorber 100, so as to meet the vibration reduction force requirements of the vehicle 1000.

[0053] According to the electromagnetic shock absorber 100 of the embodiment of the utility model, by providing a cooling structure 30, the activity space 201 can be cooled during the operation of the electromagnetic shock absorber 100, that is, the winding coil 41 can be cooled, thereby reducing the temperature of the winding coil 41 to reduce the power consumption of the electromagnetic shock absorber 100, and the reduction in the temperature of the winding coil 41 can avoid a reduction in the output force of the electromagnetic shock absorber 100, thereby meeting the vibration reduction force requirements of the vehicle 1000.

[0054] In some embodiments, the cooling structure 30 is configured as a rotating blade 31 , which is rotatably matched with the rotor housing 20 in the circumferential direction and relatively fixed in the axial direction, and the rotating blade 31 is rotatably sleeved outside the stator movable rod 10 .

[0055] Thus, the rotating blades 31 are fixed to the rotor housing 20 and can rotate circumferentially relative to the rotor housing 20, so that when the rotor housing 20 moves axially relative to the stator movable rod 10, the rotating blades 31 can rotate relative to the stator movable rod 10 while moving axially with the stator movable rod 10.

[0056] For example, the rotating blade 31 and the stator movable rod 10 can be matched in a ball screw manner to ensure that the rotating blade 31 can move axially with the stator movable rod 10 and rotate relative to the stator movable rod 10. Of course, the rotating blade 31 and the stator movable rod 10 can also be matched in other ways that convert linear motion into curved motion, which is not limited here.

[0057] Therefore, under the traction of the force of the axial movement of the rotor housing 20, the rotating blade 31 can perform rotational motion while moving axially, that is, the rotating blade 31 finally performs a spiral up / down motion, thereby driving the air flow in the activity space 201, thereby playing the effect of reducing the temperature in the activity space 201, that is, reducing the operating temperature of the components (such as the winding coil 41) in the activity space 201.

[0058] In this way, on the one hand, the heat dissipation of the electromagnetic shock absorber 100 can be achieved to avoid the reduction of the output force of the electromagnetic shock absorber 100, thereby meeting the vibration reduction force requirements of the vehicle 1000; on the other hand, the rotation of the rotating blades 31 does not require additional electric energy input, and the rotation of the rotating blades 31 can be driven by the axial movement of the mover housing 20 during the movement of the vehicle 1000, thereby making full use of the kinetic energy generated by the electromagnetic shock absorber 100 when it is working.

[0059] In some embodiments, Figure 2 As shown, the stator movable rod 10 includes a main body portion 11 and a connecting portion 12 .

[0060] The connecting portion 12 is connected to the main body 11 along the axial direction. The outer diameter of the main body 11 is larger than the outer diameter of the connecting portion 12 . The rotating blades 31 are sleeved outside the connecting portion 12 .

[0061] Therefore, by setting the outer diameter of the connecting portion 12 to be smaller than the outer diameter of the main body 11, so that the space between the connecting portion 12 and the movable housing 20 is larger, the difficulty of installing the rotating blade 31 is reduced, and the rotating blade 31 and the winding coil 41 are respectively fixed to the connecting portion 12 and the main body 11 for reasonable arrangement to avoid interference between the rotating blade 31 and the winding coil 41. At the same time, in the axial direction of the stator active rod 10, the winding coil 41 is opposite to the rotating blade 31. In this way, when the rotating blade 31 rotates, it can drive the air flow in the active space 201 to form an airflow blowing toward the winding coil 41, thereby quickly reducing the temperature of the winding coil 41.

[0062] In some embodiments, the winding coil 41 is wound around the outer peripheral wall of the main body 11, so that the connection stability between the winding coil 41 and the main body 11 can be enhanced, and it is convenient to save installation space and reduce the occupation of the activity space 201, making the structure of the electromagnetic shock absorber 100 more compact.

[0063] Furthermore, if Figure 3 and Figure 4 As shown, the rotating blade 31 is provided with a ball 311 , and the outer peripheral wall of the connecting portion 12 is provided with a spiral groove 121 . When the ball 311 slides along the spiral groove 121 , it is suitable for driving the rotating blade 31 to rotate.

