Hydraulic suspension pump mounting structure and vehicle

Abstract

The utility model discloses a hydraulic suspension pump installation structure and a vehicle, the hydraulic suspension pump installation structure is arranged in a front cabin of the vehicle and comprises a cabin front cross beam and a hydraulic suspension pump, the front cabin is divided into a front upper area, a front lower area, a rear upper area and a rear lower area along the vehicle length direction and the vehicle height direction, the cabin front cross beam is located in the front upper area, and the cabin front cross beam is located in the rear lower area. The guide rail extends in the vehicle width direction. The hydraulic suspension pump comprises a pump body and a pump support, and the pump body is fixedly connected to the pump support and fixedly connected to the rear side of the cabin front cross beam through the pump support. The hydraulic suspension pump is fixed on the rear side of the cabin front cross beam, so that the hydraulic suspension pump can be staggered with a power system in the height direction of the vehicle, and an energy absorption space which is large enough is reserved behind the hydraulic suspension pump in the length direction of the vehicle, so that the collision performance of the vehicle can be improved; meanwhile, the structural strength of the cabin front cross beam can meet the dynamic stiffness requirement of a hydraulic suspension pump installation point, and the connection stability of a hydraulic suspension pump is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle structure technical field, concretely relates to a kind of hydraulic suspension pump mounting structure and vehicle. BACKGROUND

[0002] Active hydraulic suspension technology as the emerging adjustment technology of vehicle suspension system, mainly through adjusting oil flow to realize variable damping and automatic adjustment vehicle height function, can make vehicle more accurate and stable operation, improve car operating stability and ride comfort.

[0003] At present, the oil flow adjustment function of active hydraulic suspension system is mainly realized by hydraulic suspension pump, since the volume and weight of hydraulic suspension pump are large, and according to the arrangement requirement of its performance control, the front hydraulic suspension pump can only be arranged near the front engine compartment. Active hydraulic suspension technology has been equipped on domestic mainstream brand cars in recent years, and the reference of technical field is limited, and the technical barrier is high. At present, the front hydraulic suspension pump of domestic and foreign vehicles is basically arranged between the front cross beam of front subframe and radiator, and the arrangement mode of other parts needs to be adjusted accordingly. But with the increase of the number of front engine compartment parts, the space of front engine compartment is more and more compact, and the collision demand of vehicle is increasing, so the front hydraulic suspension pump arranged in this area is easy to hit engine and other parts when collision occurs, which affects the collision energy absorption function of front engine compartment. SUMMARY

[0004] In view of the above problems, the utility model embodiment provides a kind of hydraulic suspension pump mounting structure and vehicle, can realize the installation of hydraulic suspension pump under the premise of not affecting the collision energy absorption function of front engine compartment.

[0005] According to an aspect of the utility model embodiment, a kind of hydraulic suspension pump mounting structure is provided, arranged in the front engine compartment of vehicle, comprising: engine compartment front cross beam, front engine compartment is divided into front upper area, front lower area, rear upper area and rear lower area along the vehicle length direction and vehicle height direction, engine compartment front cross beam is located in front upper area, and is extended along the vehicle width direction and is arranged;And hydraulic suspension pump, hydraulic suspension pump includes pump body and pump support, pump body is fixedly connected to pump support, and is fixedly connected to the rear side of engine compartment front cross beam by pump support.

[0006] In an exemplary embodiment of the utility model, the engine compartment front cross beam is provided with a leg portion, the leg portion is fixedly connected to the lower end surface of the engine compartment front cross beam, and is extended rearward along the vehicle length direction to form a containing space suitable for placing the pump body at the rear side of the engine compartment front cross beam;Pump support is fixedly connected with leg portion.

[0007] In an exemplary embodiment of the present invention, the support leg portion includes at least two support leg members, and the at least two support leg members are spaced apart along the extension direction of the front cross beam of the cabin; the pump bracket is correspondingly overlapped with the support leg members and fixedly connected to the support leg members.

[0008] In an exemplary embodiment of the present invention, a first vibration damping member is provided at a connection between the pump bracket and the front cross beam of the cabin.

