An electronically controlled damping valve and shock absorber

Abstract

The utility model discloses an electric control damping valve and shock absorber, electric control damping valve includes valve body, stationary and drive assembly, is equipped with valve cavity and release opening on the valve body, and valve cavity is connected with outside through release opening, stationary is fixedly arranged in the valve cavity, and drive assembly is slidably arranged in the valve cavity, stationary includes the normally open valve for intercommunication and control release opening flow area, correspondingly, the reciprocating motion of drive assembly is used to control the opening of normally open valve to control the flow area of release opening, shock absorber includes electric control damping valve. Through setting release opening, make electric control damping valve configuration as normally open valve, also have certain regulation ability under stationary state, through stationary and drive assembly cooperation, thereby adjust the flow area of release opening, realize the function of adjusting damping force on demand, help to realize the reduction of electric control damping valve overall power consumption.

Description

Technical Field

[0001] This utility model relates to the field of electronically controlled valve technology, specifically to an electronically controlled damping valve and a vibration damper. Background Technology

[0002] A shock absorber is a device used to reduce the amplitude of vibration waves. Its core function is to convert mechanical vibration energy into heat or other forms of dissipation through damping force. In the automotive field, shock absorbers are often installed in parallel with elastic elements (such as springs) to suppress the reciprocating vibration of the suspension system caused by road impacts, thereby improving ride comfort. Their working principle is based on the physical properties of hydraulic or elastic materials. For example, a hydraulic shock absorber uses piston movement to cause oil to flow within a cavity, generating frictional resistance to achieve energy conversion.

[0003] Damping valves are the core components of vibration dampers. In the existing technology, the existing damping valves are normally closed valves that can provide large damping, but they have high energy consumption and poor economic efficiency during use. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing damping valves have high energy consumption and poor economic efficiency. The purpose is to provide an electronically controlled damping valve and a shock absorber to solve the above problems.

[0005] This utility model is achieved through the following technical solution:

[0006] In the first aspect, this utility model provides an electrically controlled damping valve, including a valve body, a plug, and a drive assembly;

[0007] The valve body has a valve cavity and a release opening, and the valve cavity is connected to the outside through the release opening; the plug is fixedly installed on the valve body and used to seal the valve cavity, and the drive assembly is slidably installed in the valve cavity;

[0008] The plug is equipped with a normally open valve for connecting and controlling the flow area of ​​the release opening. Correspondingly, the reciprocating motion of the drive component acts on the opening degree of the normally open valve to control the flow area of ​​the release opening.

[0009] In one possible design, one end of the valve chamber is open and connected to the outside, and a plug is used to seal the open end of the valve chamber accordingly.

[0010] The plug is provided with a support seat and a valve block. The support seat is provided on the plug and extends into the valve cavity. The valve block is slidably provided in the valve cavity. The valve block is connected to the support seat through a first elastic component. The end of the valve block abuts against the normally open valve.

[0011] Accordingly, when the drive assembly reciprocates, the valve block and the normally open valve reciprocate through the first elastic component to control the opening area of ​​the normally open valve.

[0012] In one possible design, the drive assembly includes a pole cap, a transmission rod, and a drive element;

[0013] The pole cap is fixed on the valve body and has an oil passage. The transmission rod slides through the pole cap. Correspondingly, both ends of the valve body are open, with a plug at one end and a pole cap at the other end.

[0014] Of the two ends of the transmission rod, one end extends toward the valve block and the other end extends toward the drive component; the drive component is used to drive the transmission rod to reciprocate in the valve cavity.

[0015] In one possible design, the transmission rod includes a rod body and an end cap; one end of the rod body is connected to the end cap, and the other end extends toward the drive member; the end cap is provided with an elastic element for cushioning.

[0016] In one possible design, a cleaning channel is provided between the pole cap and the valve body, and correspondingly, a cleaning hole is provided on the valve body, which connects the outside world with the cleaning channel.

