CN113738811A

CN113738811A - Magnetic liquid vibration absorber for electric automobile

Info

Publication number: CN113738811A
Application number: CN202111315235.6A
Authority: CN
Inventors: 李毅
Original assignee: Hangzhou Fitcoo Technology Co ltd
Current assignee: Hangzhou Fitcoo Technology Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2021-12-03
Anticipated expiration: 2041-11-08
Also published as: CN113738811B

Abstract

The invention discloses a magnetic liquid shock absorber of an electric automobile, which relates to the technical field of shock absorbers and solves the problem of poor heat dissipation of the magnetic liquid shock absorber, and comprises an inner cylinder and a heat dissipation structure, wherein magnetic liquid is filled in the inner cylinder, the bottom of the inner cylinder is fixed with a wheel, a piston is arranged in the inner cylinder, the piston is in sliding connection with the inside of the inner cylinder, the top of the piston is provided with a fixed rod, one end of the fixed rod, which is far away from the piston, penetrates through the inner cylinder and is provided with an outer cylinder, the top of the outer cylinder is fixed with an automobile body, the top of the outer cylinder is provided with a control chamber for carrying out power-on control on a coil in the piston, and the heat dissipation structure is positioned between the inner cylinder and the outer cylinder and is used for absorbing and discharging heat generated by the movement of the piston in the inner cylinder; the water replenishing structure is arranged on the outer side of the inner cylinder and used for replenishing water in the heat dissipation structure when the piston moves, so that the heat dissipation efficiency of the device is further improved.

Description

Magnetic liquid vibration absorber for electric automobile

Technical Field

The invention relates to the technical field of shock absorbers, in particular to a magnetic liquid shock absorber for an electric automobile.

Background

The magneto-rheological damper responds to road conditions and driving environment in real time by utilizing electromagnetic reaction and based on input information from sensors for monitoring the motion of a vehicle body and wheels. The magnetorheological liquid is a magnetic soft particle suspension, and after the liquid is injected into an electromagnetic coil in a piston of the shock absorber, the magnetic field of the coil changes the rheological property (or generates fluid resistance), so that the damping force with quick response and strong controllability is generated under the conditions of no electromechanical control valve and simple mechanical device.

When the magnetic liquid shock absorber works, when a piston moves in a magnetic liquid cylinder, heat is generated, meanwhile, because the shock absorber is of a cylindrical structure, heat dissipation is difficult to realize, overhigh temperature can affect the performance of the magnetic liquid in the shock absorber, meanwhile, because the motion amplitude of an automobile body is overlarge, a magnetic field can be enhanced, the viscosity of the magnetic liquid is enhanced, the damping is increased, and therefore the heat generating efficiency is higher when the motion of the piston is correspondingly controlled, the prior patent No. CN104196945B discloses a water-cooling shock absorber, wherein a water jacket for water flow to pass through is arranged outside the cylinder wall of a shock absorber body, water flow at lower temperature passes through the water jacket and is in heat transfer with the shock absorber body at higher temperature, the heat is transferred to water in the water jacket, the heat is taken away through the circulation of the water, and the effective cooling of the shock absorber is realized, but the water-cooling shock absorber can only need to be opened by an automobile water circulation system, when the water circulation system is not opened, water in the water jacket does not flow, so that heat cannot be taken away through the water body, in addition, energy consumption of an automobile can be increased by introducing the water in the water jacket into the water circulation system, and therefore the magnetic liquid shock absorber for the electric automobile is provided.

