CDC damping valve

Abstract

According to the CDC damping valve, a valve body assembly (2) is arranged in an outer shell (1), a coil assembly (3) is arranged on the valve body assembly (2) in a sleeved mode, a coil gland (4) is pressed on the valve body assembly (2) and the coil assembly (3), the coil assembly (3) comprises a coil winding (3.1) arranged on the valve body assembly (2) in a sleeved mode, a limiting strip (3.2) is erected on the top of the coil winding (3.1), and the limiting strip (3.2) is arranged on the outer shell (1). A limiting strip (3.2) is arranged on the outer shell (1), a lead-out wire column (3.3) is vertically arranged on the limiting strip (3.2), the lead-out wire column (3.3) penetrates out of the coil gland (4) and the outer shell (1), a lead-out wire of the coil winding (3.1) passes through the limiting strip (3.2) and then is led out by the lead-out wire column (3.3), and a sealing ring is sleeved on the lead-out wire column (3.3). The CDC damping valve has the advantage of being good in sealing performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a CDC damping valve, especially a CDC damping valve with excellent sealing performance, and belongs to the technical field of valves. BACKGROUND

[0002] CDC (Continuous Damping Control) is a new automobile damping system with the function of "automatic adjustment and uninterrupted damping control system", and its core is a damper based on a solenoid valve, such as the "built-in solenoid valve type variable damping damper" of Chinese patent CN2018112729186, which adjusts the oil in the liquid storage cylinder to achieve a buffering effect. Since the damper constructed by the solenoid valve is built in the liquid storage cylinder, the sealing requirement is extremely high, especially between the lead-out wire of the solenoid valve and the outer shell of the solenoid valve. The conventional structure of the CDC solenoid valve lacks a sealing structure, so after the CDC is used frequently for a period of time, oil leakage may occur due to the fitting gap or wear, which affects the response time and characteristic curve of the electromagnet, and thus affects the buffering effect of the oil adjustment and the damping effect of the corresponding automobile. Therefore, a CDC damping valve with high sealing effect is needed. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned shortcomings, and provides a CDC damping valve with good sealing performance.

[0004] The utility model aims at overcoming the above-mentioned shortcomings, and provides a CDC damping valve with good sealing performance.

[0005] A CDC damping valve is provided, which comprises a valve body assembly arranged in an outer shell, a coil assembly sleeved on the valve body assembly, a coil gland compressed on the valve body assembly and the coil assembly, a coil winding contained in the coil assembly, a limiting strip arranged on the top of the coil winding, a lead-out wire column vertically arranged on the limiting strip, the lead-out wire column penetrating the coil gland and the outer shell, the lead-out wire of the coil winding being led out by the lead-out wire column after penetrating the limiting strip, and a sealing ring sleeved on the lead-out wire column.

[0006] Preferably, the two lead-out wires of the coil winding penetrate the limiting strip from both ends of the limiting strip and are led out upward by the lead-out wire column after penetrating the lead-out wire column.

[0007] Preferably, the center of the coil gland is provided with a through hole for the lead-out wire column to penetrate, the bottom surface of the coil gland is provided with a limiting groove for the limiting strip to be embedded, and a positioning pin is vertically arranged downward on the bottom surface of the coil gland, and a positioning counterbore is arranged on the top surface of the valve body of the valve body assembly for the positioning pin to be inserted.

[0008] Preferably, an annular sealing groove is arranged on the lead-out wire column for the first sealing ring to be embedded, and the first sealing ring is in close contact with the hole wall of the outer shell.

[0009] Preferably, the bottom of the hole wall of the outer shell is provided with a conical surface, and the sealing ring II sleeved on the lead-out wire post is located in the annular space formed between the conical surface and the top surface of the coil cover.

[0010] Preferably, the limiting strip and the lead-out wire post are formed by injection molding of the lead-out wire of the coil winding.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a sealing ring improves the sealing effect between the lead-out wire post of coil assembly and outer shell, and simultaneously through the improved design of coil assembly and coil cover, utilizes the design of limiting strip and limiting groove to avoid radial rotation, thereby making the sealing effect of sealing ring better, and utilizes the guiding effect of positioning pin and positioning counterbore to facilitate the assembly of coil assembly and coil cover, and the matching of limiting strip and limiting groove plays the guiding effect, and the assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic drawing of a CDC damping valve of the utility model.

