Hydraulic suspension assembly and vehicle

Abstract

The utility model provides a hydraulic suspension assembly and a vehicle. The hydraulic suspension assembly comprises a suspension framework, a rubber main spring arranged on the suspension framework and a suspension supporting arm connected with the rubber main spring. A suspension liquid chamber is formed in the rubber main spring, and liquid is contained in the suspension liquid chamber; a liquid drainage hole communicated with the suspension liquid chamber is formed in the bottom of the rubber main spring, the liquid drainage hole is communicated with a liquid guide pipe, and a temperature control on-off component is arranged at the liquid drainage hole; the temperature control on-off component can conduct the liquid drainage hole under the set high-temperature condition so that liquid in the suspension liquid chamber can be drained out of the cabin through the liquid guide pipe. According to the hydraulic suspension assembly, when the engine room is on fire, liquid in the suspension liquid chamber can be discharged out of the engine room through the liquid guide pipe, and therefore the liquid in the hydraulic suspension assembly can be prevented from leaking into the engine room to participate in combustion under the condition that the engine room is on fire.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile suspension, and in particular to a hydraulic suspension assembly. In addition, the utility model also relates to a vehicle. Background Art

[0002] As people's living standards improve, they have higher and higher requirements for the comfort of car rides. The powertrain is installed on the body frame using a suspension system, which is very important for reducing the transmission of powertrain vibration to the body, improving the ride comfort of the car and reducing noise. Therefore, the selection of a suspension assembly with excellent vibration reduction effect plays a vital role in improving the vehicle's NVH (Noise, Vibration, Harshness) performance.

[0003] Hydraulic mounts are widely used in many vehicle models because of their excellent shock absorption performance. However, when a vehicle collides violently or other situations cause a fire in the cabin, the liquid in the hydraulic mount (mostly ethylene glycol, propylene glycol, etc.) will leak into the cabin due to damage to the rubber main spring after the mount is baked at high temperature, and participate in the combustion; these liquids are flammable, which will aggravate the fire and generate toxic gases, which will have an adverse effect on endangering the lives of passengers in the vehicle. Utility Model Content

[0004] In view of this, the utility model aims to provide a hydraulic suspension assembly to prevent the liquid in the hydraulic suspension assembly from leaking into the cabin and participating in the combustion when the cabin is on fire.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A hydraulic suspension assembly comprises a suspension frame, a rubber main spring arranged on the suspension frame, and a suspension bracket connected to the rubber main spring;

[0007] A suspension liquid chamber is formed in the rubber main spring, and the suspension liquid chamber contains liquid; a drainage hole connected to the suspension liquid chamber is opened at the bottom of the rubber main spring, and the drainage hole is connected to a liquid guide pipe, and a temperature control on-off component is provided at the drainage hole;

[0008] The temperature control on-off component can open the drain hole under a set high temperature condition to discharge the liquid in the suspension liquid chamber to the outside of the cabin through the liquid conduit.

[0009] Furthermore, the rubber main spring is connected to the suspension frame through an inner core, the inner core is located at the bottom of the rubber main spring, the drainage hole passes through the inner core from the bottom of the rubber main spring downward, and the liquid guide tube is arranged at the bottom of the inner core.

[0010] Furthermore, a connecting seat is provided at the bottom of the suspension frame, and the connecting seat is fixedly mounted on a crossbeam in the vehicle body frame. The liquid guide tube passes through the connecting seat and the crossbeam to discharge the liquid to the outside of the cabin.

[0011] Furthermore, a connecting plate is provided on the top of the suspension frame, and the connecting plate is extended toward one side of the suspension frame to connect to the vehicle body frame; the suspension bracket is connected to the upper part of the rubber main spring and extends toward the side of the suspension frame opposite to the connecting plate.

[0012] Furthermore, the temperature control on-off component is any one of a thermal sensitive element, a fusible alloy plug, and a temperature control valve.

[0013] Furthermore, the temperature-controlled on-off component adopts a heat-sensitive element; the heat-sensitive element includes a sealed glass tube, and the glass tube is filled with a working fluid that expands when heated.

[0014] Furthermore, the working fluid is kerosene or ether.

[0015] Furthermore, the glass tube is inserted into the drainage hole, and a sealant is applied between the glass tube and the drainage hole.

[0016] Furthermore, the wall thickness of the glass tube is 0.1 mm to 3 mm.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The hydraulic suspension assembly of the utility model is provided with a drainage hole at the bottom of the rubber main spring and a heat-sensitive element is sealed in the drainage hole. When the cabin is operating normally, the heat-sensitive element can well seal the drainage hole to ensure that the liquid in the suspension liquid chamber does not leak. When a fire occurs in the cabin, the heat-sensitive element can be broken by the high temperature of the fire to open the drainage hole, so that the liquid in the suspension liquid chamber is discharged to the outside of the cabin through the liquid guide pipe, thereby preventing the liquid in the hydraulic suspension assembly from leaking into the cabin and participating in the combustion when the cabin is on fire, thereby reducing the safety risk.