[0017] In one possible design, the drive components include a seal holder, a driver, a moving core, a pivot, an intermediate valve, and a plug;

[0018] One end of the sealing frame is connected to the pole cap, the other end of the pole cap is connected to the valve body, and the other end of the sealing frame is connected to the inner sleeve. Correspondingly, the sealing frame is provided with an installation hole that communicates with the inner sleeve.

[0019] The driver is mounted on the sealing frame, and the drive end of the driver is connected to the moving core; the moving core is slidably mounted on the mounting hole and extends into the inner sleeve, and the inner circumference of the moving core is provided with a working hole;

[0020] A pivot, an intermediate valve, and a plug are connected to form a drive rod that passes through a working hole. One end of the drive rod is connected to a transmission rod via a pivot, and the other end of the drive rod is fitted with a plug.

[0021] In one possible design, a second elastic component for resetting is fitted on the upper part of the pivot, and a fourth elastic component for resetting is fitted on the lower part of the pivot; an intermediate valve is used to control whether the two ends of the working hole are connected, and the intermediate valve is connected to the plug through a third elastic component;

[0022] The two ends of the second elastic component abut against the bushing and the moving core on the pole cover, respectively; the two ends of the fourth elastic component abut against the moving core and the bushing, respectively; correspondingly, the moving core is provided with additional holes for accommodating the second elastic component and the fourth elastic component.

[0023] In one possible design, the valve body is fitted with an additional rod for connecting other components. The additional rod has a cavity for fitting the valve body and the drive assembly and an additional channel for communicating with the outside world. The additional channel communicates with a cleaning hole on the valve body.

[0024] The drive assembly includes a sealing frame that is connected to an additional rod via a yoke; correspondingly, a gap adapted to the drive assembly is provided between the additional rod and the yoke.

[0025] In one possible design, the sealing frame is equipped with a sealing mechanism, and correspondingly, the sealing frame is connected to an additional rod via the sealing mechanism.

[0026] Secondly, this utility model provides a vibration damper, including the aforementioned electronically controlled damping valve.

[0027] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0028] By setting a release opening, the electrically controlled damping valve is constructed as a normally open valve, which also has a certain adjustment capability in a static state. Through the cooperation between the stationary component and the drive component, the flow area of ​​the release opening is adjusted, thereby realizing the function of adjusting the damping force as needed, which helps to reduce the overall power consumption of the electrically controlled damping valve. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of an electrically controlled damping valve.

[0031] Figure 2 for Figure 1 A partially enlarged structural diagram.

[0032] The attached diagram shows the markings and corresponding component names:

[0033] 10. Valve body; 101. Valve cavity; 102. Release opening; 103. Impurity removal hole; 21. Normally open valve; 22. Plug; 23. Support seat; 24. Valve block; 25. First elastic component; 26. Flow passage; 31. End cap; 32. Transmission rod; 321. Rod body; 322. End cap; 33. Drive component; 301. Impurity removal passage; 302. Sealing frame; 303. Driver; 304. Moving core; 305. Pivot; 306. Intermediate valve; 307. Plug; 308. Inner sleeve; 309. Second elastic component; 310. Third elastic component; 311. Fourth elastic component; 40. Additional rod; 401. Yoke. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0035] Example:

[0036] like Figure 1 and Figure 2 As shown, an electrically controlled damping valve includes a valve body 10, a plug 22, and a drive assembly;

[0037] The valve body 10 is provided with a valve cavity 101 and a release opening 102. The valve cavity 101 is connected to the outside through the release opening 102. The plug 22 is fixedly installed on the valve body 10 and is used to block the valve cavity 101. The drive assembly is slidably installed in the valve cavity 101.

[0038] The plug 22 is provided with a normally open valve 21 for connecting and controlling the flow area of ​​the release opening 102. Accordingly, the reciprocating motion of the drive component acts on the opening degree of the normally open valve 21 to control the flow area of ​​the release opening 102.

[0039] In the electrically controlled damping valve, a release opening 102 is provided to provide damping force, and the drive assembly can reciprocate relative to a stationary component. Based on this, the drive assembly drives the normally open valve 21, thereby controlling the opening degree of the normally open valve 21. Since the normally open valve 21 is connected to the release opening 102, the change in the opening degree of the normally open valve 21 will affect the flow area of ​​the release opening 102, thereby adjusting the magnitude of the damping force.