Disclosure of Invention

The invention aims to provide a magnetic liquid damper for an electric vehicle, which can absorb and discharge heat generated by the movement of a damper piston in an inner cylinder, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the magnetic liquid shock absorber for the electric automobile comprises an inner cylinder and a heat dissipation structure, wherein magnetic liquid is filled in the inner cylinder, the bottom of the inner cylinder is fixed with wheels, a piston is arranged in the inner cylinder and is in sliding connection with the inside of the inner cylinder, a fixing rod is arranged at the top of the piston, one end, far away from the piston, of the fixing rod penetrates through the inner cylinder and is provided with an outer cylinder, the top of the outer cylinder is fixed with an automobile body, a control chamber is arranged at the top of the outer cylinder and is used for conducting power-on control on a coil in the piston, and the heat dissipation structure is located between the inner cylinder and the outer cylinder and is used for absorbing and discharging heat generated by the movement of the piston in the inner cylinder; the water replenishing structure is arranged on the outer side of the inner cylinder and used for replenishing water in the heat dissipation structure when the piston moves, so that the heat dissipation efficiency of the device is further improved.

Preferably, the heat dissipation structure comprises a heat dissipation cylinder, the heat dissipation cylinder is fixed on the outer side of the inner cylinder, the outer side of the heat dissipation cylinder is in sliding connection with the inner side of the outer cylinder, a flow baffle is arranged in the heat dissipation cylinder, the top and the bottom of the flow baffle are provided with water openings, one side inside the heat dissipation cylinder is provided with an extrusion part, the extrusion part is used for enabling water in the heat dissipation cylinder to move along with the movement of the piston, and the heat dissipation efficiency of the water in the heat dissipation cylinder is improved.

Preferably, the extruded article includes the installation piece, the installation piece is semi-circular, and with the inboard sliding connection of a heat dissipation section of thick bamboo, installation piece top is equipped with the gag lever post, the gag lever post is equipped with two, the symmetric distribution is at installation piece top, one side that the installation piece was kept away from to the gag lever post runs through a heat dissipation section of thick bamboo and the urceolus is fixed, be equipped with the buffer structure who is used for reducing the instantaneous impact force that the installation piece received when along with the piston motion on the installation piece, can move along with the piston motion, extrude the water in the heat dissipation section of thick bamboo, thereby make water flow in a heat dissipation section of thick bamboo.

Preferably, the buffer structure comprises a mounting ring, a plurality of mounting holes are arranged on the mounting block, the mounting holes are uniformly distributed on the mounting block, the mounting ring is provided with a plurality of mounting rings which are respectively fixed in the mounting holes, a first slide bar and a second slide bar are arranged on the mounting ring in a penetrating way, the first slide bar and the second slide bar are respectively provided with a plurality of first slide bars and a plurality of second slide bars, the first slide bars and the second slide bars are uniformly distributed on the mounting ring in a staggered way and are in sliding connection with the mounting ring, two baffle rings are arranged in the mounting holes and are symmetrically distributed on two sides of the mounting ring, one baffle ring is fixed with one end of the first slide bar, the other baffle ring is fixed with one end of the second slide bar, two buffer plates are arranged in the heat dissipation cylinder and are symmetrically distributed on the upper side and the lower side of the mounting ring, one buffer plate is fixed with the first slide bar, the other buffer plate is arranged on a limiting bar in a penetrating way and is fixed with the second slide bar, the buffer plate is in sliding connection with the inner side of the heat dissipation cylinder, a telescopic rod is arranged between the two buffer plates, the telescopic link is equipped with a plurality ofly, is located each mounting hole respectively, and the telescopic link runs through the collar and keeps off the ring, wears to be equipped with the pressure spring on the telescopic link, and the pressure spring both ends are fixed with two buffer boards respectively for reduce the instantaneous impact force that the installation piece received, thereby reduce the influence to shock absorber damping performance itself.

Preferably, the moisturizing structure includes inlet tube and outlet pipe, the inlet tube all communicates with each other with the heat dissipation section of thick bamboo inboard with the outlet pipe, be equipped with the shrouding in the heat dissipation section of thick bamboo, the shrouding is fixed in the one side of keeping off the flow board and keeping away from heat radiation structure, the inlet tube is equipped with two, the symmetric distribution is both sides about the shrouding, the outlet pipe is equipped with two, the both ends of inlet tube one side are kept away from at the heat dissipation section of thick bamboo to the symmetric distribution, be equipped with the notch on the urceolus, notch and inlet tube or outlet pipe sliding connection, all be equipped with the non return spare that is used for preventing the water reflux on inlet tube and the outlet pipe, be equipped with limit structure on the urceolus, be used for preventing urceolus and inner tube relative rotation from appearing, protect inlet tube and outlet pipe, carry out real-time change through the water to the heat dispersion that improves the heat dissipation section of thick bamboo.