[0009] In an exemplary embodiment of the present invention, the first vibration damping member is a rubber pad or a rubber bushing.

[0010] In an exemplary embodiment of the present invention, it also includes: a front end frame, which is located on the front side of the front cross beam of the cabin and is fixedly connected to the front cross beam of the cabin in the front upper area and fixedly connected to the longitudinal beam of the front cabin in the front lower area; the pump bracket includes an upper bracket and a lower bracket, and the lower bracket is connected to the front cross beam of the cabin; the upper bracket extends forward along the vehicle length direction and is fixedly connected to the front end frame.

[0011] In an exemplary embodiment of the present invention, the front end frame is an integrated frame structure composed of an upper crossbeam, a lower crossbeam, a left column and a right column connected end to end, which is suitable for connecting the radiator or intercooler of the vehicle; the upper end surface of the upper crossbeam is provided with a mounting portion, and the upper bracket is overlapped with the mounting portion and fixedly connected to the mounting portion.

[0012] In an exemplary embodiment of the present invention, a second vibration damping member is provided at the connection between the pump bracket and the front end frame.

[0013] In an exemplary embodiment of the present invention, the second vibration damping member is a rubber pad or a rubber bushing.

[0014] According to a second aspect of an embodiment of the present utility model, a vehicle is provided, comprising any one of the above-mentioned hydraulic suspension pump mounting structures.

[0015] The utility model fixes the hydraulic suspension pump to the rear side of the front cross beam of the cabin so that the hydraulic suspension pump is located as a whole in the front upper area of ​​the vehicle's front cabin, while the engine and other front drive power systems are usually arranged in the rear lower area of ​​the front cabin. This makes it possible for the hydraulic suspension pump arranged in the front upper area to be staggered with the power system arranged in the rear lower area in the direction of vehicle height, and reserves a sufficiently large energy-absorbing space behind the hydraulic suspension pump in the direction of vehicle length, which is beneficial to improving the collision performance of the vehicle; at the same time, the front cross beam of the cabin can transmit the vibration generated by the hydraulic suspension pump backward to the front cabin frame, and its structural strength can meet the dynamic stiffness requirements of the hydraulic suspension pump installation point, thereby ensuring the connection stability of the hydraulic suspension pump.

[0016] The above description is only an overview of the technical solution of the embodiment of the utility model. In order to more clearly understand the technical means of the embodiment of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the utility model more obvious and easy to understand, the specific implementation method of the utility model is specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram showing the connection of the hydraulic suspension pump installation structure in the front engine compartment according to an embodiment of the present utility model is shown;

[0019] Figure 2 A schematic diagram showing the force transmission path of the hydraulic suspension pump installation structure in the front engine compartment according to an embodiment of the present utility model is shown;

[0020] Figure 3 A schematic structural diagram of a hydraulic suspension pump installation structure according to an embodiment of the present utility model is shown;

[0021] Figure 4 A top view of the hydraulic suspension pump mounting structure according to an embodiment of the present utility model is shown.

[0022] Description of Figure Numbers:

[0023] 1-cabin front beam, 11-support leg, 111-support leg piece,

[0024] 2-Hydraulic suspension pump, 21-Pump body, 22-Pump bracket, 221-Upper bracket, 222-Lower bracket,

[0025] 3- First vibration damping member,

[0026] 4-front end frame, 41-upper crossbeam, 411-installation part,

[0027] 5- Second vibration damping member,

[0028] 100-front cabin, 101-front upper area, 102-front lower area, 103-rear upper area, 104-rear lower area.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0031] In addition, the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solutions of the present invention can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] It should be noted that the front, rear, left, right, up and down directions mentioned in the embodiments of the present invention, unless otherwise specified, are all based on the corresponding directions of the vehicle as reference standards. For example, the vehicle length direction is the vehicle length direction, and the front and rear are the two ends of the vehicle length direction; the vehicle width direction is the vehicle width direction, and the left and right are the two ends of the vehicle width direction; the vehicle height direction is the vehicle height direction, and the up and down are the two ends of the vehicle height direction. No further details will be given later.

