CN206076302U - Electric automobile chassis device - Google Patents

Abstract

A kind of electric automobile chassis device, including upper board component, honeycomb installation structure, lower board component and battery component；Upper board component includes cover plate and heat-conducting plate；Honeycomb installation structure includes multiple cellular units；Lower board component includes conflux circuit board and protective plate；Battery component includes multiple cells, quantity pedestal corresponding with cell and quantity electric connection part corresponding with cell；Each cell is contained in one cellular unit of correspondence；Each pedestal is contained in a corresponding cellular unit and is placed on outside a corresponding cell, and each is electrically connected with part and is arranged on one pedestal of correspondence；The negative pole end of multiple cells is contacted towards heat-conducting plate and with heat-conducting plate, and cover plate is arranged on heat-conducting plate；The corresponding pedestal of positive terminal perforation of each cell is resisted against and confluxes on circuit board；Protective plate is arranged at below the circuit board that confluxes.Originally it is new to improve energy density, strengthen radiating effect and realize without cable.

Description

Electric automobile chassis device

【Technical field】

This utility model is related to electric vehicle engineering field, more particularly to a kind of electric automobile chassis device.

【Background technology】

Under the pressure of energy crisis and problem of environmental pollution, safe and environment-friendly, energy-conservation has become the master of current development of automobile Topic, electric motor car are helped by the great attention of traffic, energy sector, in recent years, newly because of the free of contamination advantage of its energy-saving and environmental protection Energy automobile industry has welcome explosive growth.Battery is the core of electric automobile, in the horizontal bottleneck limit of existing battery technology Under system, by automobile chassis and battery bag merge integrated design again be it is following can the phase lifting car load energy density key skill Art.Existing electric vehicle chassis are mainly the orthodox car dynamical system such as removal of engine, carry on traditional automobile chassis Battery bag, is to meet battery bag standard, and often using thicker steel plate, battery bag does not fit within chassis design, becomes chassis Burden, the safety of battery core rely primarily on battery bag to ensure, the low space utilization on such chassis, integral rigidity are low, crashworthiness Can be poor, battery security is difficult to ensure that, chassis is laid particular stress on, and car load energy density is poor, and automobile course continuation mileage is short；Traditional electric motor car bottom Disk, in battery bag, circuit is complicated, and battery core is mainly fixed using welding and bolt, and stacking is complicated, difficult in maintenance；Current is electronic Chassis, battery core mainly passes through water-cooled and air-cooled two ways radiates, and water-cooling heat radiating system complexity is huge, reliability is low, effect Rate is low, the larger wind radiating of air-cooled main employing volume, it is difficult to ensure battery core samming soaking, have a strong impact on the battery core life-span.

Existing pure electric automobile chassis, chassis poor rigidity, chassis low space utilization, car load energy density are low, circuit System complex, battery core install complicated, cooling system efficiency and reliability is low, and course continuation mileage is short, and chassis collision performance is poor, battery core Between non-security isolation, not enough to battery core protection.

【Utility model content】

The purpose of this utility model is to provide one kind and battery and chassis is done Combined design, makes full use of chassis space, carries High chassis rigidity and crashworthiness；Appropriate design battery fixed form and cooling system, simplify circuit structure, realize circuit " without wire harness " is changed and battery core samming soaking, final to improve car load energy density, increases the electric automobile chassis dress of course continuation mileage Put.

To achieve these goals, this utility model provides a kind of electric automobile chassis device, including upper board component, honeycomb Installation structure, lower board component and battery component；The upper board component includes cover plate and heat-conducting plate；The honeycomb installation structure sets It is placed between the upper board component and the lower board component；The honeycomb installation structure includes multiple hollow cellular units；Institute Stating lower board component includes conflux circuit board and protective plate；The battery component includes multiple cells, quantity and cell Corresponding pedestal and quantity electric connection part corresponding with cell；Each cell includes a positive terminal and one The negative pole end opposite with positive terminal, each cell are contained in one cellular unit of correspondence；Each pedestal is contained in correspondence A cellular unit in and be placed on outside a corresponding cell, each be electrically connected with part be arranged at correspondence one pedestal On；The negative pole end of the plurality of cell is contacted towards the heat-conducting plate and with the heat-conducting plate, and the cover plate is arranged at institute State on heat-conducting plate；The positive terminal of each cell bore a hole corresponding pedestal be resisted against on the circuit board that confluxes and with the electricity that confluxes Road plate is electrically connected with；Each is electrically connected with the shell and the circuit board that confluxes that part is electrically connected with one cell of correspondence；Institute State protective plate to be arranged at below the circuit board that confluxes.

