CN215398911U

CN215398911U - Sectional type half-bearing frame for new energy passenger car

Info

Publication number: CN215398911U
Application number: CN202121775713.7U
Authority: CN
Inventors: 焦俊红
Original assignee: Hubei Huayue Auto Parts Co ltd
Current assignee: Hubei Huayue Auto Parts Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-04
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to a sectional type half-bearing frame for a new energy passenger car, which comprises a front section frame assembly, a middle section frame assembly and a rear section frame assembly, wherein the front section frame assembly is connected with the middle section frame assembly; the middle frame assembly is of a bearing structure, is integrally connected with the vehicle body and is used for installing a power battery; the front frame assembly and the rear frame assembly adopt a traditional integral stamping structure; the frame is integrally divided into the front section frame assembly, the middle section frame assembly and the rear section frame assembly, so that the novel energy bus frame is economical and flexible, the production cost of the new energy bus frame is reduced, and the production period of the frame is shortened; and the power battery is arranged on the middle-section frame assembly, so that the load distribution of the whole vehicle is reasonable. The phenomenon that the rear section of a traditional arrangement mode which is easy to be led out sinks is avoided.

Description

Sectional type half-bearing frame for new energy passenger car

Technical Field

The utility model relates to the technical field of automobile frames, in particular to a sectional type half-bearing frame for a new energy bus.

Background

In recent years, with the development and improvement of national energy conservation and emission reduction and related vehicle trial policy, foreign advanced technologies are actively introduced into passenger cars in the aspects of vehicle manufacturing and related part use, the actual situation of China is combined with the foreign advanced technologies, so that the level of the new energy passenger car in China is kept level with the levels of other advanced countries, the development of the new energy passenger car in China is promoted, and a good foundation is laid for the related brand vehicles in China to move to the world.

Because the space that the power battery of new forms of energy passenger train occupy is great, if the frame adopts traditional whole punching press volume structure, then be unfavorable for make full use of space. Therefore, the existing new energy passenger car usually adopts a bearing type structure, so that the production period is long and the cost is high.

SUMMERY OF THE UTILITY MODEL

Based on the expression, the utility model provides the sectional type half-bearing frame for the new energy passenger car, the frame is integrally divided into three sections, the front section and the rear section adopt an integral stamping beam structure, the middle section adopts a bearing type structure, and the power battery is placed in the middle section, so that the novel energy passenger car is economical and flexible.

The technical scheme for solving the technical problems is as follows: a sectional type half-bearing frame for a new energy passenger car comprises a front section frame assembly, a middle section frame assembly and a rear section frame assembly; the middle frame assembly is of a bearing structure and is integrally connected with the vehicle body; the front section frame assembly is arranged at the front end of the middle section frame assembly through a front-middle lap joint structure and is used for connecting the front section of the vehicle body; the rear frame assembly is arranged at the rear end of the middle frame assembly through a middle-rear lap joint structure and is used for connecting the rear section of the vehicle body; and the middle section frame assembly is used for mounting a power battery.

On the basis of the technical scheme, the utility model can be further improved as follows.

Furthermore, the middle frame assembly comprises a bottom frame and at least two partition frames, and the partition frames are sequentially fixed on the top surface of the bottom frame from front to back; every two adjacent separate and all be provided with battery support between the frame, battery support's both ends are connected adjacent two respectively separate the frame, are used for fixing power battery.

Furthermore, a bent beam is arranged between every two adjacent separation frames, and two ends of the bent beam are respectively connected with the two adjacent separation frames; the middle sections of the bent beams are all upwards convex.

Further, an inner circumference skin is arranged between two adjacent spacers.

Furthermore, the front middle lapping structure comprises a front connecting plate and a front lower inclined strut; the front connecting plates are fixed on the left side and the right side of the front end of the middle section frame assembly and are connected with the left side and the right side of the middle section frame assembly and the front section frame assembly; the front lower inclined strut is connected with the bottom of the front end face of the middle frame assembly and the rear end of the bottom face of the front frame assembly.

Furthermore, the middle and rear lap joint structure comprises a rear connecting plate and a rear lower inclined strut; the rear connecting plates are fixed on the left side and the right side of the rear end of the middle frame assembly and are connected with the left side and the right side of the middle frame assembly and the rear frame assembly; the rear lower inclined strut is connected with the bottom of the rear end face of the middle frame assembly and the front end of the bottom face of the rear frame assembly.

