CN118182034A - Shock attenuation assembly and vehicle - Google Patents

Abstract

The embodiment of the application relates to the technical field of vehicles, and discloses a damping assembly and a vehicle, which can solve the problems of lower strength of an existing damping tower mounting structure and poor dynamic stiffness performance of a mounting point source point of a damper, wherein the damping assembly comprises a front longitudinal beam and a damping tower, and the front longitudinal beam extends along a first direction and is used for forming a bearing frame of the vehicle; the damping tower comprises a tower body and a first connecting structure arranged on the tower body, and the tower body is provided with a containing cavity; the first connecting structure is arranged close to the front longitudinal beam and is provided with at least two connecting parts which are arranged in parallel and opposite to each other, an installation space is reserved between the two connecting parts, the front longitudinal beam is positioned in the installation space, and the two connecting parts are respectively connected to two opposite sides of the front longitudinal beam. The shock absorbing assembly of the present application is widely used in a variety of vehicles.

Description

Shock attenuation assembly and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a damping assembly and a vehicle.

Background

Along with the increase of the demands of people on vehicles, the requirements of the electric vehicle on the driving experience of the whole vehicle are higher, driving comfort and driving smoothness are greatly focused and are looked on, a damping tower is used as an installation and bearing part of a front suspension system damper, and the requirements on the dynamic stiffness performance of the installation point source of the damping tower are higher.

In the related art, a damping tower is connected with a front longitudinal beam through a single side, the structural connection strength of the damping tower is low, the strength of a mounting point of the damping tower is still to be improved, under the condition that the dynamic stiffness performance index of the source point of the mounting point of the damping tower is low, the shock absorbing capacity of the damping tower is reduced, the shock generated by unevenness of a road surface is easily transmitted to a vehicle body through a suspension and a damping tower component, the driving and riding smoothness of a vehicle can be influenced, and particularly, when the vehicle is accelerated in a curve driving process, the driving experience of a user is poor.

Disclosure of Invention

In order to solve the problems, the application provides the damping assembly and the vehicle, which can strengthen the connection strength and rigidity of the damping tower and the front longitudinal beam, further improve the dynamic rigidity performance of the mounting point source point of the damping tower, improve the ride comfort of driving and riding of the vehicle and improve the driving experience of users.

In a first aspect, the present application provides a shock absorber assembly comprising a front rail and a shock absorber, the front rail extending in a first direction for forming a load-bearing frame of a vehicle; the damping tower comprises a tower body and a first connecting structure arranged on the tower body, and the tower body is provided with a containing cavity; the first connecting structure is arranged close to the front longitudinal beam and is provided with at least two connecting parts which are arranged in parallel and opposite to each other, an installation space is reserved between the two connecting parts, the front longitudinal beam is positioned in the installation space, and the two connecting parts are respectively connected to two opposite sides of the front longitudinal beam.

The damping assembly comprises the front longitudinal beam and the damping tower, wherein the damping tower comprises the tower body, a first connecting structure close to the front longitudinal beam is arranged on the tower body and is connected with the front longitudinal beam, the first connecting structure at least comprises two connecting parts which are arranged in parallel and opposite, an installation space is arranged between the two connecting parts, and the front longitudinal beam is positioned in the installation space, so that the two connecting parts limit the front longitudinal beam in the installation space, the displacement of the tower body in two opposite directions is limited, and because the two connecting parts are respectively connected to two parallel and opposite side surfaces of the front longitudinal beam, the connecting surface of the tower body and the front longitudinal beam is increased, and the connecting strength and rigidity of the tower body and the front longitudinal beam are further enhanced, thereby improving the installation stability of the damping tower and the dynamic rigidity performance of the source point of the installation point of the damping tower. Compared with the prior art that the damping tower is connected with the front longitudinal beam by a single side, the structural connection strength is not high, the stress of the front longitudinal beam is unbalanced, and the mounting point strength of the damping tower is not high. The connecting strength and rigidity of the shock absorber and the front longitudinal beam can be enhanced, dynamic rigidity performance of a source point of a mounting point of the shock absorber is further improved, shock absorbing capacity of the shock absorber is improved, driving and riding smoothness of a vehicle is improved, and driving experience of a user is improved.

In one implementation manner provided by the application, the first connecting structure further comprises an abutting surface formed by the end part of the tower body, which faces the front longitudinal beam, the two connecting parts are respectively positioned at two sides of the abutting surface, the two connecting parts and the abutting surface enclose an installation space, and the abutting surface is fixedly connected with the front longitudinal beam.

In one implementation manner provided by the application, the cross section of the front longitudinal beam is rectangular, the abutting surface is fixedly connected with the upper surface of the front longitudinal beam, and the two connecting parts are respectively and fixedly connected with the two opposite side walls of the front longitudinal beam.

In one implementation manner provided by the application, at least one of the two connecting parts is integrally formed with the tower body.

In one implementation manner provided by the application, at least one of the two connecting parts is a connecting sheet, the connecting sheet and the tower body are manufactured separately, and the connecting sheet is fixedly connected with the tower body through a fastening structure.

In one implementation manner provided by the application, the connecting piece is provided with the first connecting hole and the second connecting hole, the front longitudinal beam is fixedly connected with the connecting piece through the first connecting hole, and the tower body is fixedly connected with the connecting piece through the second connecting hole.

In one implementation manner provided by the application, the connecting piece is provided with a plurality of first connecting holes and second connecting holes, and the first connecting holes and the second connecting holes are arranged near the outer edge of the connecting piece and are circumferentially distributed at intervals near the outer edge of the connecting piece.

