Shock absorber valve shell, active shock absorber and shock absorber oil way system
By designing the valve body, switching valve, and connector of the damper valve housing, a stable connection between the oil pump unit, the active damper, and the external oil injection unit is achieved, solving the oil leakage problem and improving the safety and adjustment performance of the active damper.
Patent Information
- Application Number
- CN202422647044.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-31
Smart Images
Figure CN223178047U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorbers, and specifically to a shock absorber valve housing, an active shock absorber and a shock absorber oil circuit system. Background Art
[0002] With the development of automotive suspension products, active shock absorbers have emerged. The active shock absorber adjusts the amount of oil in the working chamber through an oil pump to control the movement of the piston rod and achieve the purpose of adjusting the vehicle body height.
[0003] The active shock absorber needs to be connected to an oil pump unit; when operations such as refueling and oil change are required in the oil pump unit, it also needs to be connected to an external oil injection unit. How to connect the active shock absorber, the oil pump unit and the external oil injection unit to realize the working drive and oil circuit management of the active shock absorber and avoid problems such as oil leakage is an issue that needs to be solved in this field.
[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present utility model, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model
[0005] The present utility model provides a shock absorber valve housing, an active shock absorber and a shock absorber oil circuit system, which can realize the connection between the oil pump unit, the active shock absorber and the external oil injection unit, realize the working drive and oil circuit management of the active shock absorber, and improve the safety and active adjustment performance of the active shock absorber.
[0006] According to one aspect of the present utility model, there is provided a shock absorber valve housing for an active shock absorber, comprising: a valve housing body having an oil passage for communicating with the internal oil circuit of the shock absorber; a switching valve provided in the oil passage, the switching valve being capable of opening and closing the oil passage; a connector connected to the valve housing body, the connector having an oil pump interface and an oil injection interface with an interface valve, the oil pump interface communicating with the oil passage, the oil injection interface communicating with the oil pump interface, and the interface valve being capable of opening and closing the oil injection interface.
[0007] In some embodiments, the switching valve is a bolt valve; when the bolt valve is tightened, the oil passage is closed; when the bolt valve is loosened, the oil passage is opened.
[0008] In some embodiments, the connector has a connection end that extends into the valve housing body and is sealed by a sealing ring.
[0009] In some embodiments, the connector has an assembly end, and the assembly end and the valve housing body are assembled through fasteners.
[0010] In some embodiments, the interface valve includes an elastic member and a valve member; under the action of the elastic member, the valve member presses against to close the oil injection interface; when the valve member pushes away the elastic member, the oil injection interface opens.
[0011] In some embodiments, the oil pump interface is connected to an oil pipe, and the oil pipe is provided with an opening at a position corresponding to the oil filling interface.
[0012] In some embodiments, the oil circuit includes two channels, which are respectively used to communicate with the inlet and outlet of the internal oil circuit of the shock absorber; the switching valve and the connecting head each include two, the oil pump interfaces of the two connecting heads are respectively used to connect to the oil pump unit, and the oil filling interfaces of the two connecting heads are respectively used to connect to the external oil filling unit.
[0013] According to another aspect of the present invention, an active shock absorber is provided, comprising a shock absorber body, and further comprising: a shock absorber valve housing as described in any of the above embodiments, the shock absorber valve housing being connected to the shock absorber body by assembly or integral molding; and an oil pump unit being connected to the oil pump interface of the shock absorber valve housing.
[0014] According to another aspect of the present invention, a shock absorber oil circuit system is provided, comprising: an active shock absorber as described in the above embodiment; an external oil injection unit, connected to the oil injection interface of the shock absorber valve housing; wherein the external oil injection unit comprises a vacuum pump and an oil storage tank, the vacuum pump and the oil storage tank are connected to the oil injection interface via a connector, and switches are respectively provided in the pipelines connecting the connector to the vacuum pump, the oil storage tank and the oil injection interface.
[0015] In some embodiments, the active shock absorber has the following modes: working mode: the oil filling interface is closed, the oil passage of the shock absorber valve housing is connected, and the oil pump unit is connected to the internal oil circuit of the shock absorber through the oil passage; vacuum mode: the oil passage is cut off, the oil filling interface is opened, and the vacuum pump is connected to the oil pump unit via the connector, the oil filling interface and the oil pump interface in sequence; oil filling mode: the oil passage is cut off, the oil filling interface is opened, and the oil storage tank is connected to the oil pump unit via the connector, the oil filling interface and the oil pump interface in sequence.