[0064] In this way, the connection stability between the rotating blade 31 and the connecting part 12 can be enhanced to avoid the rotating blade 31 from being separated from the connecting part 12, and by arranging the ball 311 and the spiral groove 121, the rotating blade 31 and the connecting part 12 can be matched in the form of a ball 311 screw, so that when the movable housing 20 moves axially relative to the stator movable rod 10, the rotating blade 31 is pulled by the force of the axial movement of the movable housing 20. The rotating blade 31 can rotate while moving along the axial direction of the connecting part 12, that is, the rotating blade 31 finally makes a spiral up / down motion, thereby driving the air flow in the activity space 201, which has the effect of reducing the temperature in the activity space 201, that is, reducing the working temperature of the components (such as the winding coil 41) in the activity space 201.

[0065] In some embodiments, Figure 2 As shown, the activity space 201 includes a first activity space 2011 and a second activity space 2012, which are respectively located on both axial sides of the main body 11, and the main body 11 is provided with a ventilation channel 111, which is connected between the first activity space 2011 and the second activity space 2012.

[0066] It should be noted that, in the axial direction of the main body 11, the ventilation duct 111 is arranged at the part of the main body 11 that is not opposite to the connecting part 12, and the connecting part 12 can be located in the first active space 2011, that is, the rotating blade 31 is located in the first active space 2011, and the second active space 2012 can be provided with components such as the position sensor 74 and the position sensor grating 73. During the operation of the electromagnetic shock absorber 100, components such as the position sensor 74 and the position sensor grating 73 will be affected by the high temperature of the winding coil 41, thereby affecting its accuracy.

[0067] Therefore, by setting the ventilation duct 111, when the rotating blade 31 rotates, the air in the first activity space 2011 and the air in the second activity space 2012 can flow to each other through the ventilation duct 111, thereby facilitating the heat dissipation of components such as the position sensor 74 and the position sensor grating 73 in the second activity space 2012, so that they can be in a temperature-stable working environment.

[0068] Optionally, the ventilation hole 111 extends along the axial direction of the body 11. Thus, the ventilation hole 111 can directly connect the first activity space 2011 with the second activity space 2012, thereby increasing the mutual flow rate of the air in the first activity space 2011 and the air in the second activity space 2012.

[0069] Optionally, a plurality of ventilation channels 111 may be provided, and the plurality of ventilation channels 111 may be spaced apart and distributed in the radial direction and / or circumferential direction of the main body 11 to increase the air flow rate.

[0070] In some embodiments, Figure 3 As shown, the rotating blade 31 is located in the first active space 2011 , and in the axial direction of the main body 11 , the rotating blade 31 is spaced apart from the main body 11 .

[0071] As a result, when the rotating blade 31 rotates, the air in the first activity space 2011 and the air in the second activity space 2012 can flow to each other through the ventilation duct 111, thereby facilitating the heat dissipation of components such as the position sensor 74 and the position sensor grating 73 in the second activity space 2012, so that they can be in a temperature-stable working environment. At the same time, interference between the rotating blade 31 and the main body 11 can be avoided.

[0072] In some embodiments, Figure 2 As shown, the mover housing 20 includes an outer shell 21 and a mounting shell 22 . The mounting shell 22 is connected to the outer shell 21 to define a first activity space 2011 . The rotating blade 31 is rotatably mounted on the mounting shell 22 .

[0073] Thus, by providing the mounting shell 22, the mounting shell 22 and the outer shell 21 can jointly constitute the mover housing 20, and the rotating blade 31 can be rotatably mounted on the mounting shell 22, so that during actual assembly, the rotating blade 31 can be first mounted on the mounting shell 22, so that the mounting shell 22 can be used as a fixing bracket for the rotating blade 31, and then the mounting shell 22 is mounted on the outer shell 21 to jointly constitute the mover housing 20. In this way, the rotating blade 31 and the outer shell 21 can share the mounting shell 22, thereby facilitating the reduction of the difficulty of assembling the rotating blade 31.

[0074] The mounting shell 22 can be fixed to the outer shell 21 by a plurality of clips distributed radially, so as to reduce the difficulty of loading and unloading the mounting shell 22 and facilitate the maintenance of the rotating blade 31 by disassembling the mounting shell 22 at a later time.

[0075] Of course, the connection method between the mounting shell 22 and the outer shell 21 may also be plug-in or bolt-fitting, which is not limited here.

[0076] Optionally, the outer diameter of the mounting shell 22 is smaller than or equal to the outer diameter of the outer shell 21 .