Furthermore, the rear frame assembly comprises two rear longitudinal beams which are respectively positioned at the left side and the right side and a plurality of rear cross beams which are positioned between the two rear longitudinal beams, and two ends of each rear cross beam are respectively connected with the two rear longitudinal beams.

Furthermore, the middle section of the rear longitudinal beam is upwards convex.

Furthermore, the front frame assembly comprises two front longitudinal beams respectively positioned at the left side and the right side and a plurality of front cross beams positioned between the two front longitudinal beams, and two ends of each front cross beam are respectively connected with the two front longitudinal beams.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

1. the frame is integrally divided into a front-section frame assembly, a middle-section frame assembly and a rear-section frame assembly, wherein the middle-section frame assembly is of a bearing structure, and the rear-section frame assembly and the front-section frame assembly are of traditional integral stamping beam structures, so that the novel energy bus frame is economical and flexible, the frame production cost of a new-energy bus is reduced, and the frame production period is shortened;

2. the power battery is arranged on the middle-section frame assembly, so that the load distribution of the whole vehicle is reasonable. The phenomenon that the rear section of a traditional arrangement mode which is easy to be led out sinks is avoided.

Drawings

FIG. 1 is a schematic structural diagram of a sectional type semi-load-bearing frame for a new energy passenger car according to a first embodiment of the utility model;

FIG. 2 is a schematic structural view of a mid-and-mid-frame assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of another angle of the mid-to-mid frame assembly in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural view of a rear frame assembly according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a sectional type semi-load-bearing frame for a new energy bus provided by the embodiment II of the utility model;

FIG. 6 is a schematic structural view of a rear frame assembly according to a second embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a front section frame assembly; 11. a front longitudinal beam; 12. a front cross member; 2. a middle frame assembly; 21. a chassis; 22. a separation frame; 23. a battery holder; 24. bending the beam; 25. an inner peripheral skin; 3. a rear frame assembly; 31. a rear stringer; 32. a rear cross member; 41. a front connecting plate; 42. a front lower inclined strut; 51. a rear connecting plate; 52. and a rear lower inclined strut.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Example one

A sectional type half-bearing frame for a new energy passenger car is mainly suitable for an urban new energy passenger car with the length of 8-9 meters, and comprises a front section frame assembly 1, a middle section frame assembly 2 and a rear section frame assembly 3 as shown in figure 1. The middle frame assembly 2 is a bearing structure and is integrally connected with the vehicle body. The front section frame assembly 1 is arranged at the front end of the middle section frame assembly 2 through a front middle lapping structure and is used for connecting the front section of a vehicle body. The rear frame assembly 3 is arranged at the rear end of the middle frame assembly 2 through a middle-rear lap joint structure and is used for connecting the rear section of the vehicle body. The frame is integrally divided into a front section frame assembly 1, a middle section frame assembly 2 and a rear section frame assembly 3, wherein the middle section frame assembly 2 is of a bearing type structure, the rear section frame assembly 3 and the front section frame assembly 1 are of a traditional integral stamping beam structure, the novel energy bus frame is economical and flexible, the frame production cost of the novel energy bus is reduced, and the frame production period is shortened.

Specifically, as shown in fig. 2 and 3, the middle frame assembly 2 includes an underframe 21 and at least two spacers 22, both the underframe 21 and the spacers 22 are truss structures, and both the underframe 21 and the spacers 22 are fixed in a double-angle writing manner in order to reduce weight and weight of the strength of the members. The shelves 22 are sequentially mounted on the top surface of the bottom frame 21 from front to back, and the top of the bottom frame 21 is divided into a plurality of mounting areas. And a battery bracket 23 is arranged between every two adjacent partition frames 22, two ends of the battery bracket 23 are respectively fixed on the two partition frames 22, and the battery bracket 23 is used for fixing the side wall of the power battery. An inner peripheral skin 25 is further arranged on the middle section frame assembly 2, and the inner walking skin 25 is arranged between the two spacers 22 and used for protecting the power battery.

And a bent beam 24 is further arranged between every two adjacent separation frames 22, and two ends of the bent beam 24 are respectively fixed on the two separation frames 22 and used for improving the supporting strength of the middle-section frame assembly 2. The bent beam 24 is shaped like a rectangular tube, and the middle part of the bent beam is upwards protruded, so that the installation space of the battery below is enlarged.

