CN113752811A - Electric vehicle chassis and electric vehicle - Google Patents
Electric vehicle chassis and electric vehicle Download PDFInfo
- Publication number
- CN113752811A CN113752811A CN202111007437.4A CN202111007437A CN113752811A CN 113752811 A CN113752811 A CN 113752811A CN 202111007437 A CN202111007437 A CN 202111007437A CN 113752811 A CN113752811 A CN 113752811A
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- China
- Prior art keywords
- battery
- frame
- electric vehicle
- vehicle chassis
- battery pack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides an electric vehicle chassis and an electric vehicle, the electric vehicle chassis comprises: the device comprises a battery frame, a telescopic mechanism and a frame; the battery frame is used for arranging a plurality of battery packs, the battery frame is provided with a mounting surface facing the frame, and one side of the frame facing the battery frame is provided with a mounting part; the telescopic mechanism is arranged on the mounting surface, the battery frame is connected with the frame under the condition that the mounting part is positioned between the free end of the telescopic mechanism and the mounting surface, and the battery frame is separated from the frame under the condition that the free end of the telescopic mechanism is separated from the mounting part. According to the electric vehicle chassis, the battery frame is arranged below the vehicle frame, the connection and the separation of the battery frame and the vehicle frame are realized through the telescopic motion of the telescopic mechanism, and the convenience of replacing the battery pack is improved.
Description
Technical Field
The invention relates to the technical field of electric vehicles, in particular to an electric vehicle chassis and an electric vehicle.
Background
With the development of new energy technology, the electric vehicle has the advantages of zero pollution, low noise, small dependence on fossil energy and the like, and is widely applied.
The existing electric vehicle mostly adopts a back-type battery replacement mode or a top-lifting battery replacement mode to place a battery pack, for example, the battery pack is arranged on a chassis at the rear side of a cab, and the back battery replacement structure is complex and the battery pack is inconvenient to replace; the battery replacement by hoisting the top is realized by hoisting the battery frame above the vehicle, the battery frame needs to be lifted to a higher position, the battery pack is inconvenient to replace, and meanwhile, the danger of battery replacement is increased.
Disclosure of Invention
The invention provides an electric vehicle chassis and an electric vehicle, which are used for solving the problems that the battery frame layout of the existing electric vehicle chassis is unreasonable and the battery pack is inconvenient to replace.
The present invention provides an electric vehicle chassis, comprising: the device comprises a battery frame, a telescopic mechanism and a frame;
the battery frame is used for arranging a plurality of battery packs, the battery frame is provided with a mounting surface facing the frame, and one side of the frame facing the battery frame is provided with a mounting part;
the telescopic mechanism is arranged on the mounting surface, the battery frame is connected with the frame under the condition that the mounting part is positioned between the free end of the telescopic mechanism and the mounting surface, and the battery frame is separated from the frame under the condition that the free end of the telescopic mechanism is separated from the mounting part.
According to the chassis of the electric vehicle, the telescopic mechanism comprises a driving assembly, a locking piece and a fixed seat;
the fixing seat is provided with a through groove, the through groove is matched with the locking piece, and one end of the locking piece is positioned in the through groove;
drive assembly with the one end of retaining member is connected drive assembly's drive is down, the retaining member is followed the extending direction who leads to the groove slides, can with the installation department is connected or is separated.
According to the electric vehicle chassis provided by the invention, one side of the mounting part, which is far away from the mounting surface, is provided with the limiting part, the free end of the locking part is provided with the limiting groove, and the limiting part is abutted against the groove wall of the limiting groove under the condition that the locking part is connected with the mounting part.
According to the electric vehicle chassis provided by the invention, the battery frame comprises a frame, a connecting frame and a bottom plate;
the bottom plate comprises battery fixing beams, and a plurality of battery fixing beams are sequentially distributed;
the frame comprises longitudinal beams and vertical beams, the two longitudinal beams are arranged in parallel, and the vertical beam is arranged between the two longitudinal beams;
the two frames are respectively arranged on two sides of the bottom plate;
the connecting frame comprises a cross beam and the vertical beam, the two ends of the cross beam are respectively connected to the two side frames, and the vertical beam is arranged between the cross beam and the battery fixing beam.
According to the electric vehicle chassis provided by the invention, the frame and the connecting frame further comprise reinforcing beams, and the reinforcing beams are arranged between two adjacent vertical beams.