[0014] Figure 2 It is the structure schematic drawing of another embodiment of a CDC damping valve of the utility model.

[0015] Figure 3 It is the structure schematic drawing of the valve body assembly of a CDC damping valve of the utility model.

[0016] Figure 4 It is the structure schematic drawing of the coil assembly of a CDC damping valve of the utility model.

[0017] Figure 5 It is the front view of a CDC damping valve of the utility model. Figure 4

[0018] Figure 6 It is the sectional view of a CDC damping valve of the utility model. Figure 4

[0019] Figure 7 It is the structure schematic drawing of the coil cover of a CDC damping valve of the utility model.

[0020] Figure 8 It is the sectional view of the coil cover of a CDC damping valve of the utility model.

[0021] Figure 9 It is the application state schematic drawing of a CDC damping valve of the utility model.

[0022] Wherein:​​

[0023] The shell body 1, the valve body assembly 2, the coil assembly 3, the coil gland 4, the sealing ring one 5, the sealing ring two 6;

[0024] The conical surface 1.1;

[0025] The valve body 2.1, the moving iron core assembly 2.2, the adjusting screw 2.3, the conical valve core 2.4, the movable valve seat 2.5, the throttle ring 2.6, the throttle ring valve seat 2.7;

[0026] The positioning counterbore 2.1.1;

[0027] The coil winding 3.1, the limiting strip 3.2, the lead-out post 3.3;

[0028] The through hole 4.1, the positioning pin 4.2, the limiting groove 4.3. DETAILED DESCRIPTION

[0029] Referring to Figures 1-9 The utility model relates to a CDC damping valve, the shell body 1 of CDC damping valve is slidably inserted in the liquid storage cylinder in use, is provided with the valve body assembly 2 in the shell body 1, the coil assembly 3 is sleeved on the valve body assembly 2, and there is a coil gland 4 and is pressed together on the valve body assembly 2 and coil assembly 3, thereby through the coil gland 4 with the valve body assembly 2 and coil assembly 3 are assembled into a whole and are loaded into the shell body 1.

[0030] Specifically: coil assembly 3 contains the coil winding 3.1 (the coil winding 3.1 is made of wire winding on the coil holder) that is sleeved on the valve body assembly 2, the top of the coil winding 3.1 is erected with a limiting strip 3.2, and when the coil winding 3.1 is sleeved on the valve body assembly 2, the limiting strip 3.2 is embedded in the embedding groove on the top of the valve body 2.1 of the valve body assembly 2, and the limiting strip 3.2 is vertically provided with a lead-out post 3.3, the lead-out post 3.3 passes through the coil gland 4 and the shell body 1, and the two lead-out wires of the coil winding 3.1 are respectively inserted into the lead-out post 3.3 after passing through the two ends of the limiting strip 3.2, and are led out upward from the lead-out post 3.3; the lead-out post 3.3 is sleeved with a sealing ring.

[0031] Meanwhile, the center of the coil gland 4 is provided with the through hole 4.1 for the lead-out post 3.3 to pass through, the bottom surface of the coil gland 4 is provided with the limiting groove 4.3 for the limiting strip 3.2 to embed, and the bottom surface of the coil gland 4 is vertically downward provided with a positioning pin 4.2, the top surface of the valve body 2.1 of the valve body assembly 2 is provided with a positioning counterbore 2.1.1 for the positioning pin 4.2 to insert, thereby through the limiting assembly of the valve body assembly 2, the coil assembly 3 and the coil gland 4, the relative rotation between the valve body assembly 2 and the coil assembly 3 is avoided, and the reliability of sealing is favorable.

[0032] Further, the lead-out post 3.3 is provided with an annular sealing groove for embedding the sealing ring 5, so that the embedded sealing ring 5 is in close contact with the hole wall of the outer shell 1 (the through hole is a through hole for the lead-out post 3.3 of the outer shell 1 to pass through); or a conical surface 1.1 is arranged at the bottom of the hole wall of the outer shell 1 (the through hole is a through hole for the lead-out post 3.3 of the outer shell 1 to pass through), and the sealing ring 6 sleeved on the lead-out post 3.3 is located in the annular space formed between the conical surface 1.1 and the top surface of the coil cover 4, so as to realize more strict sealing.