In one implementation manner provided by the application, the middle part of the connecting sheet is provided with the lightening hole, and the lightening hole is staggered with the first connecting hole and the second connecting hole.

In one implementation of the present application, the shock absorbing assembly includes a front frame connector extending in a second direction, an end of the front frame connector facing the front rail being connected to the connecting piece such that the front frame connector is connected to the front rail and the shock absorbing tower, respectively, the second direction being perpendicular to the first direction.

In a second aspect, the present application provides a vehicle comprising a frame and the shock absorbing assembly provided in any one of the first aspects, a front rail being provided on the frame, and a shock absorber being mounted on the shock absorbing tower.

The vehicle provided by the application has the same technical effects as the vehicle provided by any one of the first aspects, namely, the damping assembly comprises the front longitudinal beam and the damping tower, and the damping tower comprises the tower body, wherein the first connecting structure close to the front longitudinal beam is arranged on the tower body and is connected with the front longitudinal beam, the first connecting structure at least comprises two connecting parts which are arranged in parallel and opposite, an installation space is arranged between the two connecting parts, and the front longitudinal beam is positioned in the installation space, so that the two connecting parts limit the front longitudinal beam in the installation space, the displacement of the tower body in the two opposite directions is limited, and the two connecting parts are respectively connected on the two parallel and opposite side surfaces of the front longitudinal beam, so that the connecting surface of the tower body and the front longitudinal beam is increased, the connecting strength and the rigidity of the tower body and the front longitudinal beam are further enhanced, the installation stability of the damping tower can be improved, and the dynamic rigidity performance of the installation point of the damping tower is improved. Compared with the prior art that the damping tower is connected with the front longitudinal beam by a single side, the structural connection strength is not high, the stress of the front longitudinal beam is unbalanced, and the mounting point strength of the damping tower is not high. The connecting strength and rigidity of the shock absorber and the front longitudinal beam can be enhanced, dynamic rigidity performance of a source point of a mounting point of the shock absorber is further improved, shock absorbing capacity of the shock absorber is improved, driving and riding smoothness of a vehicle is improved, and driving experience of a user is improved.

Drawings

FIG. 1 is a schematic diagram of a shock absorbing assembly according to an embodiment of the present application;

FIG. 2 is an exploded view of a shock absorbing assembly according to an embodiment of the present application;

FIG. 3 is a second schematic diagram of a shock absorbing assembly according to an embodiment of the present application;

FIG. 4 is a third schematic diagram of a shock absorbing assembly according to an embodiment of the present application;

FIG. 5 is a schematic view of a shock tower force angle of a shock assembly according to an embodiment of the present application;

FIG. 6 is a schematic illustration of one of the structures of the connecting piece of the shock absorbing assembly according to the embodiment of the present application;

FIG. 7 is a schematic diagram of a shock absorbing assembly according to an embodiment of the present application;

FIG. 8 is a schematic view of a portion of a shock absorbing assembly according to an embodiment of the present application.

Reference numerals illustrate:

1-a front side member; 2-a damping tower; 21-tower body; 211-mounting part; 2111-shock absorber mounting points; 22-a first connection structure; 221-a connection; 222-abutment surface; 223-connecting piece; 2231-a first connection hole; 2232-second connection hole; 2233-lightening holes; 22331-flanging; 2234-securing portion; 23-a second connection structure; 3-front frame connectors; 31-connecting ends; 4-upper longitudinal beams; 5-a cross beam; 6-fastening structure; 61-fasteners; 611-bolt; 612—rivet 612; 613-screw 613; 7-a damper; a-a first direction; b-second direction.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments of the present application and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as unduly limiting the present application.

In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the application and are not intended to limit the scope of the application.

In embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

Furthermore, in the embodiments of the present application, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.

In embodiments of the present application, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral unit; can be directly connected or indirectly connected through an intermediate medium.

In embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present application is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The vehicle in the embodiment of the present application may be classified according to a model, for example, a sedan model, an off-road model, or a Multi-Purpose vehicle (MPV) or other models.

With the increase of the demands of people on vehicles, the requirements of the electric vehicle on the riding experience of the whole vehicle are more and more severe, and the driving comfort and the driving smoothness are greatly focused and are looked at again.

The shock absorber is one of key components of an automobile, provides a mounting structure and mounting points for a chassis front suspension shock absorber, and ground load is generally transferred to all directions of an automobile body through the shock absorber and the shock absorber of a chassis suspension system in the running process of the automobile, so that the control stability of the running process of the automobile is ensured, and the shock absorber is one of key bearing points of the automobile body. The connection strength and the rigidity of the damping tower are key indexes of the vehicle body performance, so that the connection structure of the damping tower and the peripheral parts is particularly important, the damping tower and the peripheral parts are connected to form a damping assembly, the rigidity of the damping assembly is an important factor for measuring the damping capacity of the vehicle, and when the vehicle is subjected to a large impact load, the large impact load can be resisted when the rigidity of the damping assembly is large, so that a comfortable driving environment is provided for a driver. When the shock-absorbing tower rigidity is lower, can lead to the shock-absorbing tower to absorb the ability decline of impact, the vibrations that the unevenness of road surface produced are transmitted to the automobile body very easily through suspension and shock-absorbing tower subassembly, and then transmit to the navigating mate, influence driving travelling comfort.