Preferably, the check piece includes the check valve, and the check valve is equipped with a plurality ofly, fixes respectively on inlet tube or outlet pipe, and the rivers direction that is located the check valve on the inlet tube is for following inside the inlet tube flow direction heat dissipation section of thick bamboo, and the rivers direction that is located the check valve on the outlet pipe is for following the inside outlet pipe that flows to of heat dissipation section of thick bamboo for prevent that the water in the heat dissipation section of thick bamboo from flowing back in the inlet tube, prevent simultaneously that the water in the outlet tube from flowing back in the heat dissipation section of thick bamboo.

Preferably, the limiting structure comprises two limiting heads, the two limiting heads are symmetrically distributed on the outer side of the heat dissipation cylinder, the outer cylinder is provided with two sliding holes, the two sliding holes are symmetrically distributed on the outer cylinder, the limiting heads penetrate through the sliding holes and are in sliding connection with the sliding holes, the water inlet pipe and the water outlet pipe are protected, and the outer cylinder and the inner cylinder are prevented from rotating relatively.

Preferably, the water inlet pipe and the water outlet pipe are communicated with the automobile water tank, so that the overall occupied space of the device is reduced.

Compared with the prior art, the invention has the beneficial effects that:

according to the automobile water replenishing device, the heat dissipation structure is arranged, when an automobile jolts, the vibration absorber operates to drive the piston to slide up and down in the inner cylinder, heat generated by the movement of the piston in the inner cylinder is absorbed and discharged, the heat dissipation cylinder is sleeved outside the inner cylinder, so that water can wrap the inner cylinder, meanwhile, the water in the heat dissipation structure is replenished and discharged through the arranged water replenishing structure, and the heat dissipation performance of the heat dissipation structure is further improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view, partially in section, of the overall structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the heat dissipation structure of the present invention;

FIG. 4 is a schematic view of another perspective internal structure of the heat dissipation structure of the present invention;

FIG. 5 is a schematic view of an extrusion configuration of the present invention;

FIG. 6 is a schematic view of a buffer structure according to the present invention;

FIG. 7 is a structural distribution diagram of a baffle ring, a first slide bar and a second slide bar of the buffering structure according to the present invention;

FIG. 8 is an enlarged view taken at A in FIG. 2;

fig. 9 is an enlarged view of fig. 4 at B.

In the figure: 1-an inner cylinder; 2-a piston; 3-fixing the rod; 4-outer cylinder; 5-a control room; 6-a heat dissipation structure; 7-a water replenishing structure; 8-a heat dissipation cylinder; 9-a flow baffle; 10-water through port; 11-an extrusion; 12-a mounting block; 13-a limiting rod; 14-a buffer structure; 15-mounting a ring; 16-mounting holes; 17-a first slide bar; 18-a second slide bar; 19-a baffle ring; 20-a buffer plate; 21-a telescopic rod; 22-a pressure spring; 23-a water inlet pipe; 24-a water outlet pipe; 25-closing the plate; 26-a notch; 27-no return; 28-a limit structure; 29-a one-way valve; 30-a limiting head; 31-slide hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-9, the magnetic liquid shock absorber for the electric vehicle shown in the figure comprises an inner cylinder 1 and a heat dissipation structure 6, wherein magnetic liquid is filled in the inner cylinder 1, the bottom of the inner cylinder 1 is fixed with a wheel, a piston 2 is arranged in the inner cylinder 1, the piston 2 is slidably connected with the inside of the inner cylinder 1, a fixing rod 3 is arranged at the top of the piston 2, one end, far away from the piston 2, of the fixing rod 3 penetrates through the inner cylinder 1 to be provided with an outer cylinder 4, the top of the outer cylinder 4 is fixed with a vehicle body, a control chamber 5 is arranged at the top of the outer cylinder 4 and used for conducting power-on control on a coil in the piston 2, and the heat dissipation structure 6 is located between the inner cylinder 1 and the outer cylinder 4 and used for absorbing and discharging heat generated by the movement of the piston 2 in the inner cylinder 1; the 1 outside of inner tube is equipped with moisturizing structure 7, be used for moisturizing in to heat radiation structure 6 when piston 2 moves, further improve device's radiating efficiency, through being equipped with heat radiation structure 6, jolt receiving at the car, when the shock absorber function drives piston 2 and slides from top to bottom in inner tube 1, absorb and discharge the heat that piston 2 inner tube 1 internal motion produced, through establishing heat dissipation section of thick bamboo 8 at the 1 outside cover of inner tube, make water can wrap up inner tube 1, water through the moisturizing structure 7 that sets up in to heat radiation structure 6 supplements and discharges simultaneously, further improve heat radiation structure 6's heat dispersion.

