CN105128644B - A kind of arrangement of the power battery pack of distributed four-wheel In-wheel motor driving electric automobile - Google Patents
A kind of arrangement of the power battery pack of distributed four-wheel In-wheel motor driving electric automobile Download PDFInfo
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- CN105128644B CN105128644B CN201510632752.4A CN201510632752A CN105128644B CN 105128644 B CN105128644 B CN 105128644B CN 201510632752 A CN201510632752 A CN 201510632752A CN 105128644 B CN105128644 B CN 105128644B
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Abstract
The invention provides a kind of arrangement of the power battery pack of distributed four-wheel In-wheel motor driving electric automobile, the battery case is the space that closing is made up of preceding floor, rear floor, left sill strip, right sill strip, upper floor, lower floor.According to the parameter such as battery core and the arrangement demand of electrical equipment inside the arrangement demand of human engineering, body structure, the mounting structure of seat and electrokinetic cell, it is designed to that battery pack is laid between floor, lower floor, its bottom surface determines to ensure the related request that vehicle minimum ground clearance and ramp breakover angle meet entire vehicle design.The present invention is by reasonably arranging and simple fixed form, it ensure that power has maximized volume, it ensure that the utilization rate of electrokinetic cell inner space, be conducive to the reasonable distribution of axle load before and after vehicle, in addition, power battery pack and the attachment structure intensity of body of a motor car are high, improve the stability of power battery pack, are conducive to the stable operation of automobile.
Description
Technical field
The present invention relates to electric vehicle engineering field, more particularly to a kind of distributed four-wheel In-wheel motor driving electric automobile
Electrokinetic cell and the optimal layout constituted in the car.
Background technology
At present, with the Faced In Sustainable Development energy and the huge challenge of environmental problem of Global Auto industry, Ren Menkai
Begin to study replaces petrol engine to manufacture electric automobile with electric energy engine.The pure electronic vapour reequiped using orthodox car
Car, due to being limited to by existing vehicle, causes vehicle parts to be arranged unreasonable, system matches are difficult, car body weight is bigger than normal, have
Imitate riding space small, it is impossible to play the advantage of electric automobile；The body frame structure for automotive of place pure electric vehicle is excessively simple, and vehicle frame is overall
The rigidity of structure is low, and security is poor, it is difficult to reach the requirement of road vehicle；In addition, existing vehicle frame is all unfavorable for the group of electric automobile
Dress, is not suitable for the demand of development.
At present, the battery pack structure and body frame structure for automotive of main flow electric automobile often use the strategy of independent design, its shortcoming
Be electromobile frame and battery pack structure oeverall quality it is very big, while it is difficult to accomplishing the comprehensive guarantor to battery bag security performance
Shield.Cause electric automobile work long hours or crash event in, battery pack structure can not ensure the complete of battery unit
Property and security performance so that battery unit is easy to occur mutually extruding, cause the phenomenons such as battery destruction, battery spontaneous combustion.
Pure electric sedan will meet the dynamic property and continual mileage of vehicle, generally have enough battery cells to constitute many
Individual battery modules 12 finally set up into a battery system.Current driving force battery mainly uses lithium ion battery, and its energy is close
Degree is relatively low, and volume is typically than larger.So sufficiently large battery arrangement space is sought in vehicle body design, it is also simultaneous in addition
The structural strength and collision performance of vehicle body are turned round and look at, the structure for how designing battery case is the technical barrier faced at present.
At present, the layout type part of electrokinetic cell uses distributed arrangement, and polylith battery is fixed on into forward engine room, vehicle body
Floor lower section, boot lamp free space, this form are not easy to mount and dismount battery pack.While the battery and vehicle body of boot
Battery ambient temperature below floor is different, is not easy to the design of thermal management system of whole.If in addition, forward engine room or standby packing list
Solely arrangement battery can cause front and rear axle load skewness, and the control stability to vehicle produces harmful effect.
Other electrokinetic cell is arranged in body platform lower section, it is necessary to meet the arrangement demand of vehicle other systems, so that
The volume of electrokinetic cell is by very big restriction, especially to ensure reasonable minimum ground clearance that vehicle has, electrokinetic cell
Height be restricted, this volume to whole electrokinetic cell of height has a very big impact, and then influences electrokinetic cell storage
The course continuation mileage of energy and electric automobile.
