CN220540189U

CN220540189U - Variable damping electromagnetic valve for shock absorber

Info

Publication number: CN220540189U
Application number: CN202322147156.XU
Authority: CN
Inventors: 孔念羽
Original assignee: NANTONG WIEDSON FUEL INJECTION EQUIPMENT CO Ltd
Current assignee: NANTONG WIEDSON FUEL INJECTION EQUIPMENT CO Ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-02-27
Anticipated expiration: 2033-08-10

Abstract

The utility model relates to the technical field of variable damping electromagnetic valves, in particular to a variable damping electromagnetic valve for a shock absorber, which comprises a coil shell; the fixed plate is installed to junction in coil housing and the sealed casing, inlayer sleeve is located the coil housing, be provided with external fixation rib in the coil housing, the coil housing outside is provided with radiating fin, be provided with movable washer in the valve gap, be provided with sealed cavity in the sealed casing, solenoid heat can be distributed partly by radiating fin, can directly set up solenoid overhead under the fixed of internal fixation rib, external fixation rib, fixed washer and movable washer to reduce solenoid's heat direct transfer to other parts of solenoid valve body, the cooperation is in the cavity inner cooling liquid of sealed casing, has reached the effect of cooling, has realized that solenoid and other components of solenoid valve keep apart the effect that sets up, has effectively increased solenoid's heat radiating area, prevents solenoid overheat and leads to the sealing washer to become invalid.

Description

Variable damping electromagnetic valve for shock absorber

Technical Field

The utility model relates to the technical field of variable damping electromagnetic valves, in particular to a variable damping electromagnetic valve for a shock absorber.

Background

The shock absorber is a buffer component assembled on an automobile suspension and used for relieving jolting caused by uneven roads, the shock absorber is also divided into a traditional spring shock absorber and a variable damping shock absorber, the spring shock absorber is elastically fixed, the spring can not adjust the damping hardness according to road conditions and automobile body states in the running process of a vehicle, the variable damping shock absorber leads induced current to an electromagnetic valve through an ECU module, the electromagnetic valve can adjust the inlet and outlet amount of valve body hydraulic oil after being electrified, and then the compression rebound stroke of the spring is changed to achieve the purpose of changing and adjusting the damping hardness.

The variable damping electromagnetic valve of the existing shock absorber is powered on to the electromagnetic coil through the vehicle body ECU module according to the vehicle body state in the running process of the vehicle, magnetic force is generated after the electromagnetic coil is powered on, a valve rod in the electromagnetic valve is lifted upwards by the magnetic force, a sealing ball body is arranged below the valve rod, the sealing ball body is arranged in an oil cylinder passage, the hydraulic oil flow in the oil cylinder is changed through lifting the sealing ball body upwards by the valve rod, and the compression rebound stroke quantity of a shock absorber spring is adjusted to adjust the shock absorption hardness.

The existing variable damping electromagnetic valve is characterized in that a sealing rubber ring is arranged between a coil framework and a shell for sealing when the variable damping electromagnetic valve is installed, so that hydraulic oil is prevented from leaking onto the electromagnetic coil, heat is generated after the electromagnetic coil is electrified, a sealing ring is melted by the heat, the sealing ring loses sealing effect after long-time use, and the hydraulic oil permeates into the electromagnetic coil to influence the work of the electromagnetic coil; accordingly, a variable damping solenoid valve for a shock absorber has been proposed in view of the above-described problems.

Disclosure of Invention

In order to make up the defects of the prior art, the utility model provides a variable damping electromagnetic valve for a shock absorber, aiming at the problems in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a variable damping electromagnetic valve for a shock absorber, which comprises a coil shell; the coil housing is characterized in that the sealing housing is mounted at the opening end at one side of the coil housing, a fixing plate is mounted at the joint between the coil housing and the sealing housing, a hole is formed in the middle of the fixing plate in a penetrating manner, an inner sleeve is mounted at the hole, the inner sleeve is located in the coil housing, an electromagnetic coil is sleeved on the outer layer of the inner sleeve, the electromagnetic coil is located in the coil housing, an inner fixing rib is arranged on the outer side of the inner sleeve, an outer fixing rib is arranged in the coil housing, a radiating fin is arranged on the outer side of the coil housing, a fixing gasket is mounted on the side face of the fixing plate, a valve cover is arranged at the opening of the other end of the coil housing, a movable gasket is arranged in the valve cover, the other end of the sealing housing is in a sealing state, a sealing cavity is formed in the sealing housing, cooling liquid is filled in the cavity, the cooling effect is achieved through cooperation, the effect of isolating the electromagnetic coil from other components of the electromagnetic coil is achieved, the radiating area of the electromagnetic coil is effectively increased, and the sealing ring is prevented from losing efficacy due to overheating of the electromagnetic coil.