According to the electric vehicle chassis provided by the invention, the width of the connecting part of the vehicle frame and the battery frame is smaller than that of the battery frame in the width direction of the vehicle frame.
According to the electric vehicle chassis provided by the invention, one side of the cross beam and/or the longitudinal beam, which is far away from the bottom plate, is provided with the mounting hole, and the battery pack is detachably connected with the cross beam and/or the longitudinal beam through the mounting hole.
According to the electric vehicle chassis provided by the invention, a single battery pack is arranged on the battery fixing beam along the transverse direction;
and/or, a single battery pack is arranged on the battery fixing beam along the longitudinal direction;
and/or the plurality of battery packs are sequentially arranged on the battery fixing beam along the transverse direction;
and/or the plurality of battery packs are sequentially arranged on the battery fixing beam along the longitudinal direction.
According to the electric vehicle chassis provided by the invention, a single battery pack is arranged on the cross beam and/or the longitudinal beam along the longitudinal direction;
and/or the plurality of battery packs are sequentially arranged on the cross beam and/or the longitudinal beam along the longitudinal direction.
According to the electric vehicle chassis provided by the invention, the battery pack comprises a first battery pack and a second battery pack, and the length of the first battery pack is greater than that of the second battery pack.
According to the electric vehicle chassis provided by the invention, the electric vehicle chassis further comprises a control assembly, wherein the control assembly comprises a male end plug-in unit and a female end plug-in unit;
one of the male end plug-in unit and the female end plug-in unit is arranged on the battery frame, the other one of the male end plug-in unit and the female end plug-in unit is arranged on the frame, and the male end plug-in unit and the female end plug-in unit are in plug-in fit.
According to the electric vehicle chassis provided by the invention, the electric vehicle chassis further comprises a battery replacement controller and a battery replacement plug-in unit;
the battery replacement plug-in is arranged on the mounting surface and is in communication connection with the battery replacement controller, and the battery replacement controller controls the movement of the telescopic mechanism according to a signal of the battery replacement plug-in.
According to the electric vehicle chassis provided by the invention, the electric vehicle chassis further comprises a battery management assembly, the battery management assembly comprises a battery management unit and a high-voltage box, the battery management unit and the high-voltage box are both electrically connected with the battery pack, the battery management unit is used for collecting parameter information of the battery pack and controlling the battery pack, and the high-voltage box is used for power distribution.
According to the electric vehicle chassis provided by the invention, the electric vehicle chassis further comprises a bracket, the bracket is arranged on the mounting surface, and the battery management assembly is arranged on the bracket.
The present invention also provides an electric vehicle, comprising: the electric vehicle chassis is described above.
According to the electric vehicle chassis and the electric vehicle, the telescopic mechanism is arranged on the mounting surface of the battery frame, the telescopic mechanism moves towards the mounting part of the vehicle frame, one side surface of the free end of the telescopic mechanism is abutted against the top of the mounting part, so that the connection between the battery frame and the vehicle frame is realized, the telescopic mechanism moves away from the mounting part of the vehicle frame, one side surface of the free end of the telescopic mechanism is separated from the top of the mounting part, so that the separation between the battery frame and the vehicle frame is realized, the connection and the separation between the battery frame and the vehicle frame are realized through the telescopic motion of the telescopic mechanism, and the convenience in replacing a battery pack is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is one of the assembly schematics of an electric vehicle chassis provided by the present invention;
FIG. 2 is a schematic view of the installation structure of the battery frame and the telescoping mechanism provided by the present invention;
FIG. 3 is a schematic view of the connection between the telescoping mechanism and the frame;
FIG. 4 is a schematic view of the telescoping mechanism of the present invention shown separated from the frame;
FIG. 5 is a second schematic view of the assembly of the electric vehicle chassis provided by the present invention;
FIG. 6 is a third schematic view of the assembly of the electric vehicle chassis provided by the present invention;
FIG. 7 is a fourth schematic view of the assembly of the chassis of the electric vehicle provided by the present invention;
FIG. 8 is a fifth schematic view of the assembly of the chassis of the electric vehicle provided by the present invention;
FIG. 9 is a sixth schematic view of the assembly of the electric vehicle chassis provided by the present invention;
FIG. 10 is a partial schematic view of an electric vehicle chassis provided by the present invention;
reference numerals:
1: a battery frame; 2: a frame; 3: a telescoping mechanism;
4: a battery pack; 5: a drive assembly; 6: a fixed seat;
7: a locking member; 8: a limiting part; 9: a frame;
10: a cross beam; 11: a battery fixing beam; 12: a male end plug-in;
13: a female end plug-in; 14: a battery replacement controller; 15: a battery management unit;
16: a high voltage box; 17: a water cooling unit; 18: replacing the battery plug-in;
19: a support; 20: a first battery pack; 21: a second battery pack;
22: a stringer; 23: erecting a beam; 24: and reinforcing the beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The electric vehicle chassis and the electric vehicle of the present invention will be described with reference to fig. 1 to 10.