[0019] In addition, an inner core is arranged at the bottom of the rubber main spring to improve the installation stability of the rubber main spring. The drainage hole is opened at the bottom of the rubber main spring and is arranged through the inner core, so that the drainage hole has a sufficient length and an inner wall that is not easily deformed, which is convenient for setting the heat-sensitive element in the drainage hole and ensuring the sealing effect of the heat-sensitive element on the drainage hole.

[0020] Another object of the present invention is to provide a vehicle, wherein the hydraulic suspension assembly of the present invention is arranged in the engine room of the vehicle. The vehicle of the present invention has the technical advantages possessed by the above-mentioned hydraulic suspension assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, top and bottom involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic structural diagram of the hydraulic suspension assembly according to the first embodiment of the utility model being arranged on a vehicle body frame;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the hydraulic suspension assembly according to an embodiment of the utility model;

[0024] Figure 3 A top view of the hydraulic suspension assembly according to an embodiment of the utility model;

[0025] Figure 4 A side view of the hydraulic mount assembly according to an embodiment of the utility model;

[0026] Figure 5 It is a front view of the hydraulic suspension assembly according to the embodiment of the utility model;

[0027] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the part indicated by AA.

[0028] Description of reference numerals:

[0029] 1. Hydraulic suspension assembly; 2. Vehicle frame; 20. Crossbeam;

[0030] 10. Suspension liquid chamber; 11. Suspension bracket; 110. Connection hole; 12. Rubber main spring; 120. Partition; 13. Glass tube; 14. Inner core; 15. Liquid guide tube; 16. Suspension frame; 160. Connection seat; 161. First mounting hole; 17. Connection plate; 170. Second mounting hole; 171. Fastening bolt. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] In the description of the present invention, it should be stated that if there are terms indicating directions or positional relationships such as "up, down, left, right, front, back, inside, outside", etc., they are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operate in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installed", "connected", "connection", and "connector" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific circumstances. The limiting terms such as "first, second, A, B, C, D" that appear in the description of the present utility model are only used to distinguish similar features of different positions, attributes or uses, so as to achieve the purpose of avoiding ambiguity and confusion in the description, and cannot be understood as indicating or implying relative importance.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] Embodiment 1

[0036] This embodiment relates to a hydraulic suspension assembly, which can prevent the liquid in the hydraulic suspension assembly 1 from leaking into the cabin and participating in the combustion when the cabin is on fire, thereby reducing the risk of cabin fire; an exemplary structure thereof is as follows Figures 1 to 6 shown.

[0037] In general, the hydraulic suspension assembly includes a suspension frame 16, a rubber main spring 12 arranged on the suspension frame 16, and a suspension bracket 11 connected to the rubber main spring 12. A suspension liquid chamber 10 is formed in the rubber main spring 12, and the suspension liquid chamber 10 contains liquid; a drainage hole connected to the suspension liquid chamber 10 is opened at the bottom of the rubber main spring 12, and the drainage hole is connected to a liquid guide tube 15. At the same time, a temperature control on-off component is provided at the drainage hole; under normal working conditions, the temperature control on-off component can block the drainage hole; under set high temperature conditions, the temperature control on-off component can make the drainage hole conductive, so as to discharge the liquid in the suspension liquid chamber 10 to the outside of the cabin through the liquid guide tube 15.

[0038] Specifically, the rubber main spring 12 of this embodiment is connected to the suspension frame 16 through the inner core 14. The inner core 14 is located at the bottom of the rubber main spring 12. The drainage hole runs downward through the inner core 14 from the bottom of the rubber main spring 12. The liquid guide tube 15 is arranged at the bottom of the inner core 14. The inner core 14 is arranged at the bottom of the rubber main spring 12 to improve the installation stability of the rubber main spring 12. The drainage hole is opened at the bottom of the rubber main spring 12 and is arranged in the inner core 14 through and through, so that the drainage hole has a sufficient length and an inner wall that is not easily deformed, which is convenient for the arrangement of the temperature control on-off component in the drainage hole and ensures the sealing effect of the temperature control on-off component on the drainage hole.

