CN211731560U - New energy automobile front auxiliary frame structure - Google Patents

Abstract

The utility model relates to a front subframe structure of a new energy vehicle, which comprises a longitudinal beam 1 and a longitudinal beam 2 arranged at intervals, and the two are connected to form a whole by a front beam and a rear beam respectively; . Swing arm installation components are respectively provided at the junction positions of the two longitudinal beams. The rear beam at the position of the swing arm installation component extends an inclined oblique rod, and its end is provided with a rear sleeve for installation; the two ends of the front beam are respectively provided with and installed The front bushing corresponding to the rear bushing has a compressor mounting bracket on the front beam close to the two ends of the longitudinal beam, a front suspension mounting bracket is arranged on the bottom surface of the middle of the front beam, and a curved pipe beam is arranged at the front of the front beam, and the middle A condenser mounting bracket is installed near the side of the front beam, and condenser mounting brackets are provided at both ends between the elbow beam and the front beam. It is convenient for the modular assembly of the front suspension and the powertrain; the brackets of each mounting point are welded on the pipe beam with sheet metal stamping parts, and the development cost is low and the structure is simple.

Description

New energy vehicle front subframe structure

technical field

The utility model relates to the technical field of vehicle frame devices, in particular to a front subframe structure of a new energy vehicle.

Background technique

The subframe can be regarded as the skeleton of the front and rear axles, and is an integral part of the front and rear axles. The sub-frame is not a complete frame, but only supports the front and rear axles and suspension brackets, so that the axle and suspension pass through it and then connect to the "front frame", which is customarily called "sub-frame". The role of the sub-frame is to block vibration and noise and reduce its direct entry into the car, so most of them appear on luxury cars and off-road vehicles, and some cars also have sub-frames for the engine. The suspension of the traditional load-bearing body without a subframe is directly connected to the body steel plate. Therefore, the suspension rocker arm mechanisms of the front and rear axles are all parts, not assemblies. After the subframe is born, the front and rear suspensions can be assembled on the subframe first to form an axle assembly, and then the assembly can be installed on the body together. The attachment point of the subframe to the body is like the engine mount. Usually, an axle assembly needs to be connected to the body by four suspension points, which can not only ensure its connection rigidity, but also have a good vibration isolation effect. Therefore, for the subframe, the main purpose in terms of performance is to reduce the introduction of road vibrations and improve the connection stiffness of the suspension system. Therefore, the car with the subframe will feel that the chassis is very solid and compact when driving. In the prior art, electric vehicles have complex structures, and have high requirements on structural strength and safety. The front cabin structure of the vehicle is limited by space and component structure, resulting in difficult layout and inconvenience in assembly, and a balance between vehicle stability and operability. Bad sex.

Utility model content

Aiming at the shortcomings of the above-mentioned existing production technologies, the present applicant provides a front subframe structure of a new energy vehicle with a reasonable structure, which solves the problem of difficult arrangement of components in the front cabin of an electric vehicle.

The technical scheme adopted by the utility model is as follows:

A front subframe structure of a new energy vehicle, comprising a longitudinal beam 1 and a longitudinal beam 2 arranged at intervals, the longitudinal beam 1 and the longitudinal beam 2 are respectively connected to form a whole through a front beam and a rear beam; both ends of the rear beam are connected to the longitudinal beam. 1. Swing arm installation components are respectively provided at the junction positions of the two longitudinal beams. The rear cross beam at the position of the swing arm installation component extends an inclined oblique rod, and its end is provided with a rear sleeve; the two ends of the front cross beam are respectively provided with Install the front bushing corresponding to the rear bushing, a compressor mounting bracket is arranged on the front beam close to the two ends of the longitudinal beam, a front suspension mounting bracket is arranged on the bottom surface of the middle of the front beam, and a curved pipe beam is arranged at the front of the front beam. A condenser mounting bracket is installed on the side close to the front beam, and a condenser mounting bracket is installed at both ends between the elbow beam and the front beam. Motor suspension mounting brackets are arranged on the longitudinal beam.

As a further improvement of the above technical solution:

The two swing arm mounting assemblies are symmetrically arranged and have the same structure, including a mounting bracket on the rear mounting point of the swing arm and a mounting bracket under the rear mounting point of the swing arm. The rear beam is provided with a frame rear mounting bracket and a frame rear mounting bracket two, and a rear suspension mounting bracket is arranged in the middle of the rear beam located on one side of the second frame rear mounting bracket.

The section of the mounting bracket on the rear mounting point of the swing arm is a U-shaped structure, and the upper limit plate and the lower limit plate are respectively provided on the two side walls.

