Suspension device and engine

Abstract

The utility model belongs to the technical field of engines, and particularly relates to a suspension device and an engine. The suspension device comprises a main chamber, an auxiliary chamber, a communicating vessel and an adjusting system, the communicating vessel comprises a communicating plate, the communicating plate is located between the main cavity and the auxiliary cavity, an inertia channel is formed in the communicating plate, and the main cavity communicates with the auxiliary cavity through the inertia channel; the adjusting system comprises a pump body, a first pipeline and a first adjusting valve, the pump body is communicated with the main cavity through the first pipeline, the first adjusting valve is arranged on the first pipeline, the pump body is used for conveying a working medium, and the first adjusting valve is used for adjusting the flow of the working medium of the first pipeline. The suspension device can give consideration to excitation frequencies of the engine under various working conditions, and has good damping and noise reduction effects.

Description

Technical Field

[0001] This utility model belongs to the field of engine technology, specifically relating to a suspension device and an engine. Background Technology

[0002] Engine mounts, also known as engine feet, function primarily to secure the engine to the vehicle body via elastic connections, thereby reducing vibration and noise generated during engine operation. Once the structural materials of traditional rubber mounts are determined, the spring constant and stiffness are also fixed, limiting their applicability. However, engines operate at a wide speed range, corresponding to a broad range of excitation frequencies, and existing mount structures cannot accommodate all of these frequencies.

[0003] For example, in hybrid light trucks, the engine needs to be started and stopped frequently due to the frequent switching of drive modes, such as between pure electric mode and hybrid mode. Since the torsional vibration and excitation frequency during engine start-stop are not within the commonly used range, if traditional rubber mounts are used, the noise, vibration, and acoustic roughness during engine start-stop are significantly different compared to pure electric mode, resulting in a poor driving experience for users.

[0004] Therefore, there is an urgent need to provide a suspension device and an engine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to at least solve the problem of the inability to adjust the damping and stiffness of the suspension device. This purpose is achieved through the following technical solution:

[0006] The first aspect of this utility model provides a suspension device, comprising:

[0007] main chamber;

[0008] Secondary chamber;

[0009] A communicating vessel includes a communicating plate located between the main chamber and the secondary chamber, the communicating plate having an inertial channel through which the main chamber and the secondary chamber are connected;

[0010] The regulating system includes a pump body, a first pipeline, and a first regulating valve. The pump body is connected to the main chamber through the first pipeline, and the first regulating valve is installed on the first pipeline. The pump body is used to transport the working medium, and the first regulating valve is used to regulate the flow rate of the working medium in the first pipeline.

[0011] In this technical solution, the suspension device operates by causing the working medium to flow back and forth between the main and auxiliary chambers due to inertia. Because of the mutual viscous resistance between the inertial channel and the working medium, the liquid absorbs vibrations as it passes through the inertial channel. When the working medium in the main chamber increases, the suspension device exhibits high stiffness and high damping, enabling the absorption of large-amplitude excitations; conversely, when the working medium in the main chamber decreases, the suspension device exhibits low stiffness and low damping, enabling the absorption of small-amplitude excitations. Therefore, when the engine is running normally, the first regulating valve is closed, and the working medium generates resistance as it flows through the inertial channel, achieving a damping (attenuation) effect and quickly converging the vibration. Before switching drive modes (e.g., engine start-stop), the first regulating valve opens to the appropriate degree according to preset parameters, and the pump inputs or extracts the working medium into or out of the chamber according to the set working medium dosage, adjusting the stiffness and damping of the entire suspension device. Thus, this suspension device can accommodate the excitation frequencies under various engine operating conditions, achieving excellent vibration reduction and noise reduction effects.

[0012] In addition, the suspension device of this utility model may also have the following additional technical features:

[0013] In some embodiments of this utility model, the connecting plate has a first channel, one end of the first channel is connected to the main chamber, and the other end of the first channel is connected to the first pipeline.

[0014] In some embodiments of this utility model, the regulating system further includes a second pipeline, the pump body is connected to the secondary chamber through the second pipeline, and a second regulating valve is provided on the second pipeline for regulating the flow rate of the working medium in the second pipeline.

[0015] In some embodiments of this utility model, the connecting plate has a second channel, one end of the second channel is connected to the secondary chamber, and the other end of the second channel is connected to the second pipeline.

[0016] In some embodiments of this utility model, the regulating system further includes a storage tank, which is connected to the pump body and is used to store the working medium.

