Range extender mounting structure

Abstract

The utility model discloses a range extender installation structure which comprises a frame and a suspension assembly used for connecting a range extender with the frame, and the range extender is provided with an engine and a generator which are longitudinally arranged on the frame. The suspension assembly comprises a first suspension and a second suspension which are respectively arranged on two transverse sides of the engine and are connected with the engine, and a third suspension which is connected to the generator and is longitudinally arranged; a first support, a second support and a third support which correspond to the first suspension, the second suspension and the third suspension and extend towards the inner side of the frame are arranged on the frame, the first suspension is fixedly connected with the first support, the second suspension is fixedly connected with the second support, and the third suspension is fixedly connected with the third support. The range extender mounting structure can ensure that the longitudinal rear-drive range extender is stably mounted on the frame and has good decoupling performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile structure design, and in particular relates to a range extender installation structure. Background Art

[0002] In the past, for commercial vehicles with longitudinal rear-wheel drive powertrains, their suspension systems generally adopted a three-point center of mass arrangement, in which the left and right suspensions were installed on the engine block, the rear suspension was installed on the transmission, and the powertrain was installed on the frame through the suspension system. However, since the generator of the range extender replaces the gearbox in the traditional powertrain, the Y-direction (longitudinal dimension of the vehicle) size of the generator is much smaller than the gearbox, and the suspension system structure of the traditional engine is not suitable for the installation of the range extender on the frame. The installation of the range extender needs to meet high strength to avoid fracture under extreme working conditions, causing the engine to fall and the vehicle to lose power and cause an accident; it also needs to have high stiffness and high modality to avoid structural resonance caused by engine excitation and transmitted to the cab, causing customer complaints. Therefore, in order to ensure the stable installation of the longitudinal rear-wheel drive range extender on the frame and have good decoupling performance, it is necessary to develop and design a range extender installation structure. Utility Model Content

[0003] In view of this, an object of the utility model is to provide a range extender installation structure, which can ensure stable installation of a longitudinal rear-wheel drive range extender on a vehicle frame and has good decoupling performance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a range extender installation structure, comprising a frame and a suspension assembly for connecting the range extender to the frame, the range extender having an engine and a generator longitudinally arranged on the frame; the suspension assembly comprises a first suspension and a second suspension which are arranged on both sides of the engine and connected to the engine, and a third suspension which is connected to the generator and arranged longitudinally; the frame is provided with a first bracket, a second bracket and a third bracket which are arranged corresponding to the first suspension, the second suspension and the third suspension and are respectively extended to the inner side of the frame, the first suspension is fixedly connected to the first bracket, the second suspension is fixedly connected to the second bracket, and the third suspension is fixedly connected to the third bracket.

[0005] Furthermore, the frame includes a first longitudinal beam and a second longitudinal beam, the first bracket includes a first connecting plate fixedly connected to the first longitudinal beam, the second bracket includes a second connecting plate fixedly connected to the second longitudinal beam, and the first connecting plate and the second connecting plate are arranged in a V-shaped structure.

[0006] Furthermore, the first bracket also includes a first "X"-shaped reinforcement plate fixedly connected to the back side of the first connecting plate, and the second bracket also includes a second "X"-shaped reinforcement plate fixedly connected to the back side of the second connecting plate.

[0007] Furthermore, a first bending portion is provided on the upper portion of the first connecting plate, and the first bending portion is fixedly attached to the bottom surface of the first longitudinal beam; a second bending portion is provided on the upper portion of the second connecting plate, and the second bending portion is fixedly attached to the bottom surface of the second longitudinal beam.

[0008] Furthermore, a first L-shaped reinforcement plate is fixedly connected to the outer side surface of the first longitudinal beam, and the first L-shaped reinforcement plate is fixedly connected to the first bending portion; a second L-shaped reinforcement plate is fixedly connected to the outer side surface of the second longitudinal beam, and the second L-shaped reinforcement plate is fixedly connected to the second bending portion.

[0009] Furthermore, the third suspension includes a support arm and a suspension cushion assembly fixedly connected to the end of the support arm, the support arm is fixedly connected to the top of the generator shell, and the suspension cushion assembly is connected to the third bracket.

[0010] Furthermore, the third bracket includes two third connecting plates which are opposite and arranged longitudinally, and the suspension cushion assembly is installed between the two third connecting plates in a limited manner.

[0011] Furthermore, the third bracket also includes an L-shaped connecting plate that is fitted and fixed to the crossbeam of the frame, and two third connecting plates are fixedly connected to the L-shaped connecting plate.

[0012] Furthermore, the connection point between the first suspension and the first bracket, the connection point between the second suspension and the second bracket, and the connection point between the third suspension and the third bracket are arranged in an isosceles triangle or a nearly isosceles triangle.