In a preferred embodiment, the circuit board that confluxes includes that positive pole confluxes and layer and confluxes on layer positioned at positive pole Negative pole confluxes layer；The negative pole layer that confluxes offers multiple vias, has a resilient conductive element, the elastic conducting in each via One end of electric part and positive pole conflux layer electric connection；Each via is corresponding with a corresponding cellular unit, the contact site of positive terminal It is resisted against on the resilient conductive element.

In a preferred embodiment, each pedestal offers a through hole, and each is electrically connected with part and is contained in correspondence In the through hole of one pedestal；Each is electrically connected with part includes the holding section of annular, multiple being electrically connected with from the extension of holding section side Haptic element and locating dowel；Each holding section for being electrically connected with part is stuck in the shell of one cell of correspondence and is electrically connected with shell Touch, be electrically connected with the conflux surface electrical behavior of layer of haptic element and negative pole and contact；The location hole corresponding matching of the locating dowel and cylinder manifold.

In a preferred embodiment, the heat-conducting plate is made up of phase-change material, and the phase-change material includes paraffin, height Density polyethylene and graphite.

In a preferred embodiment, the protective plate includes top board, base plate and is located at the top board and the base plate Between cushion；The top board is glass fibre polypropylene board；The base plate is aluminium alloy plate；The cushion is to include It is empty to house shell and load in housing the padded coaming in shell；The padded coaming is light foam aluminium alloy.

In a preferred embodiment, the upper board component also includes the first dividing plate, and first dividing plate offers many Individual first perforation, first dividing plate are arranged between the heat-conducting plate and the honeycomb installation structure, and each first perforation is right Ying Yuyi cellular unit, the negative pole end of each cell are contacted through corresponding one first perforation with the heat-conducting plate.

In a preferred embodiment, the lower board component also includes second partition, and the second partition offers many Individual second perforation, the second partition be arranged at it is described conflux between circuit board and the honeycomb installation structure, each second is worn Hole corresponds to a cellular unit；The positive terminal of each cell is through corresponding one second perforation and the circuit that confluxes Plate is contacted.

In a preferred embodiment, also including two pairs of bound edge side plates, the two corresponding bound edge side plate is around described Outside upper board component, honeycomb installation structure, lower board component and battery component.

In a preferred embodiment, also including a pair of collision prevention girders；It is described that collision prevention girders are stuck in the pair of bound edge side Outside plate, each anticollision curb girder includes rib and the buffer part positioned at rib one end；The rib is hollow irregular Honeycomb texture；The buffer part is hollow structure；The buffer part offers cooperation breach, and a pair of bound edge side plates are positioned at described Coordinate in breach；Foam aluminium alloy is filled with the rib and the buffer part.

In a preferred embodiment, the cellular unit is identical and six Pedicellus et Pericarpium Trapae columns of adjacent connection, the honeycomb list The quantity of unit is corresponded to or more than the quantity of cell；The pedestal is six Pedicellus et Pericarpium Trapae columns.

Battery and its management system and chassis Combined design are completely newly developed a pure electric chassis by this utility model, Chassis space is made full use of, chassis rigidity is lifted, increases crashworthiness, appropriate design battery core fixed form and cooling system, letter Change circuit structure, high to realizing chassis structure rigidity, crashworthiness is good, battery core samming soaking, circuit " without wire harness " are changed, battery core Install and safeguard that simple, car load energy density height, course continuation mileage are remote.

【Description of the drawings】

Fig. 1 combines signal with the solid of vehicle frame for the electric automobile chassis device that this utility model preferred implementation is provided Figure.

The electric automobile chassis device perspective exploded view that Fig. 2 is provided for this utility model preferred implementation.