[0040] Therefore, by setting the release opening 102, the electrically controlled damping valve is constructed as a normally open valve 21, which also has a certain adjustment capability in the static state; by cooperating with the stationary component and the drive component, the flow area of ​​the release opening 102 is adjusted, thereby realizing the function of adjusting the damping force as needed, which helps to reduce the overall power consumption of the electrically controlled damping valve.

[0041] The plug 22 is connected to the valve body 10 via any suitable connection method, thereby sealing the valve chamber 101. If it is necessary to disassemble or assemble the electrically controlled damping valve, the plug 22 is removed, and the valve chamber 101 is connected to the outside, allowing operation of other components.

[0042] During operation, the drive assembly slides within valve chamber 101 according to the required damping force value until the opening of normally open valve 21 matches the required damping force. At this point, the drive assembly remains relatively stationary. Conversely, if the damping force needs to be adjusted again, the drive assembly slides again and stops at a specific position.

[0043] In one possible implementation, one end of the valve chamber 101 is open and connected to the outside, and correspondingly, the plug 22 is used to seal the open end of the valve chamber 101.

[0044] The plug 22 is provided with a support seat 23 and a valve block 24. The support seat 23 is provided on the plug 22 and extends into the valve cavity 101. The valve block 24 is slidably provided in the valve cavity 101. The valve block 24 is connected to the support seat 23 through the first elastic member 25. The end of the valve block 24 abuts against the normally open valve 21.

[0045] Accordingly, when the drive assembly reciprocates, the valve block 24 and the normally open valve 21 reciprocate through the first elastic member 25 to control the opening area of ​​the normally open valve 21.

[0046] Based on the above design, the support base 23 is used to increase the width of the gap between the stationary part and the drive component, especially when the drive component presses against the stationary part, to ensure that the normally open valve 21 is in the open state, and also to keep the release opening 102 in the connected state.

[0047] The support base 23 is connected to the valve block 24 via the first elastic component 25. The elastic force of the first elastic component 25 can serve as a buffer and reset mechanism, reducing the impact force on the drive assembly and enabling automatic reset. It is easy to understand that any suitable existing elastic component can be selected for the first elastic component 25.

[0048] The valve block 24 is a component that is directly connected to the drive assembly in the stationary part. In order to ensure that the damping force is effectively provided, the valve block 24 is provided with a channel structure for the flow of working fluid. The normally open valve 21 is also connected to the part of the valve chamber 101 located outside the valve block 24 through this channel structure.

[0049] During operation, the valve block 24 slides back and forth under the drive of the drive assembly. The normally open valve 21 is connected to the valve block 24 and moves accordingly, thereby adjusting the opening degree of the normally open valve 21. If the drive assembly disengages from the valve block 24, both the valve block 24 and the normally open valve 21 are reset under the action of the first elastic component 25, ensuring that the release opening 102 is always connected to the valve chamber 101.

[0050] Optionally, the valve block 24 is provided with a flow passage 26, which is used to connect the valve chamber 101, the normally open valve 21, and the release opening 102. Based on the above design, the flow passage 26, i.e., the channel structure, is easy to understand. The flow passage 26 can be constructed into any suitable shape, and the scheme is flexible and diverse to adapt to different application scenarios.

[0051] The valve body 10 has an inner bore, which is constructed to fit the stepped bore of the valve block 24. This improves the stability of the valve block 24 mounted on the valve body 10, ensuring that the valve block 24 can move as a whole under the drive of the drive assembly.

[0052] In one possible implementation, the drive assembly includes a pole cover 31, a transmission rod 32, and a drive element 33;

[0053] The pole cap 31 is fixed on the valve body 10 and has an oil passage. The transmission rod 32 slides and passes through the pole cap 31. Correspondingly, both ends of the valve body 10 are open, with a plug 22 at one end and a pole cap 31 at the other end.

[0054] Of the two ends of the transmission rod 32, one end extends toward the valve block 24 and the other end extends toward the drive member 33; the drive member 33 is used to drive the transmission rod 32 to reciprocate in the valve cavity 101.

