Built-in direct proportion electromagnetic valve for shock absorber

Abstract

The invention discloses a built-in direct proportion electromagnetic valve for a shock absorber, and relates to the field of electromagnetic valves, the built-in direct proportion electromagnetic valve for the shock absorber comprises a hydraulic structure and an electromagnetic mechanism which are assembled together, the hydraulic structure comprises an outer shell, a one-way valve structure A and a one-way valve structure B, and the one-way valve structure A and the one-way valve structure B are arranged on the end face and the side face of the outer shell; fluid enters the electromagnetic valve in a one-way mode through the one-way valve structure B and then flows out of the one-way valve structure A. A first circulation mode and a second circulation mode are formed in the outer shell, and according to the first circulation mode, the fluid flows in from the one-way valve structure B on the end face of the outer shell and flows out from the one-way valve structure A on the side face of the outer shell. According to the second circulation mode, the fluid flows in from the one-way valve structure B on the side face of the outer shell and flows out from the one-way valve structure A on the end face of the outer shell, so that the fluid can only circulate in a one-way mode, namely the fluid flows in from the one-way valve structure B and flows out from the one-way valve structure A, and a direct proportion electromagnetic valve is formed.

Description

Technical Field

[0001] The invention relates to the field of electromagnetic valves, in particular to a built-in proportional electromagnetic valve for a shock absorber. Background Art

[0002] The automobile suspension system is an important component related to automobile safety. The shock absorber is an important part of the suspension system. It can be used to reduce the impact of spring rebound and road surface, and can improve the driving smoothness and comfort of the car. The shock absorber contains a solenoid valve. Most solenoid valves on the market are divided into built-in and external types. At present, the main application of built-in solenoid valves is inverse proportional solenoid valves, and there is no mature application of direct proportional solenoid valves. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a built-in proportional solenoid valve for a shock absorber to solve the deficiencies of the prior art.

[0004] The objective of the present invention is achieved through the following technical solutions: a built-in proportional solenoid valve for a shock absorber, comprising a hydraulic structure and an electromagnetic mechanism assembled together, the hydraulic structure comprising an outer shell, a one-way valve structure A and a one-way valve structure B, the end face and the side face of the outer shell are both provided with the one-way valve structure A and the one-way valve structure B, the fluid enters the solenoid valve in one direction through the one-way valve structure B, and then flows out from the one-way valve structure A, a first flow mode and a second flow mode are formed in the outer shell, the first flow mode: flowing in from the one-way valve structure B on the end face of the outer shell and flowing out from the one-way valve structure A on the side face of the outer shell; the second flow mode: flowing in from the one-way valve structure B on the side face of the outer shell and flowing out from the one-way valve structure A on the end face of the outer shell.

[0005] Furthermore, the one-way valve structure A includes a valve seat, a one-way valve seat A, a steel ball A and a tower spring A. The outer shell is provided with a valve slot A at the position where the one-way valve structure A is set. The one-way valve seat A is fixedly assembled in the valve slot A. The inner diameter of the one-way valve seat A gradually decreases in the direction approaching the outer shell. The steel ball A is assembled in the one-way valve seat A. The valve seat is assembled at the large diameter end of the one-way valve seat A. The tower spring A is assembled between the valve seat and the steel ball A.

[0006] Furthermore, the one-way valve structure B includes a one-way valve seat B, a steel ball B and a tower spring B. The outer shell is provided with a valve slot B at the position where the one-way valve structure B is set. The outer shell is provided with a flow hole connected to the valve slot B. The one-way valve seat B is fixedly assembled in the valve slot B. The inner hole diameter of the one-way valve seat B gradually decreases in the direction away from the outer shell. The steel ball B is assembled in the inner hole of the one-way valve seat B, and the tower spring B is arranged between the steel ball B and the flow hole.

[0007] Furthermore, the hydraulic structure also includes a main control sleeve, a main control seat and a sealing seat assembled in the outer shell, and the main control sleeve is equipped with a spring stop seat, a piston rod, a piston sleeve, a second gasket, a main spring, a main control end and a first gasket in sequence along the direction close to the end of the outer shell. The main control seat is assembled between the main control sleeve and the sealing seat, and the piston rod is slidably penetrated on the spring stop seat.