[0016] Compared with the prior art, the beneficial effects of the present invention include at least:
[0017] The oil pump interface is for connecting the oil pump unit. The oil pump interface is connected to the oil passage through the internal passage of the connector, realizing the connection between the oil pump unit and the internal oil passage of the shock absorber. Thus, the oil pump unit can drive the piston rod of the active shock absorber to move, enabling the active shock absorber to work properly. The oil filling interface is for connecting an external oil filling unit. The oil filling interface is connected to the oil pump interface, realizing the connection between the external oil filling unit and the oil pump unit. Thus, oil management operations such as oil filling, oil change, and air exhaust can be performed on the oil pump unit. The oil filling interface is equipped with an interface valve, which can open and close the oil filling interface. So as to conduct the oil filling interface when oil management is needed, and close the oil filling interface when the active shock absorber is working, to prevent the internal oil of the active shock absorber from leaking. In addition, the switching valve only conducts the oil passage when the active shock absorber is working, and can cut off the oil passage when performing oil management operations on the oil pump unit, so as not to affect the internal oil passage of the shock absorber.
[0018] In the present utility model, the oil pump interface and the oil filling interface are arranged on the connector. The connector is connected to the valve housing body and is integrally connected to the shock absorber body, realizing a compact and stable shock absorber valve housing structure. With the help of the shock absorber valve housing, the connection between the oil pump unit and the active shock absorber and the external oil filling unit can be realized, the work drive and oil management of the active shock absorber can be achieved, and the safety and active adjustment performance of the active shock absorber can be improved.
[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments in accordance with the present utility model, and are used together with the specification to explain the principles of the present utility model. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0021] Figure 1 Showing a schematic structural diagram of the shock absorber valve housing connected to the shock absorber body in an embodiment of the present utility model;
[0022] Figure 2 Showing a sectional structural diagram of the shock absorber valve housing in an embodiment of the present utility model;
[0023] Figure 3 Showing a three-dimensional structural diagram of the connector of the shock absorber valve housing in an embodiment of the present utility model;
[0024] Figure 4 Showing a sectional structural diagram of the oil filling interface of the connector in an embodiment of the present utility model;
[0025] Figure 5Schematic diagram showing the oil circuit system where the active shock absorber is located in the embodiment of the present utility model. Detailed implementation manners
[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that this utility model will be more complete and comprehensive, and the concept of the example embodiments will be fully conveyed to those skilled in the art.
[0027] The accompanying drawings are only schematic illustrations of the present utility model and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar structures, and thus repeated descriptions thereof will be omitted. The terms "first", "second", and similar terms used in the specific description do not denote any order, quantity, or importance, but are only used to distinguish different components. In addition, when it is said that a device is "connected" to another device, this includes not only the case of direct connection, but also the case of indirect connection through other elements.
[0028] It should be noted that, without conflict, the features in the embodiments of the present utility model and those in different embodiments can be combined with each other.
[0029] Figure 1 Schematically shows the structure where the shock absorber valve housing is connected to the shock absorber body Figure 2 Schematically shows the sectional structure of the shock absorber valve housing Figure 3 Schematically shows the three-dimensional structure of the connection head of the shock absorber valve housing Figure 4 Schematically shows the sectional structure of the oil injection interface of the connection head; in combination with Figures 1 to 4 As shown, the shock absorber valve housing for an active shock absorber provided in the embodiment of the present utility model includes:
[0030] A valve housing body 10 having an oil circuit passage 11 for communicating with the internal oil circuit of the shock absorber;
[0031] A switching valve 20 is provided in the oil circuit passage 11, and the switching valve 20 can conduct and cut off the oil circuit passage 11;
[0032] A connection head 30 is connected to the valve housing body 10. The connection head 30 has an oil pump interface 31 and an oil injection interface 32 with an interface valve 33. The oil pump interface 31 communicates with the oil circuit passage 11, the oil injection interface 32 communicates with the oil pump interface 31, and the interface valve 33 can open and close the oil injection interface 32.