As shown in fig. 1, an electric vehicle chassis provided in an embodiment of the present invention includes: the device comprises a battery frame 1, a telescopic mechanism 3 and a frame 2;
the battery frame 1 is used for arranging a plurality of battery packs 4, the battery frame 1 is provided with a mounting surface facing the frame 2, and one side of the frame 2 facing the battery frame 1 is provided with a mounting part;
the telescopic mechanism 3 is provided on the mounting surface, and the battery frame 1 is connected to the vehicle body frame 2 when the mounting portion is located between the free end of the telescopic mechanism 3 and the mounting surface, and the battery frame 1 is separated from the vehicle body frame 2 when the free end of the telescopic mechanism 3 is separated from the mounting portion.
Specifically, battery frame 1 can be square frame, and battery frame 1's length dimension and width dimension set up according to actual demand, and a plurality of battery package 4 can be laid along battery frame 1's length direction in proper order, and a plurality of battery package 4 also can be laid along battery frame 1's width direction in proper order, and a plurality of battery package 4 also can be laid along battery frame 1's length direction and width direction in proper order simultaneously.
The frame 2 can be formed by splicing two longitudinal beams and two cross beams, the longitudinal beams can be made of U-shaped channel steel, the U-shaped channel steel is provided with two opposite side faces, and one side face of the U-shaped channel steel forms an installation part assembled with the battery frame 1.
The longitudinal beam can also be made of a rectangular steel pipe, a mounting plate is arranged on one side of the rectangular steel pipe, part of the mounting plate is suspended out of the rectangular steel pipe, and the mounting plate forms a mounting part assembled with the battery frame 1.
One side of the mounting portion that is defined to be in contact with the telescopic mechanism 3 is the top of the mounting portion, and the other side of the mounting portion that is defined to be in contact with the battery frame 1 is the bottom of the mounting portion.
One side of battery frame 1 is the installation face, and telescopic machanism 3 is located on the installation face, and telescopic machanism 3's quantity sets up according to actual need, and telescopic machanism 3 can move towards the installation department of frame 2 or move apart from the installation department of frame 2.
The longitudinal direction of the battery frame 1 is defined to coincide with the longitudinal direction of the vehicle body frame 2, and the width direction of the battery frame 1 is defined to coincide with the direction of the cross member 10 of the vehicle body frame 2. The number of the telescopic mechanisms 3 is two or more, and the telescopic mechanisms 3 are symmetrically arranged along the width direction of the battery frame 1.
The telescopic mechanism 3 moves towards the mounting part of the frame 2, after the telescopic mechanism 3 moves for a set distance, one side surface of the free end of the telescopic mechanism 3 is abutted against the top of the mounting part, and the telescopic mechanisms 3 symmetrically distributed along the width direction of the battery frame 1 are respectively abutted against the top of the mounting part, so that the connection between the battery frame 1 and the frame 2 is realized.
The telescopic mechanism 3 deviates from the mounting part of the frame 2 to move, after the telescopic mechanism 3 moves for a set distance, one side surface of the free end of the telescopic mechanism 3 is completely separated from the top of the mounting part, and the telescopic mechanisms 3 symmetrically distributed along the width direction of the battery frame 1 are respectively separated from the top of the mounting part, so that the separation of the battery frame 1 and the frame 2 is realized.
In the embodiment of the invention, the telescopic mechanism 3 is arranged on the mounting surface of the battery frame 1, the telescopic mechanism 3 moves towards the mounting part of the frame 2, one side surface of the free end of the telescopic mechanism 3 is abutted against the top of the mounting part, so that the connection between the battery frame 1 and the frame 2 is realized, the telescopic mechanism 3 moves away from the mounting part of the frame 2, one side surface of the free end of the telescopic mechanism 3 is separated from the top of the mounting part, so that the separation between the battery frame 1 and the frame 2 is realized, the connection and the separation between the battery frame 1 and the frame 2 are realized through the telescopic motion of the telescopic mechanism 3, and the convenience for replacing the battery pack 4 is improved.