[0008] Furthermore, a regulating seat is installed in the main control sleeve, and the regulating seat is located between the spring stop seat and the electromagnetic mechanism. The end of the piston rod away from the piston sleeve contacts the regulating seat, and a secondary spring is arranged between the regulating seat and the spring stop seat.

[0009] Further, the sealing seat is provided with a first sealing seat flow channel, the main control seat is provided with a first main control seat flow channel and a second main control seat flow channel, the main control end is provided with a first main control end flow channel and a second main control end flow channel, the piston sleeve is provided with a first piston sleeve flow channel, a second piston sleeve flow channel and a third piston sleeve flow channel, the piston sleeve first flow channel is provided with a plurality of piston sleeve first flow channels evenly distributed on the side wall of the piston sleeve in a circumferential manner, the spring stop seat is provided with a first spring stop seat flow channel, the regulating seat is provided with a first regulating seat flow channel, and the main control sleeve is provided with a main control sleeve The first flow channel, the second flow channel of the main control sleeve and the third flow channel of the main control sleeve, wherein the two ends of the first flow channel of the sealing seat are respectively connected to the valve groove B and the first flow channel of the main control seat, and the first flow channel of the main control seat, the second flow channel of the main control seat, the first flow channel of the main control end, the second flow channel of the main control end, the first flow channel of the piston sleeve, the second flow channel of the piston sleeve, the third flow channel of the piston sleeve, the first flow channel of the spring stop seat, the first flow channel of the regulating seat, the first flow channel of the main control sleeve, the second flow channel of the main control sleeve, and the third flow channel of the main control sleeve are connected in sequence, and the third flow channel of the main control sleeve is connected to the inner hole of the one-way valve seat A on the side of the outer shell.

[0010] Furthermore, the electromagnetic mechanism includes a limiting structure, a driving assembly, a guiding structure, an embedded body, a magnetic seat and a coil assembly; the embedded body is threadedly connected to the outer shell; the limiting structure is assembled in the embedded body and contacts the main control sleeve; the guiding structure is assembled in the bottom hole of the embedded body; the driving assembly is slidably assembled in the guiding structure; the regulating seat is located on the moving path of the driving assembly; the coil assembly is assembled to the outer circle of the embedded body; the magnetic seat is threadedly connected to the embedded body and presses the coil assembly.

[0011] Furthermore, a coil assembly sealing ring is installed in the sealing ring groove of the coil assembly, and an inline body sealing ring is installed in the sealing ring groove of the inline body.

[0012] Furthermore, the two sealing ring grooves of the sealing seat are both equipped with sealing seat sealing rings, and the sealing ring groove of the outer wall of the outer shell is equipped with an outer shell sealing ring.

[0013] The beneficial effects of the present invention are:

[0014] Through the setting of one-way valve structure A and one-way valve structure B, the fluid can only flow in one direction, that is, the fluid flows into the one-way valve structure B and flows out of the one-way valve structure A, forming a proportional solenoid valve. When the current obtained by the coil assembly is larger, that is, the electromagnetic force is larger, the gap between the piston rod and the piston sleeve will be smaller, so that a linear product performance curve can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a built-in proportional solenoid valve for a shock absorber according to the present invention;

[0016] Figure 2 It is a right side view of a built-in proportional solenoid valve for a shock absorber of the present invention;

[0017] Figure 3 for Figure 2 Middle AA section view;

[0018] Figure 4 for Figure 2 Middle BB section view;

[0019] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 6 for Figure 4 Enlarged view of point B in the middle;

[0021] Figure 7 for Figure 4 Enlarged view of point C in the middle;