The dynamic stiffness analysis (Input Point Inertance, IPI) of a source point is also called as source point admittance analysis, the analysis is one of frequency response analysis, unit simple harmonic excitation force is applied to a certain point of a structure, acceleration response or displacement response of the point is measured, and the local stiffness of the position under the action of dynamic load is evaluated according to the magnitude of response amplitude.

The shock absorber tower is used as a shock absorber installation and bearing component, has higher requirements on IPI performance, is connected with a front longitudinal beam in the related art, the front longitudinal beam is two longitudinal beams on the inner sides of a left front wheel and a right front wheel and is also an important component part of a frame, and the front longitudinal beam is a connecting structure of the shock absorber tower for providing a bottom foundation and is also a key force transmission path structure of a vehicle. In the related art, a damping tower is connected with a front longitudinal beam through a single side, the structural connection strength of the damping tower is low, the strength of a mounting point of the damping tower is still to be improved, under the condition that the IPI performance index of the mounting point of the damping tower is low, the shock absorbing capacity of the damping tower is reduced, the shock generated by unevenness of a road surface is easily transmitted to a vehicle body through a suspension and a damping tower component, the driving and riding smoothness of a vehicle can be influenced, and particularly, when the vehicle is accelerated in a curve driving process, the driving experience of a user is poor.

Referring to fig. 1,2 and 3, if the shock absorber is required to be mounted on the vehicle body, it is required to mount the shock absorber on the shock absorbing assembly by mounting the shock absorber on the vehicle body. Specifically, the embodiment of the application provides a vehicle which comprises a shock absorbing assembly, a front longitudinal beam 1 is arranged on a vehicle frame, and a shock absorber 7 is arranged on a shock absorbing tower 2. So, improved shock absorber 2's installation stability, strengthened shock absorber 2 and front longitudinal beam 1's joint strength and rigidity, further improved shock absorber mounting point 2111's IPI performance, the ability that makes shock absorber 2 absorb the impact promotes, improves vehicle driving and ride comfort, has improved user's driving experience.

Here, it should be noted that a plurality of damper mounting points 2111 may be provided on the mounting portion 211 of the damper tower 2, the damper 7 is fixed to the damper tower 2 by the fastening structure 6, the number of the damper mounting points 2111 is not limited here, and 3 damper mounting points 2111 may be provided on the mounting portion 211 of the damper tower 2, and each damper mounting point 2111 is spaced 120 ° apart in the circumferential direction of the mounting portion 211 of the damper tower 2, for example.

Further, referring to fig. 1,2 and 3, an embodiment of the present application provides a shock absorbing assembly including a front side member 1 and a shock absorbing tower 2, the front side member 1 extending in a first direction a for constituting a load-bearing frame of a vehicle; the shock absorber 2 includes a tower body 21 and a first connection structure 22 provided on the tower body 21, the tower body 21 having a housing chamber for providing the shock absorber 7; the first connecting structure 22 is disposed near the front side member 1, and has at least two connecting portions 221 disposed in parallel and opposite to each other, with an installation space between the two connecting portions 221, the front side member 1 being located in the installation space, and the two connecting portions 221 being connected to opposite sides of the front side member 1, respectively.

In this way, since the shock absorbing assembly includes the front side member 1 and the shock absorbing tower 2, and the shock absorbing tower 2 includes the tower body 21, therefore, the first connection structure 22 near the front side member 1 is provided on the tower body 21 and connected with the front side member 1, wherein the first connection structure 22 includes at least two parallel and opposite connection portions 221, there is an installation space between the two connection portions 221, the front side member 1 is located in the installation space, so that the two connection portions 221 limit the front side member 1 in the installation space, and relatively limit the displacement of the tower body 21 in two opposite directions, and further, since the two connection portions 221 are respectively connected on the parallel and opposite sides of the front side member 1, the surface where the tower body 21 is connected with the front side member 1 is increased, the connection strength and rigidity of the tower body 21 with the front side member 1 are further enhanced, thereby being able to improve the installation stability of the shock absorbing tower 2, and further improving the IPI performance of the shock absorbing tower mounting point 1. Compared with the prior art that the shock absorber 2 and the front longitudinal beam 1 are connected on one side, the structural connection strength is not high, and the strength of the mounting point of the shock absorber 2 is not high, the shock absorber comprises the first connecting structure 22 arranged on the tower body 21, the first connecting structure 22 comprises at least two connecting parts 221 which are arranged in parallel and opposite, an installation space is reserved between the two connecting parts 221, the front longitudinal beam 1 is positioned in the installation space, the two connecting parts 221 are respectively connected on two opposite sides of the front longitudinal beam 1, so that the connection strength and the rigidity of the shock absorber 2 and the front longitudinal beam 1 can be enhanced, the stress of the front longitudinal beam 1 is more balanced, the supporting effect of the front longitudinal beam 1 is better, and the installation stability of the shock absorber 2 is improved. Further improves the IPI performance of the shock absorber mounting point 2111, improves the ride comfort of vehicle driving and riding, and improves the driving experience of users.