A front mounting point mounting bracket of the swing arm is symmetrically installed in the middle of the longitudinal beam 1 and the longitudinal beam 2.

The top opening of the swing arm front mounting point mounting bracket is provided with a reinforcing plate for the swing arm front mounting point mounting bracket.

The first longitudinal beam and the second longitudinal beam located on one side of the mounting bracket at the front mounting point of the swing arm are respectively provided with guard plate mounting brackets.

The middle of the motor suspension installation bracket is provided with a motor suspension installation bracket reinforcement plate.

Reinforcing ribs are arranged between the rear beam, the first longitudinal beam and the second longitudinal beam.

The beneficial effects of the present utility model are as follows:

The utility model has a compact and reasonable structure, is convenient to operate, provides front suspension support, makes the entire vehicle structure more stable and balanced, has a stronger sense of driving operation, and greatly increases the driving safety and comfort of the vehicle; Modular assembly; each mounting bracket of the front subframe is welded on the pipe beam with sheet metal stamping parts, and the main fixing parts are the front swing arm assembly, steering gear assembly, power suspension assembly, condenser, air conditioning compressor , Front protection bracket, compared with the front subframe in the form of traditional sheet metal stamping and welding, the development cost is lower, and the structure is simple.

Description of drawings

FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention.

FIG. 2 is a bottom view of FIG. 1 .

FIG. 3 is a cross-sectional view of the N-N section in FIG. 2 .

Among them: 1. Bending beam; 2. Front beam; 3. Front casing; 4. Motor suspension mounting bracket; 5. Longitudinal beam one; 6. Mounting bracket for front mounting point of swing arm; Mounting bracket reinforcement plate; 8. Mounting bracket on the rear mounting point of the swing arm; 9. Mounting bracket under the rear mounting point of the swing arm; 10. Steering gear mounting bracket; 11. The rear mounting bracket of the frame; 12. The rear mounting bracket of the frame 2; 13. Rear beam; 14. Rear suspension mounting bracket; 18. Longitudinal beam 2; 21. Compressor mounting bracket; 23. Front suspension mounting bracket; 24. Condenser mounting bracket 1; 25. Condenser mounting bracket 2. 27. Reinforcing plate for motor suspension mounting bracket; 28. Mounting bracket for guard plate; 29. Lower limit plate; 30. Upper limit plate; 31. Reinforcing rib;

Detailed ways

The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 and FIG. 2 , the front sub-frame structure of the new energy vehicle in this embodiment includes longitudinal beams 1 5 and longitudinal beams 18 arranged at intervals, and longitudinal beams 1 5 and longitudinal beams 18 pass through the front The cross beam 2 and the rear cross beam 13 are connected as a whole; the two ends of the rear cross beam 13 are respectively provided with a swing arm installation assembly at the intersection positions of the longitudinal beam 1 5 and the longitudinal beam 2 18, and the rear beam 13 at the position of the swing arm installation assembly extends and tilts The inclined rod is provided with a rear casing 32 at its end; the two ends of the front beam 2 are respectively provided with a front casing 3 corresponding to the installation rear casing 32, and a compressor is provided on the front beam 2 close to one end of the longitudinal beam 2 18 Mounting bracket 21, a front suspension mounting bracket 23 is arranged on the bottom surface of the middle part of the front beam 2, a curved pipe beam 1 is arranged at the front of the front beam 2, and a condenser mounting bracket 24 is installed in the middle near the front beam 2 side, and the curved pipe beam 1 A condenser mounting bracket 2 25 is arranged at both ends between the front beam 2 and the longitudinal beam 1 5; a motor suspension mounting bracket 4 is arranged on the longitudinal beam 1 5 .

The two swing arm mounting assemblies are symmetrically arranged and have the same structure, including a mounting bracket 8 on the rear mounting point of the swing arm, a lower mounting bracket 9 at the rear mounting point of the swing arm, and one end of the mounting bracket 8 on the rear mounting point of the swing arm is connected to a steering gear mounting bracket 10 , the rear beam 13 on the rear side is provided with a rear mounting bracket 11 and a rear mounting bracket 2 12, and a rear suspension mounting bracket 14 is arranged in the middle of the rear beam 13 on one side of the rear mounting bracket 12 of the vehicle frame. .

As shown in FIG. 3 , the cross-section of the mounting bracket 8 on the rear mounting point of the swing arm is a U-shaped structure, and an upper limit plate 30 and a lower limit plate 29 are respectively provided on the two side walls thereof.