[0022] In the figure, 1-valve seat, 2-tower spring A, 3-check valve seat A, 4-steel ball A, 5-outer shell, 6-sealing seat, 7-main control sleeve, 8-main spring, 9-second gasket, 10-inlaid body sealing ring, 11-secondary spring, 12-regulating seat, 13-limiting structure, 14-driving assembly, 15-guide structure, 17-coil assembly sealing ring, 18-sealing seat sealing ring, 19-main control seat, 20-first gasket, 21-outer shell sealing ring, 22-main control end, 23-piston sleeve, 24-spring stop seat, 25-piston rod, 26- Inlay, 28-coil assembly, 30-magnetic seat, 31-check valve seat B, 32-steel ball B, 33-tower spring B, 41-first flow channel of sealing seat, 42-first flow channel of main control seat, 43-second flow channel of main control seat, 44-second flow channel of main control end, 45-second flow channel of main control sleeve, 46-first flow channel of main control sleeve, 47-first flow channel of regulating seat, 48-third flow channel of piston sleeve, 49-first flow channel of spring stop seat, 50-first flow channel of piston sleeve, 51-second flow channel of piston sleeve, 52-third flow channel of main control sleeve, 53-first flow channel of main control end. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0024] Embodiment 1

[0025] like Figures 1 to 7 As shown, a built-in proportional solenoid valve for a shock absorber includes a hydraulic structure and an electromagnetic mechanism assembled together, the hydraulic structure includes an outer shell 5, a one-way valve structure A and a one-way valve structure B, the end face and side face of the outer shell 5 are both provided with the one-way valve structure A and the one-way valve structure B, the fluid enters the solenoid valve in one direction through the one-way valve structure B, and then flows out from the one-way valve structure A, a first flow mode and a second flow mode are formed in the outer shell 5, the first flow mode: flows in from the one-way valve structure B on the end face of the outer shell 5, and flows out from the one-way valve structure A The second circulation mode: the fluid flows in from the one-way valve structure B on the side of the outer shell 5 and flows out from the one-way valve structure A on the end face of the outer shell 5. The one-way valve structure A and the one-way valve structure B are set so that the fluid can only flow in one direction, that is, the fluid flows in from the one-way valve structure B and flows out from the one-way valve structure A to form a proportional solenoid valve. Secondly, a double valve core design is adopted, that is, the one-way valve structure A and the one-way valve structure B, which can adjust the hydraulic linearity of the two circulation modes (i.e., shock absorber compression and recovery) respectively.

[0026] Embodiment 2

[0027] Based on the first embodiment, Figures 1 to 6As shown, the one-way valve structure A includes a valve seat 1, a one-way valve seat A3, a steel ball A4 and a tower spring A2. The outer shell 5 is provided with a valve slot A at the position where the one-way valve structure A is set. The one-way valve seat A3 is fixedly assembled in the valve slot A. The inner diameter of the one-way valve seat A3 gradually decreases along the direction close to the outer shell 5. The steel ball A4 is assembled in the one-way valve seat A3. The large diameter end of the one-way valve seat A3 is equipped with the valve seat 1. The tower spring A2 is assembled between the valve seat 1 and the steel ball A4. Under the action of the tower spring A2, the steel ball A4 blocks the inner hole of the one-way valve seat A3. Under the action of the fluid pressure inside the outer shell 5, the steel ball A4 compresses the tower spring A2 to move, so that the fluid flows out of the solenoid valve, thereby realizing the one-way outflow of the fluid; the one-way valve structure B includes a one-way valve seat A3. Valve seat B31, steel ball B32 and tower spring B33, the outer shell 5 is provided with a valve slot B at the position where the one-way valve structure B is set, and a flow hole connected to the valve slot B is set in the outer shell 5, the one-way valve seat B31 is fixedly assembled in the valve slot B, the inner hole diameter of the one-way valve seat B31 gradually decreases in the direction away from the outer shell 5, the steel ball B32 is assembled in the inner hole of the one-way valve seat B31, and the tower spring B33 is arranged between the steel ball B32 and the flow hole, under the action of the tower spring B33, the steel ball B32 blocks the inner hole of the one-way valve seat B31, and under the external fluid pressure of the electromagnet, the steel ball B32 squeezes the tower spring B33, so that the inner hole of the one-way valve seat B31 is connected with the valve slot B, so that the fluid enters the solenoid valve in one direction.