[0033] Further, the limiting strip 3.2 and the lead-out post 3.3 are formed by injection molding of the lead-out wire of the coil winding 3.1, that is, the coil winding 3.1, the limiting strip 3.2 and the lead-out post 3.3 are integrally formed by injection molding.

[0034] At the same time, the upper part of the valve body 2.1 of the valve body assembly 2 is provided with a moving iron core assembly 2.2, and the moving iron core assembly 2.2 can be adjusted by the adjusting screw 2.3 screwed on the top of the valve body 2.1. The moving iron core assembly 2.2 pushes the conical valve core 2.4 to press fit on the movable valve seat 2.5. The movable valve seat 2.5 is arranged in opposition to the throttle ring 2.6, and the throttle ring 2.6 is slidably arranged on the throttle ring valve seat 2.7. When the CDC shock absorber valve descends in the reservoir, the oil in the lower cavity of the reservoir is introduced through the oil port A, and then the oil is introduced into the upper cavity of the reservoir through the oil port B after passing between the movable valve seat 2.5 and the throttle ring 2.6, because the acting area of the lower surface of the movable valve seat 2.5 is greater than that of the upper surface. At this time, the oil enters the oil port B and the pilot oil port C, and the oil entering the pilot oil port C enters the throttle ring 2.6 after passing through the movable valve seat 2.5, so that the upper and lower oils are balanced, realizing the follow-up effect of the movable valve seat 2.5 and the throttle ring 2.6, and both of them move upward, so that the oil in the oil port B will be introduced into the lower cavity of the reservoir through the oil port A after passing through the gap between the throttle ring 2.6 and the throttle ring valve seat 2.7.

[0035] In addition: It should be noted that the above specific embodiments are only one optimization scheme of the patent, and any changes or improvements made by those skilled in the art based on the above concept are within the protection scope of the patent.

Claims

1. A CDC shock absorber valve, a valve body assembly (2) is arranged in a shell body (1), a coil assembly (3) is sleeved on the valve body assembly (2), and a coil gland (4) is pressed on the valve body assembly (2) and the coil assembly (3), characterized in that: the coil assembly (3) comprises a coil winding (3.1) sleeved on the valve body assembly (2), a limiting strip (3.2) is arranged on the top of the coil winding (3.1), and a lead post (3.3) is vertically arranged on the limiting strip (3.2), the lead post (3.3) penetrates the coil gland (4) and the shell body (1), the lead post (3.3) leads out the lead wire of the coil winding (3.1) after the lead wire penetrates the limiting strip (3.2), and a sealing ring is sleeved on the lead post (3.3). The two lead wires of the coil winding (3.1) penetrate the limiting strip (3.2) from both ends of the limiting strip (3.2) and then penetrate the lead post (3.3) and are led out upward from the lead post (3.3).

2. The CDC shock absorber valve of claim 1, wherein: The center of the coil gland (4) is provided with a through hole (4.1) for the lead post (3.3) to penetrate, the bottom surface of the coil gland (4) is provided with a limiting groove (4.3) for the limiting strip (3.2) to be embedded, and the bottom surface of the coil gland (4) is vertically provided with a positioning pin (4.2) downward, the top surface of a valve body (2.1) constituting the valve body assembly (2) is provided with a positioning counterbore (2.1.1) for the positioning pin (4.2) to be inserted.

3. The CDC shock absorber valve of claim 1, wherein: The lead post (3.3) is provided with an annular sealing groove for the sealing ring (5) to be embedded, and the sealing ring (5) is in close contact with the hole wall of the shell body (1).

4. The CDC shock absorber valve of claim 1, wherein: The bottom of the hole wall of the shell body (1) is provided with a conical surface (1.1), and a sealing ring (6) sleeved on the lead post (3.3) is located in the annular space between the conical surface (1.1) and the top surface of the coil gland (4).

5. The CDC shock absorber valve of claim 1, wherein: The limiting strip (3.2) and the lead post (3.3) are formed by injection molding of the lead wire of the coil winding (3.1).

6. The CDC relief valve of claim 1, wherein: ​

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