[0013] Furthermore, a reinforcing crossbeam is provided between the first bracket and the second bracket, with two ends thereof being fixedly connected to the first bracket and the second bracket respectively.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the range extender installation structure provided by the utility model, the range extender adopts a three-point suspension structure to complete the connection with the frame. By arranging the first bracket, the second bracket and the third bracket extending to the inner side of the frame on the frame, the distance between the elastic center of the corresponding first suspension, the second suspension and the third suspension and the range extender body can be effectively shortened, which is conducive to ensuring that the suspension system has good decoupling performance; at the same time, the length of the corresponding first suspension, the second suspension and the third suspension body can be effectively shortened, which can ensure that the first suspension, the second suspension and the third suspension have good structural strength, which is conducive to ensuring the installation stability of the range extender; of course, the three-point suspension installation structure has a simple structure and is convenient to arrange, which is conducive to adapting to the connection between the longitudinal range extender and the frame.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view of the overall structure of the utility model

[0018] Figure 2 The left side schematic diagram of the overall structure of the utility model

[0019] Figure 3 This is a schematic diagram of the overall structure of the utility model

[0020] Figure numerals: 1-frame; 101-first longitudinal beam; 101a-first L-shaped reinforcement plate; 102-second longitudinal beam; 102a-second L-shaped reinforcement plate; 103-cross beam; 2-range extender; 201-engine; 202-generator; 3-first suspension; 4-second suspension; 5-third suspension; 501-support arm; 502-suspension cushion assembly; 6-first bracket; 601-first connecting plate; 601a-first bending portion; 602-first "X"-shaped reinforcement plate; 7-second bracket; 701-second connecting plate; 701a-second bending portion; 702-second "X"-shaped reinforcement plate; 8-third bracket; 801-third connecting plate; 802-L-shaped connecting plate; 9-reinforced cross beam. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0022] See also Figure 1-3In this embodiment, a range extender installation structure is disclosed, including a frame 1 and a suspension assembly for connecting the range extender 2 to the frame 1, wherein the range extender 2 has an engine 201 and a generator 202 arranged longitudinally on the frame 1. It can be understood that the "longitudinal" here means that the length direction of the frame 1 is longitudinal, that is, the front-rear direction of the vehicle, which is consistent with the traditional longitudinal arrangement of the powertrain, and will not be repeated here; the suspension assembly includes a first suspension 3 and a second suspension 4 which are arranged on both sides of the engine 201 and connected to the engine 201, and a third suspension 3 connected to the generator 202 and arranged longitudinally. The suspension 5, the lateral direction here is the width direction of the frame 1; the frame 1 is provided with a first bracket 6, a second bracket 7 and a third bracket 8 which are arranged corresponding to the first suspension 3, the second suspension 4 and the third suspension 5 and are respectively extended to the inner side of the frame 1, the first suspension 3 is fixedly connected to the first bracket 6, the second suspension 4 is fixedly connected to the second bracket 7, and the third suspension 5 is fixedly connected to the third bracket 8; it can be understood that the first suspension 3, the second suspension 4 and the third suspension 5 are usually composed of an active side bracket and a suspension cushion, which is consistent with the traditional suspension structure and will not be repeated here;

[0023] In the above structural design, the range extender 2 adopts a three-point suspension structure to complete the connection with the frame 1. By arranging the first bracket 6, the second bracket 7 and the third bracket 8 extending to the inner side of the frame on the frame 1, the distance between the elastic center of the corresponding first suspension 3, the second suspension 4 and the third suspension 5 and the body of the range extender 2 can be effectively shortened, which is conducive to ensuring that the suspension system has good decoupling performance; at the same time, the length of the corresponding first suspension 3, the second suspension 4 and the third suspension 5 body can be effectively shortened, which can ensure that the first suspension 3, the second suspension 4 and the third suspension 5 have good structural strength, which is conducive to ensuring the installation stability of the range extender; of course, the three-point suspension installation structure has a simple structure and is easy to arrange, which is conducive to adapting to the connection between the longitudinal range extender and the frame; and the three-point suspension installation structure has a small number of suspensions, which is conducive to cost saving.

[0024] In this embodiment, the frame 1 has a first longitudinal beam 101 and a second longitudinal beam 102, the first bracket 6 includes a first connecting plate 601 fixedly connected to the first longitudinal beam 101, the second bracket 7 includes a second connecting plate 701 fixedly connected to the second longitudinal beam 102, and the first connecting plate 601 and the second connecting plate 701 are arranged in a V-shaped structure; specifically, the first connecting plate 601 and the first longitudinal beam 101 are fixedly connected by bolts or welding, and the second connecting plate 701 and the second longitudinal beam 102 are fixedly connected by bolts or welding; in this structural design, the first connecting plate 601 and the second connecting plate 701 are arranged in a V-shaped structure, which is conducive to forming a stable support and a reliable connection surface for the engine 201, and the structure is simple and easy to install, which is conducive to further improving the installation reliability of the range extender 1; at the same time, it is also conducive to lowering the installation center of gravity of the range extender 1 and improving the installation stability.