[0055] Based on the above design, the pole cap 31 and the plug 22 in the stationary component cooperate to seal the valve cavity 101, forming a relatively sealed structure to ensure that the electronically controlled damping valve can effectively provide damping force. For the valve body 10, the valve cavity 101 can be formed by machining a through hole, which is simple in structure and convenient for production.

[0056] The transmission rod 32 is connected to the drive member 33, and the transmission rod 32 will slide back and forth along the pole cover 31 under the drive of the drive member 33. Correspondingly, when the transmission rod 32 presses against the valve block 24 of the stationary member, the transmission rod 32 is used to drive the valve block 24 to slide back and forth in the valve cavity 101, thereby adjusting the opening degree of the normally open valve 21.

[0057] Optionally, the transmission rod 32 includes a rod body 321 and an end cap 322; one end of the rod body 321 is connected to the end cap 322, and the other end extends toward the drive member 33; the end cap 322 is provided with an elastic element for cushioning. Based on this, the rod body 321 passes through the pole cap 31 and is connected to the drive member 33, and the end cap 322 is used to increase the cross-sectional area of ​​the transmission rod 32 to improve the transmission effect of the drive assembly.

[0058] When the electrically controlled damping valve is in operation, gaseous impurities may be mixed into the working fluid. In existing damping valves, damping force is provided and gaseous impurities are discharged by opening the normally closed opening. However, the normally closed opening is located at the end of the existing damping valve, resulting in a long flow path, poor venting effect, and easy accumulation of gaseous impurities, which affects product performance.

[0059] In response to this, in one possible implementation, a cleaning channel 301 is provided between the pole cap 31 and the valve body 10, and correspondingly, a cleaning hole 103 is provided on the valve body 10, which connects the outside world with the cleaning channel 301.

[0060] Based on the above design, the impurity removal channel 301 and the impurity removal hole 103 cooperate with each other to discharge gas impurities. Since they are close to the electrode cover 31, the flow path of the gas in the valve cavity 101 is shorter and it is easier to be discharged, effectively avoiding the phenomenon of gas accumulation, thus making the performance of the electronically controlled damping valve better.

[0061] In one possible implementation, the drive element 33 includes a sealing frame 302, a drive 303, a moving core 304, a pivot 305, an intermediate valve 306, and a plug 307;

[0062] One end of the sealing frame 302 is connected to the pole cover 31, the other end of the pole cover 31 is connected to the valve body 10, and the other end of the sealing frame 302 is connected to the inner sleeve 308. Correspondingly, the sealing frame 302 is provided with an installation hole that communicates with the inner sleeve 308.

[0063] The driver 303 is mounted on the sealing frame 302, and the drive end of the driver 303 is connected to the moving core 304; the moving core 304 is slidably mounted on the mounting hole and extends into the inner sleeve 308, and the inner circumference of the moving core 304 is provided with a working hole;

[0064] Pivot 305, intermediate valve 306 and plug 307 are connected to form a drive rod that passes through the working hole. One end of the drive rod is connected to the transmission rod 32 through pivot 305, and the other end of the drive rod is provided with plug 307.

[0065] Based on the above design, the sealing frame 302 and the inner sleeve 308 cooperate with each other to form an installation space. The installation space is divided into a part located outside the sealing frame 302, which is used to install the driver 303, and a part located inside the sealing frame 302, which is used to install the other components of the driver 33.

[0066] The moving core 304 is connected to the output end of the driver 303, and the two can slide back and forth under the drive of the driver 303, so as to drive the drive rod to slide back and forth. At the same time, the drive rod is connected to the transmission rod 32, and the driving force is transmitted to the transmission rod 32 to realize the reciprocating sliding of the transmission rod 32.

[0067] For drive rods, such as Figure 1 As shown, the upper part of the pivot 305 is fitted with a second elastic component 309 for resetting, and the lower part of the pivot 305 is fitted with a fourth elastic component 311 for resetting; the intermediate valve 306 is used to control whether the two ends of the working hole are connected, and the intermediate valve 306 is connected to the plug 307 through the third elastic component 310.