It should be noted that, the first connecting structure 22 may include at least two connecting portions 221, where the two connecting portions 221 are disposed in parallel and opposite to each other, so that the two connecting portions 221 may be clamped to the front side member 1, and the shock absorber 2 may be more firmly fixed to the front side member 1. Next, the number of the connecting portions 221 is not limited herein, and for example, four connecting portions 221 may be provided to connect with four side surfaces of the front side member 1. Second, the shapes of the two connection parts 221 may be the same or different, and the shape of the connection parts 221 may be various, without limitation, and the shape of the connection parts 221 may be square, rectangular, irregular, or the like, and the height of the connection parts 221 may be the same as the height of the side surfaces to which the front side members 1 are connected, and the connection area of the connection parts 221 with the front side members 1 may be increased, and further, the shock absorber 2 may be various materials, without limitation, and may be a steel structure or an aluminum alloy die cast, for example.

Next, the front side member 1 is two longitudinal members on the inner sides of the left and right front wheels, and is provided under the front cabin of the automobile engine, and the first direction a is the direction in which the vehicle body extends longitudinally, that is, the direction toward the front bumper of the automobile.

Further, the two connecting portions 221 may be fixedly connected to the front side member 1 by the fastening structure 6, and the fastening structure 6 may be of various structures, without limitation, and the two connecting portions 221 may be fixedly connected to the front side member 1 by, for example, gluing, welding, or by the fastener 61. The various fastening structures 6 may be used alone or in combination, and for example, the two connecting portions 221 and the front side member 1 may be bonded or welded and then connected by the fastener 61. And a plurality of fasteners 61 may be provided to fixedly connect the connecting portion 221 and the front side member 1, the types of the plurality of fasteners 61 may be the same, may be different or may be partially the same, the plurality of fasteners 61 may be provided in one or more rows of uniform arrangement, and for example, a double row of fasteners 61 may be provided to fixedly connect the connecting portion 221 and the front side member 1, and the fasteners 61 of the two rows may be different or the same. The fastener 61 may be of various types and is not limited herein, and the fastener 61 may be a rivet 612, a screw or a bolt 611, for example.

If rivet 612 is used, it may be a blind rivet, which is a type of rivet used for single-sided riveting, but is riveted using a special tool, i.e., a rivet gun. When in riveting, the rivet core of the rivet is pulled by a special riveter, so that the rivet body is expanded, and the riveting effect is achieved. And the rivet 612 may be riveted to the front side member 1 using a Self-piercing riveting process (Self-PIERCING RIVET, SPR), which is a cold forming process that forms a firm interlock between the rivet and the panel. And the panels may be joined by a variety of materials, without limitation, steel, aluminum, plastic, and the like, as examples. That is, the rivet 612 may be used to connect the connecting portion 221 with the tower body 21 and the front side member 1 using the SPR process. And the rivets 612 may be arranged in two rows symmetrically arranged at both sides of the connection portion 221.

If screws are used, the screws can be Flow drilling screws, and a Flow drilling screw tightening process (Flow DRILL SCREW, FDS) can be used, wherein the Flow drilling screw tightening process is also called self-tapping screw connection or hot-melting self-tapping connection, the FDS process is to conduct high-speed rotation movement of a servo motor to the screws through a central tightening shaft of FDS equipment, act on plates to be connected to generate friction heat, enable the materials to be plastically deformed under the action of huge axial pressure, form columnar through holes under the extrusion of the Flow drilling screws, and puncture and screw in the plates to be connected through screw tips. Drilling, tapping, and tightening operations can be performed in one pass on the FDS equipment, ultimately creating a fully engaged threaded connection between the plate and screw. That is, the connecting portion 221 and the front side member 1 may be screwed using the FDS process, and the screws may be arranged in two rows symmetrically on both sides of the connecting portion 221.

In addition, the shock absorber 2 can be fixedly connected with more side surfaces of the front longitudinal beam 1, so that the connection strength of the shock absorber 2 and the front longitudinal beam 1 is enhanced.

In some embodiments provided by the present application, referring to fig. 1, 2 and 3, the first connection structure 22 further includes an abutment surface 222 formed at an end of the tower body 21 facing the front side member 1, two connection portions 221 are respectively located at two sides of the abutment surface 222, the two connection portions 221 and the abutment surface 222 enclose a mounting space, and the abutment surface 222 is fixedly connected with the front side member 1.

Therefore, the shock absorber 2 can be fixedly connected with the three side faces of the front longitudinal beam 1, the connection strength and rigidity of the shock absorber 2 and the front longitudinal beam 1 are further enhanced, and the installation stability of the shock absorber 2 is improved.

It should be noted that, the abutment surface 222 may be fixedly connected to the front side member 1 by the fastening structure 6, and the fastening structure 6 may have various structures, which are not limited herein, and the abutment surface 222 may be fixedly connected to the front side member 1 by gluing, welding, or by fastening 61, for example. The fastening structures 6 may be used alone or in combination, and the abutment surface 222 and the front side member 1 may be bonded or welded and then connected by the fastener 61, for example. And a plurality of fasteners 61 may be provided to fixedly connect the connecting portion 221 and the abutment surface 222 with the front side member 1, the types of the plurality of fasteners 61 may be the same, may be different, or may be partially the same, the plurality of fasteners 61 may be provided in one or more rows that are uniformly arranged, and for example, a double row of fasteners 61 may be provided to fixedly connect the connecting portion 221 and the abutment surface 222 with the front side member 1, and the fasteners 61 of the two rows may be different or the same. The fastener 61 may be various and is not limited herein, and the fastener 61 may be a rivet, a screw, or a bolt, for example.

That is, the connecting portion 221 and the front side member 1 may be screwed using the FDS process. And the screws may be arranged in two rows symmetrically arranged at both sides of the connection part 221. The rivets may be used to connect the connecting portion 221 with the tower body 21 and the front side member 1 using an SPR process, and the rivets may be arranged in two rows symmetrically on both sides of the connecting portion 221.