In an alternative embodiment, shown in fig. 2, the telescopic mechanism 3 comprises a drive assembly 5, a locking member 7 and a fixed seat 6.
The fixed seat 6 is provided with a through groove which is matched with the locking piece 7, and one end of the locking piece 7 is positioned in the through groove; drive assembly 5 is connected with retaining member 7's one end, and under drive assembly 5's drive, retaining member 7 slides along the extending direction who leads to the groove, can be connected or separate with the installation department.
Specifically, the fixing seat 6 can be fixed on the mounting surface in a welding or screwing mode, the fixing seat 6 is provided with a through groove penetrating through two ends, the cross section size of the through groove is matched with the cross section size of the locking piece 7, and the locking piece 7 can conveniently slide along the through groove.
The driving component 5 can be a cylinder, an oil cylinder or a linear module, and the driving component 5 can reciprocate.
For example, the driving assembly 5 is a cylinder which is fixed on the mounting surface in a threaded manner, the cylinder is connected with one end of the locking member 7, one end of the locking member 7 can slide in the through groove, the other end of the locking member 7 is a free end of the locking member 7, and the battery frame 1 is connected with the frame 2 under the condition that the free end of the locking member 7 is contacted with the mounting portion; in the case where the free end of the locking member 7 is separated from the mounting portion, the battery frame 1 is separated from the vehicle body frame 2.
The movement of the telescopic mechanism 3 will be described in detail below.
As shown in fig. 3, when the cylinder performs the extending movement, the cylinder moves towards the mounting portion of the frame 2, the cylinder drives the locking member 7 to move towards the mounting portion of the frame 2 in the through groove, after the locking member 7 moves for a set distance, the bottom of the free end of the locking member 7 abuts against the top of the mounting portion, the locking members 7 symmetrically arranged along the width direction of the battery frame 1 abut against the top of the mounting portion respectively, and therefore the connection between the battery frame 1 and the frame 2 is achieved.
As shown in fig. 4, when the cylinder retracts, the cylinder moves away from the mounting portion of the frame 2, the cylinder drives the locking member 7 to move away from the mounting portion of the frame 2 in the through groove, after the locking member 7 moves for a set distance, the bottom of the free end of the locking member 7 is completely separated from the top of the mounting portion, the locking member 7 symmetrically arranged in the width direction of the battery frame 1 is separated from the top of the mounting portion respectively, and therefore the battery frame 1 is separated from the frame 2.
Under the drive of cylinder, retaining member 7 can carry out straight reciprocating motion at logical inslot, and retaining member 7 contacts with the bottom of the cell wall that leads to the groove, improves the stationarity that retaining member 7 removed, and retaining member 7 contacts with the top of the cell wall that leads to the groove, can prevent retaining member 7 drunkenness upwards, causes the pulling to the position of being connected of retaining member 7 and cylinder, improves the security of retaining member 7 and cylinder.
In the embodiment of the invention, the driving assembly 5 is connected with one end of the locking member 7, and the locking member 7 moves towards or away from the mounting part of the frame 2 in the through groove under the driving of the driving assembly 5, so that the connection or separation of the battery frame 1 and the frame 2 is realized, the locking member 7 stably moves in the through groove, and the reliability of the telescopic mechanism 3 is improved.
In an alternative embodiment, a limiting part 8 is arranged on one side of the mounting part, which is away from the mounting surface, a limiting groove is arranged at the free end of the locking part 7, and the limiting part 8 is abutted against the groove wall of the limiting groove under the condition that the locking part 7 is in contact with the mounting part.
As shown in fig. 1 and 3, specifically, a limiting portion 8 is disposed at the top of the mounting portion, the limiting portion 8 may be a cylinder, and the limiting portion 8 may be fixed to the top of the mounting portion by welding or screwing.
The free end of retaining member 7 is inwards sunken to form the spacing groove, and the spacing groove and spacing portion 8 looks adaptation.
Under drive assembly 5's drive, retaining member 7 removes towards the installation department of frame 2 in leading to the inslot, and retaining member 7 removes and sets for the distance after, the bottom of the free end of retaining member 7 and the top looks butt of installation department, spacing portion 8 is located spacing inslot, and the cell wall looks butt of spacing portion 8 and spacing groove.