The content of the invention
The purpose of the present invention is to design a kind of arrangement of distributed four-wheel In-wheel motor driving electric automobile power battery group
Structure, constructs a kind of battery case of novel concept, and electrokinetic cell can be optimized arrangement in the car, and battery volume can reach rationally
Maximization.
The technical solution adopted for the present invention to solve the technical problems is：A kind of electric automobile power battery group arrangement is provided
The arrangement of structure and power battery pack inside battery case, power battery pack is a part for vehicle frame, in vehicle frame
Between, the power battery pack be closed box shape framework, including be welded on vehicle body preceding floor, rear floor, left sill strip and
Right sill strip, the upper floor parallel to ground, the lower floor parallel to ground, sealing joint strip constitute the space closed.It is described dynamic
Power battery pack is internally provided with battery modules, battery management system, preliminary filling resistance, total positive relay, always bears relay, maintenance
Switch, electric connecting sheet, Hall sensor, low pressure plug connector, high pressure plug connector, battery modules support, point battery management system branch
Frame, Hall sensor support, first support, second support, across the first crossbeam between left sill strip and right sill strip and
Second cross beam, four longerons.
Preferably, the power battery box is in closed box shape, and power battery box includes being formed before box frame structure
Floor, rear floor and left sill strip, right sill strip and battery case are internally provided with two intermediate transverse girders, four longerons.
The power battery box is that a complete stress is overall with vehicle frame from amechanical angle, and the battery case can both be made
It is used for this body weight for carrying whole battery pack for the mounting structure of battery modules and electric elements, can be also used as electric automobile
The crossbeam and longitudinal beam structure of frame are used to carry the weight from vehicle body seat and occupant.
Preferably, preceding floor, rear floor, left sill strip, right sill strip are welded on vehicle body, it is ensured that battery bag it is strong
Degree.
Preferably, preceding floor, rear floor, left sill strip, the upper floor of plane correspondence is provided with bolt hole on right sill strip, internal
It is inlaid with blind nut.
Preferably, the upper floor is made up of first block of steel plate, second block of steel plate and the 3rd block of steel plate this three blocks of steel plates, steel
Plate is using intensity very high material, and equipped with strengthening measure.First block of steel plate and the 3rd block of steel plate are rectangle, second block of steel plate
Both sides have a flange, and four sides of first block of steel plate, second block of steel plate and the 3rd block of steel plate offer several bolts hole,
First block of steel plate, the 3rd block of steel plate are fitted at the flange of second block of steel plate, and blending bolt is fixed.
Preferably, the upper floor using sealing joint strip, be embedded in preceding floor, rear floor, left sill strip, in right sill strip
The blind nut and bolt in portion are fastenedly connected, and then battery case is sealed.
Preferably, the lower floor and preceding floor, rear floor, left sill strip, right sill strip weld together.
Preferably, two intermediate transverse girders are three independent spaces inside battery case, according to vehicle forward direction,
Hereinafter referred to as first row, second row, the 3rd row, are provided with lightening hole on crossbeam.Two crossbeams are mainly used in strengthening left and right door
Contact between sill, fixing seat and intentinonally panel stiffness, and for bearing side collision power, can effectively alleviate vehicle and touch
To the influence of electrokinetic cell when hitting, the security of electrokinetic cell is improved.
Preferably, the battery modules have 11, and wherein first row arranges 4 battery modules, and second row arranges 2 electricity
5 battery modules are put in pond module, the 3rd arrangement, and the lower section of each battery modules, which is set up, has one to be used for the battery of self-contained battery module
Module bracket, four angles of the lower section of each battery modules support offer bolt hole；The battery modules branch fixed in lower floor
Support seat relevant position is inlaid with blind nut, thus, utilizes bolt and the blind nut being embedded in inside battery modules support base
Carry out bolt connection and realize being fastenedly connected for battery modules.It can ensure that power battery module in vehicle operation because of vibration
Occurs the phenomenon of battery modules displacement, so as to ensure that the safe normal work of battery modules in whole battery case.
Preferably, the battery modules support base has 8.Four angles of each battery modules support base offer bolt
Blind nut is inlaid with hole, the bolt hole, by bolt and the blind nut of battery modules support base is embedded in by battery
Module is firmly fastened to battery modules support base, the position of the bolt hole and the position of size and the blind nut with it is big
It is small to match.Steel plate is processed into the battery modules support base with several closing trapezoid boss using bender.According to electricity
Diameter identical is opened in the arrangement requirement of pond module, and the corresponding position of bolt hole at four angles of battery modules support on support base
Bolt hole.Correspondence bolt hole inlays blind nut inside support base.
