Summary of the invention
A kind of electric automobile chassis of the present invention; Gravity balance problem for the base plate that solves electric automobile chassis; The technical scheme that adopts is: comprise the base plate of supported cart body weight and girder construction in length and breadth in the structure; Midline position at the base plate of vehicle chassis is provided with middle longitudinal beam, and this girder construction is battery compartment or battery compartment tower structure.Main framing with the preceding transverse beam of installation forward mounting, the preceding transverse beam that rear-mounted back transverse beam, middle longitudinal beam both sides are installed and back transverse beam bonded assembly side longitudinal beam, their fixed one formation vehicles.Auxiliary girder, dividing plate, bumper/spoiler, backplate wait the chassis accessory structure to install on this basis or weld.Forward mounting, rear-mounted upper and lower is with the main framing activity or captive joint.Mounting vehicle base plate between middle longitudinal beam both sides and both sides side longitudinal beam is in order to mounting vehicle seat or freight house.
Summing up above main points invention main points of the present invention is: the battery compartment of vehicle rear and front end direction or the middle longitudinal beam that the battery compartment frame is used as vehicle chassis are set at the vehicle chassis center.And the design through storehouse formula transverse beam can be according to the direction machine or drive, the weight of passenger is regulated, counterweight, middle longitudinal beam, be fixed together with middle longitudinal beam before transverse beam and back transverse beam, be positioned in the both sides, the main framing that the hitch with preceding transverse beam and back transverse beam bonded assembly side longitudinal beam and before installing in transverse beam and the back transverse beam constitutes vehicle chassis of longitudinal beam.In one or more of longitudinal beam, preceding transverse beam, back transverse beam, side longitudinal beam be that lining adds that auxiliary material are strengthened or the compound type of stack.Also comprise auxilliary beam, dividing plate, bumper/spoiler, backplate in the main framing structure of vehicle chassis, above structure installing and locating on main framing.
Through above-mentioned solution: the middle longitudinal beam of electric automobile chassis is the effect of bearing the chassis girder incessantly, can use as high-capacity battery compartment or battery compartment frame, has utilized the not busy complementary space of base plate again, killing three birds with one stone.Realized the build-in attribute of electric automobile chassis, embodied inborn preceence, firm in structure being prone to made, and cost is low, and bearing capacity is high, but deadweight and lightweight.Because it is overlapping that the geometric center of gravity of the main weight of vehicle and vehicle realizes, the stationarity of going, handling, safety are that original car chassis is far incomparable.
The specific embodiment
A kind of electric automobile chassis comprises the base plate 7 of supported cart body weight and girder construction in length and breadth in the structure, key is: longitudinal beam 1 in the midline position of the base plate 7 of vehicle chassis is provided with, this girder construction is battery compartment or battery compartment tower structure.
Storehouse formula transverse beam 3A, 5A are set on base plate 7, are counterweight surge bunker or storehouse formula tower structure, storehouse formula transverse beam 3A, 5A and 1 square crossing of middle longitudinal beam are located by connecting and form the structure of vertical two horizontal strokes.Because vehicle chassis constantly will keep balance, especially when the design direction machine, because the general left side or the right that only can be arranged on front part of vehicle of direction machine.Vehicle floor 7 and middle longitudinal beam 1, preceding transverse beam 3 and back transverse beam 5 can be designed as " worker " word structure, " king " word structure, perhaps " Gui " word structure; Do not lift one's head in " Gui " word upper end; No matter which limit the direction machine is arranged on, and can guarantee that through battery being provided with in all battery compartments vehicle is all the time with respect to middle longitudinal beam 1 symmetrical balance.
Described storehouse formula transverse beam 3A, preceding transverse beam 3 and back transverse beam 5 that 5A comprises to be fixed together with middle longitudinal beam 1, between preceding transverse beam 3 and back transverse beam 5, the location, both sides of middle longitudinal beam 1 side longitudinal beam 6 is arranged and install before the be combined into one load-bearing main body structure of formation vehicle chassis of hitch and base plate 7 in transverse beam 3 and the back transverse beam 5.
Serve as a contrast at least one parts in middle longitudinal beam 1, preceding transverse beam 3, back transverse beam 5, the side longitudinal beam 6 and add the auxiliary material reinforcement.
The shape of cross section of middle longitudinal beam 1 is rectangle or circular or spill or convex.
The load-bearing main body structure of vehicle chassis also comprises auxilliary beam 10, dividing plate 8, bumper/spoiler 9 and backplate.
Comprise battery slide rail, battery to level sensor and shockproof latching device in the structure in the middle longitudinal beam 1, and be provided with supporting battery altering gangway.
The shape of cross section of storehouse formula transverse beam 3A, 5A is rectangle or circular or spill or convex, and inside is divided into 3-6 branch bin, is positioned at the both sides of middle longitudinal beam 1, and each bin independently is provided with to import and export and forms counterweight backup power memory storage.
The present invention in the specific implementation, the preceding transverse beam 3 and back transverse beam 5 bonded assembly side longitudinal beams 6 of middle longitudinal beam 1 and the preceding transverse beam 3 that forward mounting 2 is installed, the back transverse beam 5 that back suspension 4 is installed, middle longitudinal beam 1 both sides, their fixed one constitute the main framing of vehicle.Auxilliary beam 10, dividing plate 8, bumper/spoiler 9, backplate 11 wait the chassis accessory structure to install on this basis or weld.The upper and lower of forward mounting 2 back suspension 4 is with the main framing activity or captive joint.6 of the side longitudinal beams of middle longitudinal beam 1 both sides and both sides are installed base plate 7, in order to mounting vehicle seat or freight house.
So just can produce complete electric automobile chassis, the installation of car shell is installed auxilliary beam or carriage again according to different shapes, satisfies the chassis needs of different automobile types.Certainly Fig. 1 is the basic schematic form of embodiment, can be single entry like longeron, crossbeam, also can be many formulas or combined type.Also as middle longitudinal beam 1, be connected with 5 of the transverse beams in back or also be a kind of implementation of the present invention through assisting connection in preceding transverse beam 3.
A kind of electric automobile chassis in order to reduce the electronlmobil own wt, reaches purpose of energy saving more, can also be set to steel by the main framing material, and other material is an alloy metal material.Also can adopt other compound light materials such as carbon fiber, organic matter, inorganic matter.Specific embodiment is as shown in Figure 1: chassis accessory structures such as auxilliary beam 10, base plate 7, dividing plate 8, backplate adopt aluminum alloy materials.
Other is some little changes within the scope of the present invention, as: in vehicle center the battery compartment or the battery compartment frame of rear and front end direction are set, as the shape of the middle longitudinal beam 1 of vehicle can square bar formula, circle bar formula, solely beam type, concavo-convex abnormal shape; For making things convenient for the driver leg on the vehicle to move, the battery of device can be done at interval and lay in the middle longitudinal beam 1, is provided with etc. for spill here.