[0028] Embodiment 3

[0029] Based on the second embodiment, Figures 1 to 7As shown, the hydraulic structure also includes a main control sleeve 7, a main control seat 19 and a sealing seat 6 assembled in the outer shell 5. The main control sleeve 7 is equipped with a spring stop seat 24, a piston rod 25, a piston sleeve 23, a second gasket 9, a main spring 8, a main control end 22 and a first gasket 20 in sequence along the direction close to the end of the outer shell 5. The main control seat 19 is assembled between the main control sleeve 7 and the sealing seat 6. The piston rod 25 is slidably penetrated on the spring stop seat 24. The main control sleeve 7 is equipped with a regulating seat 12, which is located between the spring stop seat 24 and the electromagnetic mechanism. The end of the piston rod 25 away from the piston sleeve 23 contacts the regulating seat 12. An auxiliary spring 11 is arranged between the regulating seat 12 and the spring stop seat 24. The sealing seat 6 A sealing seat first flow channel 41 is opened on the main control seat 19, a main control seat first flow channel 42 and a main control seat second flow channel 43 are opened on the main control seat, a main control end first flow channel 53 and a main control end second flow channel 44 are opened on the main control end 22, a piston sleeve first flow channel 50, a piston sleeve second flow channel 51 and a piston sleeve third flow channel 48 are opened on the piston sleeve 23, and a plurality of piston sleeve first flow channels 50 are evenly distributed on the side wall of the piston sleeve 23 in a circumferential manner, a spring stop seat first flow channel 49 is opened on the spring stop seat 24, a regulating seat first flow channel 47 is opened on the regulating seat 12, and a main control sleeve first flow channel 46, a main control sleeve second flow channel 45 and a main control sleeve third flow channel 52 are opened on the main control sleeve 7, wherein the sealing seat first The two ends of a flow channel 41 are connected to the valve groove B and the first flow channel 42 of the main control seat respectively, and the first flow channel 42 of the main control seat, the second flow channel 43 of the main control seat, the first flow channel 53 of the main control end, the second flow channel 44 of the main control end, the first flow channel 50 of the piston sleeve, the second flow channel 51 of the piston sleeve, the third flow channel 48 of the piston sleeve, the first flow channel 49 of the spring stop seat, the first flow channel 47 of the regulating seat, the first flow channel 46 of the main control sleeve, the second flow channel 45 of the main control sleeve, and the third flow channel 52 of the main control sleeve are connected in sequence, and the third flow channel 52 of the main control sleeve is connected to the inner hole of the one-way valve seat A3 on the side of the outer shell 5; in the first circulation mode, the fluid flows into the first flow channel 41 of the sealing seat through the one-way valve structure B evenly distributed on the end surface of the product, and then enters the main control seat The first flow channel 42 and the second flow channel 43 of the main control seat, and then the fluid exerts a hydraulic pressure on the end surface of the main control end 22 to push the main control end 22 to overcome the force of the main spring 8 and move to the right, so that the second flow channel 43 of the main control seat is connected with the third flow channel 52 of the main control sleeve, and part of the fluid flows into the first flow channel 50 of the piston sleeve, the second flow channel 51 of the piston sleeve and the third flow channel 48 of the piston sleeve through the first flow channel 53 of the main control end and the second flow channel 44 of the main control end, and then flows to the first flow channel 47 of the regulating seat through the first flow channel 49 of the spring stop seat, and then flows to the first flow channel 46 of the main control sleeve and the second flow channel 45 of the main control sleeve and merges with the fluid flowing out of the third flow channel 52 of the main control sleeve, and finally flows out through the one-way valve structure A evenly distributed on the side of the product;

[0030] The second circulation mode: the fluid flows into the first flow channel 41 of the sealing seat through the one-way valve structure B evenly distributed on the side of the product, and then enters the first flow channel 42 of the main control seat and the second flow channel 43 of the main control seat. Then, the fluid applies liquid pressure on the end face of the main control end 22 to push the main control end 22 to move to the right against the force of the main spring 8, so that the second flow channel 43 of the main control seat is connected with the third flow channel 52 of the main control sleeve. Part of the fluid flows into the first flow channel 50 of the piston sleeve, the second flow channel 51 of the piston sleeve and the third flow channel 48 of the piston sleeve through the first flow channel 53 of the main control end and the second flow channel 44 of the main control end, and then flows to the first flow channel 47 of the regulating seat through the first flow channel 49 of the spring stop seat, and then flows to the first flow channel 46 of the main control sleeve and the second flow channel 45 of the main control sleeve and merges with the fluid flowing out of the third flow channel 52 of the main control sleeve, and finally flows out through the one-way valve structure A evenly distributed on the end face of the product.