The front section frame assembly 1 comprises two front longitudinal beams 11 positioned on the left side and the right side and a plurality of front cross beams 12 positioned between the two front longitudinal beams 11, wherein two ends of each front cross beam 12 are riveted with the two front longitudinal beams 11 respectively and used for fixing the two front longitudinal beams 11 and stabilizing the front section frame assembly 1. In this embodiment, there are three front cross members 12 from front to rear, which are a first cross member, a second cross member, and a third cross member. The first beam is also used for installing a valve component, fixing a pipeline and an electric device; the second cross beam is also used for mounting a front stabilizer bar, a front air storage cylinder and a fixed pipeline; the third cross beam is also used for installing the front air storage cylinder and fixing the pipeline. A front towing hook for a trailer, a front bracket for connecting a vehicle body, a front steering support for mounting a steering gear, a front plate spring front support for mounting a front plate spring, a front stabilizing support for fixing a front axle stabilizing bar, a front limiting support for limiting the movement stroke of the plate spring, a front shock absorber support for mounting a front shock absorber and a front plate spring rear support for mounting the front plate spring are sequentially fixed on the front longitudinal beam 11 from front to back. A front lapping wire bracket parallel to the front longitudinal beam 11 is also arranged between the two front longitudinal beams 11 and used for fixing a longitudinal front middle pipeline.

The front-middle lapping structure comprises two front connecting plates 41 and two front lower inclined struts 42, wherein the two front connecting plates 41 are respectively connected with the left and right sides of the front end of the middle frame assembly 2 and the left and right sides of the rear end of the front frame assembly 1. The two front lower inclined struts 42 are respectively positioned below the two front connecting plates 41, and two ends of the front lower inclined strut 42 are respectively connected with the bottom of the front end surface of the middle frame assembly 2 and the rear end of the bottom surface of the front frame assembly 1. The front section frame assembly 1 and the middle section frame assembly 2 are connected together through longitudinal transverse connection and a lower support, so that the connection strength is ensured, and the frame is firm.

The rear frame assembly 3 includes two rear longitudinal beams 31 located at the left and right sides and a plurality of rear cross beams 32 located between the two rear longitudinal beams 31, and both ends of the rear cross beam 32 are riveted with the two rear longitudinal beams 31 respectively for fixing the two rear longitudinal beams 31 and stabilizing the rear frame assembly 3. In this embodiment, there are three rear cross members 32, i.e., a fourth cross member, a fifth cross member, and a sixth cross member, from front to rear. The fourth cross beam is also used for installing a valve and fixing a pipeline; the fifth cross beam is also used for mounting a rear stabilizer bar; the sixth beam is also used for mounting the pipeline. A rear plate spring front bracket for mounting a rear plate spring, a rear shock absorber bracket for mounting a rear shock absorber, a rear plate spring rear bracket for mounting a rear plate spring and a motor bracket for mounting a motor are sequentially fixed on the rear longitudinal beam 31 from front to rear. A rear lapping wire bracket is arranged between the two front longitudinal beams 11 and used for fixing a longitudinal rear middle pipeline and a transverse pipeline.

For the installation of the bridge and the arrangement of the whole vehicle, the middle sections of the two rear longitudinal beams 31 are both protruded downwards. Specifically, as shown in fig. 4, the front-end width height H1, the middle-end width height H2, and the rear-end width height H3 of the rear side member 31 are 180mm, 140mm, and 165mm, respectively. The middle section top of the rear longitudinal beam 31 is 125mm higher than the front section top D1, and the middle section top is 80mm higher than the rear section top D2.

The middle-rear lap joint structure comprises two rear connecting plates 51 and two rear lower inclined struts 52, wherein the two rear connecting plates 51 are respectively connected with the left and right sides of the rear end of the middle frame assembly 2 and the left and right sides of the front end of the rear frame assembly 3. The two rear lower inclined struts 52 are respectively positioned below the two rear connecting plates 51, and two ends of the rear lower inclined strut 52 are respectively connected with the bottom of the rear end surface of the middle frame assembly 2 and the front end of the bottom surface of the rear frame assembly 1. The middle frame assembly 2 and the rear frame assembly 3 are connected together through longitudinal and transverse connection and lower support supports, so that the connection strength is ensured, and the frame is firm.

