CN101348130B - Bearing type novel structure electric automobile frame - Google Patents

Abstract

The invention relates to a bearing-typed novel structure electric automobile frame, which is characterized by consisting of a main automobile frame (1), an auxiliary automobile frame (2) and a top frame (3); the auxiliary automobile frame (2) and the top frame (3) are fixedly connected at two sides and the top of the main automobile frame (1) respectively; the main automobile frame (1), the auxiliary automobile frame (2) and the top frame (3) are composed of aluminium alloy or light alloy steel; the main automobile frame (1), the auxiliary automobile frame (2) and the top frame (3) are welded into a whole so as to form a bearing typed light automobile frame. The bearing-typed novel structure electric automobile frame uses the light alloy material and the optimized frame topological structure and dimension so as to lighten the weight; after the main automobile frame, the auxiliary automobile frame and the top are welded into the integral structure of a frame, the strength and rigidity of the automobile frame are reinforced further, thus ensuring the safety of the automobile. The bearing-typed novel structure electric automobile frame can be used for open electric cars and electric cars with enclosed structure and has wide applicable range.

Description

A load-bearing new structure electric vehicle frame

technical field

The invention relates to an electric vehicle frame, in particular to a load-bearing new structure electric vehicle frame. The utility model belongs to the technical field of transportation tools.

Background technique

At present, in order to solve the problem of automobile tail gas polluting the atmosphere, people are devoting themselves to the research and development of low-energy and small-displacement automobile engines on the one hand, and on the other hand, they have begun to study the use of electric energy engines instead of gasoline engines to manufacture electric vehicles. With the continuous improvement of rechargeable battery technology and electric motor technology, more and more people pay attention to electric vehicles. Due to the limitations of existing models, pure electric vehicles modified by traditional vehicles lead to unreasonable layout of vehicle parts, difficulty in system matching, large body weight, small load capacity, and less effective passenger space, making it impossible to fully utilize electric vehicles. advantages; the frame structure of pure electric vehicles for venues is too simple, the overall structural rigidity of the frame is low, the safety is poor, and it is difficult to meet the requirements of road vehicles; in addition, the existing frames are not conducive to the assembly of electric vehicles, especially the battery The installation and quick replacement are not suitable for the needs of development.

Contents of the invention

The purpose of the present invention is to provide a light-weight load-bearing new structure electric vehicle frame, which can not only reduce the weight of the electric vehicle, but also provide the power drive system, various chassis parts, and body parts of the electric vehicle. And interior parts, etc. provide the installation foundation, and at the same time ensure that the electric vehicle has good strength, stiffness and vibration performance.

The purpose of the present invention can be reached by taking the following measures:

A load-bearing new structure electric vehicle frame, the structural features of which are:

1) It consists of a main frame, a sub-frame and a top frame, and the sub-frame and the top frame are respectively fixedly connected to the sides and the top of the main frame; the main frame, the sub-frame and the top frame are made of aluminum alloy profiles or It is composed of light alloy steel profiles; the main frame, sub-frame and top frame are welded into a whole to form a load-bearing lightweight frame;

2) The sub-frame is composed of two sub-beams parallel to the main beam of the main frame, several cross bars and several vertical bars; the two ends of the cross bars are fixedly connected with the main beam and the sub-beam respectively; The two ends of the bar are respectively fixedly connected with the front axle of the main frame and the front end of the sub-beam, and the two ends of the vertical bar at the rear are respectively fixedly connected with the rear axle of the main frame and the rear end of the sub-beam.

Or the vertical rod extends upward from the main frame to the top frame, and has fixed connection points with the main frame, the subframe and the top frame.

The purpose of the present invention can also be achieved by adopting the following measures:

One embodiment of the present invention is: the main frame is made of two parallel longitudinal girders, a bench-shaped front axle and a bench-shaped rear axle, and two transverse support rods; The front end of the bridge is fixedly connected, and the second transverse support rod is fixedly connected to the rear ends of the two main beams; the bridge legs of the front bridge are fixedly connected to the front end of the main beam, and the bridge legs of the rear bridge are fixedly connected to the rear end of the main beam.

One embodiment of the present invention is: a longitudinal spine beam is arranged between the two parallel longitudinal main beams of the main frame, and a middle transverse support rod is arranged in the middle of the two parallel longitudinal main beams of the main frame, The two ends of the longitudinal spine beam are fixedly connected with the front axle and the rear axle respectively, and the middle part of the longitudinal spine beam is fixedly connected with the middle horizontal support rod.

A kind of embodiment of the present invention is: roof frame is made of front roof frame, and this front roof frame is fixedly connected with the front end of main vehicle frame; Or is made of front roof frame, connecting frame and rear roof frame; The frame is fixedly connected to the main frame, or as a top frame fixedly connected to the top of the main frame, the front top frame and the rear top frame are fixedly connected to the main frame and the sub-frame respectively; top shelf.