[0068] The two ends of the second elastic member 309 abut against the bushing and the moving core 304 on the pole cover 31, respectively; the two ends of the fourth elastic member abut against the moving core 304 and the bushing, respectively; correspondingly, the moving core 304 is provided with additional holes for accommodating the second elastic member 309 and the fourth elastic member 311.

[0069] Based on the above design, the automatic reset of the moving core 304 is achieved through the cooperation of the second elastic component 309, the third elastic component 310, and the fourth elastic component 311, which helps to reduce power consumption. It is easy to understand that any suitable existing elastic component can be selected from the second elastic component 309, the third elastic component 310, and the fourth elastic component 311.

[0070] For the drive rod, when the moving core 304 reciprocates, the intermediate valve 306 opens in a timely manner, so as to... Figure 1 For example, when the moving core 304 moves downward, the intermediate valve 306 opens; when the moving core 304 moves upward, the intermediate valve 306 closes. Alternatively, when the moving core 304 moves downward, the intermediate valve 306 opens and conducts unidirectionally; when the moving core 304 moves upward, the intermediate valve 306 opens and conducts unidirectionally, and the conduction directions of the two unidirectional flows are opposite to each other. When the moving core 304 resets, the intermediate valve 306 closes. Based on this, during the sliding process of the moving core 304, the medium in the driving component 33 is conveyed. If the medium is gas, it can be discharged through the impurity removal channel 301 and the impurity removal hole 103.

[0071] In one possible implementation, the valve body 10 is fitted with an additional rod 40 for connecting other components. The additional rod 40 has a cavity for fitting the valve body 10 and the drive assembly and an additional channel for communicating with the outside world. The additional channel communicates with the impurity removal hole 103 on the valve body 10.

[0072] The drive assembly includes a sealing frame 302, which is connected to an additional rod 40 via a yoke 401; correspondingly, a gap is provided between the additional rod 40 and the yoke 401 to accommodate the drive assembly.

[0073] Based on the above design, the drive component 33 is located outside the valve body 10, and is covered and isolated from the outside environment by the additional rod 40 to protect the drive component 33 and further reduce the intrusion of gas impurities, thus helping to maintain the performance of the electrically controlled damping valve. Furthermore, the additional rod 40 can also be connected to other components, enabling the electrically controlled damping valve to be used in different application scenarios and improving its practicality.

[0074] Preferably, the sealing frame 302 is provided with a sealing mechanism, and correspondingly, the sealing frame 302 is connected to the additional rod 40 through the sealing mechanism. Based on this, the sealing mechanism improves the overall sealing performance, prevents media leakage, and extends service life. It is readily understood that any suitable existing sealing structure can be selected as the sealing mechanism.

[0075] This embodiment introduces a vibration damper based on the aforementioned electrically controlled damping valve. The vibration damper includes the electrically controlled damping valve. Based on the above design, the vibration damper can also include other suitable functional modules, resulting in richer functionality to meet different working requirements and improved practicality. Furthermore, it is easily understood that these functional modules can be selected from any suitable existing equipment, offering a wide range of choices.

[0076] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An electrically controlled damping valve, characterized in that, Includes valve body (10), plug (22) and drive assembly; The valve body (10) is provided with a valve cavity (101) and a release opening (102). The valve cavity (101) is connected to the outside through the release opening (102). The plug (22) is fixedly installed on the valve body (10) and used to seal the valve cavity (101). The drive assembly is slidably installed in the valve cavity (101). The plug (22) is provided with a normally open valve (21) for connecting and controlling the flow area of ​​the release opening (102). Accordingly, the reciprocating motion of the drive assembly acts on the opening of the normally open valve (21) to control the flow area of ​​the release opening (102).