Longitudinal beam one 5 and longitudinal beam two 18 are symmetrically installed with a front mounting point mounting bracket 6 of the swing arm.

The top opening of the swing arm front mounting point mounting bracket 6 is provided with a swing arm front mounting point mounting bracket reinforcing plate 7 .

The first longitudinal beam 5 and the second longitudinal beam 18 located on one side of the mounting bracket 6 at the front mounting point of the swing arm are respectively provided with guard plate mounting brackets 28 .

A motor suspension mounting bracket reinforcing plate 27 is provided in the middle of the motor suspension mounting bracket 4 .

Reinforcing ribs 31 are provided between the rear cross beam 13 , the longitudinal beam one 5 and the longitudinal beam two 18 .

During the implementation of the utility model, the front suspension, the power assembly, the transmission shaft, the steering gear, the compressor and the front sub-frame can be separately assembled on the sub-assembly table through the mounting brackets provided on the main body of the front sub-frame. After that, it is assembled with the body as a whole to realize the modular assembly of the front suspension and powertrain; the design structure of the front subframe can be used for the subsequent development of the model, which does not occupy the layout space of the whole vehicle, and has a simple structure and low cost.

The above description is an explanation of the present utility model, not a limitation of the utility model. For the limited scope of the present utility model, refer to the claims, and any form of modification can be made within the protection scope of the present utility model.

Claims (8)

1. The utility model provides a sub vehicle frame structure before new energy automobile which characterized in that: the device comprises a first longitudinal beam (5) and a second longitudinal beam (18) which are arranged at intervals, wherein the first longitudinal beam (5) and the second longitudinal beam (18) are respectively connected into a whole through a front cross beam (2) and a rear cross beam (13); swing arm mounting assemblies are respectively arranged at the joint positions of the two ends of the rear cross beam (13) and the longitudinal beam I (5) and the longitudinal beam II (18), inclined rods extend from the rear cross beam (13) at the positions of the swing arm mounting assemblies, and a rear mounting sleeve (32) is arranged at the end part of the inclined rods; a front sleeve (3) corresponding to the mounting rear sleeve (32) is arranged at each of two ends of the front beam (2), a compressor mounting support (21) is arranged on the front beam (2) close to one end of the longitudinal beam II (18), a front suspension mounting support (23) is arranged on the bottom surface of the middle of the front beam (2), a bent pipe beam (1) is arranged at the front part of the front beam (2), a condenser mounting support I (24) is arranged at the middle part of the front beam close to the front beam (2), and a condenser mounting support II (25) is arranged at each of two ends between the bent pipe beam (1) and the front beam (2); the longitudinal beam (5) is provided with a motor suspension mounting bracket (4).

2. The new energy automobile front subframe structure of claim 1, wherein: two swing arm installation component symmetries set up and the structure is the same, and it includes mounting bracket (8) on the mounting point behind the swing arm, mounting bracket (9) under the mounting point behind the swing arm, and mounting bracket (8) one end is connected with steering gear installing support (10) on the mounting point behind the swing arm, is equipped with behind frame installing support (11) and behind the frame installing support two (12) on rear cross beam (13) of its rear side, and rear cross beam (13) middle part that is located behind frame installing support two (12) one side is equipped with back suspension installing support (14).

3. The front subframe structure of a new energy vehicle of claim 2, wherein: the section of a mounting bracket (8) on the mounting point behind the swing arm is of a U-shaped structure, and an upper limiting plate (30) and a lower limiting plate (29) are respectively arranged on two side walls of the mounting bracket.

4. The front subframe structure of a new energy vehicle of claim 2, wherein: the middle parts of the first longitudinal beam (5) and the second longitudinal beam (18) are symmetrically provided with swing arm front mounting point mounting brackets (6).

5. The new energy automobile front subframe structure of claim 4, wherein: and a front mounting point mounting bracket reinforcing plate (7) of the swing arm is arranged at the opening at the top of the front mounting point mounting bracket (6) of the swing arm.

6. The new energy automobile front subframe structure of claim 4, wherein: and a guard plate mounting bracket (28) is respectively arranged on the first longitudinal beam (5) and the second longitudinal beam (18) which are positioned on one side of the swing arm front mounting point mounting bracket (6).

7. The new energy automobile front subframe structure of claim 1, wherein: and a motor suspension mounting bracket reinforcing plate (27) is arranged in the middle of the motor suspension mounting bracket (4).

8. The new energy automobile front subframe structure of claim 1, wherein: reinforcing ribs (31) are arranged among the rear cross beam (13), the first longitudinal beam (5) and the second longitudinal beam (18).

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