As shown in fig. 4, the heat dissipation structure 6 includes a heat dissipation cylinder 8, the heat dissipation cylinder 8 is fixed on the outer side of the inner cylinder 1, the outer side of the heat dissipation cylinder 8 is slidably connected with the inner side of the outer cylinder 4, as shown in fig. 9, a flow baffle plate 9 is arranged in the heat dissipation cylinder 8, and the top and the bottom of the flow baffle plate 9 are both provided with water openings 10, as shown in fig. 3, one side inside the heat dissipation cylinder 8 is provided with an extrusion part 11 for moving the water in the heat dissipation cylinder 8 along with the movement of the piston 2 and moving the water in the heat dissipation cylinder 8 along with the movement of the piston 2, thereby improving the heat dissipation efficiency of the water in the heat dissipation cylinder 8.

In addition, as shown in fig. 5 and 8, the extrusion member 11 includes a mounting block 12, the mounting block 12 is semicircular and is slidably connected with the inner side of the heat dissipation cylinder 8, the top of the mounting block 12 is provided with two limiting rods 13, the two limiting rods 13 are symmetrically distributed on the top of the mounting block 12, one side of the limiting rod 13, which is far away from the mounting block 12, penetrates through the heat dissipation cylinder 8 and is fixed with the outer cylinder 4, the mounting block 12 is provided with a buffer structure 14 for reducing the instantaneous impact force applied to the mounting block 12 when the mounting block moves along with the piston 2, and the buffer structure can move along with the movement of the piston 2 to extrude the water in the heat dissipation cylinder 8, so that the water flows in the heat dissipation cylinder 8.

When the automobile is bumped, the control room 5 receives information transmitted by the wheel and the automobile body motion sensor to control the magnitude of output current, so that the strength of a magnetic field generated by a coil in the piston 2 is controlled, the viscosity of magnetic liquid in the inner cylinder 1 is changed, the motion amplitude of the piston 2 is controlled, a damping effect is provided, when the piston 2 moves, the mounting block 12 moves together with the magnetic field to extrude water in the heat dissipation cylinder 8, so that the water in the heat dissipation cylinder 8 can flow back and forth through the water through opening 10, and heat generated by the inner cylinder 1 is absorbed and discharged.

Example 2

Referring to fig. 1 to 4 and 8, the present embodiment further illustrates example 1:

the water supplementing structure 7 comprises a water inlet pipe 23 and a water outlet pipe 24, the water inlet pipe 23 and the water outlet pipe 24 are both communicated with the inner side of the heat radiating cylinder 8, as shown in fig. 4, a sealing plate 25 is disposed in the heat dissipating cylinder 8, the sealing plate 25 is fixed on a side of the flow baffle 9 away from the heat dissipating structure 6, as shown in fig. 2, two water inlet pipes 23 are disposed, the two water outlet pipes 24 are symmetrically distributed at the upper and lower sides of the sealing plate 25 and are symmetrically distributed at the two ends of the side of the heat radiation cylinder 8 far away from the water inlet pipe 23, as shown in fig. 1, the outer cylinder 4 is provided with a notch 26, the notch 26 is connected with the water inlet pipe 23 or the water outlet pipe 24 in a sliding manner, the water inlet pipe 23 and the water outlet pipe 24 are both provided with a check member 27 for preventing water from flowing back, the outer cylinder 4 is provided with a limit structure 28 for preventing the outer cylinder 4 and the inner cylinder 1 from rotating relatively, the water inlet pipe 23 and the water outlet pipe 24 are protected, and the heat dissipation performance of the heat dissipation cylinder 8 is improved by replacing water in the heat dissipation cylinder 8 in real time.

As shown in fig. 8, the check member 27 includes a plurality of check valves 29, the check valves 29 are provided and fixed to the water inlet pipe 23 or the water outlet pipe 24, respectively, a water flow direction of the check valve 29 on the water inlet pipe 23 is from the water inlet pipe 23 to the inside of the heat dissipating cylinder 8, and a water flow direction of the check valve 29 on the water outlet pipe 24 is from the inside of the heat dissipating cylinder 8 to the water outlet pipe 24, so as to prevent the water in the heat dissipating cylinder 8 from flowing back into the water inlet pipe 23 and prevent the water in the water outlet pipe 24 from flowing back into the heat dissipating cylinder 8.

As shown in fig. 8, the limiting structure 28 includes two limiting heads 30, the two limiting heads 30 are symmetrically distributed outside the heat dissipating cylinder 8, the outer cylinder 4 is provided with two sliding holes 31, the two sliding holes 31 are symmetrically distributed on the outer cylinder 4, the limiting heads 30 penetrate through the sliding holes 31 and are slidably connected with the sliding holes 31, so as to protect the water inlet pipe 23 and the water outlet pipe 24 and prevent the outer cylinder 4 and the inner cylinder 1 from rotating relatively.

Wherein, the water inlet pipe 23 and the water outlet pipe 24 are communicated with the automobile water tank, so that the occupied space of the whole device is reduced.

Due to the existence of the one-way valve 29, the water in the heat dissipation cylinder 8 can be kept in a full state, when the piston 2 moves, the mounting block 12 moves along with the piston to extrude the water in the heat dissipation cylinder 8, at the moment, the water outlet 24 in the moving direction of the mounting block 12 is pressed to be opened to discharge the water from the heat dissipation cylinder 8, the water inlet 23 in the moving direction back to the mounting block 12 is opened to supply water to the space in the heat dissipation cylinder 8 opposite to the moving direction of the mounting block 12, when the piston 2 returns with the mounting block 12, the water outlet 24 in the moving direction of the mounting block 12 is pressed to be opened to discharge the water from the heat dissipation cylinder 8, the water inlet 23 in the moving direction back to the mounting block 12 is opened to supply water to the space in the heat dissipation cylinder 8 opposite to the moving direction of the mounting block 12, and the purpose of supplying water to the heat dissipation cylinder 8 and discharging the water absorbing heat in real time when the piston 2 moves is achieved.

Example 3

Referring to fig. 5 to 7, the present embodiment further illustrates example 1:

the buffer structure 14 comprises a mounting ring 15, a plurality of mounting holes 16 are formed in the mounting block 12 and are uniformly distributed on the mounting block 12, a plurality of mounting rings 15 are arranged and are respectively fixed in the mounting holes 16, a first slide bar 17 and a second slide bar 18 are arranged on the mounting ring 15 in a penetrating manner, as shown in fig. 7, a plurality of first slide bars 17 and a plurality of second slide bars 18 are arranged and are uniformly distributed on the mounting ring 15 in a staggered manner and are in sliding connection with the mounting ring 15, two baffle rings 19 are arranged in the mounting holes 16 and are symmetrically distributed on two sides of the mounting ring 15, one baffle ring 19 is fixed with one end of the first slide bar 17, the other baffle ring 19 is fixed with one end of the second slide bar 18, a baffle plate 20 is arranged in the heat dissipation cylinder 8, two baffle plates 20 are arranged and are symmetrically distributed on the upper side and the lower side of the mounting ring 15, one baffle plate 20 is fixed with the first slide bar 17, the other baffle plate 20 is arranged on the limiting rod 13 in a penetrating manner and fixed with the second slide bar 18, buffer board 20 and the inboard sliding connection of a heat dissipation section of thick bamboo 8, be equipped with telescopic link 21 between two buffer boards 20, telescopic link 21 is equipped with a plurality ofly, is located each mounting hole 16 respectively, and telescopic link 21 runs through collar 15 and fender ring 19, wears to be equipped with pressure spring 22 on the telescopic link 21, and pressure spring 22 both ends are fixed with two buffer boards 20 respectively for reduce the instantaneous impact force that installation piece 12 received, thereby reduce the influence to shock absorber damping performance itself.

When the shock absorber receives the impact and allows the piston 2 to move in the inner cylinder 1, the instantaneous impact force drives the buffer plate 20 to move towards the direction of the source of the impact force, so that the telescopic rod 21 is driven to retract, the pressure spring 22 is pressed to absorb and buffer the instantaneous impact force, and the influence on the shock absorption performance of the shock absorber is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Electric automobile magnetic liquid shock absorber, its characterized in that includes:

the magnetic automobile wheel brake device comprises an inner cylinder (1), magnetic liquid is filled in the inner cylinder (1), the bottom of the inner cylinder (1) is fixed with a wheel, a piston (2) is arranged in the inner cylinder (1), the piston (2) is connected with the inner part of the inner cylinder (1) in a sliding mode, a fixing rod (3) is arranged at the top of the piston (2), one end, far away from the piston (2), of the fixing rod (3) penetrates through the inner cylinder (1) to be provided with an outer cylinder (4), the top of the outer cylinder (4) is fixed with an automobile body, and a control chamber (5) is arranged at the top of the outer cylinder (4) and used for conducting power-on control on a coil in the piston (2);

the heat dissipation structure (6) is positioned between the inner cylinder (1) and the outer cylinder (4), and is used for absorbing and discharging heat generated by the movement of the piston (2) in the inner cylinder (1); and a water supplementing structure (7) is arranged on the outer side of the inner cylinder (1) and used for supplementing water in the heat dissipation structure (6) when the piston (2) moves, so that the heat dissipation efficiency of the device is further improved.

2. The magnetic liquid damper for electric vehicles according to claim 1, characterized in that: heat radiation structure (6) are including a heat dissipation section of thick bamboo (8), a heat dissipation section of thick bamboo (8) are fixed inner tube (1) outside, a heat dissipation section of thick bamboo (8) outside with urceolus (4) inboard sliding connection, be equipped with in a heat dissipation section of thick bamboo (8) and keep off a class board (9), it all is equipped with water gap (10) to keep off class board (9) top and bottom, the inside one side of a heat dissipation section of thick bamboo (8) is equipped with extruded article (11), is used for along with the motion of piston (2) makes water in a heat dissipation section of thick bamboo (8) moves.

3. The magnetic liquid damper for electric vehicles according to claim 2, characterized in that: extruded piece (11) are including installation piece (12), installation piece (12) are semi-circular, and with the inboard sliding connection of heat dissipation section of thick bamboo (8), installation piece (12) top is equipped with gag lever post (13), gag lever post (13) are equipped with two, and the symmetric distribution is in installation piece (12) top, gag lever post (13) are kept away from one side of installation piece (12) is run through heat dissipation section of thick bamboo (8) with urceolus (4) are fixed, be equipped with on installation piece (12) and be used for reducing installation piece (12) are along with buffer structure (14) of the instantaneous impact force that receives during piston (2) motion.