Example two

Compared with the first embodiment, the first embodiment is mainly suitable for urban new energy buses with the length of 6-7 meters. Therefore, as shown in fig. 5, in the middle frame assembly 2 of the present embodiment, the top surface of the bottom frame 21 is provided with three spacers 22 from front to back, which divide the top of the bottom frame 21 into two mounting areas for mounting three power batteries. The structure of this embodiment is more compact.

As shown in fig. 6, in the rear frame assembly 3 of the present embodiment, the front-end width height H1, the middle-end width height H2, and the rear-end width height H3 of the rear side member 31 are all 140 mm. The middle section top of the rear longitudinal beam 31 is higher than the front section top by D1, and the middle section top is higher than the rear section top by D2, which are both 80 mm.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A sectional type half-bearing frame for a new energy passenger car is characterized by comprising a front section frame assembly (1), a middle section frame assembly (2) and a rear section frame assembly (3); the middle section frame assembly (2) is of a bearing structure and is integrally connected with the vehicle body; the front section frame assembly (1) is arranged at the front end of the middle section frame assembly (2) through a front-middle lap joint structure and is used for connecting the front section of the vehicle body; the rear section frame assembly (3) is arranged at the rear end of the middle section frame assembly (2) through a middle-rear lap joint structure and is used for connecting the rear section of the vehicle body; and the middle section frame assembly (2) is used for mounting a power battery.

2. The segmented semi-load-bearing frame for the new energy passenger car is characterized in that the middle-segment frame assembly (2) comprises an underframe (21) and at least two spacers (22), wherein the spacers (22) are sequentially fixed on the top surface of the underframe (21) from front to back; every two adjacent separate and all be provided with battery support (23) between frame (22), the both ends of battery support (23) are connected adjacent two respectively separate frame (22) for the fixed battery.

3. The sectional type half-bearing frame for the new energy passenger car is characterized in that a bending beam (24) is arranged between every two adjacent spacers (22), and two ends of the bending beam (24) are respectively connected with the two adjacent spacers (22); the middle sections of the bent beams (24) are all upwards convex.

4. The segmented semi-load-bearing frame for a new energy passenger vehicle according to claim 2, characterized in that an inner circumferential skin (25) is arranged between two adjacent spacers (22).

5. The segmented semi-load-bearing frame for the new energy passenger vehicle according to claim 1, characterized in that the front-middle lap joint structure comprises a front connecting plate (41) and a front lower inclined strut (42); the front connecting plates (41) are fixed on the left side and the right side of the front end of the middle frame assembly (2) and are connected with the left side and the right side of the middle frame assembly (2) and the front frame assembly (1); the front lower inclined strut (42) is connected with the bottom of the front end face of the middle section frame assembly (2) and the rear end of the bottom face of the front section frame assembly (1).

6. The segmented semi-load-bearing frame for the new energy passenger car according to claim 1, characterized in that the middle-rear lap joint structure comprises a rear connecting plate (51) and a rear lower inclined strut (52); the rear connecting plates (51) are fixed on the left side and the right side of the rear end of the middle frame assembly (2) and are connected with the left side and the right side of the middle frame assembly (2) and the rear frame assembly (3); the rear lower inclined strut (52) is connected with the bottom of the rear end face of the middle frame assembly (2) and the front end of the bottom face of the rear frame assembly (3).

7. The segmented semi-load-bearing frame for the new energy passenger car is characterized in that the rear frame assembly (3) comprises two rear longitudinal beams (31) respectively positioned on the left side and the right side and a plurality of rear cross beams (32) positioned between the two rear longitudinal beams (31), and two ends of each rear cross beam (32) are respectively connected with the two rear longitudinal beams (31).

8. The segmented semi-load-bearing frame for the new energy passenger car according to claim 7, characterized in that the middle section of the rear side rail (31) is convex upward.

9. The segmented semi-load-bearing frame for the new energy passenger car is characterized in that the front-section frame assembly (1) comprises two front longitudinal beams (11) respectively positioned on the left side and the right side and a plurality of front cross beams (12) positioned between the two front longitudinal beams (11), and two ends of each front cross beam (12) are respectively connected with the two front longitudinal beams (11).