Spacing portion 8 and spacing groove's cell wall looks butt, spacing portion 8 can prevent that retaining member 7 from taking place to remove along the fore-and-aft direction of frame 2, further prevents that battery frame 1 from taking place to remove along the fore-and-aft direction of frame 2, improves the stability of battery frame 1 and frame 2 assembly.
Further, spacing portion 8 can also carry out horizontal location to retaining member 7, and retaining member 7 removes the distance of setting for back towards the installation department of frame 2 in leading to the inslot, spacing portion 8 and the cell wall looks butt of spacing groove, retaining member 7 stop motion. In case of an accident of the driving assembly 5, the limiting part 8 can prevent the locking member 7 from further moving and colliding with the frame 2, thereby improving the safety of the telescopic mechanism 3.
As shown in fig. 3, optionally, the free end of the locking member 7 may be provided with an L-shaped limiting groove, after the locking member 7 moves a set distance in the through groove toward the mounting portion of the frame 2, the limiting portion 8 abuts against a groove wall of the limiting groove, one end surface of the L-shaped limiting groove abuts against the top of the mounting portion, and one end surface of the L-shaped limiting groove abuts against an end portion of the mounting portion, so as to improve the stability of the assembly of the battery frame 1 and the frame 2.
Optionally, spacing portion 8 and the cell wall looks butt of spacing groove, and spacing portion 8's free end is equipped with the screw thread, and spacing portion 8's free end is worn to establish by the fastener, and one side of fastener contacts with the top of the free end of retaining member 7, can prevent that retaining member 7 from taking place the drunkenness to the direction of keeping away from the installation department, further improves the stability of battery frame 1 and frame 2 assembly.
In the embodiment of the invention, the free end of the locking piece 7 is provided with the limiting groove, under the condition that the locking piece 7 is contacted with the mounting part, the limiting part 8 is abutted with the groove wall of the limiting groove, and the limiting part 8 can prevent the battery frame 1 from moving along the front-back direction of the vehicle frame 2, thereby improving the stability of assembling the battery frame 1 and the vehicle frame 2.
As shown in fig. 2, in an alternative embodiment, the battery frame 1 includes a rim 9, a connection frame, and a bottom plate;
the bottom plate comprises a battery fixing beam 11, and a plurality of battery fixing beams 11 are sequentially distributed;
the frame 9 comprises longitudinal beams 22, vertical beams 23 and reinforcing beams 24, wherein the two longitudinal beams 22 are arranged in parallel, the vertical beam 23 is arranged between the two longitudinal beams 22, and the reinforcing beam 24 is arranged between the two adjacent vertical beams 23;
the two frames 9 are respectively arranged on the two sides of the bottom plate;
the connecting frame comprises a cross beam 10, a vertical beam 23 and a reinforcing beam 24, two ends of the cross beam 10 are respectively connected to the two side frames 9, and the vertical beam is arranged between the cross beam 10 and the battery fixing beam 11.
Specifically, the frame 9 includes longitudinal beams 22, vertical beams 23, and reinforcing beams 24, the longitudinal beams 22, the vertical beams 23, and the reinforcing beams 24 may be made of rectangular steel pipes or angle steels, etc., the two longitudinal beams 22 are arranged in parallel, a plurality of vertical beams 23 are provided between the two longitudinal beams 22, and the plurality of vertical beams 23 are sequentially arranged along one end of the longitudinal beams 22 toward the other end. And a reinforcing beam 24 is arranged between two adjacent vertical beams 23, and the number of the reinforcing beams 24 can be one or two. Two adjacent vertical beams 23 and two longitudinal beams 22 form two diagonal lines, one end of the reinforcing beam 24 is positioned at one end of the diagonal line, the other end of the reinforcing beam 24 is positioned at the other end of the diagonal line, and the reinforcing beam 24 is used for improving the strength of the frame 9.
The bottom plate includes battery fixed beam 11, and battery fixed beam 11 can adopt the steel sheet preparation, and battery fixed beam 11's one end links to each other with the bottom of a frame 9, and battery fixed beam 11's the other end links to each other with the bottom of another frame 9, and a plurality of battery fixed beams 11 are laid along the length direction of frame 9 interval in proper order. Two adjacent battery fixing beams 11 can be used for fixing one battery pack 4, and the battery pack 4 can be fixed on the battery fixing beams 11 in a threaded manner.