[0077] It should be noted that in the electromagnetic damper 100 , the outer side of the mover housing 20 is sleeved with a coil spring 60 . Therefore, by setting the outer diameter of the mounting shell 22 to be smaller than or equal to the outer diameter of the outer shell 21 , interference between the mounting shell 22 and the coil spring 60 can be avoided.

[0078] Combine the following Figure 1-Figure 4 A specific embodiment of the electromagnetic shock absorber 100 of the utility model embodiment is described as being applied to an active suspension system of a vehicle 1000:

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

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

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

[0082] Among them, one of the outer circumferential wall of the stator movable rod 10 and the inner circumferential wall of the movable housing 20 is provided with a winding coil 41 and the other is provided with a permanent magnet group 42, for example, the winding coil 41 is wound around the outer circumferential wall of the stator movable rod 10, and the permanent magnet group 42 is installed on the inner circumferential wall of the movable housing 20, or the winding coil 41 is wound around the inner circumferential wall of the movable housing 20, and the permanent magnet group 42 is installed on the outer circumferential wall of the stator movable rod 10.

[0083] Among them, the winding coil 41 and the permanent magnet group 42 are arranged opposite to each other in the radial direction of the stator movable rod 10, and there is a uniform fitting gap between the winding coil 41 and the permanent magnet group 42. After the winding coil 41 is energized, an electromagnetic field is generated. After energization, the magnetic field formed by the winding coil 41 interacts with the magnetic field of the permanent magnet group 42 to generate an action force and a reaction force, that is, the thrust of the shock absorber. The magnetic field force gives the mover housing 20 a force in an approximate up and down direction (such as the axial direction of 2 in the figure), so that the mover housing 20 and the stator movable rod 10 can perform linear reciprocating motion along the axial direction.

[0084] The cooling structure 30 is constructed as a rotating blade 31, which is arranged on the rotor housing 20, and the cooling blade and the stator movable rod 10 are matched in a ball screw mechanism. During the operation of the vehicle 1000, the rotor housing 20 moves up and down, driving the rotating blade 31 to move up and down together. At the same time, since the rotating blade 31 and the stator movable rod 10 are a ball 311 screw matching structure, the rotating blade 31 is forced to rotate synchronously during the up and down movement under the traction of the up and down force of the rotor housing 20, so the rotating blade 31 finally makes a spiral up / down motion, and the rotation of the rotating blade 31 drives the flow of air inside the first movable space 2011.

[0085] At the same time, since the main body 11 is provided with a plurality of ventilation channels 111 running through the upper and lower parts, the first activity space 2011 and the second activity space 2012 can be connected. Driven by the rotating blades 31, the air inside the first activity space 2011 and the second activity space 2012 is exchanged with the outside world. The flow of air can bring out the heat generated inside the activity space 201 in time, which can effectively reduce the working temperature of the winding coil 41, make the resistance value of the winding coil 41 in a stable state, and ensure the normal output of the magnetic field force.

[0086] Among them, the size and installation position of the rotating blade 31 need to be designed and arranged in combination with the upper and lower limit spaces of the electromagnetic shock absorber 100 to ensure that when the electromagnetic shock absorber 100 moves up and down to the limit position, there will be no interference and collision with the rotating blade 31; in addition, this passive heat dissipation method does not require additional power input, and only the up and down movement of the mover housing 20 during the movement of the vehicle 1000 can drive the rotation of the rotating blade 31, and convert part of the potential energy of the up and down movement of the vehicle 1000 into the kinetic energy of the rotating blade 31, thereby improving the energy utilization of the system while reducing the internal temperature of the electromagnetic shock absorber 100 to ensure the normal operation of the electromagnetic shock absorber 100.

[0087] Furthermore, the spring upper base 53 is bonded together with one end of the shock absorber tower top 51 facing the mover housing 20, and the outer protective cover 54 passes through the outer protective cover 54 through the second radially distributed fixing bolts 57 to be connected to the spring upper base 53 to enhance the connection stability between the two, and a spring lower base 71 is also sleeved on the mover housing 20, and the coil spring 60 is sleeved on the mover housing 20 and located between the mover housing 20 and the outer protective cover 54, so that the coil spring 60 can be protected by the outer protective cover 54 and the damage of the coil spring 60 can be reduced.

