CN220923800U - Range extender mounting structure - Google Patents

Abstract

The utility model discloses a range extender mounting structure, which comprises a vehicle body left longitudinal beam and a left suspension assembly used for connecting the range extender with the vehicle body left longitudinal beam, wherein the left suspension assembly comprises a vehicle body connecting bracket, a suspension cushion and a bracket arm; the suspension cushion is arranged in the suspension cushion installation cavity of the inward opening of the vehicle body connecting bracket, so that the distance between the left suspension elastic center and the right suspension elastic center can be effectively shortened, and the decoupling capacity of the suspension system is improved; meanwhile, the length of the bracket arm can be effectively shortened, and the structural strength is ensured; and further, the stable and reliable installation of the range extender on the whole vehicle is effectively ensured, and the use requirement of the stable installation of the range extender on the whole vehicle is met.

Description

Range extender mounting structure

Technical Field

The utility model belongs to the field of automobile structural design, and particularly relates to a range extender mounting structure.

Background

The range extender is added on the electric vehicle platform, so that the advantages of the fuel vehicle and the electric vehicle are taken into account, and the problem of insufficient endurance mileage of the pure electric vehicle can be solved. The existing range-extending type vehicle type is basically reformed based on the traditional fuel oil vehicle, and most of structures and parts adopt the scheme of the fuel oil vehicle. The gearbox of traditional fuel car power assembly passes through left suspension subassembly and connects on the left longeron of body structure, and wherein, left suspension all falls on the left longeron of car, then is connected with the gearbox through the bracket. However, as the generator of the range extender replaces a gearbox, the Y-direction size of the generator is much smaller than that of the gearbox, the distance between the left longitudinal beam of the automobile and the generator is long, so that the bracket is too long, the structural strength is low, and the generator is easy to break under the limit working condition; the left suspension is designed above the longitudinal beam, so that the included angle between the left suspension elastic center and the right suspension elastic center and the torque shaft of the range extender is too large, and the decoupling capacity of the suspension system is poor; the structure of traditional left suspension subassembly and corresponding arrangement mounting structure can't satisfy the user demand that increases journey ware stable installation on whole car.

Therefore, there is a need for improved design of the self structure of the left suspension assembly and the arrangement and installation structure on the whole vehicle in the existing range extender installation structure so as to ensure stable installation of the range extender on the whole vehicle.

Disclosure of utility model

Therefore, the utility model aims to provide a range extender installation structure, which can ensure the use requirement of stable installation of the range extender on the whole vehicle through the improved design of the related structure of the left suspension component.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a range extender mounting structure, includes automobile body left side longeron and is used for the left suspension subassembly of being connected range extender and automobile body left side longeron, left side suspension subassembly includes automobile body linking bridge, suspension cushion and trailing arm, automobile body linking bridge fixed connection is equipped with inwards open-ended suspension cushion installation cavity on the medial surface of automobile body left side longeron, suspension cushion fixed mounting is in suspension cushion installation cavity, the one end and the suspension cushion fixed connection of trailing arm, the other end and the generator fixed connection of range extender of trailing arm.

Further, the vehicle body connecting bracket is provided with a first connecting part which is used for being connected with the inner side surface of the left longitudinal beam of the vehicle body in a conformal way, and the top of the first connecting part extends to the outer side of the transverse direction of the vehicle body to form a second connecting part which is used for being connected with the upper surface of the left longitudinal beam of the vehicle body in a conformal way.

Further, two suspension side mounting holes are formed in the first connecting portion at intervals along the length direction of the left longitudinal beam of the automobile body, two suspension upper mounting holes are formed in the second connecting portion at intervals along the length direction of the left longitudinal beam of the automobile body, and the two suspension side mounting holes and the two suspension upper mounting holes are arranged in a trapezoid structure on the inner side face of the left longitudinal beam of the automobile body.

Further, the car body connecting bracket is an integrally formed aluminum alloy framework.

Further, the suspension cushion is including being fixed in the base of the vertical bottom of suspension cushion installation cavity and being fixed in the rubber main spring on the base, the upper portion of rubber main spring is unsettled to set up for the inner wall in cushion installation cavity, the corresponding end fixed connection of bracket is in the upper portion of rubber main spring.

Further, the upper part of the rubber main spring is respectively and correspondingly outwards protruded and extended to form a buffer bag I along the front and rear sides of the vehicle body; the top of the rubber main spring protrudes upwards and extends to form a buffer bag II; the outer part of the rubber main spring is outwards protruded and extended to form a buffer bag III.