The connecting frame comprises a cross beam 10, the cross beam 10 can be made of rectangular steel pipes, one end of the cross beam 10 is connected with the top of one frame 9, the other end of the cross beam 10 is connected with the top of the other frame 9, and the cross beams 10 are sequentially arranged along the length direction of the frames 9 at intervals. The upper surface of the cross beam 10 is flush with the upper surface of the rim 9. The distance between two adjacent cross beams 10 is slightly larger than the size of the battery pack 4, so that the battery pack 4 can be placed conveniently. The upper surfaces of the plurality of cross members 10 constitute mounting surfaces of the telescopic mechanism 3.
From this, two frames 9, two adjacent crossbeams 10 and two adjacent battery fixing beams 11 enclose into an accommodation space, and two frames 9, many crossbeams 10 and a plurality of battery fixing beams 11 enclose into a plurality of accommodation spaces, and a plurality of accommodation spaces are used for placing a plurality of battery package 4.
In the embodiment of the present invention, the two frames 9 are disposed oppositely, the plurality of beams 10 are disposed on the top of the frame 9, the plurality of battery fixing beams 11 are disposed on the bottom of the frame 9, and the two frames 9, the plurality of beams 10 and the plurality of battery fixing beams 11 enclose a plurality of accommodating spaces, so that the battery frame 1 can accommodate the plurality of battery packs 4.
In an alternative embodiment, the width of the connection portion of the vehicle frame 2 to the battery frame 1 is smaller than the width of the battery frame 1 in the width direction of the vehicle frame 2.
Specifically, the size of the battery frame 1 in the width direction of the vehicle frame 2 is larger than the width size of the vehicle frame 2, so that the battery packs 4 can be placed in the accommodating space, and the battery packs 4 can also be placed at the position between the top of the battery frame 1 and the outer side of the vehicle frame 2, so as to ensure the installation number of the battery packs 4.
In an alternative embodiment, the side of the cross beam 10 and/or the longitudinal beam 22 facing away from the bottom plate is provided with mounting holes, and the battery pack 4 is detachably connected with the cross beam 10 and/or the longitudinal beam 22 through the mounting holes.
Specifically, two frames 9 that set up relatively, many crossbeams 10 and a plurality of battery fixed beam 11 constitute battery frame 1, the length direction of definition battery frame 1 is unanimous with the longitudinal direction of frame 2, the width direction of definition battery frame 1 is unanimous with the transverse direction in workshop, many crossbeams 10 are laid along battery frame 1's length direction in proper order, the upper surface of many crossbeams 10 flushes with the upper surface of frame 9, the upper surface of crossbeam 10 is equipped with the mounting hole, the both ends of every crossbeam 10 are laid to the mounting hole, the upper surface of longeron 22 also is equipped with the mounting hole, the mounting hole is laid along battery frame 1's width direction symmetry.
Two rows of mounting holes may be provided on one side of the cross member 10 in the longitudinal direction of the battery frame 1 to fix the battery pack 4, or one row of mounting holes may be provided on one side of the cross member 10 in the longitudinal direction of the battery frame 1, and one row of mounting holes may be provided on the upper surface of the side member 22 in the longitudinal direction of the battery frame 1 to fix the battery pack 4. The positions and the number of the mounting holes of the upper surface of the cross beam 10 and the upper surface of the longitudinal beam 22 are set according to actual requirements.
The bottom of battery package 4 is equipped with the mounting hole, and the fastener wears to establish the mounting hole of battery package 4 and the mounting hole of crossbeam 10 in proper order, is fixed in crossbeam 10 with battery package 4, and the both ends of crossbeam 10 can be used for placing battery package 4 from this, and battery package 4 also can be placed to battery frame 1's inside, and battery package 4 also can all be placed to the inside of also being exactly battery frame 1 and battery frame 1's top, has increased the installation quantity of battery package 4.
In the embodiment of the invention, the side of the cross beam 10 and the side beam 22, which is far away from the bottom plate, are provided with mounting holes, and the battery pack 4 can be fixed on the cross beam 10 and the side beam 22 through the mounting holes, so that the mounting number of the battery pack 4 is increased.
In an alternative embodiment, a single battery pack 4 is provided to the battery fixing beam 11 in the lateral direction;
and/or, the single battery pack 4 is arranged on the battery fixing beam 11 along the longitudinal direction;
and/or the plurality of battery packs 4 are sequentially arranged on the battery fixing beam 11 along the transverse direction;
and/or a plurality of battery packs 4 are sequentially arranged on the battery fixing beam 11 along the longitudinal direction.