An embodiment of the present invention is: the width of the front bridge deck and the width of the rear bridge deck are greater than the width of the heald main girder, the main girder, the front bridge deck and the rear bridge deck constitute the main load-bearing structure of the power system and chassis parts, and Various vehicle instruments and consoles can be installed.

One embodiment of the present invention is: the main frame is provided with a series of elastic bearings or connecting joints, which are used for fixing and installing the battery pack, the motor and the chassis components.

One embodiment of the present invention is that the support structure is provided by the vertical bar for the vehicle door.

One embodiment of the present invention is: instead of the bridge legs of the front axle and the rear axle being fixedly connected to the main girder, several legs of the front axle and the rear axle can be fixedly connected with the subframe and supported on the subframe.

The beneficial effects of the present invention are:

1. The main frame, sub-frame and top frame of the present invention are made of industrial aluminum alloy profiles or light alloy steel, and are welded to form a space frame overall structure, which is used as a load-bearing body of an electric vehicle. By using lightweight alloy materials and optimized frame topology and size, weight can be reduced; the patented main frame can ensure sufficient frame strength and rigidity, the main frame, sub-frame and top frame After the frame structure is welded into one, the strength and rigidity of the frame are further strengthened, thereby ensuring the safety of the car.

2. The load-bearing frame of the present invention fully considers the layout space, connection and installation methods of various parts. For example, the power platform of an electric vehicle can be safely and reliably installed on the main frame, and the car door can be safely and reliably installed on the auxiliary frame. On the vehicle frame, the vehicle body can be safely and reliably installed on the vehicle frame, the interior decoration can also be conveniently installed on the vehicle frame, and the arrangement of the manipulation control components of the electric vehicle is also very convenient.

3, the roof frame of the present invention can have two kinds of forms, has only front roof frame, or has front roof frame, connected frame and rear roof frame, and the former can be used as convertible electric vehicle, and the latter is used as closed structure electric vehicle, so vehicle frame The scope of application is wide.

Description of drawings

Fig. 1 is a structural schematic diagram of a specific embodiment of the present invention.

Detailed ways

Specific embodiment 1:

Referring to Fig. 1, the present embodiment is made of main frame 1, subframe 2 and top frame 3, and subframe 2 and top frame 3 are respectively fixedly connected on both sides and the top of main frame 1; main frame 1, The sub-frame 2 and the top frame 3 are respectively made of aluminum alloy profiles; the main frame 1, the sub-frame 2 and the top frame 3 are connected into a whole by welding to form a load-bearing lightweight frame.

In this example:

Main vehicle frame 1 is made of two parallel longitudinal girders 11, a longitudinal spine beam 17, a bench-like front axle 14 and a bench-like rear axle 15, and two transverse end support bars (12, 13); Four front bridge legs 141 of 14 are fixedly connected to the front end of the main beam 11, four rear bridge legs 151 of the rear bridge 15 are fixedly connected to the rear end of the main beam 11, and two transverse end support rods (12, 13) are connected to the main beam respectively. The front and rear ends of the beam 11 are fixedly connected, and the two ends of the longitudinal spine beam 17 are fixedly connected with the front axle 14 and the rear axle 15 respectively. The width of the front bridge deck 142 and the width of the rear bridge deck 152 are greater than the width of the longitudinal main girder 11. The main girder 11, the front bridge deck 142 and the rear bridge deck 152 constitute the main load-bearing structure of the power system and chassis parts, and various Instruments and consoles for vehicles. The main frame 1 is provided with a series of elastic supports or joints for fixedly installing battery packs, motors and other chassis components. In the middle of the two parallel longitudinal girders 11 of the main frame 1, a middle transverse support rod 16 is arranged, and the two ends of the longitudinal spine beam 17 are respectively fixedly connected with the front axle 14 and the rear axle 15, and the middle portion of the longitudinal spine beam 17 is connected with the rear axle 15. The middle lateral support bar 16 is fixedly connected.

The auxiliary frame 2 is composed of two auxiliary beams 21 parallel to the main beam 11 of the main frame, several cross bars 22 and several vertical bars 23; the two ends of the cross bars 22 are fixedly connected with the main beam 11 and the auxiliary beam 21 The two ends of the vertical bar 23 at the front are fixedly connected with the front axle 14 of the main frame 1 and the front end of the auxiliary beam 21 respectively, and the two ends of the vertical bar 23 at the rear are respectively connected with the rear axle 15 of the main frame 1 It is fixedly connected with the rear end of the secondary beam 21. A support structure is provided for the door by a vertical bar 23 .