Further, a lower buffer cavity is formed between the bottom of the rubber main spring and the base, and a buffer bag IV extending upwards in a protruding mode is formed at the vertical bottom of the lower buffer cavity.

Further, a plurality of spherical protruding points are respectively arranged on the outer surfaces of the buffer packet I, the buffer packet II, the buffer packet III and the buffer packet IV.

Further, the bottom surface of the suspended cushion mounting cavity is in a stepped structure.

Further, the bracket arm is provided with a Z-shaped structure, one end of the bracket arm is connected with the rubber main spring in a rubber-coated vulcanization manner, and the other end of the bracket arm is provided with three motor connecting holes which are arranged in a triangle.

Compared with the prior art, the utility model has the following beneficial effects:

According to the range extender mounting structure provided by the utility model, the vehicle body connecting bracket is fixedly connected to the inner side surface of the left longitudinal beam of the vehicle body, and the suspension cushion is mounted in the suspension cushion mounting cavity with the inward opening of the vehicle body connecting bracket, so that the distance between the left suspension elastic center and the right suspension elastic center can be effectively shortened, and the decoupling capacity of the suspension system is improved; meanwhile, the length of the bracket arm can be effectively shortened, and the structural strength is ensured; meanwhile, the suspension cushion mounting cavity formed on the vehicle body connecting bracket can effectively complete the limit of the suspension cushion in all directions, and the structural reliability is ensured; and further, the stable and reliable installation of the range extender on the whole vehicle is effectively ensured, and the use requirement of the stable installation of the range extender on the whole vehicle is met.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

FIG. 1 is a schematic view of the whole structure of the present utility model

FIG. 2 is a schematic axial side view of a left suspension assembly

FIG. 3 is a schematic view of an axle side structure of a vehicle body connecting bracket

FIG. 4 is a schematic axial side view of a suspended cushion

FIG. 5 is a schematic view of an axial side structure of another view of the suspended cushion

Reference numerals: 1-a range extender; 2-a left longitudinal beam of the vehicle body; 3-left suspension assembly; 301-a vehicle body connection bracket; 301 a-a suspended cushion mounting cavity; 301 b-a first connection; 301 b-1-suspension side mounting holes; 301 c-a second connection; 301 c-1-mounting holes on the suspension side; 301 a-1-step structure; 302-suspending the cushion; 302 a-a base; 302 a-1-strip-shaped anti-drop table; 302 a-2-anti-slip serrations; 302 b-a rubber main spring; 302b-1 buffer packet I; 302b-2 buffering packet ii; 302b-3 buffer packet iii; 302b-4 buffer packet iv; 302 c-a lower buffer chamber; 302 d-a boss; 303-bracket arm.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the illustrations provided in the following embodiments are merely for explaining the basic idea of the present utility model, and the following embodiments and features in the embodiments may be combined with each other without conflict.

Referring to fig. 1-5, a range extender mounting structure comprises a left side member 2 of a vehicle body and a left suspension assembly 3 for connecting the range extender 1 with the left side member 2 of the vehicle body, wherein the left suspension assembly comprises a vehicle body connecting bracket 301, a suspension cushion 302 and a bracket arm 303, the vehicle body connecting bracket 301 is fixedly connected with the inner side surface of the left side member 2 of the vehicle body and is provided with a suspension cushion mounting cavity 301a with an inward opening, the vehicle body connecting bracket 301 and the left side member 2 of the vehicle body can be fixedly connected in various manners such as welding, bolting and the like, preferably in a screw connection, wherein the inward opening points to the inner side of the transverse direction (Y direction) of the vehicle body, and the lateral outer side of the suspension cushion mounting cavity 301a is preferably sealed and arranged, so that an effective Y-direction limiting effect can be achieved; the suspension cushion 302 is fixedly mounted in the suspension cushion mounting cavity 301a, which can allow various fixing mounting modes, such as interference fit, extrusion, embedding, screwing and the like, the suspension cushion 302 can be an integrally formed rubber block and the like, and one end of the bracket 303 is fixedly connected with the suspension cushion 302, such as interference fit, vulcanization wrapping and the like; the other end of the bracket 303 is fixedly connected with the generator of the range extender 1, and can be generally connected with a motor mounting bracket on the generator through bolts;