[0025] In this embodiment, the first bracket 6 also includes a first "X"-shaped reinforcement plate 602 fixedly connected to the back side of the first connecting plate 601, and the second bracket 7 also includes a second "X"-shaped reinforcement plate 702 fixedly connected to the back side of the second connecting plate 701; the "back side" here also means the "bottom side", and the side away from the range extender is the back side; specifically, the first "X"-shaped reinforcement plate 602 and the second "X"-shaped reinforcement plate 702 can respectively form a reinforcement cavity with the first connecting plate 601 and the second connecting plate 701, thereby improving the structural strength and rigidity of the first bracket 6 and the second bracket 7, thereby further improving the installation reliability of the range extender.

[0026] In this embodiment, a first bending portion 601a is provided on the upper portion of the first connecting plate 601, and the first bending portion 601a is fixed to the bottom surface of the first longitudinal beam 101. Specifically, the first bending portion 601a and the first longitudinal beam 101 are fixed by bolts. A second bending portion 701a is provided on the upper portion of the second connecting plate 701, and the second bending portion 701a is fixed to the bottom surface of the second longitudinal beam 102. Specifically, the second bending portion 701a and the second longitudinal beam 102 are fixed by bolts. With this structural design, the first connecting plate 601 and the second connecting plate 701 are firmly and reliably connected and easy to install, which is conducive to further improving the installation stability of the range extender.

[0027] In this embodiment, a first L-shaped reinforcing plate 101a is fixedly connected to the outer side surface of the first longitudinal beam 101, and the first L-shaped reinforcing plate 101a is fixedly connected to the first bending portion 601a. ​​Specifically, the first L-shaped reinforcing plate 101a is fixedly connected to the first bending portion 601a and the first longitudinal beam 101 by bolts respectively; a second L-shaped reinforcing plate 102a is fixedly connected to the outer side surface of the second longitudinal beam 102, and the second L-shaped reinforcing plate 102a is fixedly connected to the second bending portion 701a. Specifically, the second L-shaped reinforcing plate 102a and the second bending portion 701a are fixedly fixed to the second longitudinal beam 102 by bolts respectively; by providing the first L-shaped reinforcing plate 101a and the second L-shaped reinforcing plate 102a, the connection stability between the first connecting plate 601, the second connecting plate 701 and the vehicle frame can be strengthened, which is conducive to further enhancing the installation reliability of the range extender 1.

[0028] In this embodiment, the third suspension 5 includes a support arm 501 and a suspension cushion assembly 502 fixedly connected to the end of the support arm 501, the support arm 501 is fixedly connected to the top of the shell of the generator 202, and the suspension cushion assembly 502 is connected to the third bracket 8; specifically, the support arm 501 is connected to the middle part of the top of the shell of the generator 202 by three bolts arranged in a triangle, and the suspension cushion assembly 502 generally includes an outer frame welded on the support arm 501 and a rubber main spring vulcanized in the outer frame, which is an existing structure and will not be repeated here; in this structural design, by setting the third suspension 5 on the top of the generator 202, it is beneficial to have a reasonable position and reduce the center of gravity of the range extender installation.

[0029] In this embodiment, the third bracket 8 includes two third connecting plates 801 that are opposite and longitudinally arranged, and the suspension cushion assembly 502 is limitedly installed between the two third connecting plates 801; specifically, the suspension cushion assembly 502 is limitedly installed between the two third connecting plates 801 by bolts. This third bracket 8 structure can reliably limit the third suspension 5, which is beneficial to further improve the installation stability of the range extender 1.

[0030] In this embodiment, the third bracket 8 also includes an L-shaped connecting plate 802 that is fitted and fixed to the crossbeam 103 of the frame 1, and two third connecting plates 801 are fixedly connected to the L-shaped connecting plate 802. Specifically, the third connecting plate 801 is fixed to the L-shaped connecting plate 802 by welding. This structural design is conducive to enhancing the connection stability between the third connecting plate 801 and the frame, and at the same time, it is conducive to reducing assembly and reducing costs.

[0031] In this embodiment, the connection point between the first suspension 3 and the first bracket 6, the connection point between the second suspension 4 and the second bracket 7, and the connection point between the third suspension 5 and the third bracket 8 are arranged in an isosceles triangle or an approximately isosceles triangle; specifically, the first suspension 3 and the second suspension 4 are symmetrically arranged on both sides of the engine 201 cylinder body, and can be fixed to the cylinder body by bolts; the structure arranged in an isosceles triangle or an approximately isosceles triangle has good structural stability, which is conducive to further improving the installation stability of the range extender.