[0088] Alternatively, if Figure 1 As shown, a square hole is opened in the middle of the outer protective cover 54 to facilitate air flow and heat dissipation of the electromagnetic shock absorber 100, wherein the square hole can be covered with multiple layers of annular filter elements to prevent external dust or muddy water from entering the electromagnetic shock absorber 100 and causing damage to the working components.

[0089] Among them, one end of the coil spring 60 (such as Figure 2 The upper end of the coil spring 60 (as shown in FIG. Figure 2 The lower end of the spring 1000 is against the lower spring base 71, and the upper spring base 53 and / or the lower spring base 71 are provided with a rubber pad at one end close to the coil spring 60 to reduce the wear and abnormal noise of the coil spring 60 during movement. In this way, during the movement of the vehicle 1000, the electromagnetic shock absorber 100 can jump up and down to compress the coil spring 60 to achieve the function of reducing the impact force of the vehicle 1000 on the ground together with the internal components of the electromagnetic shock absorber 100.

[0090] A limit-down shock-absorbing block 72 is provided at the lower end of the outer protective cover 54. The limit-down shock-absorbing block 72 is used for limiting shock absorption when the electromagnetic shock absorber 100 reaches a limit of downward jump when the wheel jumps up or falls into a pothole.

[0091] At the same time, the sensor mounting base 76 and the upper jump limit buffer block 75 are also fixed as a whole with the lower end of the movable housing 20 through the connecting bolts 78; wherein the position sensor 74 is installed on the sensor mounting base 76, and the position sensor grating 73 is installed on the inner wall of the center hole at the lower end of the stator movable rod 10, and a cylindrical groove of a certain depth is opened at the bottom of the stator movable rod 10 to accommodate the axial movement of the position sensor 74, and the position sensor 74 cooperates with the position sensor grating 73 fixed on the inner wall of the center hole at the bottom of the stator movable rod 10.

[0092] The electromagnetic absorber 100 is arranged in the vertical direction ( Figure 2During the jumping process (in the axial direction), the position sensor 74 moves up and down synchronously with the sensor mounting base 76. The position sensor 74 can identify the jumping condition of the wheel through the change of the grating position of the position sensor grating 73, and transmit the parameters to the ECU in time, so that the ECU can give corresponding adjustment instructions in time based on other sensor parameters. The maximum compression height of the upper jumping limit shock-absorbing block 75 is higher than the upper end of the sensor mounting base 76, ensuring that the bottom of the stator movable rod 10 will not contact and collide with the sensor mounting base 76 after the shock-absorbing block is fully compressed at the upper jumping limit, thereby avoiding damage to the stator movable rod 10 or other components.

[0093] During the up and down bouncing of the electromagnetic shock absorber 100, the position sensor 74 moves up and down synchronously with the mover housing 20 through the sensor mounting base 76. At this time, the position sensor 74 can identify the bouncing condition of the wheel through the change in the position of the position sensor grating 73, and transmit the parameters to the ECU in time, so that the ECU can give corresponding adjustment instructions in time based on other sensor parameters. The limit compression height of the upper jump limit buffer block 75 is higher than the upper end of the sensor mounting base 76, so as to ensure that the bottom of the stator movable rod 10 (such as Figure 2 The lower end of the stator 10 will not come into contact with the sensor mounting base 76, thereby avoiding damage to the stator movable rod 10 or other components.

[0094] In actual use, when the vehicle 1000 is running, the sensor group recognizes the change in road conditions and transmits the signal to the ECU. The ECU changes the direction and size of the magnetic field of the electromagnetic shock absorber by adjusting the input current parameters of the winding coil 41 of the electromagnetic shock absorber 100 according to the actual conditions of the road surface, and further realizes real-time adjustment of the output thrust of the electromagnetic shock absorber 100. Finally, by controlling the thrust size and direction of the shock absorber, the impact force of the road on the vehicle 1000 when the operating conditions of the vehicle 1000 change is reduced, so that the operating state of the vehicle 1000 can be maintained as stable as possible, thereby improving the driving stability of the vehicle 1000 and the comfort of the driver and passengers.

[0095] It should be noted that the above arrangement and installation positions of the multiple components in the electromagnetic vibration absorber 100 are only a preferred embodiment and do not represent a limitation thereto. For example, the cooling structure 30 of the electromagnetic vibration absorber 100 of the utility model can be applied to all electromagnetic vibration absorbers 100 of linear motors with open structures (plate type, cylindrical type, polygonal column type, etc.).