The electric automobile chassis device solid combination partial view that Fig. 3 is provided for this utility model preferred implementation.

Fig. 4 is the partial enlarged drawing of the region A shown in Fig. 3.

Fig. 5 is the partial enlarged drawing of the region B shown in Fig. 3.

Fig. 6 is the partial enlarged drawing of the region C shown in Fig. 3.

Fig. 7 is the perspective exploded view of the subelement of the electric automobile chassis device shown in Fig. 2.

Fig. 8 is the schematic side view of the electric automobile chassis device shown in Fig. 1.

Fig. 9 is the partial schematic sectional view of the electric automobile chassis device shown in Fig. 3.

The cross section structure diagram of the protective plate of the electric automobile chassis device shown in Figure 10 Fig. 9

【Specific embodiment】

In order that the purpose of this utility model, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with attached Figure and specific embodiment, are further elaborated to this utility model.It should be appreciated that described in this specification Specific embodiment is not intended to limit this utility model just for the sake of explaining this utility model.

As shown in Figure 1, Figure 2 and shown in Fig. 9, a kind of electric automobile chassis device 100 that this utility model is provided, including upper plate group Part 10, honeycomb installation structure 20, lower board component 30 and battery component 40.The base apparatus 100 are installed on the vehicle frame 200 On.

The upper board component 10 includes cover plate 11 and heat-conducting plate 12.The honeycomb installation structure 20 is arranged at the upper plate group Between part 10 and the lower board component 30.The honeycomb installation structure 20 includes multiple identical and adjacent cellular unit 21. The lower board component 30 includes conflux circuit board 31 and protective plate 32.The battery component 40 includes multiple cells 41, number Amount electric connection part 43 corresponding with cell 41 with 41 corresponding pedestal 42 of cell and quantity.Each cell 41 include the negative pole end 412 opposite with positive terminal 411 of a positive terminal 411 and, and each cell 41 is contained in correspondence In one cellular unit 21.Each pedestal 42 offers a through hole 421, and each pedestal 42 is contained in a corresponding cellular unit In 21 and it is placed on outside a corresponding cell 41, each is electrically connected with part 43 and is arranged on one pedestal 42 of correspondence.It is described The negative pole end 411 of multiple cells 41 is contacted towards the heat-conducting plate 12 and with the heat-conducting plate 12, and the cover plate 11 is arranged On the heat-conducting plate 12.The through hole 421 of the perforation correspondence pedestal 42 of positive terminal 411 of each cell 41 is resisted against the electricity that confluxes It is electrically connected with road plate 31 and with the circuit board 31 that confluxes.Each is electrically connected with part 43 and is electrically connected with one cell of correspondence 41 shell 413 and the circuit board 31 that confluxes.The protective plate 32 is arranged at below the circuit board 31 that confluxes.

Specifically, Fig. 2 to Fig. 4 is referred to, the cover plate 11 and the honeycomb installation structure 20 pass through whole by aluminium alloy Body machining is made.Aluminium alloy can select light-high-strength aluminium alloy, and for example, its composition can be by following percentage by weight Each raw material composition：Fe：0.10～0.14%, Mn：0.03～0.04%, Si：0.02～0.04%, Ti：0.01～0.06%, B： 0.03～0.09%, Zn：2.2～2.9%, Mg：0.9～1.0%, Cu：1.1～1.3%, Ce：0.5～1.0%, Sc：0.1～ 0.4%, balance of Al, above aluminium alloy tensile strength can reach more than 700MPa.In present embodiment, the cover plate 11 is Rectangle, its upper surface form multiple reinforcement projections 111, for increasing the intensity of the cover plate 11.In other embodiments, institute The shape for stating upper cover plate 12 is not limited to rectangle.

The heat-conducting plate 12 be rectangle, shape corresponding to the cover plate 11 shape.The heat-conducting plate 12 can be by heat conduction The good insulant of property is made.The heat-conducting plate 12 can also be made up of phase-change material.The phase-change material can be paraffin, The composite phase-change material of the composition of high density polyethylene (HDPE) (HDPE) and graphite, in this composite phase-change material, phase-change material Paraffin has been distributed in the polymer network of HDPE.The network structure of HDEP can prevent endothermic dissolution into the paraffin of liquid from again Leak in condensation material.Therefore, needing to be packaged compared to conventional phase change material prevents material from becoming to be lost in after liquid, this Plant the intensity of the existing polythene material of composite phase-change material, it is also possible to overcome phase-change material to need the shortcoming of encapsulation, it might even be possible to Target moulding is fabricated directly into without encapsulation；And graphite then increased the heat conductivity of material so that heat can be faster Conducted and absorbed.