Preferably, the battery modules support base be welded to front panel, squab panel, left sill strip, right sill strip, under
On the correspondence position on floor.
Preferably, described pre-charge resistance, always total positive relay, negative relay, pre-charge-relay, heating relay
It is arranged in first row centre position, pre-charge resistance, always total positive relay, negative relay, pre-charge-relay, heating relay
Lower end Liang Ge angles be provided with bolt hole, lower floor fix the corresponding position of support be inlaid with blind nut, thus, utilize spiral shell
Bolt and the blind nut that is embedded in inside first support carry out bolt connection realize pre-charge resistance, total positive relay, it is total it is negative after
Electrical equipment, pre-charge-relay, heating relay are fastenedly connected.
Preferably, the Hall sensor is arranged on the position in the middle of first row, and the edge of Hall sensor is reserved with
Bolt hole.The Hall sensor support is welded in first support.Staking is inlaid with Hall sensor support relevant position
Nut, thus, carries out bolt connection using bolt and the blind nut being embedded on Hall sensor support and realizes hall sensing
Device is fastenedly connected.
Preferably, the service switch is arranged on the position of second row, and the angle of service switch lower end four is reserved with bolt
Hole, with the service switch support for fixing service switch, (that is, service switch support and service switch are service switch itself
One) it cannot be fixed on lower floor due to service switch support, it is all to be provided with a second support.In second support phase
Answer position to be inlaid with blind nut, thus, carry out bolt connection using bolt and the blind nut being embedded on support and realize dimension
Repair being fastenedly connected for switch.
Preferably, the second support is welded on lower floor.
Preferably, the battery management system is fixed on the position in the middle of second row, and battery management system is divided into one
Master battery management system and three points of battery management systems.Four angles of master battery management system lower plane are reserved with bolt hole,
Correspondence position is provided with bolt hole on crossbeam, and blind nut is inlaid with the inside of crossbeam, thus, using bolt with being embedded in crossbeam
Being fastenedly connected for master battery management system is realized in internal blind nut connection.
Preferably, described point of battery management system support is that steel plate is processed L-shaped using bender.Divide battery management system
Four angles of system lower plane are reserved with bolt hole, are inlaid with blind nut in a point battery management system cradle back, thus, utilize spiral shell
Bolt is connected being fastenedly connected for realization point battery management system with being embedded in the blind nut of battery management system cradle back.
Preferably, described point of battery management system support is welded on lower floor.
Preferably, heating unit is additionally provided with inside the battery case, heating uses heating film, and heating film is arranged in
Between battery modules and lower floor.
Preferably, vibration absorption unit is additionally provided with inside the battery case, vibration absorption unit uses shock absorbing foam plate, damping
Cystosepiment is arranged between battery modules and lower floor, starts the effect such as damping, heat-insulated.
Preferably, insulation measures are additionally provided with inside the battery case, insulated paint are all sprayed with inside battery case, in addition
Insulation board is disposed between battery modules and lower floor, for separating power battery module and lower floor.
Because electrokinetic cell operationally has certain expansion, it is therefore desirable to be reserved between battery modules it is enough between
Gap.Gap size between the battery modules is in zone of reasonableness.The battery modules and between the sill strip of left and right between
Gap in zone of reasonableness, prevents side impact from causing the ability enhancing of electrokinetic cell short circuit.Described battery modules and upper floor
Between gap in zone of reasonableness.Contacted to prevent upper floor with battery electrode column and cause short circuit.
The solution have the advantages that：Battery pack structure and body frame structure for automotive use the strategy of integrated design, realize car
The lightweight of frame and battery pack structure, improves the continual mileage of electric automobile to a certain extent, it is ensured that the peace of battery bag
Full performance.
The arrangement of electrokinetic cell disclosed by the invention, while vehicle other systems reasonable Arrangement is met, fully
Upper floor, the space of lower floor, it is ensured that electrokinetic cell has maximized volume, making the course continuation mileage of vehicle has significantly
Improve.