[0017] In some embodiments of this utility model, the main chamber is provided with a detection unit, which is used to detect the pressure or liquid level of the main chamber, and the first regulating valve adjusts its opening degree according to the detection result of the detection unit.

[0018] In some embodiments of this utility model, the suspension device further includes a rubber main spring and a connecting plate. The connecting plate is located above the connecting plate and spaced apart from the connecting plate. The bottom of the connecting plate and the top of the connecting plate are connected by the rubber main spring to form the main chamber. The side of the connecting plate away from the rubber main spring is used to connect to the engine body.

[0019] In some embodiments of this utility model, the suspension device further includes an elastic diaphragm, the outer periphery of which is connected to the bottom of the connecting plate to form the secondary chamber.

[0020] In some embodiments of this utility model, the communicating vessel further includes a base, which is connected to the bottom of the communicating plate to form a cavity, the elastic diaphragm is located inside the cavity, and the base is used to connect with the vehicle body.

[0021] In a second aspect, this invention provides an engine comprising an engine body and a suspension device as described in the above embodiments, wherein the engine body is connected to a vehicle body via the suspension device. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 A schematic diagram of the suspension device according to an embodiment of the present invention is shown.

[0024] The labels in the attached diagram are as follows:

[0025] 100. Main chamber; 110. Rubber main spring; 120. Connecting plate; 130. Detection unit;

[0026] 200. Secondary chamber; 210. Elastic diaphragm;

[0027] 300. Communicating vessel; 310. Communicating plate; 311. Inertial channel; 312. First channel; 313. Second channel; 320. Base; 321. Cavity;

[0028] 400, regulating system; 410, pump body; 420, first pipeline; 421, first regulating valve; 430, second pipeline; 431, second regulating valve; 440, storage tank. Detailed Implementation

[0029] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0030] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0031] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0032] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0033] Figure 1A schematic diagram of the suspension device according to an embodiment of the present invention is shown. Figure 1 As shown, this utility model proposes a suspension device, including a main chamber 100, a secondary chamber 200, a communicating vessel 300, and an adjustment system 400; the communicating vessel 300 includes a communicating plate 310, which is located between the main chamber 100 and the secondary chamber 200, and the communicating plate 310 has an inertial channel 311, through which the main chamber 100 and the secondary chamber 200 are connected; the adjustment system 400 includes a pump body 410, a first pipeline 420, and a first regulating valve 421, the pump body 410 is connected to the main chamber 100 through the first pipeline 420, the first regulating valve 421 is disposed on the first pipeline 420, the pump body 410 is used to transport the working medium, and the first regulating valve 421 is used to adjust the flow rate of the working medium in the first pipeline 420.

[0034] In this technical solution, during operation, vibration causes the working medium to flow back and forth between the main chamber 100 and the auxiliary chamber 200 via inertia. Due to the mutual viscous resistance between the inertial channel 311 and the working medium, the liquid absorbs vibration through the resistance of the inertial channel 311 as it passes through it. When the amount of working medium in the main chamber 100 increases, the suspension device exhibits characteristics of high stiffness and high damping, enabling the absorption of large-amplitude excitations; when the amount of working medium in the main chamber 100 decreases, the suspension device exhibits characteristics of low stiffness and low damping, enabling the absorption of small-amplitude excitations. Therefore, when the engine is running normally, the first regulating valve 421 is closed, and the working medium generates resistance when flowing through the inertial channel 311, which can achieve a damping (attenuation) effect and quickly reduce vibration. Before switching the drive mode (e.g., engine start-stop), the first regulating valve 421 opens to the corresponding degree according to preset parameters, and the pump body 410 inputs or extracts the working medium into or out of the chamber according to the set working medium usage, thus adjusting the stiffness and damping of the entire suspension device. As a result, this suspension device can take into account the excitation frequency under various engine operating conditions, achieving a good vibration reduction and noise reduction effect.

[0035] Optionally, the working medium can be a liquid, such as hydraulic oil, or a gas, such as nitrogen, whichever is required. Optionally, the first regulating valve 421 can be a solenoid valve.

[0036] Preferably, the inertial channel 311 is a polygonal shape, which increases its length and generates greater resistance to the working medium during flow. Optionally, the corners of the inertial channel 311 are rounded to avoid stress concentration and reduce the risk of wear. Of course, in other embodiments, the inertial channel 311 can also be a straight line, depending on the specific requirements. The number of inertial channels 311 can be one or more.

[0037] Furthermore, the connecting plate 310 has a first channel 312, one end of which is connected to the main chamber 100, and the other end of which is connected to the first pipeline 420.