Fig. 3 and Fig. 5 is referred to, the honeycomb installation structure 20 can also may be used by above-mentioned aluminium alloy Jing extrusion process molding Made with the macromolecular material by high intensity high heat conduction, during the honeycomb installation structure 20 includes multiple identical and adjacent connection The empty cellular unit 21.Cellular unit 21 includes side wall 211, and the thickness of the side wall 211 is 1 to 2 millimeter.This embodiment party In formula, the cellular unit 21 is six Pedicellus et Pericarpium Trapae posts, the six Pedicellus et Pericarpium Trapaes post both ends open and side wall 211 is perpendicular to the cover plate 11.At other In embodiment, the cellular unit 21 can also be other regular shapes, for example, triangular prism, four Pedicellus et Pericarpium Trapae posts, five Pedicellus et Pericarpium Trapae posts, eight Pedicellus et Pericarpium Trapae post or cylinder etc..The honeycomb installation structure 20 also includes top surface 212 and the bottom surface 213 opposite with top surface 212, the top surface 212 and top surface 212 and the bottom surface 213 of the bottom surface 213 that is, the cellular unit 21.

The height of each cellular unit 21 corresponds to or is slightly less than the height of a cell 41, and cellular unit 21 is used for Cell 41 is housed, the quantity of cellular unit 21 can correspond to the quantity of cell 41, it is also possible to more than cell 41 quantity.When the quantity of the cellular unit 21 corresponds to the quantity of cell 41, each correspondence of cellular unit 21 is housed One cell 41.When the quantity of cellular unit 21 is more than the quantity of cell, a part of cellular unit 21 houses list Body battery, other parts cellular unit 21 can not house cell.All cellular units 21 can be identical with shape, Can be adjoined each other with difference, also can partly disconnect, or mutually be not connected with.For the ease of manufacture, in present embodiment, 21 shape of the cellular unit is identical and adjacent.

Refer to Fig. 3, Fig. 6 and Fig. 9, the circuit board 31 that confluxes includes that positive pole confluxes and layer 311 and confluxes layer positioned at positive pole Negative pole on 311 confluxes layer 312.The positive pole confluxes layer 311 and negative pole confluxes insulate between layer 312.The negative pole confluxes layer 311 offer multiple vias 313, have a resilient conductive element 314, one end of the resilient conductive element 314 in each via 313 It is electrically connected with the positive pole layer 311 that confluxes.Wherein each via 313 is corresponding with a corresponding cellular unit 21.

Fig. 9 and Figure 10 is referred to, the protective plate 32 includes top board 321, base plate 322 and is located at the top board 321 and institute State the cushion 323 between base plate 322.The top board 321 is glass fibre polypropylene board, with high intensity and good Insulating properties, by woven fiber cloth as reinforcement, used as matrix, the two Jing is warm for resin for the glass fibre polypropylene board The process combinings such as pressure are formed；The base plate 322 is aluminium alloy plate, the aluminium alloy plate light weight, intensity is high and antiseptic power is strong, Anti- penetration ability is excellent；Padded coaming is filled with the cushion 323, in present embodiment, during the cushion 323 includes It is empty to house shell 3231 and load in housing the padded coaming in shell 3231.In present embodiment, the padded coaming is light Matter foam aluminium alloy.

Each cell 41 is columned lithium battery.The positive terminal 411 as cell positive pole and have The contact site 4110 of projection, the negative pole end 412 as cell negative pole and for plane, the negative pole end 412 with it is single The columned shell 413 of body battery 41 is structure as a whole, i.e., shell 413 also serves as the negative pole of cell 41.