Specifically, the number of the battery fixing beams 11 may be two, the two battery fixing beams 11 are distributed at two ends of the frame 9, and the two battery fixing beams 11 are used for fixing one battery pack 4, that is, the length direction of the battery pack 4 is consistent with the transverse direction of the frame 2.
Or, the number of the battery fixing beams 11 is multiple, the multiple battery fixing beams 11 are sequentially arranged along the length direction of the frame 9, and two adjacent battery fixing beams 11 are used for fixing one battery pack 4, so that the multiple battery packs 4 are sequentially fixed on the multiple battery fixing beams 11 along the transverse direction, that is, the length direction of the battery pack 4 is consistent with the transverse direction of the frame 2.
Alternatively, the single battery pack 4 is fixed to the battery fixing beam 11 in the longitudinal direction, that is, the length direction of the battery pack 4 coincides with the longitudinal direction of the vehicle frame 2.
Alternatively, a plurality of battery packs 4 are fixed to the battery fixing beam 11 in the longitudinal direction, that is, the lengthwise direction of the battery packs 4 coincides with the longitudinal direction of the vehicle frame 2.
In the embodiment of the present invention, the battery pack 4 is fixed to the battery fixing beam 11 along the transverse direction or the longitudinal direction, so as to meet various placement requirements of the battery pack 4 inside the battery frame 1.
In an alternative embodiment, a single battery pack 4 is provided to the cross member 10 and/or the longitudinal member 22 in the longitudinal direction;
and/or a plurality of battery packs 4 are sequentially arranged on the cross beam 10 and/or the longitudinal beam 22 along the longitudinal direction.
Specifically, the upper surface of crossbeam 10 is equipped with the mounting hole, and the mounting hole is laid in the both ends of crossbeam 10, and the upper surface of longeron 22 is equipped with the mounting hole, and the mounting hole of battery package 4 and the mounting hole of crossbeam 10 are worn to establish in proper order to the fastener, or the mounting hole of battery package 4, the mounting hole of crossbeam 10 and the mounting hole of longeron 22 are worn to establish in proper order to the fastener, is fixed in the one end of crossbeam 10 with battery package 4. One battery pack 4 may be placed between the outer side of the vehicle body frame 2 and the edge portion of the battery frame 1 in the lateral direction of the vehicle body frame 2, and a plurality of battery packs 4 may be placed even when the length of the battery pack 4 is small, and the length direction of the battery pack 4 coincides with the length direction of the battery frame 1.
In the embodiment of the invention, a single battery pack 4 is fixed on the cross beam 10 on the outer side of the vehicle frame 2 along the longitudinal direction, or a plurality of battery packs 4 are fixed on the cross beam 10 on the outer side of the vehicle frame 2 along the longitudinal direction, so that various placement requirements of the battery packs 4 on the upper part of the battery frame 1 are met.
In an alternative embodiment, the battery pack 4 includes a first battery pack 20 and a second battery pack 21, and the length of the first battery pack 20 is greater than the length of the second battery pack 21.
The first battery pack 20 is defined as a long battery pack, and the second battery pack 21 is defined as a short battery pack. The long battery pack can be placed in the accommodating space inside the battery frame 1 and also can be placed on the cross beam 10; the short battery pack can be placed in the accommodating space inside the battery frame 1 and also can be placed on the cross beam 10, and the arrangement mode of the long battery pack and the short battery pack is set according to actual requirements.
Specifically, the frame 9, the plurality of battery fixing beams 11 and the plurality of cross beams 10 enclose a plurality of accommodating spaces, and each accommodating space can accommodate one long battery pack or two short battery packs. One end of the cross member 10 may be fixed with one long battery pack or two short battery packs.
As shown in fig. 1, for example, five cross beams 10 are uniformly arranged along the length direction of the frame 9, and the frame 9, the five battery fixing beams 11 and the five cross beams 10 enclose four accommodating spaces, where four long battery packs can be placed.
As shown in fig. 5, for example, two ends of the cross beam 10 are respectively provided with a mounting hole, two long battery packs are fixed on the four cross beams 10 through the mounting holes on the four cross beams 10, and the four accommodation spaces accommodate the four long battery packs, so that six long battery packs can be accommodated in one battery frame 1.