Of course, the installation of the range extender on the whole vehicle further comprises a right longitudinal beam of the vehicle body, a right suspension component used for connecting the range extender 1 with the right longitudinal beam of the vehicle body and the like, and the installation arrangement structures of the range extender and the right suspension component are consistent with those of the engine of the traditional vehicle type, so that the improvement of the design is not required, and the repeated description is omitted;

In the structural design, the distance between the left suspension elastic center and the right suspension elastic center can be effectively shortened by fixedly connecting the vehicle body connecting bracket 301 on the inner side surface of the left longitudinal beam of the vehicle body and installing the suspension cushion 302 in the suspension cushion installation cavity 301a of the inward opening of the vehicle body connecting bracket 301, so that the decoupling capacity of the suspension system is improved; meanwhile, the length of the bracket arm 303 can be effectively shortened, and the structural strength is ensured; meanwhile, the suspension cushion mounting cavity 301a formed on the vehicle body connecting bracket 301 can effectively complete the limit of the suspension cushion 302 in all directions, so that the structural reliability is ensured; and further, the stable and reliable installation of the range extender on the whole vehicle is effectively ensured, and the use requirement of the stable installation of the range extender on the whole vehicle is met.

In this embodiment, the vehicle body connecting bracket 301 has a first connecting portion 301b for being connected with the inner side surface of the vehicle body left side member 2 in a conformal manner, specifically, the inner side surface of the vehicle body left side member 2 is generally planar, where the first connecting portion 301b is preferably configured as a plate-shaped structure, and can be better attached to the inner side surface of the vehicle body left side member 2, the top of the first connecting portion 301b extends to the lateral outer side of the vehicle body to form a second connecting portion 301c for being connected with the upper surface of the vehicle body left side member 2 in a conformal manner, specifically, the second connecting portion 301c is two groups of protruding plates protruding outwards, and can be better attached to the upper side surface of the vehicle body left side member 2, the connecting strength of the vehicle body connecting bracket 301 and the vehicle body left side member 2 can be effectively improved, the fracture at the connecting portion can be prevented, the maintenance cost can be reduced, the vehicle body left side member 2 can be utilized to enhance the limiting capability of the vehicle body connecting bracket 301 for limiting downward and outwards, and the limiting capability of left suspension under special working conditions such as cornering can be improved.

In this embodiment, two suspension side mounting holes 301b-1 are arranged on the first connection portion 301b at intervals along the length direction of the left longitudinal beam 2 of the vehicle body, two suspension upper mounting holes 301c-1 are arranged on the second connection portion 301c at intervals along the length direction of the left longitudinal beam 301c of the vehicle body, the two suspension side mounting holes 301b-1 and the two suspension upper mounting holes 301c-1 are arranged in a trapezoid structure on the inner side surface of the left longitudinal beam 2 of the vehicle body, the structure is simple in design structure, the assembly with the left longitudinal beam 2 of the vehicle body can be completed through designing the mounting holes, the assemblability is strong, the assembly time can be effectively shortened, the production efficiency of the whole vehicle is improved, and the arrangement and cost requirements are met; meanwhile, the positions of the suspension mounting points are distributed reasonably, the dynamic stiffness of the suspension mounting points is high, and the vibration isolation performance of the suspension is greatly improved;

In addition, in order to improve the assembly performance, one of the suspension side mounting holes 301b-1 is designed as a waist-shaped hole, so that the suspension side mounting hole has a certain fault tolerance, the phenomenon that the assembly is difficult due to poor neutrality of the on-line hole is avoided, and the production efficiency is improved.

In this embodiment, the body connecting bracket 301 is an integrally formed aluminum alloy framework, in use, slotting and reinforcing rib design can be performed at a proper place, and if the reinforcing rib is designed at the back of the transition joint of the second connecting portion 301c and the first connecting portion 301b, the vehicle body connecting bracket has better modal performance compared with the traditional fuel vehicle sheet metal framework design, can effectively avoid the resonance risk of the whole vehicle, and improves the NVH performance of the whole vehicle. Meanwhile, the aluminum alloy integrated design can remarkably improve the manufacturing precision of the size of each mounting suspension hole. The structure is made of aluminum alloy, so that the weight of the whole vehicle is lighter, and the light weight performance of the whole vehicle is better; meanwhile, the arrangement is more compact, the arrangement space is saved, and the overall arrangement and the attractive appearance of cabin parts are facilitated.