4. The magnetic liquid damper for electric vehicles according to claim 2 or 3, characterized in that: the buffer structure (14) comprises a mounting ring (15), a mounting hole (16) is formed in the mounting block (12), the mounting hole (16) is provided with a plurality of mounting holes, the mounting holes are uniformly distributed on the mounting block (12), the mounting ring (15) is provided with a plurality of mounting holes which are respectively fixed in the mounting holes (16), a first sliding rod (17) and a second sliding rod (18) are arranged on the mounting ring (15) in a penetrating manner, the first sliding rod (17) and the second sliding rod (18) are both provided with a plurality of mounting holes, the first sliding rod (17) and the second sliding rod (18) are uniformly distributed on the mounting ring (15) in a staggered manner and are in sliding connection with the mounting ring (15), a blocking ring (19) is arranged in the mounting hole (16), the blocking ring (19) is provided with two, the mounting holes are symmetrically distributed on two sides of the mounting ring (15), one blocking ring (19) is fixed to one end of the first sliding rod (17), and the other blocking ring (19) is fixed to one end of the second sliding rod (18), be equipped with buffer board (20) in heat dissipation section of thick bamboo (8), buffer board (20) are equipped with two, and the symmetric distribution is in both sides about collar (15), one buffer board (20) with first slide bar (17) are fixed, another buffer board (20) slide and wear to establish on gag lever post (13) with second slide bar (18) are fixed, buffer board (20) with heat dissipation section of thick bamboo (8) inboard sliding connection, two be equipped with telescopic link (21) between buffer board (20), telescopic link (21) are equipped with a plurality ofly, are located each respectively in mounting hole (16), telescopic link (21) run through collar (15) with keep off ring (19), wear to be equipped with pressure spring (22) on telescopic link (21), pressure spring (22) both ends respectively with two it is fixed to cushion board (20).

5. The magnetic liquid damper for the electric vehicle according to claim 1 or 2, wherein: the water supplementing structure (7) comprises an inlet pipe (23) and an outlet pipe (24), the inlet pipe (23) and the outlet pipe (24) are communicated with each other with the inner side of the heat dissipation cylinder (8), a sealing plate (25) is arranged in the heat dissipation cylinder (8), the sealing plate (25) is fixed on one side, away from the heat dissipation structure (6), of the flow baffle plate (9), the inlet pipe (23) is provided with two parts which are symmetrically distributed on the upper side and the lower side of the sealing plate (25), the outlet pipe (24) is provided with two parts which are symmetrically distributed on the two ends, away from one side of the inlet pipe (23), of the heat dissipation cylinder (8), a notch (26) is arranged on the outer cylinder (4), the notch (26) is connected with the inlet pipe (23) or the outlet pipe (24) in a sliding manner, a non-return part (27) for preventing water return is arranged on the inlet pipe (23) and the outlet pipe (24), be equipped with limit structure (28) on urceolus (4), be used for preventing urceolus (4) with relative rotation appears in inner tube (1), it is right inlet tube (23) with outlet pipe (24) protect.

6. The magnetic liquid damper for electric vehicles according to claim 5, characterized in that: check spare (27) include check valve (29), check valve (29) are equipped with a plurality ofly, fix respectively inlet tube (23) or on outlet pipe (24), are located on inlet tube (23) the rivers direction of check valve (29) is for following inlet tube (23) flow direction inside heat dissipation cylinder (8), be located on outlet pipe (24) the rivers direction of check valve (29) is for following the inside flow direction of heat dissipation cylinder (8) outlet pipe (24).

7. The magnetic liquid damper for electric vehicles according to claim 5, characterized in that: limiting structure (28) are including limiting head (30), limiting head (30) are equipped with two, and the symmetric distribution is in heat dissipation section of thick bamboo (8) outside, be equipped with slide opening (31) on urceolus (4), slide opening (31) are equipped with two, and the symmetric distribution is in on urceolus (4), limiting head (30) run through slide opening (31) with slide opening (31) sliding connection.

8. The magnetic liquid damper for electric vehicles according to claim 5, characterized in that: the water inlet pipe (23) and the water outlet pipe (24) are communicated with an automobile water tank.