[0034] like Figures 1 to 4As shown, this embodiment provides a hydraulic suspension pump mounting structure, which is arranged in the front cabin 100 of the vehicle, wherein the front cabin 100 is divided into a front upper area 101, a front lower area 102, a rear upper area 103 and a rear lower area 104 along the vehicle length and vehicle height directions, and the hydraulic suspension pump mounting structure includes a cabin front cross beam 1 and a hydraulic suspension pump 2. The cabin front cross beam 1 is also called a shotgun front cross beam, which is located in the front upper area 101 of the front cabin 100 and extends along the vehicle width direction. It is fixedly connected to the shotgun (the upper part of the front wheel cover and the middle area of ​​the A-pillar vertical plate) at both ends of the extension direction; the hydraulic suspension pump 2 includes a pump body 21 and a pump bracket 22. The pump body 21 is fixedly connected to the pump bracket 22 and is fixedly connected to the rear side of the cabin front cross beam 1 through the pump bracket 22. When a collision occurs, the collision energy is mainly transmitted through the following three force transmission paths: the first path is from the front crossbeam 1 of the cabin to the shotgun (the area between the upper part of the front wheel arch and the vertical plate of the A-pillar); the second path is from the front anti-collision beam to the main energy absorption box, and then to the longitudinal beam of the vehicle body; the third path is from the secondary anti-collision beam to the secondary energy absorption box, and finally to the subframe of the chassis. The hydraulic suspension pump 2 of the traditional design is basically arranged between the front crossbeam of the front subframe and the radiator, that is, on the third path, while the front drive power system such as the engine is usually arranged in the front subframe, that is, the rear lower area 104 of the front cabin 100. As a result, the hydraulic suspension pump 2 is extremely likely to hit the engine and other components in the event of a collision, affecting the collision energy absorption function of the front cabin 100. In this regard, the hydraulic suspension pump installation structure provided by the embodiment of the present invention arranges the hydraulic suspension pump 2 on the first path. The hydraulic suspension pump 2 in this area can be staggered with the engine and other power systems in the vehicle height direction, and a sufficiently large energy absorption space is reserved behind the hydraulic suspension pump 2 in the vehicle length direction to ensure that the force transmission is not affected after the vehicle collides, which is beneficial to improving the collision performance of the vehicle; at the same time, the vibration generated by the hydraulic suspension pump 2 can be transmitted backward through the cabin front cross beam 1 to the front cabin frame such as the shotgun and the front cabin longitudinal beam. The structural strength of the cabin front cross beam 1 can also meet the dynamic stiffness requirements of the installation point of the hydraulic suspension pump 2, thereby ensuring the connection stability of the hydraulic suspension pump 2.

[0035] It is understood that the fixed connection method between the pump body 21 and the pump bracket 22 includes, but is not limited to, a clamping connection, a riveting connection, or a bolting connection. Similarly, the fixed connection method between the pump bracket 22 and the cabin front crossbeam 1 includes, but is not limited to, a clamping connection, a riveting connection, or a bolting connection. Preferably, a bolting connection is used, which allows the hydraulic suspension pump 2 to be easily removed from the cabin front crossbeam 1. This is very convenient for repairing, replacing, or cleaning the hydraulic suspension pump 2. At the same time, the bolting connection also makes the connection between the hydraulic suspension pump 2 and the cabin front crossbeam 1 more secure and reliable.

[0036] In some embodiments, asFigures 2 to 4 As shown, the cabin front cross beam 1 is provided with a leg portion 11, which can be fixedly connected to the lower end face of the cabin front cross beam 1 in a manner of welding, clamping, riveting, bolt connection or one-piece forming, and extends rearward along the vehicle length direction to form a containing space suitable for placing the pump body 21 at the rear side of the cabin front cross beam 1. In this way, the hydraulic suspension pump 2 can be conveniently placed in the containing space above the leg portion 11, and the pump support 22 is fixedly connected with the leg portion 11 by bolts. Through the provision of the leg portion 11, the installation of the hydraulic suspension pump 2 can be conveniently and quickly realized without changing the force transmission structure of the cabin front cross beam 1, and the size of the leg portion 11 can be adjusted according to the internal space requirement of the front cabin to meet the installation requirement of the hydraulic suspension pump 2 of multiple models or multiple vehicle types.