Preferably, one end of the inner sleeve is provided with an opening, the opening is arranged at a hole in the middle of the fixed plate, the other end of the opening is in sealing arrangement, the inner fixing ribs, the outer fixing ribs, the fixing gasket and the movable gasket are made of carbon fiber materials, the electromagnetic coil is matched with the inner fixing ribs, the outer fixing ribs, the fixing gasket and the movable gasket, the electromagnetic coil can be pulled to enter the inner sleeve after being electrified, the electromagnetic coil is overhead, the heat direct transfer is reduced, and the use safety of the electromagnetic valve is improved.

Preferably, the inner fixing rib is matched with the outer fixing rib to fix the electromagnetic coil between the coil shell and the inner sleeve, and the fixing gasket is matched with the movable gasket to fix the electromagnetic coil between the fixing plate and the valve cover, so that the fixed overhead arrangement of the electromagnetic coil is achieved, and the direct transfer of the heat of the electromagnetic coil is avoided.

Preferably, a limiting cylinder is arranged on the inner wall of the sealing end, opposite to the valve cover, of the sealing shell, a sealing cover is arranged at the other end of the limiting cylinder, a spring is arranged in the limiting cylinder, a pull rod is arranged on the side face of the sealing cover in a penetrating mode, the other end of the pull rod penetrates through the sealing end of the sealing shell, a baffle is arranged on the pull rod, normal operation of the electromagnetic valve is achieved through cooperation, and normal use of the electromagnetic valve is not affected when the electromagnetic coil is cooled.

Preferably, the spacing section of thick bamboo is collinearly with sealed casing central line, the baffle is located between spring and the sealed end of sealed casing, the pull rod is provided with the sealing washer No. one in sealed cover penetration department, the pull rod is provided with the sealing washer No. two in sealed end penetration department of sealed casing, the pull rod runs through the setting at the spring inboard, and the cooperation has reached the sealed effect between pull rod and sealed casing and the sealed lid, prevents that coolant liquid and hydraulic oil from permeating into in the spacing section of thick bamboo.

Preferably, the magnetic block is installed to pull rod one end, the magnetic block is located sealed casing, and can extend to in the inlayer sleeve, the valve piece is installed to the pull rod other end, the valve piece cooperation sets up in the damping rod oil duct, and the cooperation has reached the normal operation of solenoid valve, can open the oil duct of damping rod, and then reaches the effect of adjusting the compression rebound stroke volume of bumper shock absorber spring.

The utility model has the advantages that:

1. when the electromagnetic coil is electrified and heated, heat can be dissipated by the radiating fins arranged on the outer side of the coil shell, the electromagnetic coil can be directly arranged in an overhead mode under the fixation of the inner fixing ribs, the outer fixing ribs, the fixing washers and the movable washers, so that the heat of the electromagnetic coil is reduced to be directly transferred to other parts of the electromagnetic valve body, cooling liquid is filled in the sealing cavity in the sealing shell in a matched mode, the electromagnetic coil can be cooled in an accelerated mode, the cooling effect is achieved through the matching, the effect of isolating the electromagnetic coil from other components of the electromagnetic valve is achieved, the radiating area of the electromagnetic coil is effectively increased, and the sealing ring is prevented from being invalid due to overheating of the electromagnetic coil.