In addition, the cross section of the front side member 1 may be of various shapes, without limitation, and the front side member 1 includes at least three faces, the shock absorber 2 may be fixedly connected to at least three sides of the front side member 1, and these three faces may be oriented in any direction, without limitation, and the cross section of the front side member 1 may be square, and the front side member 1 includes four sides, and the two connecting portions 221 may extend in a second direction B perpendicular to the first direction a, wherein the second direction B is a frame lateral extending direction, i.e., a direction toward a vehicle-side tire extending direction. The two connection portions 221 may be fixedly connected to the upper and lower side surfaces of the front side member 1, and the abutment surface 222 may be fixedly connected to the left and right side surfaces of the front side member 1, that is, the connection structure pattern may be C-shaped or inverted C-shaped.

In some embodiments of the present application, referring to fig. 2,3 and 4, the cross section of the front side member 1 is rectangular, the abutment surface 222 is fixedly connected to the upper surface of the front side member 1, and the two connection portions 221 are fixedly connected to two opposite side walls of the front side member 1, respectively. In this way, the abutting surface 222 can be abutted against the upper surface of the front longitudinal beam 1, so that the strength of the front longitudinal beam 1 for supporting the shock absorber 2 is higher, the IPI performance rigidity of the shock absorber mounting point 2111 is obviously improved, and the stress of the shock absorber 2 on the front longitudinal beam 1 is more uniform, thereby further improving the mounting stability of the shock absorber 2. One of the connection parts 221 is connected to the side facing the direction of the damper 7, so that the angle of the stress angle of the damper tower 2 is reduced, and the smaller angle is more beneficial to the support of the damper tower 2 to the damper 7.

Note that, the IPI performance stiffness analysis of the tower mount 2111 typically applies X, Y, Z excitation loads in three directions to each attachment point. In order to be able to perform calibration with the test, the actual condition of the test needs to be considered, and the loading mode is ensured to be consistent with the test. Through experiments, the shock absorber 2 is connected with two side surfaces and the upper surface of the front longitudinal beam 1, and the shock absorber 2 is only connected with the side surface of the front longitudinal beam 1, which is far away from the direction of the shock absorber 7, and the IPI performance rigidity of the shock absorber mounting point 2111 has obvious lifting effect, and can be lifted to 30000N.m/rad by the traditional structure 20000N.m/rad, and the lifting rate is about 50%.

Next, the closer the force path of the shock absorber 2 is to the force transmission path of the suspension system, the better the support of the shock absorber 7 by the shock absorber 2, and referring to fig. 4, F1 is the force transmission path of the suspension system, F2 is the force transmission path in which the shock absorber 2 is connected only to the side of the front side member 1 in the direction away from the shock absorber 7, F3 is the force transmission path in which the shock absorber 2 is connected to the three sides of the front side member 1, one of the connecting portions 221 is connected to the side face in the direction toward the shock absorber 7, θ is the force transmission angle of the shock absorber 2, the included angle of F2 and F1 is θ1, the included angle of F3 and F1 is θ2, and θ1 is greater than θ2, and the smaller force transmission angle of the shock absorber 2 is more advantageous for the support of the shock absorber 7 by the shock absorber 2.

In addition, the two connection parts 221 may be connected to the tower body 21 in various manners, and the connection parts 221 may be connected to the tower body 21 by welding, gluing, or fastening members 61, for example, without limitation.

In some embodiments of the present application, referring to fig. 1, 2 and 3, at least one of the two connection parts 221 is integrally formed with the tower body 21. So, connecting portion 221 and tower body 21 integrated into one piece can increase the rigidity of shock absorber 2, can make shock absorber 2 fix more fastening on front longitudinal beam 1, can further improve shock absorber 2's installation stability, and shock absorber 2 can be aluminum alloy die-casting, and connecting portion 221 and tower body 21 use aluminum alloy die-casting shaping together, have reduced the installation process, make the installation simpler and more swift.

In addition, in order to facilitate the replacement or repair of the shock absorber 2 or the front side member 1 during the repair of the vehicle, the connection portion 221 may be manufactured separately, and when the connection portion 221 is damaged, only the connection portion 221 may be replaced without replacing the entire shock absorber 2, thereby saving the repair cost. And the shape of the connection part 221 may be various, and there is no limitation herein, and the shape of the connection part 221 may be a sheet shape or a block shape, for example.

In some embodiments of the present application, referring to fig. 1,2 and 3, at least one of the two connection parts 221 is a connection piece 223, the connection piece 223 is manufactured separately from the tower body 21, and the connection piece 223 is fixedly connected with the tower body 21 through the fastening structure 6. Thus, when the shock absorber 2 or the front side member 1 needs to be maintained or replaced, only the connecting piece 223 can be replaced or maintained without replacing the whole shock absorber 2, thereby saving the maintenance cost.

Note that the shape of the connecting piece 223 may be the same as or different from the connecting portion 221, and the shape of the connecting piece 223 may be various, and there is no limitation in this regard, and the shape of the connecting piece 223 may be square, rectangular, irregular, or the like, and the height of the connecting piece 223 may be the same as the height of the side surface of the front side member 1, so that the connecting piece 223 has a larger connecting area with the front side member 1. Second, the material of the connection piece 223 may be various rigid materials, and is not limited thereto, and the material of the connection piece 223 may be a steel structure or an aluminum alloy material, for example.