[0038] Understandably, the connecting plate 310 is made of a rigid material. By opening a first channel 312 on the connecting plate 310 for connecting the first pipeline 420, the structural strength of the suspension device can be avoided from being significantly affected. Optionally, the first channel 312 includes a vertical section and a horizontal section that are interconnected. The end of the vertical section away from the horizontal section is connected to the main chamber 100, and the end of the horizontal section away from the vertical section is connected to the first channel 312.

[0039] Furthermore, the regulating system 400 also includes a second pipeline 430, through which the pump body 410 is connected to the auxiliary chamber 200. A second regulating valve 431 is provided on the second pipeline 430, which is used to regulate the flow rate of the working medium in the second pipeline 430.

[0040] By adding a second pipeline 430, the input or output of the working medium can be increased, enabling rapid adjustment of the working medium usage and improving the overall response time of the device. By installing a second regulating valve 431 on the second pipeline 430, the flow rate of the working medium inside the second pipeline 430 can be adjusted according to actual conditions, allowing for a wider adjustment range of the total input or output of the working medium to better adapt to different operating conditions.

[0041] Optionally, the end of the second pipeline 430 that connects to the pump body 410 can be connected between the first channel 312 and the first regulating valve 421, or it can be connected between the first regulating valve 421 and the pump body 410. In this embodiment, the end of the second pipeline 430 that connects to the pump body 410 is located between the first channel 312 and the first regulating valve 421. By adjusting the first regulating valve 421, the flow rate of the first pipeline 420 and the second pipeline 430 can be adjusted. By adjusting the second regulating valve 431, the flow rate of the second pipeline 430 can be further adjusted. Through the adjustment of the two regulating valves, precise control of the working medium flow rate can be achieved, thereby improving the overall accuracy of the device. Optionally, the second regulating valve 431 can be a solenoid valve.

[0042] Furthermore, the connecting plate 310 has a second channel 313, one end of which is connected to the secondary chamber 200, and the other end of which is connected to the second pipeline 430.

[0043] Understandably, placing the second channel 313 on the rigid connecting plate 310 can avoid significantly affecting the structural strength of the suspension device. Optionally, the second channel 313 includes a vertical section and a horizontal section that are interconnected, wherein the end of the vertical section away from the horizontal section is connected to the secondary chamber 200, and the end of the horizontal section away from the vertical section is connected to the second channel 313.

[0044] Furthermore, the regulating system 400 also includes a storage tank 440, which is connected to the pump body 410 and is used to store the working medium.

[0045] When it is necessary to replenish the working medium to the chamber, the pump body 410 delivers the working medium from the storage tank to the chamber. When it is necessary to extract the working medium from the chamber, the pump body 410 extracts the working medium from the chamber into the storage tank for storage. Understandably, the storage tank 440 is selected according to the type of working medium.

[0046] Furthermore, the main chamber 100 is provided with a detection unit 130, which is used to detect the pressure or liquid level of the main chamber 100. The first regulating valve 421 adjusts its opening degree according to the detection result of the detection unit 130.

[0047] When the working medium is gas, the detection unit 130 can be a pressure sensor; when the working medium is liquid, the detection unit 130 can be a level sensor. By setting the detection unit 130, the valve opening can be precisely adjusted according to the working medium in the chamber and the actual required amount of working medium. Optionally, the detection unit 130 and the regulating valve are respectively connected to the control unit via signal transmission. The detection unit 130 transmits the detection result to the control unit, and the control unit controls the valve opening according to a preset program. The control method of the control unit is a mature existing technology in the field and will not be described in detail here.

[0048] Furthermore, the suspension device also includes a rubber main spring 110 and a connecting plate 120. The connecting plate 120 is located above the connecting plate 310 and is spaced apart from the connecting plate 310. The bottom of the connecting plate 120 and the top of the connecting plate 310 are connected by the rubber main spring 110 to form the main chamber 100. The side of the connecting plate 120 away from the rubber main spring 110 is used to connect to the engine body.

[0049] Optionally, the rubber main spring 110 has a ring structure. When the engine body vibrates, it drives the rubber main spring 110 to move up and down, causing the main chamber 100 to be stretched or compressed, resulting in changes in the volume of the main chamber 100, which in turn causes the working medium to flow back and forth between the main chamber 100 and the auxiliary chamber 200 through the inertial channel 311. The connecting plate 120 can support the engine body and effectively transmit the vibration of the engine body to the rubber main spring 110. The connection between the connecting plate 120 and the engine body can be made of high-strength bolts to ensure a robust structure. Optionally, the detection device is connected to the top of the connecting plate 120.