[0037] In some embodiments, as shown in Figures 2 to 4 The leg portion 11 includes at least two leg pieces 111, which are distributed at intervals along the extension direction of the cabin front cross beam 1; the pump support 22 is overlapped on the leg pieces 111 and is fixedly connected with the leg pieces 111 by bolts. Through the provision of multiple leg pieces 111, the material usage of the leg portion 11 can be reduced under the premise of meeting the bearing requirement of the hydraulic suspension pump 2.

[0038] For example, as shown in Figure 3 and Figure 4 In the present embodiment, two leg pieces 111 are provided, which are symmetrically arranged at both sides of the hydraulic suspension pump 2 along the extension direction of the cabin front cross beam 1, which not only reduces the material usage between the two leg pieces 111, but also evenly shares the weight and load of the hydraulic suspension pump 2, thereby improving the connection stability of the hydraulic suspension pump 2.

[0039] In some embodiments, as shown in Figure 3 and Figure 4 A first damping member 3 can be arranged at the connection between the pump support 22 and the cabin front cross beam 1, which in the present embodiment is arranged at the connection between the pump support 22 and the leg pieces 111. Through the provision of the first damping member 3, not only the vibration generated when the pump body 21 is working can be weakened from being transmitted to the vehicle body, but also the vibration generated when the vehicle is running can be weakened from being transmitted to the pump body 21, thereby prolonging the service life of the pump body 21.

[0040] Specifically, the first shock absorber 3 can be a rubber pad or a rubber bushing. The rubber pad or rubber bushing has good elasticity and cushioning properties, and can effectively absorb and reduce energy transfer when subjected to impact or vibration. This can reduce the impact of vibration and impact on the vehicle body structure and passenger space, and provide a more comfortable driving experience. At the same time, the rubber material has high shock resistance and impact resistance, and can effectively reduce the impact caused by uneven road surface or external forces, play a shock-absorbing role, protect the pump body 21 from damage by vibration and impact, and extend its life and reliability.

[0041] In some embodiments, as Figures 1 to 4 As shown, the hydraulic suspension pump mounting structure also includes a front frame 4, located forward of the cabin front crossbeam 1. It is fixedly connected to the cabin front crossbeam 1 at the front upper region 101 and to the longitudinal beam of the front cabin 100 at the front lower region 102. The pump bracket 22 includes an upper bracket 221 and a lower bracket 222, with the lower bracket 222 connected to the cabin front crossbeam 1. The upper bracket 221 extends forward along the vehicle length and is fixedly connected to the front frame 4. This allows the hydraulic suspension pump 2 to be supported by the front frame 4, further improving its connection stability. Furthermore, vibrations generated by the hydraulic suspension pump 2 are transmitted downward through the front frame 4 to the front cabin longitudinal beam, optimizing the force transmission path of the hydraulic suspension pump 2, reducing the transmission of vibrations generated by the pump body 21 during operation to the vehicle body, and improving the vehicle's NVH performance.

[0042] For example, if Figures 2 to 4 As shown, the front end frame 4 is an integrated frame structure composed of an upper crossbeam 41, a lower crossbeam, a left column and a right column connected end to end, which can be used to connect the vehicle's radiator or intercooler and provide a mounting point for the vehicle's radiator or intercooler; wherein, the upper end surface of the upper crossbeam 41 is provided with a mounting portion 411, and a mounting hole is opened on the mounting portion 411 along the vehicle height direction. In this way, the upper bracket 221 can be overlapped with the mounting portion 411, and the upper bracket 221 and the mounting portion 411 are fixedly connected by bolts, which is convenient and quick to operate, and the connection is stable and reliable.

[0043] In some embodiments, as Figure 4 As shown, a second shock absorber 5 can be provided at the connection between the pump bracket 22 and the front end frame 4. In this embodiment, the second shock absorber 5 is provided at the connection between the upper bracket 221 and the mounting portion 411. By providing the second shock absorber 5, not only can the vibration generated when the pump body 21 is working be reduced from being transmitted to the vehicle body, but the vibration generated when the vehicle is running can also be reduced from being transmitted to the pump body 21, thereby extending the service life of the pump body 21.