In this embodiment, the suspension cushion 302 includes a base 302a fixed to the vertical bottom of the suspension cushion mounting cavity 301a and a rubber main spring 302b fixed to the base 302a, where the rubber main spring 302b plays a role in damping and buffering, and is generally rubber blocks with various shapes, and the rubber main spring 302b is rubber-covered with the base 302a, and the base 302a is generally a plastic base, and the base 302a is fixed to the bottom of the suspension cushion mounting cavity 301a in a manner of interference fit, so that the vulcanization processing of the suspension cushion 302 and the assembly with the suspension cushion mounting cavity 301a can be facilitated, and of course, in other embodiments, the rubber main spring 302b and the base 302a may be an integral structure; the upper part of the rubber main spring 302b is suspended relative to the inner wall of the cushion mounting cavity 301a, the corresponding end of the supporting arm 303 is fixedly connected to the upper part of the rubber main spring 302b, the suspended arrangement refers to the upper side of the upper part of the rubber main spring 302b, gaps exist between the front side and the rear side of the vehicle body and the inner wall of the lateral outer side of the vehicle body and the corresponding side of the suspended cushion mounting cavity 301a, so that the effective buffer deformation of the connecting position of the supporting arm 303 and the body connecting bracket 301 in all directions is effectively ensured, and the vibration reduction effect is good;

In addition, in order to ensure stable connection between the base 302a and the vertical bottom of the cushion mounting cavity 301a, the anti-drop performance is improved, an anti-drop saw tooth 302a-2 structure and a strip anti-drop table 302a-1 structure are designed at the connection part between the base 302 and the suspension cushion mounting cavity 301a, and a weight reducing hole is designed at the bottom of the base 302a for weight reduction.

In this embodiment, the upper portion of the rubber main spring 302b extends to form a buffer bag i 302b-1 along the front-rear direction of the vehicle body, and is specifically a set of strip-shaped protruding bags arranged transversely; the top of the rubber main spring protrudes upwards to extend to form a buffer bag II 302b-2, and specifically two groups of strip-shaped protruding bags which are arranged at intervals and transversely are arranged; the outer part of the rubber main spring is outwards protruded and extended to form a buffer bag III 302b-3, and particularly three groups of strip-shaped protruded bags which are arranged at intervals and vertically are arranged; by designing the buffer bags on each side surface of the upper part of the rubber main spring, the gap between the rubber main spring and the suspension cushion mounting cavity 301a can be controlled by controlling the size of the buffer bags, the movement of the engine can be controlled in a reasonable direction, and the stable output torque of the engine is ensured; the structure can also be used for limiting the range extender, and the structure effectively buffers the inertial impact of the engine by the contact extrusion of the buffer bag and the rubber main spring body, so that the range extender is prevented from generating large displacement due to large inertial impact under the limiting working condition, and the excessive displacement of the range extender can cause the collision with peripheral parts, thereby damaging the parts of the whole vehicle.

In this embodiment, a lower buffer cavity 302c is formed between the bottom of the rubber main spring 302b and the base 302a, where the lower buffer cavity 302c is designed to extend through the vehicle body transversely, and a buffer packet iv 302b-4 extending in an upward protruding manner is formed at the vertical bottom of the lower buffer cavity 302c, where the buffer packet iv 302b-4 is a strip-shaped protrusion arranged transversely; by designing the lower buffer cavity 302c and the buffer package IV 302b-4, the vertical buffer and limiting capacity of the suspended cushion 302 can be effectively improved, and the reliability is improved.

In this embodiment, the outer surfaces of the buffer packets i 302b-1, ii 302b-2, iii 302b-3, iv 302b-4 are respectively provided with a plurality of spherical protruding points 302d, and the protruding points 302d are preferably arranged in an array; all design has little arch on each buffering package in this structural design, and the purpose changes the face contact into the multipoint contact, reduces the abnormal sound risk when contacting, has effectively improved whole car NVH performance, improves driving travelling comfort.

In this embodiment, the bottom surface of the cushion mounting cavity 301a is in a stepped structure 301a-1, here, the bottom surface on the lateral outside of the vehicle body; specifically, the upper part of the suspension cushion mounting cavity 301a is arranged in a protruding way outwards to form a gap with the upper part of the rubber main spring 302b, and the lower part can be abutted with the outer side of the base 302, so that the limit capacity of the suspension Y direction is enhanced; meanwhile, the step-shaped structure 301a-1 can improve the integral rigidity of the vehicle body connecting bracket framework.