[0033] The entire shock absorber valve housing can be connected to the shock absorber body 60 by means of the connecting portion 100 in an assembled manner or by integral molding. The oil pump interface 31 is for connecting the oil pump unit. The oil pump interface 31 communicates with the oil passage 11 through the internal passage of the connector 30, realizing the connection between the oil pump unit and the internal oil passage of the shock absorber. Thus, the oil pump unit can drive the piston rod of the active shock absorber to move, enabling the active shock absorber to work properly. The oil filling interface 32 is for connecting an external oil filling unit. The oil filling interface 32 communicates with the oil pump interface 31, realizing the connection between the external oil filling unit and the oil pump unit. Thus, oil management operations such as oil filling, oil change, and exhaust can be performed on the oil pump unit. The oil filling interface 32 is provided with an interface valve 33. The interface valve 33 can open and close the oil filling interface 32, so as to conduct the oil filling interface 32 when oil passage management is required, and close the oil filling interface 32 when the active shock absorber is working, avoiding the leakage of the oil inside the active shock absorber. In addition, the switching valve 20 only conducts the oil passage 11 when the active shock absorber is working, and can cut off the oil passage 11 when performing oil passage management operations on the oil pump unit, so as not to affect the internal oil passage of the shock absorber.
[0034] In the present utility model, the oil pump interface 31 and the oil filling interface 32 are arranged on the connector 30. The connector 30 is connected to the valve housing body 10 and is integrally connected to the shock absorber body 60, realizing a compact and stable shock absorber valve housing structure. With the help of the shock absorber valve housing, the connection between the oil pump unit and the active shock absorber and the external oil filling unit can be realized, realizing the working drive and oil passage management of the active shock absorber, and improving the safety and active adjustment performance of the active shock absorber.
[0035] In some embodiments, the switching valve 20 is a bolt valve; when the bolt valve is tightened, the oil passage 11 is cut off; when the bolt valve is loosened, the oil passage 11 is conducted.
[0036] Through the bolt valve, the oil passage 11 can be conveniently conducted and cut off, realizing the connection between the internal oil passage of the shock absorber and the oil pump unit, or cutting off the connection between the internal oil passage of the shock absorber and the external pipeline, preventing the oil inside the active shock absorber from flowing out.
[0037] In some embodiments, the connector 30 has a connection end 36. The connection end 36 extends into the valve housing body 10 and is sealed by a sealing ring 37. In this way, the sealed connection between the internal passage of the connector 30 and the oil passage 11 of the valve housing body 10 is realized.
[0038] In some embodiments, the connector 30 has an assembly end 38. The assembly end 38 and the valve housing body 10 are assembled by fasteners such as bolts. In this way, the firm connection between the connector 30 and the valve housing body 10 is ensured.
[0039] In some embodiments, the interface valve 33 includes an elastic member 331 and a valve member 332; under the action of the elastic member 331, the valve member 332 can abut against and close the oil injection interface 32; when the valve member 332 pushes open the elastic member 331, the oil injection interface 32 is opened. Thus, when the interface of the external oil injection unit is connected to the oil injection interface 32, the valve member 332 can be pushed to open the elastic member 331, so that the oil injection interface 32 is opened; when the interface of the external oil injection unit is disconnected from the oil injection interface 32, the oil injection interface 32 is closed. Among them, the elastic member 331 is, for example, a spring, and the valve member 332 is, for example, a valve ball, but not limited thereto.
[0040] In some embodiments, an oil pipe 310 is connected to the oil pump interface 31, and the oil pipe 310 is used to connect to an oil pump unit that drives the active shock absorber to work. An opening is provided at a position on the oil pipe 310 corresponding to the oil injection interface 32 to enable the oil injection interface 32 to communicate with the inside of the oil pipe 310.
[0041] In the above embodiments, there are two oil passage channels 11, which are respectively used to communicate with the inlet and outlet of the oil passage inside the shock absorber; there are two switch valves 20 and two connectors 30 respectively, which are respectively matched with the two oil passage channels 11. The oil pump interfaces 31 of the two connectors 30 are respectively used to connect to the oil pump unit, and the oil injection interfaces 32 of the two connectors 30 are respectively used to connect to the external oil injection unit.