[0039] The specific structural form of the suspension frame 16 can be flexibly designed according to the location of the rubber main spring 12 and the suspension bracket 11. Figure 2 , Figure 3 and Figure 4 As shown, the suspension frame 16 is a "J"-shaped frame structure, and the rubber main spring 12 is fixedly mounted in the middle of the suspension frame 16. A connecting seat 160 is provided at the bottom of the suspension frame 16, and a first mounting hole 161 for connecting to the vehicle body frame 2 is opened on the connecting seat 160. Specifically, the connecting seat 160 is fixedly mounted on the cross beam 20 in the vehicle body frame 2, and the above-mentioned liquid guide tube 15 passes through the connecting seat 160 and the cross beam 20 in sequence to discharge the liquid in the suspension liquid chamber 10 to the outside of the cabin.

[0040] Meanwhile, preferably, a connecting plate 17 is provided on the top of the suspension frame 16 of the present embodiment. The connecting plate 17 is extended toward one side of the suspension frame 16 , and a second mounting hole 170 for connecting to the vehicle body frame 2 is provided on the connecting plate 17 .

[0041] By setting a connection seat 160 at the bottom of the suspension frame 16 and a connection plate 17 at the top, a multi-point fixed connection between the suspension frame 16 and the vehicle body frame 2 can be achieved by using the first mounting hole 161 on the connection seat 160 and the second mounting hole 170 on the connection plate 17, thereby improving the installation firmness of the hydraulic suspension assembly 1 on the vehicle body frame 2. One end of the connection plate 17 is fixedly connected to the top of the suspension frame 16 by a fastening bolt 171, and the other end can be set according to the shape of the corresponding part on the vehicle body frame 2, closely matched with the corresponding part, and fixedly connected to the vehicle body frame 2 by a fastener.

[0042] Based on the above settings, if Figure 6As shown, the suspension bracket 11 is preferably connected to the upper part of the rubber main spring 12 and extended toward the side of the suspension frame 16 facing away from the connecting plate 17, and a connecting hole 110 for connecting the power assembly is provided on the suspension bracket 11. Corresponding to the part where the suspension bracket 11 is connected, a partition 120 is provided inside the suspension liquid chamber 10, and the damping liquid above and below the partition 120 flows through the throttling structure on the partition 120 to realize the shock absorbing function of the rubber main spring 12.

[0043] The suspension bracket 11 is arranged at the upper part of the rubber main spring 12 and extends toward the other side of the suspension frame 16 (the side away from the connecting plate 17 and the vehicle body frame 2), which is suitable for the layout of the power assembly and facilitates the fixed connection between the suspension bracket 11 and the power assembly. Since the suspension bracket 11 is located on the upper part of the rubber main spring 12, the rubber main spring 12 can provide a larger buffer space below the suspension bracket 11, thereby improving the shock absorption and buffering effect of the rubber main spring 12.

[0044] There are of course many options for setting the temperature control on-off components, such as using a heat sensitive element, a fusible alloy plug, a temperature control valve, etc. When a plug made of a fusible alloy is used, when a fire in the cabin causes high temperature, the fusible alloy plug will melt, thereby opening the drain hole; when a temperature control valve is used, the temperature in the cabin can be detected, and when the temperature reaches the set high temperature condition, the temperature control valve can be controlled to open to open the drain hole. The temperature control valve can be an electric valve or a self-acting temperature control valve.

[0045] In this embodiment, the temperature control on-off component adopts a heat sensitive element that can break under set high temperature conditions to open the drain hole; for example, the glass ball in the fire sprinkler and other existing products. Figure 6 As shown, the thermal sensor of this embodiment includes a sealed glass tube 13, and the glass tube 13 is filled with a working fluid that expands when heated. The thermal sensor is in the form of a columnar glass tube 13, and the working fluid filled in the glass tube 13 can be broken in time when subjected to high temperature, thereby making the drainage hole conductive.

[0046] There are many types of working fluid in the glass tube 13, preferably kerosene or ether. The wall thickness of the glass tube 13 is preferably set between 0.1 mm and 3 mm; for example, it is set to 0.5 mm, 0.8 mm, 1.2 mm, 2.5 mm, 3.0 mm, etc. According to the expansion coefficient and other parameters of the selected working fluid, by reasonably setting the wall thickness of the glass tube 13, the temperature conditions required for the glass tube 13 to break can be changed, so that the glass tube 13 breaks under reasonably set high temperature conditions. For example, by setting a suitable wall thickness, the rupture temperature of the glass tube 13 can be set to 120°C of the partition. When the cabin is on fire, after the temperature reaches a certain temperature (such as 150°C), the glass tube 13 is broken, the drainage hole is connected, and the damping liquid in the suspension liquid chamber 10 is discharged to the outside of the cabin through the liquid guide tube 15, thereby reducing the toxic and harmful gases generated by combustion and avoiding more intense combustion in the cabin.