2. According to the utility model, magnetism is generated after the electromagnetic coil is electrified to pull the magnetic block into the inner sleeve, the baffle plate is driven to move to one side of the sealing cover when the pull rod is pulled, the spring is extruded by the baffle plate in the moving process, meanwhile, the valve block is pulled by the pull rod to open an oil duct in the damping rod, the normal operation of the electromagnetic valve is achieved in cooperation, the function of adjusting the variable damping of the shock absorber is realized, and compared with the traditional variable damping electromagnetic valve of the shock absorber, the use is safer, and the service life is longer.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of a solenoid valve assembly and a damper rod mounting body;

FIG. 2 is a schematic view in partial cutaway of a solenoid valve assembly and damping rod mounting body structure;

FIG. 3 is a first perspective body structural view;

FIG. 4 is a schematic view in partial cutaway of a first body;

FIG. 5 is an enlarged schematic view, partially in section, of a main body structure of the heat sink support assembly;

FIG. 6 is an enlarged schematic view of the inner sleeve body structure;

fig. 7 is an enlarged schematic view of a region a of the main body structure of the heat dissipation supporting assembly.

In the figure: 1. a coil housing; 101. a seal housing; 2. a fixing plate; 3. an inner sleeve; 4. an electromagnetic coil; 5. an inner fixing rib; 6. an outer fixing rib; 7. a heat radiation fin; 8. a stationary washer; 9. a valve cover; 10. a movable gasket; 11. a limiting cylinder; 12. sealing cover; 13. a spring; 14. a pull rod; 15. a baffle; 16. a magnetic block; 17. a first sealing ring; 18. a second sealing ring; 19. a valve block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 7, a variable damping solenoid valve for a shock absorber includes a coil housing 1; the coil housing 1 one side open end installs sealed casing 101, fixed plate 2 is installed to coil housing 1 and sealed casing 101 junction, the hole has been seted up in the running through of fixed plate 2 intermediate position, and inner sleeve 3 is installed to hole department, just inner sleeve 3 is located coil housing 1, the outer cover of inner sleeve 3 is equipped with solenoid 4, just solenoid 4 is located coil housing 1, the inner sleeve 3 outside is provided with internal fixation rib 5, be provided with outer fixation rib 6 in the coil housing 1, the coil housing 1 outside is provided with radiating fin 7, fixed plate 2 side-mounting has fixed washer 8, coil housing 1 other end opening part is provided with valve gap 9, be provided with movable washer 10 in the valve gap 9, the sealed casing 101 other end is sealed state, be provided with sealed cavity in the sealed casing 101, the cavity is filled with the coolant liquid, inner sleeve 3 one end is provided with the opening, and the opening is installed in the rib department in the middle of fixed plate 2, and the other end is sealed setting, internal fixation rib 5, outer fixation rib 6, fixed ring 8 and fixed rib 8 are fixed with the fixed washer 2, and fixed washer 10 are fixed with the fixed ring between the fixed plate 2 and the fixed washer 2, fixed washer 10 and the fixed plate 3 is fixed washer 3, fixed washer 10 and fixed ring 3 are fixed with the fixed ring between the fixed plate 2 and the fixed plate 2.

During operation, the current variable damping solenoid valve, need install sealed rubber ring between coil skeleton and the casing when the installation and be used for sealed preventing hydraulic oil seepage to electromagnetic coil, and can produce heat after the electromagnetic coil circular telegram, the heat can melt the sealing washer, can lead to the sealing washer to lose sealed effect for a long time use, hydraulic oil infiltration can influence electromagnetic coil work in the electromagnetic coil, in this scheme, can produce magnetic force and pull magnetic block 16 to in the inlayer sleeve 3 after circular telegram to electromagnetic coil 4, and then open the oil duct of damping rod, reach the purpose of adjusting damping rod spring compression rebound stroke volume, and when electromagnetic coil 4 circular telegram generates heat, the heat can be given off partly by the radiating fin 7 that sets up in the outside of coil casing 1, the cooperation has increased radiating area, the radiating of heat has been accelerated, and can directly set up electromagnetic coil 4 under the fixed of internal fixation rib 5, external fixation rib 6, fixation washer 8 and movable washer 10, in order to reduce electromagnetic coil 4's heat direct transfer to electromagnetic valve body other parts, the cooperation is the interior coolant liquid of sealed cavity in sealed casing 101, can accelerate cooling electromagnetic coil 4, the effect has been reached with the cooperation, the effect of cooling coil has been reached with the electromagnetic coil has been realized, the effect of isolating solenoid has been prevented that the electromagnetic coil has been set up to the thermal failure.