Battery pack is laid between upper floor, lower floor, is conducive to the reasonable distribution of axle load before and after vehicle, compared to it
It is more reasonable that he is laid out, and reduces the probability that collision triggers short circuit so that electric automobile is safer under the extreme case of collision.
The present invention is by compact battery modules arrangement architecture and reasonably arranges each electric elements, saves power electric
Being taken up space for pond, can be such that battery system is arranged in the limited space of vehicle more flexibly, improve assembling capacity and peace
Quan Xing, improves vehicle performance to a certain extent.
The present invention is using centralization installation so that distance is short between battery modules, easy to connect between battery modules, wiring
It is clear, compared with the probability that short lead reduces electric leakage.
The arrangement reasonable of the electrokinetic cell of the present invention, improves the charge-discharge performance of electrokinetic cell, Jin Erti
The high performance of electric automobile, life-span and security, make the dynamic characteristic of electric automobile be in rational scope.
Brief description of the drawings
Fig. 1 is the electrokinetic cell layout schematic top plan view of the arrangement of electrokinetic cell of the present invention；
Fig. 2A and Fig. 2 B are battery case vertical view, the schematic side view of the arrangement of electrokinetic cell of the present invention；
Fig. 3 A figures, 3B figures and Fig. 3 C are the Shangdi plate structure schematic diagrams of the arrangement of electrokinetic cell of the present invention；
Fig. 4 is the lower floor structural representation of the arrangement of electrokinetic cell of the present invention；
Fig. 5 is the battery modules clamping support schematic diagram of the arrangement of electrokinetic cell of the present invention；
Fig. 6 is the first support schematic diagram of the arrangement of electrokinetic cell of the present invention；
Fig. 7 is the Hall sensor support schematic diagram of the arrangement of electrokinetic cell of the present invention；
Fig. 8 is the second support schematic diagram of the arrangement of electrokinetic cell of the present invention；
Fig. 9 is point battery management system support schematic diagram of the arrangement of electrokinetic cell of the present invention.
Description of reference numerals is as follows：
Heat relay 1, always negative relay 2, pre-charge-relay 3, total positive relay 4, preceding floor 5, Hall sensor
6th, between preliminary filling resistance 7, module the gap 9 between gap 8, module and left and right sill strip, module support seat 10, left sill strip
11st, battery modules 12, battery modules support 13, first crossbeam 14, service switch 15, fuse 16, second cross beam 17, heating are single
Member 18, vibration absorption unit, insulating unit, rear floor 19, master battery management system 20, point battery management system 21, the 3rd row 22, the
Two rows 23, first row 24, right sill strip 25, Hall sensor support 26, point battery management system support 27, lower floor 28, on
First piece 29 of floor, first support 30, second piece 31 of upper floor, second support 32, the 3rd piece 33 of upper floor.
Embodiment
In description of the invention, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ", in " afterwards ", "
", " " orientation or position relationship for waiting instruction are, based on orientation shown in the drawings or position relationship, to be for only for ease of description originally outside
Invention and simplified description, rather than instruction or the signified device of hint or element must be with specific orientation, with specific square
Position construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second ", " the 3rd " it is only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.
A kind of distributed four-wheel In-wheel motor driving electric powered motor electricity of the present invention is described in detail with reference to the accompanying drawings
The arrangement of pond group.
As shown in figure 1, the present invention provides a kind of electric automobile power battery group arrangement and power battery pack in electricity
Arrangement inside the case of pond, power battery box is a part for vehicle frame, positioned at central frame beam, and the power battery pack is closing
Case shape framework, including be welded on vehicle body preceding floor 5, rear floor 19, left sill strip 11 and right sill strip 25, parallel to ground
The upper floor 29 in face, 31,33, the lower floor 28 parallel to ground, sealing joint strip (not shown) constitute the space closed；Institute
State power battery pack be internally provided with battery modules 12, battery management system (not shown), preliminary filling resistance 7, it is total just after
Electrical equipment 4, always negative relay 2, service switch 15, electric connecting sheet (not shown), Hall sensor 6, low pressure plug connector are (in figure
It is not shown), high pressure plug connector (not shown), battery modules support 13, point battery management system support 27, Hall sensor
Support 26, first crossbeam 14 and second cross beam 17 across between left sill strip 11 and right sill strip 25, four longerons.