[0047] In addition, the glass tube 13 of this embodiment is inserted into the drainage hole, and a sealant is applied between the glass tube 13 and the drainage hole. In order to improve the sealing reliability between the glass tube 13 and the drainage hole and ensure that the drainage hole does not leak when the cabin is operating normally, the glass tube 13 and the drainage hole are bonded and inserted by a sealant, which can greatly improve the insertion firmness and sealing effect of the glass tube 13.

[0048] In summary, the hydraulic suspension assembly of the present embodiment is provided with a drainage hole at the bottom of the rubber main spring 12, and a heat-sensitive element is sealed in the drainage hole. When the cabin is operating normally, the heat-sensitive element can well seal the drainage hole to ensure that the liquid in the suspension liquid chamber 10 does not leak. When a fire occurs in the cabin, the heat-sensitive element can be broken by the high temperature of the fire to open the drainage hole, so that the liquid in the suspension liquid chamber 10 is discharged to the outside of the cabin through the liquid conduit 15, thereby preventing the liquid in the hydraulic suspension assembly 1 from leaking into the cabin and participating in the combustion when the cabin is on fire.

[0049] Embodiment 2

[0050] This embodiment relates to a vehicle, in which the hydraulic suspension assembly provided in the first embodiment is installed.

[0051] By adopting the hydraulic suspension assembly of the utility model, when an abnormal situation such as a vehicle collision occurs and causes a fire in the cabin, the glass tube 13 in the hydraulic suspension assembly 1 will rupture by itself before the rubber main spring 12 is burned and causes the internal liquid to leak, so that the liquid is discharged to the outside of the cabin through the liquid guide tube 15, which can prevent the liquid in the hydraulic suspension assembly from leaking into the cabin and participating in the combustion when the cabin is on fire, thereby reducing safety risks.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic mount assembly, characterized in that: It comprises a suspension frame (16), a rubber main spring (12) arranged on the suspension frame (16), and a suspension bracket (11) connected to the rubber main spring (12); A suspension liquid chamber (10) is formed in the rubber main spring (12), and the suspension liquid chamber (10) contains liquid; a liquid discharge hole connected to the suspension liquid chamber (10) is formed at the bottom of the rubber main spring (12), and the liquid discharge hole is connected to a liquid guide tube (15), and a temperature control on-off component is provided at the liquid discharge hole; The temperature control on-off component can open the liquid drain hole under a set high temperature condition to discharge the liquid in the suspension liquid chamber (10) to the outside of the cabin through the liquid conduit (15).

2. The hydraulic mount assembly according to claim 1, characterized in that: The rubber main spring (12) is connected to the suspension frame (16) via an inner core (14); the inner core (14) is located at the bottom of the rubber main spring (12); the drainage hole passes through the inner core (14) from the bottom of the rubber main spring (12) downward; and the liquid guide tube (15) is arranged at the bottom of the inner core (14).

3. The hydraulic mount assembly according to claim 1, characterized in that: A connecting seat (160) is provided at the bottom of the suspension frame (16), and the connecting seat (160) is fixed on a crossbeam (20) in the vehicle body frame (2). The liquid guide tube (15) passes through the connecting seat (160) and the crossbeam (20) to discharge the liquid to the outside of the cabin.

4. The hydraulic mount assembly according to claim 3, characterized in that: A connecting plate (17) is provided on the top of the suspension frame (16), and the connecting plate (17) is extended toward one side of the suspension frame (16) to connect to the vehicle body frame (2); The suspension bracket (11) is connected to the upper part of the rubber main spring (12) and is extended toward the side of the suspension frame (16) facing away from the connecting plate (17).

5. The hydraulic mount assembly according to any one of claims 1 to 4, characterized in that: The temperature control on-off component is any one of a heat sensitive element, a fusible alloy plug, and a temperature control valve.

6. The hydraulic mount assembly according to claim 5, characterized in that: The temperature control on-off component adopts a heat sensitive element; the heat sensitive element comprises a sealed glass tube (13), and the glass tube (13) is filled with a working fluid that expands when heated.

7. The hydraulic mount assembly according to claim 6, characterized in that: The working fluid is kerosene or ether.

8. The hydraulic mount assembly according to claim 6, characterized in that: The glass tube (13) is inserted into the drainage hole, and a sealant is applied between the glass tube (13) and the drainage hole.

9. The hydraulic mount assembly according to claim 6, characterized in that: The wall thickness of the glass tube (13) is 0.1 mm to 3 mm.

10. A vehicle, characterized in that: The hydraulic suspension assembly according to any one of claims 1 to 9 is disposed in the engine room of the vehicle.

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