2. The electrically controlled damping valve according to claim 1, characterized in that, One end of the valve chamber (101) is open and connected to the outside. Correspondingly, the plug (22) is used to seal the open end of the valve chamber (101). The plug (22) is provided with a support seat (23) and a valve block (24). The support seat (23) is provided on the plug (22) and extends into the valve cavity (101). The valve block (24) is slidably provided in the valve cavity (101). The valve block (24) is connected to the support seat (23) through the first elastic member (25). The end of the valve block (24) abuts against the normally open valve (21). Accordingly, when the drive assembly reciprocates, the valve block (24) and the normally open valve (21) reciprocate through the first elastic member (25) to control the opening area of ​​the normally open valve (21).

3. The electrically controlled damping valve according to claim 1, characterized in that, The drive assembly includes a pole cap (31), a transmission rod (32), and a drive element (33). The pole cap (31) is fixed on the valve body (10) and has an oil passage. The transmission rod (32) slides and passes through the pole cap (31). Correspondingly, both ends of the valve body (10) are open, with a plug (22) at one end and a pole cap (31) at the other end. Of the two ends of the transmission rod (32), one end extends toward the valve block (24) and the other end extends toward the drive member (33); the drive member (33) is used to drive the transmission rod (32) to reciprocate in the valve chamber (101).

4. The electrically controlled damping valve according to claim 3, characterized in that, The transmission rod (32) includes a rod body (321) and an end cap (322); one end of the rod body (321) is connected to the end cap (322), and the other end extends toward the drive member (33); the end cap (322) is provided with an elastic element for buffering.

5. The electrically controlled damping valve according to claim 3, characterized in that, A cleaning channel (301) is provided between the pole cap (31) and the valve body (10). Correspondingly, a cleaning hole (103) is provided on the valve body (10), which connects the outside world with the cleaning channel (301).

6. The electrically controlled damping valve according to claim 5, characterized in that, The drive unit (33) includes a seal frame (302), a drive unit (303), a moving core (304), a pivot (305), an intermediate valve (306), and a plug (307); One end of the sealing frame (302) is connected to the pole cap (31), the other end of the pole cap (31) is connected to the valve body (10), and the other end of the sealing frame (302) is connected to the inner sleeve (308). Correspondingly, the sealing frame (302) is provided with an installation hole that communicates with the inner sleeve (308). The driver (303) is mounted on the sealing frame (302), and the drive end of the driver (303) is connected to the moving core (304); the moving core (304) is slidably mounted on the mounting hole and extends into the inner sleeve (308), and the inner circumference of the moving core (304) is provided with a working hole; A pivot (305), an intermediate valve (306), and a plug (307) are connected to form a drive rod that passes through the working hole. One end of the drive rod is connected to a transmission rod (32) via the pivot (305), and the other end of the drive rod is provided with a plug (307).

7. The electrically controlled damping valve according to claim 6, characterized in that, The upper part of the pivot (305) is fitted with a second elastic component (309) for resetting, and the lower part of the pivot (305) is fitted with a fourth elastic component (311) for resetting; the intermediate valve (306) is used to control whether the two ends of the working hole are connected, and the intermediate valve (306) is connected to the plug (307) through the third elastic component (310). The two ends of the second elastic component (309) abut against the bushing and the moving core (304) on the pole cover (31), respectively; the two ends of the fourth elastic component abut against the moving core (304) and the bushing, respectively; correspondingly, the moving core (304) is provided with additional holes for accommodating the second elastic component (309) and the fourth elastic component (311).

8. The electrically controlled damping valve according to any one of claims 1-7, characterized in that, The valve body (10) is fitted with an additional rod (40) for connecting other components. The additional rod (40) has a cavity for fitting the valve body (10) and the drive assembly and an additional channel for communicating with the outside. The additional channel communicates with the impurity removal hole (103) on the valve body (10). The drive assembly includes a sealing frame (302) which is connected to an additional rod (40) via a yoke (401); correspondingly, a gap adapted to the drive assembly is provided between the additional rod (40) and the yoke (401).

9. The electrically controlled damping valve according to claim 8, characterized in that, The sealing frame (302) is provided with a sealing mechanism, and correspondingly, the sealing frame (302) is connected to the additional rod (40) through the sealing mechanism.

10. A vibration damper, characterized in that, The electrically controlled damping valve includes any one of claims 1-9.

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