Referring to fig. 4-7, a limiting cylinder 11 is mounted on the inner wall of the sealing end of the sealing housing 101 opposite to the valve cover 9, a sealing cover 12 is mounted at the other end of the limiting cylinder 11, a spring 13 is disposed in the limiting cylinder 11, a pull rod 14 is disposed in the side surface of the sealing cover 12 in a penetrating manner, the other end of the pull rod 14 penetrates through the sealing end of the sealing housing 101, a baffle 15 is mounted on the pull rod 14, the limiting cylinder 11 is collinear with the central line of the sealing housing 101, the baffle 15 is located between the spring 13 and the sealing end of the sealing housing 101, a first sealing ring 17 is disposed at the penetrating portion of the pull rod 14 at the sealing end of the sealing housing 12, a second sealing ring 18 is disposed at the penetrating portion of the sealing end of the sealing housing 101, the pull rod 14 penetrates through the inner side of the spring 13, a magnetic block 16 is mounted at one end of the pull rod 14, the magnetic block 16 is located in the sealing housing 101 and can extend into the inner sleeve 3, a valve block 19 is mounted at the other end of the pull rod 14, and the valve block 19 is cooperatively disposed in the damping rod.

During operation, in order to guarantee the normal operation of solenoid valve in this scheme, the normal use of solenoid valve is not influenced in the time cooling to solenoid, in this scheme, spring 13 can push baffle 15 to sealing washer 18 one side all the time under the initial condition, make baffle 15 hug closely on sealed housing 101 sealed end inner wall, and then keep the opening part at inlayer sleeve 3 with magnetic shoe 16, make valve shoe 19 seal in the oil duct of shock attenuation damping pole, through can produce magnetism after the circular telegram to solenoid 4 with magnetic shoe 16 pull to inlayer sleeve 3 in, magnetic shoe 16 can drag pull rod 14 in inlayer sleeve 3 when being pulled, baffle 15 can be driven to sealed lid 12 side when being pulled and remove, and baffle 15 can be to sealed lid 12 side extrusion spring 13 under the removal in-process, and then make spring 13 shrink, and pull rod 14 can be drawn back by solenoid 4 and retract into spacing section of thick bamboo 11, simultaneously, pull rod 14 can pull valve shoe 19 open the oil duct in the shock attenuation damping pole, and then increase the volume of flow of hydraulic oil, the compression stroke volume of adjusting the shock absorber spring, the operation has reached the normal function of solenoid valve, the effect has been realized, the variable-length, the conventional variable-damping solenoid valve has been used, the variable-damping life is more safe and has been realized.

The working principle is that the existing variable damping electromagnetic valve is required to be provided with a sealing rubber ring between a coil framework and a shell for sealing to prevent hydraulic oil from leaking to the electromagnetic coil when the electromagnetic coil is installed, heat can be generated after the electromagnetic coil is electrified, a sealing ring can be melted, the sealing ring can be caused to lose sealing effect after long-time use, hydraulic oil can permeate into the electromagnetic coil to influence the work of the electromagnetic coil, in the scheme, magnetic force can be generated after the electromagnetic coil 4 is electrified to pull a magnetic block 16 into an inner sleeve 3, then an oil duct of a damping rod is opened, the purpose of adjusting the compression rebound stroke amount of the damping rod spring is achieved, when the electromagnetic coil 4 is electrified and heats, the heat can be emitted by a part of a radiating fin 7 arranged outside the coil shell 1, the radiating area is increased in a matched mode, the radiating area of the heat is accelerated, the heat can be directly arranged under the fixation of an inner fixing rib 5, an outer fixing rib 6, a fixing gasket 8 and a movable gasket 10, the heat of the electromagnetic coil 4 is directly transferred onto other parts of the electromagnetic valve body, cooling liquid in a sealing cavity matched with the sealing shell 101 can be accelerated to cool the electromagnetic coil 4, the effect of the electromagnetic coil is achieved, the effect of cooling the electromagnetic coil is achieved, the electromagnetic coil is prevented from being invalid, and the radiating area of the electromagnetic coil is effectively increased.