Second, the connection piece 223 is fixedly connected to the tower body 21 through the fastening structure 6, and the fastening structure 6 may have various structures, which are not limited herein, and the connection piece 223 and the tower body 21 may be connected by gluing, welding, or by the fastening piece 61, for example. The fastening structures 6 may be used alone or in combination, and the connecting piece 223 and the tower 21 may be glued or welded and then connected by the fastener 61, for example. The fastening members 61 may be various, but not limited to, and a plurality of fastening members 61 may be fixedly coupled to the tower body 21, the plurality of fastening members 61 may be identical, different or partially identical, and the plurality of fastening members 61 may be arranged in one or more rows. The fastener 61 may be, for example, a rivet, screw or bolt 611.

Referring to fig. 1, 5 and 6, the edge of the connecting piece 223 may be provided with at least one fixing portion 2234 for mounting other vehicle components, and the other vehicle components may be fixed with the fixing portion 2234 by a clamping structure, for example. The fixing portion 2234 may be provided in plurality, the number of the fixing portion 2234 is not limited herein, and, for example, the fixing portion 2234 may be provided in two at one side edge.

In addition, the connecting piece 223 may be connected to the tower body 21 and the front side member 1 using the fastener 61, and holes may be provided in the connecting piece 223 to match the installation of the fastener 61.

In some embodiments provided by the present application, referring to fig. 1,4, 5, 6 and 7, the connection piece 223 is provided with a first connection hole 2231 and a second connection hole 2232, the front side member 1 is fixedly connected with the connection piece 223 through the first connection hole 2231, and the tower 21 is fixedly connected with the connection piece 223 through the second connection hole 2232. In this way, the fastening member 61 may be fixed to the first coupling hole 2231 to couple the coupling piece 223 to the tower body 21, and the fastening member 61 may be fixed to the second coupling hole 2232 to couple the coupling piece 223 to the front side member 1 to couple the tower body 21 to the front side member 1. The fastener 61 may be a bolt 611 or the like. Further, the connecting piece 223 may be fixedly connected to the front side member 1 and the tower body 21, respectively, by providing a plurality of fasteners 61.

In some embodiments provided by the present application, referring to fig. 5 and 6, the connection piece 223 is provided with a plurality of first and second connection holes 2231 and 2232, and the plurality of first and second connection holes 2231 and 2232 are disposed near an outer edge of the connection piece 223 and are circumferentially spaced apart along the outer edge near the connection piece 223. In this way, a plurality of fasteners 61 may be disposed on a plurality of first and second connection holes 2231 and 2232 of the connection piece 223, which increases the connection point of the connection piece 223 with the tower body 21 and the front side member 1, increases the connection strength of the connection piece 223 with the tower body 21 and the front side member 1, and the plurality of first and second connection holes 2231 and 2232 are circumferentially spaced along the outer edge near the connection piece 223, so that the stress of the connection piece 223 can be more uniform.

In addition, in order to support and protect the safety of passengers, the components of the vehicle are usually made of a material with high rigidity, for example, steel, but in this case, the weight of the components is also relatively high, and the load of the vehicle itself is high, which affects the performance of the vehicle.

In some embodiments provided by the present application, referring to fig. 6, the middle portion of the connection piece 223 is provided with a lightening hole 2233, and the lightening hole 2233 is offset from the first and second connection holes 2231 and 2232. Thus, the weight of the connecting piece 223 can be reduced, the load of the vehicle itself can be reduced, and the performance of the vehicle can be improved. The lightening holes 2233 are formed in the middle of the connecting sheet 223 to make the connecting sheet 223 stronger, and the connecting sheet 223 is less likely to be stressed to crack or break or even break.

It should be noted that the shape of the lightening holes 2233 may be various, and the shape of the lightening holes 2233 may be circular, triangular, square, rectangular, irregular, or the like, as examples.

In addition, if the middle of the connection piece 223 is provided with the lightening hole 2233, the strength of the connection piece 223 may be affected, and the connection piece 223 may be cracked or broken from the middle under pressure.

In some embodiments provided by the present application, referring to fig. 6, the hole edge of the lightening hole 2233 is provided with a flange 22331 along the inner circumference of the lightening hole 2233, the end of the flange 22331 extending in a radial direction toward the lightening hole 2233. In this way, the strength of the connecting piece 223 can be increased, preventing the connecting piece 223 from being cracked or broken from the middle by pressure. Note that, the flange 22331 is provided at the hole edge of one turn of the weight-reducing hole 2233, and the end of the flange 22331 is folded and bent radially toward the weight-reducing hole 2233.

In addition, in the case where the connecting points of the connecting portions 221 to the front side members 1 have a large span, a plurality of connecting pieces 223 may be provided so as to correspond to each other, and the front side members 1 may be more uniformly arranged in the upper direction along the first direction a to support the bottom of the shock absorber 2. In some embodiments provided in the present application, referring to fig. 1 and 2, the first connecting structure 22 includes at least two connecting pieces 223, and the at least two connecting pieces 223 are fixedly connected to the front side member 1 in an arrangement along the first direction a. In this way, the front side member 1 more uniformly supports both sides of the bottom of the shock absorber 2 in the first direction a. Wherein, two connection pieces 223 may be provided, and the two connection pieces 223 are disposed at corresponding positions of both side ends of the connection part 221 in the first direction and symmetrically distributed.