Fig. 6 and Fig. 7 is referred to, each pedestal 42 is made for six Pedicellus et Pericarpium Trapae posts of both ends open by insulant molding.Each base Six Pedicellus et Pericarpium Trapae posts of the six Pedicellus et Pericarpium Trapae column dimensions of seat 42 less than cellular unit, with this, each cellular unit 21 can just be placed on corresponding pedestal Outside 42, each pedestal 421 offers a through hole 421.Each be electrically connected with part 43 include annular holding section 431, it is multiple from What 431 side of holding section extended is electrically connected with haptic element 432 and locating dowel 433.

During assembling, the circuit board 31 that confluxes is arranged on the protective plate 32, both can be viscous by epoxy resin Knot or other modes are combined；Then each electric connection part 43 is contained in the through hole 421 of one pedestal 42 of correspondence, Pedestal 42 is loaded in corresponding cellular unit 21, wherein pedestal 42 is near the bottom surface 213 of the honeycomb installation structure 20；So Afterwards the negative pole that honeycomb installation structure 20 is positioned over the circuit 31 that confluxes is confluxed on layer 312, honeycomb installation structure 20 with it is described Confluxing circuit 31 can be resin-bonded by oxygen or other modes are combined, each cellular unit 21 and a via 313 It is corresponding；Again each cell 41 is loaded in one cellular unit 21 of correspondence, wherein all be contained in the cellular unit Cell 41 in 21 negative pole end 412 is towards same direction and is generally aligned in the same plane, i.e., near the top surface 212；Just Extreme 411 towards same direction, and near the bottom surface 213.The contact site 4110 of positive terminal 411 is through correspondence pedestal 42 Through hole 421 is resisted against on one resilient conductive element 314 of correspondence, the positive pole of such cell 41 by resilient conductive element 314 with The positive pole layer 311 that confluxes is electrically connected with.Each holding section 431 for being electrically connected with part 43 is stuck in the shell of one cell of correspondence 413 is outer and in electrical contact with shell, is electrically connected with the conflux contact point (not shown) on 312 surface of layer of haptic element 432 and negative pole and is electrically connected with Touch, the negative pole of such cell 41 is electrically connected with by the electric connection part 43 and negative pole layer 311 that confluxes.Addressed locating dowel 433 with 315 corresponding matching of location hole of the circuit board 30 that confluxes.Then the heat-conducting plate 12 is arranged at into the honeycomb installation structure On 20 top surface 212, the heat-conducting plate 12 and the honeycomb installation structure 20 can be by oxygen is resin-bonded or other modes group It is combined.The negative pole end 412 of each cell 41 is contacted with the heat-conducting plate 12.Finally cover plate 11 is arranged at described On heat-conducting plate 12, the cover plate 11 and the heat conduction 12 are with resin-bonded by oxygen or other modes are combined.

During use, all cells carry out connection in series-parallel group by arranging the circuit board that confluxes of the bottom surface of honeycomb installation structure Power into high-voltage battery group for dynamical system, when cell produces heat in discharge and recharge, as negative pole is plane, with Heat-conducting plate contact area is big, can conduct heat by heat-conducting plate rapidly.Other resilient conductive element and electric connection part Application eliminate using existing cable, maintain easily, reliability is high, can fuse when corresponding battery current is excessive, Using safer.

This utility model compares existing electric automobile chassis on the premise of Automobile Design intensity requirement is met, by electricity Combined design is done on Chi Bao and chassis, makes full use of chassis space, realize that battery chassis is light-weighted and meanwhile improve chassis rigidity with And crashworthiness；Cell is connected using plug-in, installs simple, and reliability is high；By security isolation between cell, The security performance of battery system and car load is improved further；Monomer passes through heat-conducting plate and the side wall of high heat conduction cellular unit is quick Ground conduction heat, it is ensured that battery core samming soaking, improves battery core service life.

Fig. 9 is referred to, further, the upper board component 10 can also include the first dividing plate 13, first dividing plate 13 Make by rectangle and by insulant.First dividing plate 13 offers multiple first perforation 131.It is in present embodiment, described Multiple first perforation 131 are in matrix distribution, and each bores a hole 131 for circular hole, and first dividing plate 13 is arranged at the heat-conducting plate Between 12 and the honeycomb installation structure 20, each first perforation 131 corresponds to a cellular unit 21.Each cell 41 Negative pole end 42 131 contact with the heat-conducting plate 12 through corresponding one first perforation.