As shown in Fig. 1 and Fig. 2A and Fig. 2 B, power battery box is a part for vehicle frame, positioned at central frame beam, in case shape,
Battery case is made up of preceding floor 5, rear floor 19, left sill strip 11, right sill strip 25, upper floor, lower floor 28, sealing joint strip
The space of closing.Upper floor, lower floor 28 are parallel to ground.The support base and support of arrangement include battery modules inside battery case
Support base 10, point battery management system support 27, Hall sensor support 26, first support 30, second support 32 etc., battery case
It is internally provided with two crossbeams, four longerons (being not drawn into figure).Lower floor 28 and preceding floor 5, rear floor 19, left sill strip
11st, right sill strip 25 welds together.
As shown in Fig. 1 and 2 A and Fig. 2 B, the power battery box is a complete stress with vehicle frame from amechanical angle
Overall, the battery case can both be used for the body for carrying whole battery pack as the mounting structure of battery modules 12 and electric elements
Weight, also can be used to carry the weight from vehicle body seat and occupant as the crossbeam and longitudinal beam structure of electric automobile frame.
As shown in Fig. 1 and Fig. 2A and Fig. 2 B and Fig. 4, power battery box is in closed box shape, and power battery box includes being formed
Preceding floor 5, rear floor 19 and the left sill strip 11 of box frame structure, right sill strip 25 and battery case are internally provided with two
Intermediate transverse girder, four longerons.The Battery case surfaces externally and internally all carries out plastic-spraying processing and complete with the insulating materials of acid and alkali resistance
Covering.Insulation meets every clause that 6 require prevention of electric shock mode in standard GB/T 18384.3.In addition, in battery mould
Insulation board is disposed between group 12 and lower floor 28, for separating power battery module 12 and lower floor 28.Inside battery case also
Heating unit 18 is provided with, heating uses heating film, and heating film is arranged between battery modules 12 and lower floor 28.Battery
Vibration absorption unit is additionally provided with inside case, vibration absorption unit uses shock absorbing foam plate, and shock absorbing foam plate is arranged in battery modules 12
Between lower floor 28, the effect such as damping, heat-insulated is started.
As shown in Fig. 1 and Fig. 2A and Fig. 2 B, preceding floor 5, rear floor 19, left sill strip 11, right sill strip 25, car is welded on
With, it is ensured that the intensity of battery bag.Preceding floor 5, rear floor 19, left sill strip 11, the upper floor of plane correspondence on right sill strip
Bolt hole (being not drawn into figure) is provided with, inside is inlaid with blind nut.(being not drawn into figure)
As shown in Fig. 3 A figures, 3B figures and Fig. 3 C, the upper floor be made up of three blocks of steel plates, and steel plate uses intensity very high material
Material, and equipped with strengthening measure.Flange processing is done in second piece of steel plate both sides using bender, is conducive to three pieces of the close of steel plate to connect
Connect.Three blocks of steel plates, four sides are provided with several bolts hole.Enough gaps are left between upper floor and battery top pole, and
And insulation is separated with epoxy resin bonded fiber, contacted to prevent upper floor with battery electrode column and cause short circuit.
As shown in Fig. 3 A figures, 3B figures and Fig. 3 C, upper floor using sealing joint strip, be embedded in preceding floor 5, it is rear floor 19, left
Blind nut and bolt inside sill strip 11, right sill strip 25 are fastenedly connected, and then battery case is sealed.
As shown in Figure 2 A and 2 B, two intermediate transverse girders are three independent spaces inside battery case, according to vehicle forward
Direction, hereinafter referred to as first row 24, second row 23, the 3rd row 22 are provided with lightening hole on crossbeam.Two crossbeam is mainly used
Contact between left and right threshold is strengthened, fixing seat and intentinonally panel stiffness, and for bearing side collision power, can be effective
Influence during ground alleviation complete automobile collision to electrokinetic cell, improves the security of electrokinetic cell.
As shown in Figure 1, Figure 2 shown in A and Fig. 2 B and Fig. 5, battery modules 12 have 11, and wherein first row 24 arranges 4 modules,
Second row 23 arranges 2 modules, and the 3rd row 22 arranges 5 modules, and each 13 4 Angle Positions of battery modules support are provided with bolt
Hole, the relevant position of battery modules support base 10 fixed in lower floor 28 is inlaid with blind nut, thus, using bolt with inlaying
Blind nut inside battery modules support base 10 carries out bolt connection and realizes being fastenedly connected for battery modules 12.Battery modules
Between gap 9 of the size of gap 8 between zone of reasonableness, battery modules and left and right sill strip in zone of reasonableness.Can be true
The phenomenon that the displacement of battery modules 12 occurs in vehicle operation because of vibration for power battery module 12 is protected, so as to ensure that whole
The safe normal work of battery modules 12 in individual battery case.