[0050] Furthermore, the suspension device also includes an elastic diaphragm 210, the outer periphery of which is connected to the bottom of the connecting plate 310 to form a secondary chamber 200.

[0051] The elastic diaphragm 210 provides a certain buffering effect, effectively absorbing pressure fluctuations of the working medium within the secondary chamber 200, reducing impact on the suspension device, and improving the overall stability of the device. Furthermore, the elastic diaphragm 210 possesses a degree of elasticity, allowing the volume of the secondary chamber 200 to vary according to the flow of the working medium. The material of the elastic diaphragm 210 can be selected based on the actual working environment to ensure its durability and reliability. The thickness and shape of the elastic diaphragm 210 are optimized to adapt to pressure changes under different operating conditions. The elastic diaphragm 210 is connected to the connecting plate 310 through a vulcanization process to ensure sealing and stability, preventing leakage of the working medium.

[0052] Furthermore, the communicating vessel 300 also includes a base 320, which is connected to the bottom of the communicating plate 310 to form a cavity 321. The elastic diaphragm 210 is located inside the cavity 321, and the base 320 is used for connection with the vehicle body. The base 320 is made of high-strength material to ensure a firm and reliable connection with the vehicle body. Optionally, the base 320 is provided with multiple through holes (not shown in the figure). The cavity 321 outside the elastic diaphragm 210 is connected to the external environment through the through holes to achieve pressure balance, thereby facilitating the change of shape of the elastic diaphragm 210.

[0053] Furthermore, this technical solution also provides an engine, including an engine body and a mounting device as described in the above embodiments, wherein the engine body is connected to the vehicle body through the mounting device.

[0054] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A suspension device, characterized in that, include: mainchamber(100); Secondary chamber (200); A communicating vessel (300) includes a communicating plate (310) located between the main chamber (100) and the secondary chamber (200). The communicating plate (310) has an inertial channel (311) through which the main chamber (100) and the secondary chamber (200) are connected. The regulating system (400) includes a pump body (410), a first pipeline (420), and a first regulating valve (421). The pump body (410) is connected to the main chamber (100) through the first pipeline (420). The first regulating valve (421) is installed on the first pipeline (420). The pump body (410) is used to transport the working medium, and the first regulating valve (421) is used to regulate the flow rate of the working medium in the first pipeline (420).

2. The suspension device according to claim 1, characterized in that, The connecting plate (310) has a first channel (312), one end of the first channel (312) is connected to the main chamber (100), and the other end of the first channel (312) is connected to the first pipeline (420).

3. The suspension device according to claim 1, characterized in that, The regulating system (400) further includes a second pipeline (430), the pump body (410) is connected to the auxiliary chamber (200) through the second pipeline (430), and a second regulating valve (431) is provided on the second pipeline (430) for regulating the flow rate of the working medium in the second pipeline (430).

4. The suspension device according to claim 3, characterized in that, The connecting plate (310) has a second channel (313), one end of the second channel (313) is connected to the sub-chamber (200), and the other end of the second channel (313) is connected to the second pipeline (430).

5. The suspension device according to any one of claims 1-4, characterized in that, The regulating system (400) also includes a storage tank (440) connected to the pump body (410) for storing the working medium.

6. The suspension device according to any one of claims 1-4, characterized in that, The main chamber (100) is provided with a detection unit (130), which is used to detect the pressure or liquid level of the main chamber (100). The first regulating valve (421) adjusts its opening degree according to the detection result of the detection unit (130).

7. The suspension device according to any one of claims 1-4, characterized in that, The suspension device also includes a rubber main spring (110) and a connecting plate (120). The connecting plate (120) is located above the connecting plate (310) and spaced apart from the connecting plate (310). The bottom of the connecting plate (120) and the top of the connecting plate (310) are connected by the rubber main spring (110) to form the main chamber (100). The side of the connecting plate (120) facing away from the rubber main spring (110) is used to connect to the engine body.

8. The suspension device according to any one of claims 1-4, characterized in that, The suspension device further includes an elastic diaphragm (210), the outer periphery of which is connected to the bottom of the connecting plate (310) to form the sub-chamber (200).

9. The suspension device according to claim 8, characterized in that, The communicating vessel (300) also includes a base (320), which is connected to the bottom of the communicating plate (310) to form a cavity (321). The elastic diaphragm (210) is located inside the cavity (321), and the base (320) is used to connect with the vehicle body.

10. An engine, characterized in that, It includes an engine body and a suspension device according to any one of claims 1-9, wherein the engine body is connected to the vehicle body via the suspension device.

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