Further, the lower board component 30 can also include second partition 33, the second partition 33 be rectangle and by Insulant is made.The second partition 33 offers multiple second perforation 331.In present embodiment, the plurality of second wears Hole 331 is in matrix distribution, and each bores a hole 331 for circular hole, and the second partition 33 is arranged at conflux circuit board 31 and the institute State between honeycomb installation structure 20, each second perforation 331 corresponds to a cellular unit 21.The positive pole of each cell 41 End 411 is contacted through corresponding one second perforation 331 with the circuit board 31 that confluxes.

Refer to Fig. 3, further, the electric automobile chassis device 100 also include two pairs of bound edge side plates 50, described two Correspondence bound edge side plate 50 is around outside the upper board component 10, honeycomb installation structure 20, lower board component 30 and battery component 40. Two pairs of bound edge side plates 50 can be made with steel and are mutually perpendicular to, and the bound edge side plate 50 can improve electric automobile chassis dress 100 intensity, stability are put, and the electric automobile chassis device 100 is conveniently installed.

Fig. 1,2 and 8 are referred to, further, the electric automobile chassis device 100 also includes a pair of collision prevention girders 60.Institute State and collision prevention girders 60 be stuck in outside the pair of bound edge side plate 50, the anticollision curb girder 20 by above-mentioned aluminium alloy Jing extrusion processes into Type, and each anticollision curb girder 60 includes rib 61 and the buffer part 62 positioned at 61 one end of rib.The rib 61 is sky The honeycomb texture of the heart.The buffer part 62 is hollow structure, and it is electric that the honeycomb texture of the rib 61 need not simultaneously house monomer Pond, therefore can be the honeycomb texture of rule, irregular honeycomb texture is may also be, in present embodiment, is irregular honeybee Nest structure.The buffer part 62 offers cooperation breach 621.One pair of which bound edge side plate 50 is located in the cooperation breach 621

In present embodiment, foam aluminium alloy in the rib 61 and the buffer part 62, is filled with.To improve institute State the resistance to impact of collision prevention girders 60.The foam aluminium-scandium alloy can select existing foam aluminium-scandium alloy, for example, a kind of foamed aluminium Close, matrix includes aluminum, calcium, scandium, and the mass fraction that wherein calcium accounts for aluminium alloy is 1.0%～4.5%, and scandium accounts for the quality hundred of aluminium alloy Fraction is 0.05%～0.40%.The preparation method of the foam aluminium alloy includes the following steps：First by the middle of fine aluminium and aluminum scandium Alloy (scandium accounts for scandium bearing master alloy mass percent for 1%～4%) is heated to fusing according to a certain ratio, adds equivalent to aluminum Alloy mass is 1.0%～4.5% calcium, stirs 3～15min；Secondly, make temperature in 660 DEG C～700 DEG C, stir； Add the foaming agent that the mass percent equivalent to aluminium alloy is 1%～4%, stirring, insulation so that aluminium alloy melt foam Change；Then, by foam aluminium alloy melt cooling, controlled porosity, the uniform closed-cell foam aluminium alloy of pore structure are obtained, it is finally right Closed-cell foam aluminium alloy makees appropriate heat treatment, obtains Light high-strength closed-cell foam aluminium alloy.

This utility model is not restricted to described in description and embodiment, therefore for the personnel of familiar field For be easily achieved additional advantage and modification, therefore in the general concept limited without departing substantially from claim and equivalency range Spirit and scope in the case of, this utility model be not limited to specific details, representational equipment and shown here as with retouch The examples shown stated.