[0042] Among them, the two oil pump interfaces 31 are connected to the oil pump unit, and an operating circuit of the shock absorber can be formed as "oil pump unit → the first oil pump interface 31 → the first oil passage channel 11 of the valve housing body 10 → the inlet of the oil passage inside the shock absorber → the outlet of the oil passage inside the shock absorber → the second oil passage channel 11 of the valve housing body 10 → the second oil pump interface 31 → oil pump unit".
[0043] The external oil injection unit may include a vacuum pump and an oil storage tank. The two oil injection interfaces 32 are connected to the external oil injection unit, and a vacuum pumping / venting circuit can be formed as "vacuum pump → the first oil injection interface 32 → the first oil pump interface 31 → oil pump unit → the second oil pump interface 31 → the second oil injection interface 32 → vacuum pump", and an oil injection / oil change circuit can be formed as "oil storage tank → the first oil injection interface 32 → the first oil pump interface 31 → oil pump unit → the second oil pump interface 31 → the second oil injection interface 32 → oil storage tank". In the above three circuits, the "first oil injection interface 32" can be the same oil injection interface 32 or different oil injection interfaces 32. That is, according to needs, the two oil passage channels 11, the two oil pump interfaces 31, and the two oil injection interfaces 32 can be respectively used as inlets and outlets.
[0044] The embodiment of the present utility model also provides an active shock absorber. Figure 5 Schematically shows the oil circuit system where the active shock absorber is located; refer to Figure 1 and Figure 5, and in combination with Figures 2 to 4 As shown, the active shock absorber includes:
[0045] A shock absorber body 60;
[0046] A shock absorber valve housing, which is connected to the shock absorber body 60 by means of assembly or integral molding;
[0047] [[ID=…]]A pump unit 70, which is connected to the oil pump interface 31 of the shock absorber valve housing.
[0048] When the active shock absorber is in the working mode, the interface valve 33 closes the oil filling interface 32, and the switching valve 20 conducts the oil passage 11, so that the pump unit 70 is connected to the internal oil passage of the shock absorber through the oil passage 11. In the working mode, referring to Figure 5 As shown, a shock absorber working circuit can be formed.
[0049] By connecting the pump unit 70 to the internal oil passage of the shock absorber, the pump unit can drive the piston rod of the active shock absorber to move and adjust the vehicle body height. When the active shock absorber is working, the oil filling interface 32 is closed to prevent the internal oil of the active shock absorber from leaking, improving the safety and active adjustment performance of the active shock absorber.
[0050] The embodiment of the present invention also provides a shock absorber oil circuit system. Referring to Figure 5 , and in combination with Figures 1 to 4 As shown, the shock absorber oil circuit system includes:
[0051] An active shock absorber;
[0052] An external oil filling unit, which is connected to the oil filling interface 32 of the shock absorber valve housing;
[0053] Among them, the external oil filling unit includes a vacuum pump 82 and an oil storage tank 83. The vacuum pump 82 is connected to the oil storage tank 83 through a connector to the oil filling interface 32, and switches are respectively provided in the pipelines connecting the connector to the vacuum pump 82, the oil storage tank 83 and the oil filling interface 32.
[0054] In the vacuum pumping mode, the oil passage 11 is cut off, the oil filling interface 32 is opened, and the vacuum pump 82 is connected to the pump unit 70 through the connector, the oil filling interface 32 and the oil pump interface 31 in sequence. At this time, referring to Figure 5 As shown, a vacuum pumping / exhaust circuit of "vacuum pump 82 → switch S1 → connector → switch S2 → interface valve 33 → pump unit 70 → interface valve 33 → switch S3 → connector → switch S1 → vacuum pump 82" can be formed. [[ID=4…]]
[0055] In the oil filling mode, the oil passage 11 is cut off, the oil filling interface 32 is opened, and the oil storage tank 83 is connected to the pump unit 70 through the connector, the oil filling interface 32 and the oil pump interface 31 in sequence. At this time, referring toFigure 5 As shown, an oil filling / oil changing circuit of "oil storage tank 83 → switch S4 → connector → switch S3 → interface valve 33 → oil pump unit 70 → interface valve 33 → switch S2 → connector → switch S4 → oil storage tank 83" can be formed.