[0031] Embodiment 4

[0032] Based on the third embodiment, Figures 1 to 5 As shown, the electromagnetic mechanism includes a limiting structure 13, a driving assembly 14, a guiding structure 15, an inlay 26, a magnetic seat 30 and a coil assembly 28. The inlay 26 is threadedly connected to the outer shell 5. The limiting structure 13 is assembled in the inlay 26 and contacts the main control sleeve 7. The guiding structure 15 is assembled in the bottom hole of the inlay 26. The driving assembly 14 is slidably assembled in the guiding structure 15. The regulating seat 12 is located on the moving path of the driving assembly 14. The coil assembly 28 is assembled to the outer circle of the inlay 26. The magnetic seat 30 is threadedly connected to the inlay 26 and presses the coil assembly 28. After the coil assembly 28 is energized, an electromagnetic force is generated to push the driving assembly 14 to move to the left to separate the regulating seat 12 from the end face of the limiting structure 13, and the fluid can flow through the gap therein; when the energized current is larger, that is, the electromagnetic force is larger, the gap between the piston rod 25 and the piston sleeve 23 will be smaller, so that a linear product performance curve can be obtained.

[0033] Furthermore, a coil assembly sealing ring 17 is installed in the sealing ring groove of the coil assembly 28 to improve the sealing performance of the assembly position of the coil assembly 28, and an embedded body sealing ring 10 is installed in the sealing ring groove of the embedded body 26 to improve the sealing performance of the assembly position of the embedded body 26; sealing seat sealing rings 18 are installed in the two sealing ring grooves of the sealing seat 6 to improve the sealing performance of the assembly position between the sealing seat 6 and the outer shell 5, and an outer shell sealing ring 21 is installed in the sealing ring groove of the outer wall of the outer shell 1.

Claims

1. A built-in proportional solenoid valve for a shock absorber, comprising a hydraulic structure and an electromagnetic mechanism assembled together, characterized in that: The hydraulic structure comprises an outer shell (5), a one-way valve structure A and a one-way valve structure B. The one-way valve structure A and the one-way valve structure B are arranged on the end face and the side face of the outer shell (5). The fluid enters the solenoid valve in one direction through the one-way valve structure B and then flows out from the one-way valve structure A. A first flow mode and a second flow mode are formed in the outer shell (5). The first flow mode is to flow in from the one-way valve structure B on the end face of the outer shell (5) and flow out from the one-way valve structure A on the side face of the outer shell (5); the second flow mode is to flow in from the one-way valve structure B on the side face of the outer shell (5) and flow out from the one-way valve structure A on the end face of the outer shell (5).

2. A built-in proportional solenoid valve for a shock absorber according to claim 1, characterized in that: The one-way valve structure A comprises a valve seat (1), a one-way valve seat A (3), a steel ball A (4) and a tower spring A (2); the outer shell (5) is provided with a valve slot A at a position where the one-way valve structure A is provided; the one-way valve seat A (3) is fixedly mounted in the valve slot A; the inner diameter of the one-way valve seat A (3) gradually decreases in a direction approaching the outer shell (5); the steel ball A (4) is mounted in the one-way valve seat A (3); the large diameter end of the one-way valve seat A (3) is provided with the valve seat (1); and the tower spring A (2) is mounted between the valve seat (1) and the steel ball A (4).

3. A built-in proportional solenoid valve for a shock absorber according to claim 2, characterized in that: The one-way valve structure B comprises a one-way valve seat B (31), a steel ball B (32) and a tower spring B (33); the outer shell (5) is provided with a valve slot B at a position where the one-way valve structure B is provided; the outer shell (5) is provided with a flow hole connected to the valve slot B; the one-way valve seat B (31) is fixedly assembled in the valve slot B; the inner hole diameter of the one-way valve seat B (31) gradually decreases in a direction away from the outer shell (5); the steel ball B (32) is assembled in the inner hole of the one-way valve seat B (31); and the tower spring B (33) is arranged between the steel ball B (32) and the flow hole.