[0044] Similarly, the second vibration damper 5 may be a rubber pad or a rubber bushing, and the effect produced is the same as that of the first vibration damper 3 made of the rubber pad or the rubber bushing, which will not be described in detail here.

[0045] Furthermore, in another embodiment, a vehicle is provided, including the hydraulic suspension pump mounting structure of the aforementioned embodiment. For other structural details and operating principles of the hydraulic suspension pump mounting structure, please refer to the aforementioned description of the system embodiment. Since the hydraulic suspension pump mounting structure has the aforementioned technical effects, a vehicle incorporating the hydraulic suspension pump mounting structure should also have the corresponding technical effects, and therefore will not be further elaborated here.

[0046] It is understood that, in this utility model, unless otherwise expressly specified or limited, terms such as "assembly" and "connection" should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined. And the terms "some embodiments" and "exemplarily" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention.

[0048] The illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0049] Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Ordinary technicians in this field can modify, replace and modify the above embodiments within the scope of the present invention. Therefore, any changes or modifications made in accordance with the claims and description of the present invention should fall within the scope of the present utility model patent.

Claims

1. A hydraulic suspension pump mounting structure, arranged in the front cabin of a vehicle, characterized in that: include: A front cross beam for the engine room, wherein the front engine room is divided into a front upper area, a front lower area, a rear upper area, and a rear lower area along the vehicle length and vehicle height directions, and the front cross beam for the engine room is located in the front upper area and extends along the vehicle width direction; and A hydraulic suspension pump comprises a pump body and a pump bracket, wherein the pump body is fixedly connected to the pump bracket and is fixedly connected to the rear side of the front cross beam of the cabin through the pump bracket.

2. The hydraulic suspension pump mounting structure according to claim 1, characterized in that: The front cross beam of the cabin is provided with a support leg portion, which is fixedly connected to the lower end surface of the front cross beam of the cabin and extends backward along the vehicle length direction to form a accommodating space suitable for placing the pump body on the rear side of the front cross beam of the cabin; the pump bracket is fixedly connected to the support leg portion.

3. The hydraulic suspension pump mounting structure according to claim 2, characterized in that: The support leg portion includes at least two support leg members, and the at least two support leg members are spaced apart along the extension direction of the front cross beam of the cabin; the pump bracket is correspondingly overlapped with the support leg members and fixedly connected to the support leg members.

4. The hydraulic suspension pump mounting structure according to claim 1, characterized in that: A first vibration damping member is provided at the connection between the pump bracket and the front cross beam of the cabin.

5. The hydraulic suspension pump mounting structure according to claim 4, characterized in that: The first vibration damping member is a rubber pad or a rubber bushing.

6. The hydraulic suspension pump mounting structure according to any one of claims 1 to 5, characterized in that: Also includes: a front end frame, the front end frame being located in front of the front cross beam of the nacelle and being fixedly connected to the front cross beam of the nacelle in the front upper region and being fixedly connected to the longitudinal beam of the front nacelle in the front lower region; The pump bracket includes an upper bracket and a lower bracket, the lower bracket is connected to the front cross beam of the cabin; the upper bracket extends forward along the vehicle length direction and is fixedly connected to the front end frame.

7. The hydraulic suspension pump mounting structure according to claim 6, characterized in that: The front end frame is an integrated frame structure consisting of an upper crossbeam, a lower crossbeam, a left column and a right column connected end to end, suitable for connecting a radiator or an intercooler of a vehicle; the upper end surface of the upper crossbeam is provided with a mounting portion, and the upper bracket is overlapped on the mounting portion and fixedly connected to the mounting portion.

8. The hydraulic suspension pump mounting structure according to claim 6, characterized in that: A second vibration damping member is provided at the connection between the pump bracket and the front end frame.

9. The hydraulic suspension pump mounting structure according to claim 8, characterized in that: The second vibration damping member is a rubber pad or a rubber bushing.

10. A vehicle, characterized in that: It comprises the hydraulic suspension pump mounting structure according to any one of claims 1 to 9.

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