In order to ensure the normal operation of the electromagnetic valve in the scheme, the electromagnetic coil is cooled, the normal use of the electromagnetic valve is not influenced, in the scheme, the baffle 15 is pushed to one side of the sealing cover 18 all the time through the spring 13 in an initial state, the baffle 15 is clung to the inner wall of the sealing end of the sealing shell 101, the magnetic block 16 is further kept at the opening of the inner layer sleeve 3, the valve block 19 is sealed in an oil duct of the damping rod, the magnetic block 16 is pulled into the inner layer sleeve 3 through magnetism generated after the electromagnetic coil 4 is electrified, the magnetic block 16 is pulled into the inner layer sleeve 3 when being pulled, the baffle 15 is driven to move to one side of the sealing cover 12 when the pull rod 14 is pulled, the baffle 15 can squeeze the spring 13 to one side of the sealing cover 12 in a moving process, the spring 13 is further contracted, the pull rod 14 can be pulled back into the limiting cylinder 11 by the electromagnetic coil 4, meanwhile, the pull rod 14 can pull the valve block 19 to open the oil duct in the damping rod, further increase the flow quantity of hydraulic oil, the compression stroke quantity of the spring of the damper is adjusted, normal operation is matched, the effect of the electromagnetic valve is achieved, the traditional electromagnetic valve is realized, the effect of the electromagnetic valve can be used, the service life of the electromagnetic valve is prolonged, and the electromagnetic valve can be used safely, and the service life of the electromagnetic valve is prolonged, and the life is prolonged.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. A variable damping solenoid valve for a shock absorber, characterized by: comprises a coil housing (1); the utility model provides a coil housing, coil housing (1) one side open end installs seal housing (101), coil housing (1) and seal housing (101) junction installs fixed plate (2), fixed plate (2) intermediate position runs through and has seted up the hole, and hole department installs inlayer sleeve (3), just inlayer sleeve (3) are located coil housing (1), inlayer sleeve (3) outer cover is equipped with solenoid (4), just solenoid (4) are located coil housing (1), inlayer sleeve (3) outside is provided with interior fixed rib (5), be provided with outer fixed rib (6) in coil housing (1), coil housing (1) outside is provided with fin (7), fixed washer (8) are installed to fixed plate (2) side, coil housing (1) other end opening part is provided with valve gap (9), be provided with movable washer (10) in valve gap (9), seal housing (101) other end is sealing state, be provided with sealed cavity in seal housing (101), perfuse in the cavity.

2. A variable damping solenoid valve for a shock absorber according to claim 1, wherein: one end of the inner sleeve (3) is provided with an opening, the opening is arranged at a hole in the middle of the fixed plate (2), the other end of the inner sleeve is in sealing arrangement, and the inner fixed rib (5), the outer fixed rib (6), the fixed gasket (8) and the movable gasket (10) are made of carbon fiber materials.

3. A variable damping solenoid valve for a shock absorber according to claim 1, wherein: the inner fixing ribs (5) are matched with the outer fixing ribs (6) to fix the electromagnetic coil (4) between the coil housing (1) and the inner sleeve (3), and the fixing washers (8) are matched with the movable washers (10) to fix the electromagnetic coil (4) between the fixing plate (2) and the valve cover (9).

4. A variable damping solenoid valve for a shock absorber according to claim 1, wherein: the sealing device is characterized in that a limiting cylinder (11) is arranged on the inner wall of the sealing end of the sealing shell (101) opposite to the valve cover (9), a sealing cover (12) is arranged at the other end of the limiting cylinder (11), a spring (13) is arranged in the limiting cylinder (11), a pull rod (14) is arranged on the side face of the sealing cover (12) in a penetrating mode, the other end of the pull rod (14) penetrates through the sealing end of the sealing shell (101), and a baffle (15) is arranged on the pull rod (14).

5. A variable damping solenoid valve for a shock absorber according to claim 4, wherein: the limiting cylinder (11) is collinear with the central line of the sealing shell (101), the baffle (15) is located between the spring (13) and the sealing end of the sealing shell (101), the pull rod (14) is provided with a first sealing ring (17) at the penetrating position of the sealing cover (12), the pull rod (14) is provided with a second sealing ring (18) at the penetrating position of the sealing end of the sealing shell (101), and the pull rod (14) is penetrated and arranged on the inner side of the spring (13).

6. A variable damping solenoid valve for a shock absorber according to claim 5, wherein: the magnetic block (16) is installed to pull rod (14) one end, magnetic block (16) are located sealed casing (101) and can extend to in inlayer sleeve (3), valve piece (19) are installed to pull rod (14) other end, valve piece (19) cooperation sets up in the damping rod oil duct.