As shown in Fig. 1, Fig. 3 A figures, 3B figures and Fig. 3 C and Fig. 5, battery modules support base 10 has 8.Utilize bender handle
Steel plate is processed into the battery modules support base 10 with several closing trapezoid boss.According to the arrangement requirement of battery modules 12,
Diameter identical bolt hole is opened on support base in position corresponding with the bolt hole at 13 4 angles of battery modules support.In support base
Inside correspondence bolt hole inlays blind nut.Battery modules support base 10 is welded to front panel, squab panel, left sill strip
11st, right sill strip 25, on the correspondence position of lower floor 28.
As shown in Figure 1, Figure 2 shown in A and Fig. 2 B, Fig. 6, pre-charge resistance, total positive relay 4, always negative relay 2, be pre-charged after
Electrical equipment 3, heating relay 1 are arranged in first row centre position, pre-charge resistance, always total positive relay 4, negative relay 2, preliminary filling
Electrical relay 3, the lower end Liang Ge angles of heating relay 1 are provided with bolt hole, and the first support 30 fixed in lower floor 28 is corresponding
Position is inlaid with blind nut, thus, and bolt connection is carried out using bolt and the blind nut being embedded in inside first support 30
Pre-charge resistance, total positive relay 4 are realized, relay 2, pre-charge-relay 3 is always born, heats being fastenedly connected for relay 1.
As shown in Figure 1 and Figure 7, Hall sensor 6 is arranged on the position in the middle of first row, the edge of Hall sensor 6
Bolt hole is reserved with, blind nut is inlaid with the relevant position of Hall sensor support 26, thus, using bolt with being embedded in suddenly
Blind nut on your sensor stand 26 carries out bolt connection and realizes being fastenedly connected for Hall sensor 6.Hall sensor branch
Frame 26 is welded in first support 30.
As shown in Figure 1, Figure 2 shown in A and Fig. 2 B and Fig. 8, service switch 15 is arranged on the position of second row, under service switch 15
Four angles in end are reserved with bolt hole, blind nut are inlaid with the relevant position of second support 32, service switch 15 itself is with useful
In the service switch support (that is, service switch support and service switch are integral) of fixed service switch 15, because maintenance is opened
Closing support cannot fix on lower floor, so a there is provided second support.Thus, using bolt with being embedded on support
Blind nut carries out bolt connection and realizes being fastenedly connected for service switch 15.Second support 32 is welded on lower floor 28.
As shown in Figure 1, Figure 2 shown in A and Fig. 2 B and Fig. 9, battery management system is fixed on the position in the middle of second row, cell tube
Reason system is divided into a master battery management system 20 and three points of battery management systems 21.The lower plane four of master battery management system 20
Individual angle is reserved with bolt hole, and correspondence position is provided with bolt hole (being not drawn into figure) on crossbeam, and drawing is inlaid with the inside of crossbeam
Riveting nut (is not drawn into) in figure.Thus, it is connected using bolt with the blind nut being embedded in inside crossbeam and realizes that main battery is managed
System 20 is fastenedly connected.It is that steel plate is processed L-shaped using bender to divide battery management system support 27.Divide battery management system
21 lower plane, four angles of uniting are reserved with bolt hole, and blind nut is inlaid with point back side of battery management system support 27, thus, profit
The fastening of realization point battery management system 21 is connected with being embedded in the blind nut at the back side of battery management system support 27 with bolt
Connection.Battery management system support 27 is divided to be welded on lower floor 28.
A kind of arrangement of the distributed four-wheel In-wheel motor driving electric automobile power battery group provided above the present invention
The arrangement of structure and electrokinetic cell inside battery case is described in detail, and specific case used herein is to the present invention
Principle and embodiment be set forth, be only used for help and understand core concept of the present invention, it is all to belong under thinking of the present invention
Technical scheme belongs to protection scope of the present invention.It should be pointed out that for the art designer, not departing from this
Some improvement projects under the premise of inventive principle, (such as by changing the spread pattern of power battery module 12 so as to reaching expansion
With reducing power battery module quantity purpose and the thus change or proposition one of vehicle frame mechanical structure caused by spread pattern
Plant the fixed supporting seat based on similar structures, fixed support etc.) protection scope of the present invention should be considered as.