4. A built-in proportional solenoid valve for a shock absorber according to claim 3, characterized in that: The hydraulic structure further comprises a main control sleeve (7), a main control seat (19) and a sealing seat (6) which are assembled in the outer shell (5); a spring stop seat (24), a piston rod (25), a piston sleeve (23), a second gasket (9), a main spring (8), a main control end (22) and a first gasket (20) are sequentially assembled in the main control sleeve (7) along the direction close to the end of the outer shell (5); the main control seat (19) is assembled between the main control sleeve (7) and the sealing seat (6); and the piston rod (25) is slidably inserted into the spring stop seat (24).

5. A built-in proportional solenoid valve for a shock absorber according to claim 4, characterized in that: The main control sleeve (7) is equipped with a regulating seat (12), and the regulating seat (12) is located between the spring stop seat (24) and the electromagnetic mechanism. The end of the piston rod (25) away from the piston sleeve (23) contacts the regulating seat (12), and an auxiliary spring (11) is arranged between the regulating seat (12) and the spring stop seat (24).

6. A built-in proportional solenoid valve for a shock absorber according to claim 5, characterized in that: The sealing seat (6) is provided with a sealing seat first flow channel (41), the main control seat (19) is provided with a main control seat first flow channel (42) and a main control seat second flow channel (43), the main control end (22) is provided with a main control end first flow channel (53) and a main control end second flow channel (44), the piston sleeve (23) is provided with a piston sleeve first flow channel (50), a piston sleeve second flow channel (51) and a piston sleeve third flow channel (48), a plurality of piston sleeve first flow channels (50) are evenly distributed on the side wall of the piston sleeve (23), the spring stop seat (24) is provided with a spring stop seat first flow channel (49), the regulating seat (12) is provided with a regulating seat first flow channel (47), and the main control sleeve (7) is provided with a main control sleeve first flow channel ( 46), the second flow channel (45) of the main control sleeve and the third flow channel (52) of the main control sleeve, wherein the two ends of the first flow channel (41) of the sealing seat are connected to the valve groove B and the first flow channel (42) of the main control seat respectively, and the first flow channel (42) of the main control seat, the second flow channel (43) of the main control seat, the first flow channel (53) of the main control end, the second flow channel (44) of the main control end, the first flow channel (50) of the piston sleeve, the second flow channel (51) of the piston sleeve, the third flow channel (48) of the piston sleeve, the first flow channel (49) of the spring stop seat, the first flow channel (47) of the regulating seat, the first flow channel (46) of the main control sleeve, the second flow channel (45) of the main control sleeve, and the third flow channel (52) of the main control sleeve are connected in sequence, and the third flow channel (52) of the main control sleeve is connected to the inner hole of the one-way valve seat A (3) on the side of the outer shell (5).

7. A built-in proportional solenoid valve for a shock absorber according to claim 1, characterized in that: The electromagnetic mechanism comprises a limiting structure (13), a driving assembly (14), a guiding structure (15), an embedded body (26), a magnetic seat (30) and a coil assembly (28); the embedded body (26) is threadedly connected to the outer shell (5); the limiting structure (13) is assembled in the embedded body (26) and contacts the main control sleeve (7); the guiding structure (15) is assembled in the bottom hole of the embedded body (26); the driving assembly (14) is slidably assembled in the guiding structure (15); the regulating seat (12) is located on the moving path of the driving assembly (14); the coil assembly (28) is assembled to the outer circle of the embedded body (26); the magnetic seat (30) is threadedly connected to the embedded body (26) and presses the coil assembly (28).

8. A built-in proportional solenoid valve for a shock absorber according to claim 7, characterized in that: A coil assembly sealing ring (17) is installed in the sealing ring groove of the coil assembly (28), and an inlay sealing ring (10) is installed in the sealing ring groove of the inlay (26).

9. A built-in proportional solenoid valve for a shock absorber according to claim 4, characterized in that: The two sealing ring grooves of the sealing seat (6) are both equipped with sealing seat sealing rings (18), and the sealing ring groove of the outer wall of the outer shell (1) is equipped with an outer shell sealing ring (21).

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