In addition, the shock absorber 2 can be supported by other parts of the vehicle, and other parts and the shock absorber 2 form a frame structure to supplement and provide a structural force transmission path of the shock absorber 2.

In some embodiments provided by the present application, referring to fig. 1 and 2, the shock absorbing assembly further includes a front frame connector 3, the front frame connector 3 extending in a second direction B, an end of the front frame connector 3 facing the front side rail 1 being connected to the connection piece 223 such that the front frame connector 3 is connected to the front side rail 1 and the shock absorbing tower 2, respectively, the second direction B being perpendicular to the first direction a. Thus, the front frame connector 3 provides a new connection point of the shock absorber 2, forms a frame structure with the shock absorber 2, and provides a structural force transmission path of the shock absorber 2 in a complementary manner.

The front frame connecting piece 3 is an integrated casting of a key connecting point around a pillar, a threshold and the like of the vehicle, and the front frame connecting piece 3 can be connected with a front cabin boundary beam, a front wall plate assembly and a front section of the front cabin boundary beam, so that the overall connecting rigidity of the front cabin can be further improved.

In addition, when the connecting pieces 223 are plural, the front frame connecting piece 3 may be connected to one or more of the connecting pieces 223. The front frame connecting member 3 of the connecting piece 223 may be connected to the connecting piece 223 in a variety of ways, but is not limited thereto, and may be, for example, welded, glued, fastened 61 connected or integrally formed. In some embodiments provided by the application, referring to fig. 1 and 2, the front frame connecting member 3 may be integrally formed with the connecting piece, and the front frame connecting member 3 may be directly and fixedly connected with the front side member 1 and the shock absorber 2 through the fastening structure 6, so that the connection rigidity of the front frame connecting member 3 with the front side member 1 and the shock absorber 2 is enhanced. It should be noted that the front frame connecting member 3 may include a connecting end 31, the connecting end 31 extending in the first direction, the connecting end 31 being fixedly connected to the front side member 1 and the shock absorber 2 by the fastening structure 6.

The fastening structure 6 herein may be of various structures, and the front frame attachment 3 may be fixedly attached to the front side rail 1 and the shock absorber tower 2, respectively, by gluing, welding or by fasteners 61, for example, without limitation. The various fastening structures 6 may be used alone or in combination, and the front frame connector 3 may be connected to the front side member 1 and the shock absorber tower 2 by means of fasteners 61 after being glued or welded, respectively, for example. And a plurality of fasteners 61 may be provided to fixedly connect the front frame connecting member 3 with the front side member 1 and the shock absorber 2, respectively, the types of the plurality of fasteners 61 may be the same, may be different or may be partially the same, the plurality of fasteners 61 may be provided in one or more rows uniformly arranged, and for example, double rows of fasteners 61 may be provided to fixedly connect the connecting portion 221 with the front side member 1, and the fasteners 61 of the two rows may be different or the same. The fastener 61 may be various herein, and the fastener 61 may be a rivet, a screw 613 or a bolt 611, for example, without limitation. If the fastener 61 is a screw 613, the front frame connector 3 may be screwed to the side rail 4 using an FDS process.

In some embodiments provided by the present application, referring to fig. 7 and 8, the shock absorbing assembly further includes an upper longitudinal beam 4, and the shock absorbing tower 2 includes a second connection structure 23 provided on the tower body 21, the second connection structure 23 being provided near the upper longitudinal beam 4, and the second connection structure 23 being connected to the upper longitudinal beam 4 through a fastening structure 6. So, can make upper longitudinal beam 4 and shock absorber 2 form frame construction, pass shock absorber 2 atress smoothly to both sides, and then weaken shock absorber 2's self atress, avoid shock absorber 2 to arouse the fracture damage because of the atress is too big.

It should be noted that, the upper longitudinal beam 4 includes a first end and a second end, the first end is connected with the front longitudinal beam 1, the second end extends along a direction away from the front longitudinal beam 1 relative to the first end and is connected with the front wall plate assembly, the main body of the shock absorber 2 is provided with a second connection structure 23 towards the upper longitudinal beam 4, the second connection structure 23 extends along a second direction B, and the upper longitudinal beam 4 is connected with the second connection structure 23 through a fixing structure for supporting the shock absorber 2. The shape of the second connecting structure 23 is matched with that of the upper longitudinal beam 4, and the upper side surface of the second connecting structure 23 is abutted against the lower side surface of the upper longitudinal beam 4, so that the second connecting structure 23 can be connected with the upper longitudinal beam 4 through the fastening structure 6.

The fastening structure 6 may be of various structures, and the second connection structure 23 and the upper side member 4 may be connected by, for example, bonding, welding, or by a fastener 61 without limitation thereto. The fastening structures 6 may be used alone or in combination, and the connecting piece 223 and the tower body 21 may be connected by using structural adhesive or welding and then using the fastening piece 61, for example. The fastening members 61 may be various, and the fastening members 61 may be fixedly coupled to the second coupling structure 23 and the upper side member 4, the various fastening members 61 may be identical, different or partially identical, and the fastening members 61 may be arranged in one or more rows. The fastener 61 may be, for example, a rivet 612, a screw 613, or a bolt. Wherein the screws 613 may be stream drill screws, i.e. the second connection structure 23 may be screwed with the upper longitudinal beam 4 using an FDS process. And, if rivets 612 are used, they may be blind rivets. And the rivet 612 may be used to connect the second connection structure 23 with the upper side rail 4 using an SPR process.