Claims (9)
1. a kind of arrangement of the power battery pack of distributed four-wheel In-wheel motor driving electric automobile, it is characterised in that institute
Power battery pack is stated for closed box shape framework, including be welded on vehicle body preceding floor (5), rear floor (19), left sill strip
And right sill strip (25), the upper floor (29,31,33) parallel to ground, lower floor (28), fluid sealant parallel to ground (11)
Bar；The power battery pack is internally provided with battery modules (12), battery management system, preliminary filling resistance (7), total positive relay
(4), always bear relay (2), service switch (15), electric connecting sheet, Hall sensor (6), low pressure plug connector, high pressure plug connector,
Battery modules support (13), point battery management system support (27), Hall sensor support (26), first support (30), second
Support (32), across the first crossbeam (14) between left sill strip (11) and right sill strip (25) and second cross beam (17), four
Bar longeron；Wherein,
Preceding floor (5), rear floor (19), left sill strip (11) the upper floor corresponding with the upper plane of right sill strip (25) are opened up
Have and be inlaid with blind nut inside bolt hole, bolt hole；The upper floor is embedded in preceding floor (5), afterwards by sealing joint strip
The internal blind nut of plate (19), left sill strip (11) and right sill strip (25) and bolt are securely connected, lower floor (28)
It is welded on the lower section of preceding floor (5), rear floor (19), left sill strip (11) and right sill strip (25)；And then battery case is carried out
Sealing；
Battery modules support base (10) has been fixedly disposed on lower floor (28)；
The closed box shape framework is divided into three separate spaces by first crossbeam (14) and second cross beam (17), and described three solely
Vertical space is divided into first row (24), second row (23) and the 3rd row (22) according to vehicle forward direction, in first crossbeam (14)
Lightening hole is provided with second cross beam (17)；First row (24) is disposed with 4 battery modules (12), and second row (23) is disposed with
2 battery modules (12), the 3rd row (22) is disposed with 5 battery modules (12)；
The lower section of each battery modules (12), which is set up, has one to be used for the battery modules support (13) of self-contained battery module (12), each
Four angles of the lower section of battery modules support offer bolt hole；
Preliminary filling resistance (7), always total positive relay (4), negative relay (2), pre-charge-relay (3) and heating relay (1) cloth
Put the centre position in first row (24)；
First support (30) is set up on the centre position of first row (24), and first support is inlaid with blind nut on (30), is led to
Cross bolt and blind nut by preliminary filling resistance (7), total positive relay (4), always bear relay (2), pre-charge-relay (3) and plus
Electrothermal relay (1) is securely connected；
Second support (32) is welded on lower floor (28), and is set up on the position of second row, and service switch (15) is arranged in
Second support (on 32)；
Hall sensor support (26) is set up in first support (30), and Hall sensor (6) is arranged in Hall sensor support
(26) on, the edge preset of Hall sensor (6) has bolt hole, and blind nut is inlaid with Hall sensor support (26),
Hall sensor (6) is securely connected with blind nut by bolt；
Divide battery management system support (27) L-shaped, a point battery management system support (27) is welded on lower floor (28),
The battery management system is fixed on the centre position of second row (23).
2. arrangement according to claim 1, it is characterised in that the upper floor is by first block of steel plate, second block of steel
Plate and the 3rd piece of steel plate composition, first block of steel plate and the 3rd block of steel plate are rectangle, and second piece of steel plate both sides has a flange, the
Four sides of one block of steel plate, second block of steel plate and the 3rd block of steel plate offer several bolts hole, first block of steel plate, the 3rd piece
Steel plate is fitted at the flange of second block of steel plate, and blending bolt is fixed.
3. arrangement according to claim 1, it is characterised in that battery modules support base (10) is trapezoidal convex in closing
Platform, has 8；Four angles of each battery modules support base (10), which are offered in bolt hole, bolt hole, is inlaid with blind nut,
By bolt and it is embedded in the blind nut of battery modules support base (10) by battery modules (12) and is firmly fastened to battery mould
Group support base (10), the position of bolt hole matches with the position of size and blind nut with size.