[0032] In the present embodiment, a reinforcing cross beam 9 is provided between the first bracket 6 and the second bracket 7, with its two ends respectively fixedly connected to the first bracket 6 and the second bracket 7; specifically, the reinforcing cross beam 9 is a tubular beam with a U-shaped or approximately U-shaped structure, and more specifically, the two ends of the reinforcing cross beam 9 are fixed to the lower part of the I-shaped reinforcing plate; by providing the reinforcing cross beam 9, the supporting stability of the first bracket 6 and the second bracket 7 to the engine 201 can be further enhanced, thereby improving the structural reliability.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A range extender installation structure, characterized in that: It comprises a vehicle frame (1) and a suspension assembly for connecting a range extender (2) to the vehicle frame (1), wherein the range extender (2) comprises an engine (201) and a generator (202) which are arranged longitudinally on the vehicle frame (1); The suspension assembly comprises a first suspension (3) and a second suspension (4) which are arranged on both sides of the engine (201) in a lateral direction and connected to the engine (201), and a third suspension (5) which is connected to the generator (202) and arranged in a longitudinal direction; The frame (1) is provided with a first bracket (6), a second bracket (7) and a third bracket (8) which are arranged corresponding to the first suspension (3), the second suspension (4) and the third suspension (5) and are respectively extended to the inner side of the frame (1); the first suspension (3) is fixedly connected to the first bracket (6), the second suspension (4) is fixedly connected to the second bracket (7), and the third suspension (5) is fixedly connected to the third bracket (8).

2. The range extender installation structure according to claim 1, characterized in that: The vehicle frame (1) comprises a first longitudinal beam (101) and a second longitudinal beam (102); the first bracket (6) comprises a first connecting plate (601) fixedly connected to the first longitudinal beam (101); the second bracket (7) comprises a second connecting plate (701) fixedly connected to the second longitudinal beam (102); the first connecting plate (601) and the second connecting plate (701) are arranged in a V-shaped structure.

3. The range extender installation structure according to claim 2, characterized in that: The first bracket (6) further comprises a first "X"-shaped reinforcement plate (602) fixedly connected to the back side of the first connecting plate (601), and the second bracket (7) further comprises a second "X"-shaped reinforcement plate (702) fixedly connected to the back side of the second connecting plate (701).

4. The range extender installation structure according to claim 2, characterized in that: The first connecting plate (601) has a first bent portion (601a) on its upper portion, and the first bent portion (601a) is fixedly attached to the bottom surface of the first longitudinal beam (101); the second connecting plate (701) has a second bent portion (701a) on its upper portion, and the second bent portion (701a) is fixedly attached to the bottom surface of the second longitudinal beam (102).

5. The range extender installation structure according to claim 4, characterized in that: A first L-shaped reinforcing plate (101a) is fixedly connected to the outer side surface of the first longitudinal beam (101), and the first L-shaped reinforcing plate (101a) is fixedly connected to the first bending portion (601a); a second L-shaped reinforcing plate (102a) is fixedly connected to the outer side surface of the second longitudinal beam (102), and the second L-shaped reinforcing plate (102a) is fixedly connected to the second bending portion (701a).

6. The range extender installation structure according to claim 2, characterized in that: The third suspension (5) comprises a support arm (501) and a suspension cushion assembly (502) fixedly connected to the end of the support arm (501), the support arm (501) being fixedly connected to the top of the shell of the generator (202), and the suspension cushion assembly (502) being connected to the third bracket (8).

7. The range extender installation structure according to claim 6, characterized in that: The third bracket (8) comprises two third connecting plates (801) which are opposite to each other and arranged longitudinally, and the suspension cushion component (502) is installed between the two third connecting plates (801) in a limited position.

8. The range extender installation structure according to claim 7, characterized in that: The third bracket (8) further comprises an L-shaped connecting plate (802) which is fitted and fixed to the crossbeam (103) of the vehicle frame (1), and the two third connecting plates (801) are fixedly connected to the L-shaped connecting plate (802).

9. The range extender installation structure according to claim 1, characterized in that: The connection point between the first suspension (3) and the first bracket (6), the connection point between the second suspension (4) and the second bracket (7), and the connection point between the third suspension (5) and the third bracket (8) are arranged in an isosceles triangle or a nearly isosceles triangle.

10. The range extender installation structure according to claim 1, characterized in that: A reinforcing crossbeam (9) is provided between the first bracket (6) and the second bracket (7), with two ends respectively fixedly connected to the first bracket (6) and the second bracket (7).

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