[0056] Through the vacuum pumping / exhaust circuit, the air existing in the pipeline can be discharged before oil filling / oil changing, avoiding air mixing into the oil, reducing the possibility of generating bubbles during the operation of the active shock absorber, improving the stability of the active force adjustment, and enhancing the working performance of the active shock absorber. Inside the active shock absorber, an energy storage device is usually provided and the form of oil-gas separation is adopted. The air is precharged in the energy storage device in advance to generate a pre-pressure. The outside of the energy storage device is filled with oil, which can avoid the mixing of oil and air.
[0057] In this way, by means of the shock absorber valve housing and adopting the vacuum oil filling method, the active shock absorber of the present invention can meet the purpose of oil filling and oil changing for the hydraulic system of the active suspension. The structure of the present invention is simple, the operation is convenient, and it can prevent oil leakage, improving the safety during use.
[0058] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.
Claims
1. A shock absorber valve housing for an active shock absorber, characterized in that, Comprising: A valve housing body having an oil passage channel for communicating with the internal oil passage of the shock absorber; A switching valve disposed in the oil passage channel, the switching valve being capable of conducting and blocking the oil passage channel; A connector connected to the valve housing body, the connector having an oil pump interface and an oil injection interface with an interface valve, the oil pump interface communicating with the oil passage channel, the oil injection interface communicating with the oil pump interface, and the interface valve being capable of opening and closing the oil injection interface.
2. The shock absorber valve housing according to claim 1, characterized in that, The switching valve is a bolt valve; When the bolt valve is tightened, the oil passage channel is blocked; When the bolt valve is loosened, the oil passage channel is conducted.
3. The shock absorber valve housing according to claim 1, wherein, The connector has a connection end that extends into the valve housing body and is sealed by a sealing ring.
4. The shock absorber valve housing according to claim 1, characterized in that, The connector has an assembly end, and the assembly end and the valve housing body are assembled by fasteners.
5. The shock absorber valve housing according to claim 1, characterized in that, The interface valve includes an elastic member and a valve member; Under the action of the elastic member, the valve member abuts to close the oil injection interface; When the valve member pushes open the elastic member, the oil injection interface is opened.
6. The shock absorber valve housing according to claim 1, characterized in that, The oil pump interface is connected with an oil pipe, and an opening is provided at a position corresponding to the oil injection interface of the oil pipe.
7. The shock absorber valve housing according to any one of claims 1-6, characterized in that, There are two oil passage channels, which are respectively used for communicating with the inlet and outlet of the internal oil passage of the shock absorber; There are two switching valves and two connectors respectively. The oil pump interfaces of the two connectors are respectively used for connecting with an oil pump unit, and the oil injection interfaces of the two connectors are respectively used for connecting with an external oil injection unit.
8. An active shock absorber, comprising a shock absorber body, characterized in that, Further comprising: A shock absorber valve housing as described in any one of claims 1-7, the shock absorber valve housing is connected to the shock absorber body by an assembly method or an integral molding method; An oil pump unit connected to the oil pump interface of the shock absorber valve housing.
9. A shock absorber oil circuit system, characterized in that, Comprising: An active shock absorber as described in claim 8; An external oil injection unit connected to the oil injection interface of the shock absorber valve housing; Wherein, the external oil injection unit includes a vacuum pump and an oil storage tank. The vacuum pump and the oil storage tank are connected to the oil injection interface through a connector, and switches are respectively provided in the pipelines connecting the connector with the vacuum pump, the oil storage tank and the oil injection interface.
10. The shock absorber oil circuit system according to claim 9, characterized in that, The active shock absorber has the following modes: Working mode: The oil injection interface is closed, the oil passage channel of the shock absorber valve housing is conducted, and the oil pump unit communicates with the internal oil passage of the shock absorber through the oil passage channel; Vacuum pumping mode: The oil passage channel is blocked, the oil injection interface is opened, and the vacuum pump communicates with the oil pump unit through the connector, the oil injection interface and the oil pump interface in sequence; Oil injection mode: The oil passage channel is blocked, the oil injection interface is opened, and the oil storage tank communicates with the oil pump unit through the connector, the oil injection interface and the oil pump interface in sequence.