4. arrangement according to claim 3, it is characterised in that four angles of the lower end of service switch (15) are preset with
Bolt hole, service switch (15) itself is carried in the service switch support for being used for fixing service switch (15), second support (32)
Blind nut is inlaid with, is securely connected service switch (15) with blind nut by bolt.
5. arrangement according to claim 1, it is characterised in that preliminary filling resistance (7), total positive relay (4), it is total it is negative after
The lower end of electrical equipment (2), pre-charge-relay (3) and heating relay (1) respectively offers bolt hole at two angles.
6. arrangement according to claim 1, it is characterised in that battery management system is divided into a main battery management system
System (20) and three points of battery management systems (21)；Wherein, four angles of master battery management system (20) lower plane are preset with spiral shell
Keyhole, offers in bolt hole, bolt hole on first crossbeam and second cross beam and is inlaid with blind nut, pass through bolt and staking
Nut securely connects master battery management system (20)；Four angles of battery management system (21) lower plane are divided to be preset with bolt
Hole, blind nut is inlaid with the back side of point battery management system support (27), by bolt with being embedded in a point battery management system
The blind nut at system support (27) back side securely connects a point battery management system (21).
7. according to any described arrangement of claim 1~6, it is characterised in that be additionally provided with and add inside the battery case
Hot cell (18), heating unit (18) is heating film, and heating film is arranged between battery modules (12) and lower floor (28).
8. according to any described arrangement of claim 1~6, it is characterised in that be additionally provided with and subtract inside the battery case
Unit is shaken, the vibration absorption unit is shock absorbing foam plate, and shock absorbing foam plate is arranged between battery modules (12) and lower floor (28),
To play damping, heat-blocking action.
9. according to any described arrangement of claim 1~6, it is characterised in that be additionally provided with inside the battery case absolutely
Edge part, is all sprayed with insulated paint inside battery case, and insulation board is disposed between battery modules (12) and lower floor (28),
To separate battery modules (12) and lower floor (28).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510632752.4A CN105128644B (en) | 2015-09-29 | 2015-09-29 | A kind of arrangement of the power battery pack of distributed four-wheel In-wheel motor driving electric automobile |
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| CN201510632752.4A CN105128644B (en) | 2015-09-29 | 2015-09-29 | A kind of arrangement of the power battery pack of distributed four-wheel In-wheel motor driving electric automobile |
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| CN105128644A CN105128644A (en) | 2015-12-09 |
| CN105128644B true CN105128644B (en) | 2017-08-22 |
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| CN105947235B (en) | 2016-05-10 | 2017-05-17 | 国防科学技术大学 | Electric energy and mechanical environment management multifunctional structure |
| CN107972747B (en) * | 2017-12-11 | 2023-12-19 | 北京新能源汽车股份有限公司 | Floor assembly and electric automobile |
| CN107985423A (en) * | 2017-12-11 | 2018-05-04 | 北京新能源汽车股份有限公司 | Floor, floor panel assembly and electric automobile |
| JP7070386B2 (en) * | 2018-12-11 | 2022-05-18 | トヨタ自動車株式会社 | Stack frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205044508U (en) * | 2015-09-29 | 2016-02-24 | 北京理工大学 | Arrangement structure of distributing type four -wheel in -wheel motor driving electric automobile's power battery group |
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| DE4412453A1 (en) * | 1994-04-12 | 1995-10-26 | Daimler Benz Ag | Arrangement of a drive unit in an electric vehicle |
| JP5098544B2 (en) * | 2007-09-28 | 2012-12-12 | 三菱自動車工業株式会社 | Battery unit |
| JP5029263B2 (en) * | 2007-09-28 | 2012-09-19 | 三菱自動車工業株式会社 | Electric car |
| JP4787279B2 (en) * | 2008-01-31 | 2011-10-05 | 三菱自動車工業株式会社 | Battery module case and method of using battery module case |
| MY160128A (en) * | 2009-02-24 | 2017-02-28 | Nissan Motor | Battery mounting structure |
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| CN205044508U (en) * | 2015-09-29 | 2016-02-24 | 北京理工大学 | Arrangement structure of distributing type four -wheel in -wheel motor driving electric automobile's power battery group |
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