Claims (10)

1. a kind of electric automobile chassis device, it is characterised in that：Including upper board component, honeycomb installation structure, lower board component and Battery component；The upper board component includes cover plate and heat-conducting plate；The honeycomb installation structure is arranged at the upper board component and institute State between lower board component；The honeycomb installation structure includes multiple hollow cellular units；The lower board component includes the electricity that confluxes Road plate and protective plate；The battery component include multiple cells, quantity pedestal corresponding with cell and quantity with The corresponding electric connection part of cell；Each cell includes a positive terminal and a negative pole opposite with positive terminal End, each cell are contained in one cellular unit of correspondence；Each pedestal be contained in a corresponding cellular unit and It is placed on outside a corresponding cell, each is electrically connected with part and is arranged on one pedestal of correspondence；The plurality of cell Negative pole end contact towards the heat-conducting plate and with the heat-conducting plate, the cover plate is arranged on the heat-conducting plate；Each monomer The corresponding pedestal of positive terminal perforation of battery is resisted against on the circuit board that confluxes and is electrically connected with the circuit board that confluxes；Each electricity Property connector be electrically connected with correspondence one cell shell and the circuit board that confluxes；The protective plate is arranged at the remittance Below current circuit plate.

2. electric automobile chassis device as claimed in claim 1, it is characterised in that：The circuit board that confluxes includes that positive pole confluxes Layer and the negative pole that confluxes on layer positioned at positive pole conflux layer；The negative pole layer that confluxes offers multiple vias, has in each via One resilient conductive element, one end of the resilient conductive element and positive pole conflux layer electric connection；Each via and a corresponding honeycomb Unit correspondence, the contact site of positive terminal are resisted against on the resilient conductive element.

3. electric automobile chassis device as claimed in claim 1, it is characterised in that：Each pedestal offers a through hole, often The individual part that is electrically connected with is contained in the through hole of one pedestal of correspondence；Each be electrically connected with part include annular holding section, it is multiple from What holding section side extended is electrically connected with haptic element and locating dowel；Each holding section for being electrically connected with part is stuck in one monomer electricity of correspondence The shell in pond is simultaneously in electrical contact with shell, is electrically connected with the conflux surface electrical behavior of layer of haptic element and negative pole and contacts；The locating dowel and remittance The location hole corresponding matching of stream plate.

4. electric automobile chassis device as claimed in claim 3, it is characterised in that：The heat-conducting plate is made up of phase-change material, The phase-change material includes paraffin, high density polyethylene (HDPE) and graphite.

5. electric automobile chassis device as claimed in claim 1, it is characterised in that：The protective plate include top board, base plate and Cushion between the top board and the base plate；The top board is glass fibre polypropylene board；The base plate is closed for aluminum Golden plate；The cushion is to include hollow collecting shell and load the padded coaming in collecting shell；The padded coaming is Light foam aluminium alloy.

6. electric automobile chassis device as claimed in claim 1, it is characterised in that：The upper board component also including first every Plate, first dividing plate offer multiple first perforation, and first dividing plate is arranged at the heat-conducting plate and is housed with the honeycomb Between structure, corresponding to a cellular unit, the negative pole end of each cell is through corresponding one for each first perforation One perforation is contacted with the heat-conducting plate.

7. electric automobile chassis device as claimed in claim 6, it is characterised in that：The lower board component also including second every Plate, the second partition offer multiple second perforation, and the second partition is arranged at conflux circuit board and the honeycomb Between installation structure, each second perforation is corresponding to a cellular unit；The positive terminal of each cell passes through corresponding one Individual second perforation and the circuit board contacts that conflux.

8. electric automobile chassis device as claimed in claim 1, it is characterised in that：Also including two pairs of bound edge side plates, described two Correspondence bound edge side plate is around outside the upper board component, honeycomb installation structure, lower board component and battery component.

9. electric automobile chassis device as claimed in claim 8, it is characterised in that：Also include a pair of collision prevention girders；Described pair is prevented Hit beam to be stuck in outside the pair of bound edge side plate, each anticollision curb girder includes rib and the buffer part positioned at rib one end；Institute It is hollow irregular honeycomb texture to state rib；The buffer part is hollow structure；The buffer part offers cooperation and lacks Mouthful, a pair of bound edge side plates are located in the cooperation breach；Foam aluminium alloy is filled with the rib and the buffer part.

10. electric automobile chassis device as claimed in claim 1, it is characterised in that：The cellular unit is identical and adjacent Connect six Pedicellus et Pericarpium Trapae columns, the quantity of the cellular unit is corresponded to or more than the quantity of cell；The pedestal is six Pedicellus et Pericarpium Trapae columns.