[0096] In addition, the type of spring of the electromagnetic shock absorber 100 (coil spring 60 or air spring, etc.), the layout of the spring (upper, middle, lower), the coordination between the stator and the mover (the winding coil 41 is on the mover housing 20, the permanent magnet group 42 is on the stator movable rod 10, or the winding coil 41 is on the stator movable rod 10, the permanent magnet group 42 is on the mover housing 20), the limiting structure (upper and lower limits, internal and external limits, etc.), and the layout and type of the position sensor 74 will not affect the adaptation of this type of cooling structure 30.

[0097] The utility model also provides a vehicle 1000 .

[0098] like Figure 5 As shown, according to an embodiment of the present utility model, an electromagnetic vibration absorber 100 includes any one of the above embodiments.

[0099] According to the vehicle 1000 of the embodiment of the utility model, its electromagnetic shock absorber 100 is capable of dissipating heat to the activity space 201, that is, dissipating heat to the winding coil 41 during the operation of the electromagnetic shock absorber 100 by providing a cooling structure 30, thereby reducing the temperature of the winding coil 41 and reducing the power consumption of the electromagnetic shock absorber 100. The reduction in the temperature of the winding coil 41 can avoid a reduction in the output force of the electromagnetic shock absorber 100, thereby meeting the shock absorbing force requirements of the vehicle 1000.

[0100] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0101] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0102] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0103] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0105] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electromagnetic vibration absorber (100), characterized in that: include: A mover housing (20), wherein the mover housing (20) is formed with an activity space (201); A stator movable rod (10), the stator movable rod (10) being inserted into the movable space (201), at least one of the stator movable rod (10) and the mover housing (20) being provided with a winding coil (41), and the winding coil (41) being located in the movable space (201); A cooling structure (30), the cooling structure (30) is connected to the mover housing (20), and the cooling structure (30) is used to dissipate heat from the activity space (201).

2. The electromagnetic vibration absorber (100) according to claim 1, characterized in that: The cooling structure (30) is constructed as a rotating blade (31), the rotating blade (31) is rotatably matched with the movable housing (20) in the circumferential direction and relatively fixed in the axial direction, and the rotating blade (31) is rotatably sleeved outside the stator movable rod (10).

3. The electromagnetic vibration absorber (100) according to claim 2, characterized in that: The stator movable rod (10) comprises a main body portion (11) and a connecting portion (12); the connecting portion (12) is connected to the main body portion (11) along the axial direction; the outer diameter of the main body portion (11) is greater than the outer diameter of the connecting portion (12); and the rotating blade (31) is sleeved outside the connecting portion (12).

4. The electromagnetic vibration absorber (100) according to claim 3, characterized in that: The winding coil (41) is wound around the outer peripheral wall of the main body (11).

5. The electromagnetic vibration absorber (100) according to claim 3, characterized in that: The rotating blade (31) is provided with a ball (311), and the outer peripheral wall of the connecting portion (12) is provided with a spiral sliding groove (121). When the ball (311) slides along the spiral sliding groove (121), it is suitable for driving the rotating blade (31) to rotate.

6. The electromagnetic vibration absorber (100) according to claim 3, characterized in that: The activity space (201) comprises a first activity space (2011) and a second activity space (2012), wherein the first activity space (2011) and the second activity space (2012) are respectively located on two axial sides of the main body (11), and the main body (11) is provided with a ventilation channel (111), wherein the ventilation channel (111) is connected between the first activity space (2011) and the second activity space (2012).

7. The electromagnetic vibration absorber (100) according to claim 6, characterized in that: The ventilation channel (111) extends along the axial direction of the main body (11).

8. The electromagnetic vibration absorber (100) according to claim 7, characterized in that: The rotating blade (31) is located in the first activity space (2011), and in the axial direction of the main body (11), the rotating blade (31) and the main body (11) are spaced apart and distributed.

9. The electromagnetic vibration absorber (100) according to claim 8, characterized in that: The mover housing (20) comprises an outer shell (21) and a mounting shell (22); the mounting shell (22) is connected to the outer shell (21) to define the first activity space (2011); and the rotating blade (31) is rotatably mounted on the mounting shell (22).

10. The electromagnetic vibration absorber (100) according to claim 9, characterized in that: The outer diameter of the mounting shell (22) is smaller than or equal to the outer diameter of the outer shell (21).

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

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