In order to carry the shock absorbers 7 on both sides of the front of the vehicle, the shock absorber towers 2 are generally symmetrically arranged on the frame of the vehicle as key parts of the vehicle, and are symmetrically arranged on the left and right sides of the vehicle. The reinforcing structure can be added between the shock towers 2 on two sides of the vehicle, so that the structural strength of the shock towers 2 on two sides is improved.

In some embodiments provided by the present application, referring to fig. 7 and 8, the shock absorbing assembly further includes a cross member 5, the cross member 5 extending in the second direction B, and an end of the cross member 5 being connected to the tower 21 by a fastening structure 6.

So, crossbeam 5 can be connected with two shock absorber towers 2 of vehicle front side, can make the structural strength of both sides shock absorber tower 2 promote, forms frame construction between the shock absorber tower 2 about making, can improve the joint strength between the two, promotes the IPI rigidity in the second direction B of shock absorber tower 2 mounting point to can improve the installation stability of both sides shock absorber tower 2. The stability and balance of the vehicle in the running process of a curve are improved, the two shock absorbers 7 are connected, the connecting forces distributed on the cross beam 5 and the shock absorption towers 2 at the two sides can be balanced, so that the stress at the two sides is kept consistent, the vehicle body is kept stable when the vehicle makes a sharp turn or avoids in the running process of a high speed, the vehicle is not inclined or even overturned, and the running safety is improved.

The fastening structure 6 may be of various structures, but is not limited thereto, and the tower 21 and the cross member 5 may be coupled by gluing, welding or by fasteners 61, for example. The fastening structures 6 may be used alone or in combination, and for example, the tower body 21 and the cross beam 5 may be connected by using structural adhesive or welding and then using the fastening members 61. The fastening members 61 may be various, but not limited to, a plurality of fastening members 61 may be fixedly connected to the tower body 21 and the cross beam 5, the plurality of fastening members 61 may be identical, different or partially identical, and the plurality of fastening members 61 may be arranged in one or more rows. For example, two rows of fasteners 61 may be provided to fixedly connect the tower 21 to the cross beam 5, and the two rows of fasteners 61 may be different or identical. The fastener 61 may be, for example, a rivet, screw or bolt 611.

The foregoing is merely an embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions should be covered in the protection scope of the present application.

Claims (10)

1. A shock absorbing assembly, comprising:

a front rail (1), the front rail (1) extending in a first direction (a) for constituting a load-carrying frame of a vehicle;

a damping tower (2), wherein the damping tower (2) comprises a tower body (21) and a first connecting structure (22) arranged on the tower body (21), and the tower body (21) is provided with a containing cavity; the first connecting structure (22) is arranged close to the front longitudinal beam (1), and is provided with at least two connecting parts (221) which are arranged in parallel and opposite to each other, an installation space is formed between the two connecting parts (221), the front longitudinal beam (1) is positioned in the installation space, and the two connecting parts (221) are respectively connected to two opposite sides of the front longitudinal beam (1).

2. The shock absorbing assembly according to claim 1, wherein the first connecting structure (22) further comprises an abutting surface (222) formed by the tower body (21) towards the end portion of the front longitudinal beam (1), two connecting portions (221) are respectively located at two sides of the abutting surface (222), the two connecting portions (221) and the abutting surface (222) enclose the installation space, and the abutting surface (222) is fixedly connected with the front longitudinal beam (1).

3. The shock absorbing assembly according to claim 2, wherein the cross section of the front side member (1) is rectangular, the abutment surface (222) is fixedly connected to the upper surface of the front side member (1), and two of the connecting portions (221) are fixedly connected to two side walls of the front side member (1) opposite to each other.

4. A shock absorbing assembly according to claim 1, wherein at least one of the two connecting portions (221) is integrally formed with the tower (21).

5. Damping assembly according to claim 1, characterized in that at least one of the two connection parts (221) is a connection piece (223), the connection piece (223) being manufactured separately from the tower body (21), the connection piece (223) being fixedly connected with the tower body (21) by means of a fastening structure (6).

6. The shock absorbing assembly according to claim 5, wherein the connecting piece (223) is provided with a first connecting hole (2231) and a second connecting hole (2232), the front longitudinal beam (1) is fixedly connected with the connecting piece (223) through the first connecting hole (2231), and the tower body (21) is fixedly connected with the connecting piece (223) through the second connecting hole (2232).

7. The shock absorbing assembly as claimed in claim 6, wherein the connecting piece (223) is provided with a plurality of the first and second connecting holes (2231, 2232), and the plurality of the first and second connecting holes (2231, 2232) are disposed near an outer edge of the connecting piece (223) and circumferentially spaced apart near the outer edge of the connecting piece (223).

8. The shock assembly as claimed in claim 7, wherein a lightening hole (2233) is provided in the middle of the connecting piece (223), and the lightening hole (2233) is staggered from the first connecting hole (2231) and the second connecting hole (2232).

9. The shock assembly as claimed in claim 5, comprising a front frame connection (3), the front frame connection (3) extending in a second direction (B), the end of the front frame connection (3) facing the front longitudinal beam (1) being connected with the connecting piece (223) such that the front frame connection (3) is connected with the front longitudinal beam (1) and the shock tower (2), respectively, the second direction (B) being perpendicular to the first direction (a).

10. A vehicle, characterized by comprising:

A frame;

the shock assembly as claimed in any one of claims 1 to 9, said front side member (1) being provided on said frame, said shock absorber (7) being mounted on said shock absorber tower (2).