In this embodiment, the bracket 303 has a zigzag structure, which not only increases the rigidity of the bracket, but also skillfully solves the height difference between the range extender and the mounting point of the vehicle body; one end of the rubber main spring 302b is connected with rubber coating type vulcanization, so that the inner bushing is completely covered by rubber vulcanization, and the outer surface of the conventional bushing is vulcanized with rubber, compared with the traditional structure, the rubber coating structure is difficult to remain aluminum scraps, so that the rubber performance is prevented from being damaged due to the aluminum scraps, the abnormal sound caused by excessive aluminum scraps is also prevented, and the NVH performance of the whole automobile is effectively improved; the other end is provided with three motor connecting holes 303a which are arranged in a triangle, and the connection is completed through bolts, so that the connection of the three motor connecting holes 303a which are arranged in a triangle is more stable and reliable compared with a two-point connection mode.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (10)

1. The utility model provides a range extender mounting structure which characterized in that: including automobile body left side longeron (2) and be used for being connected the left suspension subassembly (3) of journey ware (1) with automobile body left side longeron (2), left side suspension subassembly includes automobile body linking bridge (301), suspension cushion (302) and trailing arm (303), automobile body linking bridge (301) fixed connection is on the medial surface of automobile body left side longeron (2) and is equipped with inwards open-ended suspension cushion installation cavity (301 a), suspension cushion (302) fixed mounting is in suspension cushion installation cavity (301 a), the one end and the suspension cushion (302) fixed connection of trailing arm (303), the other end and the generator fixed connection of journey ware (1) of trailing arm (303).

2. The range extender mounting configuration of claim 1, wherein: the vehicle body connecting bracket (301) is provided with a first connecting part (301 b) for being connected with the inner side surface of the left vehicle body longitudinal beam (2) in a conformal mode, and a second connecting part (301 c) for being connected with the upper surface of the left vehicle body longitudinal beam (2) in a conformal mode is formed on the top of the first connecting part (301 b) in an extending mode towards the outer side of the transverse direction of the vehicle body.

3. The range extender mounting configuration of claim 2, wherein: two suspension side mounting holes (301 b-1) are formed in the first connecting portion (301 b) at intervals along the length direction of the vehicle body left longitudinal beam (2), two suspension upper mounting holes (301 c-1) are formed in the second connecting portion (301 c) at intervals along the length direction of the vehicle body left longitudinal beam (2), and the two suspension side mounting holes (301 b-1) and the two suspension upper mounting holes (301 c-1) are arranged in a trapezoid structure on the inner side face of the vehicle body left longitudinal beam (2).

4. The range extender mounting configuration of claim 2, wherein: the automobile body connecting support (301) is an integrally formed aluminum alloy framework.

5. The range extender mounting configuration of claim 1, wherein: the suspension cushion (302) comprises a base (302 a) fixed at the vertical bottom of the suspension cushion mounting cavity (301 a) and a rubber main spring (302 b) fixed on the base (302 a), wherein the upper portion of the rubber main spring (302 b) is arranged in a suspending mode relative to the inner wall of the suspension cushion mounting cavity (301 a), and the corresponding end of the supporting arm (303) is fixedly connected to the upper portion of the rubber main spring (302 b).

6. The range extender mounting configuration of claim 5, wherein: the upper part of the rubber main spring (302 b) is respectively and correspondingly outwards protruded and extended to form a buffer bag I (302 b-1) along the two sides of the front-back direction of the vehicle body;

The top of the rubber main spring protrudes upwards to extend to form a buffer bag II (302 b-2);

The outer part of the rubber main spring is outwards protruded and extended to form a buffer bag III (302 b-3).

7. The range extender mounting configuration of claim 6, wherein: a lower buffer cavity (302 c) is formed between the bottom of the rubber main spring (302 b) and the base (302 a), and a buffer bag IV (302 b-4) extending in an upward protruding mode is formed at the vertical bottom of the lower buffer cavity (302 c).

8. The range extender mounting configuration of claim 7, wherein: a plurality of spherical protruding points (302 d) are respectively arranged on the outer surfaces of the buffer packet I (302 b-1), the buffer packet II (302 b-2), the buffer packet III (302 b-3) and the buffer packet IV (302 b-4).

9. The range extender mounting configuration of claim 5, wherein: the bottom surface of the suspended cushion mounting cavity (301 a) is in a stepped structure (301 a-1).

10. The range extender mounting configuration of claim 5, wherein: the bracket arm (303) is provided with a Z-shaped structure, one end of the bracket arm is connected with the rubber main spring (302 b) in a rubber-covered vulcanization manner, and the other end of the bracket arm is provided with three motor connecting holes (303 a) which are arranged in a triangle manner.