Top frame 3 is made of front top frame 32, connecting frame 31 and rear top frame 33; The connecting frame 31 connects the front top frame 32 and the rear top frame 33 . The front top frame 32 and the rear top frame 33 are "∏" shaped, the front top frame 32 is fixedly connected on the front bridge deck 142 , and the rear top frame 33 is fixedly connected on the rear bridge deck 152 . The "∏" type front top frame 32 of the top frame 3 is slightly arched and inclined backward, and the two frames can be curved and gradually narrowed inward; the "∏" type rear top frame 33 can be slightly arched shape, the two borders can be curved and gradually narrowed inward.

The main beam 11 of the main frame 1 can be made of a square aluminum alloy or an I-shaped aluminum alloy; the subframe 2 and the top frame 3 can be made of an I-shaped aluminum alloy profile or an aluminum alloy profile with a closed cavity section. The "Π" type front top frame 32 and the "Π" type rear top frame 33 constitute the body protection bracket, and the body protection bracket is composed of aluminum alloy bars. The connection between the top frame 3 and the main frame 1 and the subframe 2 is a welded fixed connection.

Specific embodiment 2:

The characteristics of this embodiment are: the top frame 3 is formed by the front top frame 32, and the front top frame 32 is fixedly connected with the front end of the main frame; . All the other are with specific embodiment 1.

Specific embodiment 3:

The characteristics of this embodiment are: the connection between the top frame 3 and the main frame 1, and the connection between the top frame and the sub-frame 2 can be fastened and connected by easy-to-detach screws, and can constitute open-top and closed-type dual-purpose Electric car frame. All the other are with specific embodiment 1.

Other implementations:

The characteristics of other embodiments are: the bridge legs of the front and rear axles in the main frame 1 can be four, and can also be set to two, three, five or more than six according to needs; Alloy steel, or aluminum alloy steel, aluminum-magnesium alloy or aluminum-magnesium alloy steel. All the other are with specific embodiment 1 or specific embodiment 2 or specific embodiment 3.

Claims (6)

1. bearing type novel structure electric automobile frame is characterized in that:

1) be made of main car frame (1), subframe (2) and upper frame (3), subframe (2) and upper frame (3) are fixedly connected on the both sides and the top of main car frame (1) respectively; Main car frame (1), subframe (2) and upper frame (3) are made of aluminium alloy extrusions or are made of light-duty alloy steel section bar; Main car frame (1), subframe (2) and upper frame (3) are linked to be an integral body, form bearing-type lightweight vehicle frame by welding;

2) subframe (2) is made of two auxiliary girders (21) parallel with the girder (11) of main car frame, some cross bars (22) and some montants (23); Captive joint with auxiliary girder (21) with girder (11) respectively in the two ends of cross bar (22); Captiveing joint with the front end of auxiliary girder (21) with the propons of main car frame (1) respectively in the two ends that are positioned at anterior montant (23), captives joint with the rear end of auxiliary girder (21) with the back axle of main car frame (1) respectively in the two ends that are positioned at the montant (23) at rear portion.

2. a kind of bearing type novel structure electric automobile frame according to claim 1, it is characterized in that: main car frame (1) is made of two parallel longitudinal direction girders (11), a stool shape propons (14) and a stool shape back axle (15) and two transverse support bar (12,13); One of transverse support bar is captiveed joint with the front end of two girders (11), and two of transverse support bar is captiveed joint with the rear end of two girders (11); The bridge leg (141) of propons (14) is fixedly connected on the front end of girder (11), and the bridge leg (151) of back axle (15) is fixedly connected on the rear end of girder (11).

3. a kind of bearing type novel structure electric automobile frame according to claim 2, it is characterized in that: between two parallel longitudinal direction girders (11) of main car frame (1), be provided with a vertical vertebra beam (17), be provided with a middle part transverse support bar (16) at the middle part of two parallel longitudinal direction girders (11) of main car frame (1), vertically captive joint with back axle (15) with propons (14) respectively in the two ends of vertebra beam (17), and vertically captive joint with middle part transverse support bar (16) in the middle part of vertebra beam (17).

4. a kind of bearing type novel structure electric automobile frame according to claim 1 is characterized in that: upper frame (3) is made of preceding upper frame (32), and this preceding upper frame (32) is captiveed joint with the front end of main car frame (1); Perhaps constitute by preceding upper frame (32), frame linking (31) and back upper frame (33); Preceding upper frame (32) is captiveed joint with main car frame (1) with back upper frame (33), perhaps is fixedly connected on the replacement at the top of main car frame (1) as upper frame (3), and preceding upper frame (32) is captiveed joint with subframe (2) with main car frame (1) respectively with back upper frame (33); Upper frame (32) and back upper frame (33) before frame linking (31) connects.

5. according to the described a kind of bearing type novel structure electric automobile frame of the arbitrary claim of claim 1 to 4, it is characterized in that: main car frame (1) is provided with serial elastic support or connecting joint, is used for fixing power brick, motor and chassis part are installed.

6. a kind of bearing type novel structure electric automobile frame according to claim 4 is characterized in that: constitute the car door supporting construction by montant (23).

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