As shown in fig. 6, for example, the long battery packs may be arranged along the width direction of the battery frame 1, two long battery packs may be symmetrically placed inside the battery frame 1 along the width direction of the battery frame 1, and two long battery packs may be symmetrically fixed above the cross member 10 through the mounting holes on the cross member 10, so that four long battery packs may be symmetrically placed along the width direction of the battery frame 1.
As shown in fig. 7, for example, four accommodating spaces are defined by the frame 9, five battery fixing beams 11 and five cross beams 10, four long battery packs are placed in the four accommodating spaces, two short battery packs are sequentially arranged along the length direction of the frame body, the two short battery packs are fixed to one end of the cross beam 10 through mounting holes in the cross beam 10, the two short battery packs are fixed to the other end of the cross beam 10 through mounting holes in the cross beam 10, and thus, the four short battery packs are fixed to the cross beam 10, and thus, the four long battery packs and the four short battery packs can be placed in one battery frame 1.
As shown in fig. 8, for example, the frame 9, the five battery fixing beams 11 and the five cross beams enclose four accommodating spaces, each accommodating space accommodates two short battery packs, and the four accommodating spaces accommodate eight short battery packs. Two short battery packs are fixed at one end of the cross beam 10 through mounting holes in the cross beam 10, and two short battery packs are fixed at the other end of the cross beam 10 through mounting holes in the cross beam 10, so that four short battery packs are fixed on the cross beam 10, and twelve short battery packs can be placed on one battery frame 1.
The first battery pack 20 and the second battery pack 21 can be mounted in various combinations by one battery frame 1, which is not illustrated here.
In the embodiment of the present invention, one battery frame 1 can be mounted in various combinations of the first battery pack 20 and the second battery pack 21, so as to meet the diversified demands of users.
In an alternative embodiment, as shown in fig. 9 and 10, the electric vehicle chassis further comprises a control assembly comprising a male end insert 12 and a female end insert 13.
One of the male end plug-in unit 12 and the female end plug-in unit 13 is arranged on the battery frame 1, the other is arranged on the vehicle frame 2, and the male end plug-in unit 12 and the female end plug-in unit 13 are in plug-in fit.
As shown in fig. 10, specifically, the male plug 12 may be disposed on the mounting surface of the battery frame 1, the female plug 13 is disposed on the frame 2, the male plug 12 and the female plug 13 are disposed oppositely, and after the battery frame 1 is connected to the frame 2, the male plug 12 and the female plug 13 are inserted and matched to realize the electrical connection of the control assembly.
The male end plug-in 12 can also be arranged on the frame 2, the female end plug-in 13 is arranged on the installation surface of the battery frame 1, and after the battery frame 1 is connected with the frame 2, the male end plug-in 12 and the female end plug-in 13 are in plug-in fit to realize the electrical connection of the control assembly.
In an alternative embodiment, the electric vehicle chassis further comprises a battery replacement controller 14 and a battery replacement plug-in 18.
The battery replacing plug-in 18 is arranged on the installation surface, the battery replacing plug-in 18 is in communication connection with the battery replacing controller 14, and the battery replacing controller 14 controls the movement of the telescopic mechanism 3 according to a signal of the battery replacing plug-in 18.
Specifically, the battery replacement plug-in 18 is arranged at an end of the mounting surface, so as to be electrically connected with a battery replacement platform of the battery replacement station.
The specific operation is explained below.
After the electric vehicle enters the battery replacing station, the battery replacing plug-in 18 is electrically connected with a battery replacing platform of the battery replacing station, and the battery replacing platform starts to work. Trade electric platform and remove under battery frame 1, trade electric controller 14 control cylinder and carry out the retraction motion, the cylinder deviates from the installation department of frame 2 and removes, cylinder drive retaining member 7 removes at the installation department that deviates from frame 2 in leading to the inslot, retaining member 7 removes and sets for the distance after, along the retaining member 7 of battery frame 1 width direction symmetry laying respectively with the top phase separation of installation department, realize the separation of battery frame 1 and frame 2 from this.
The battery frame 1 is placed on the battery replacing platform, the battery replacing platform moves the battery frame 1 into the battery replacing station, the battery pack 4 which consumes the electric quantity is taken out, and the fully charged battery pack 4 is placed into the battery frame 1.
Trade electric platform and will change battery frame 1 of good battery package 4 again and remove to frame 2 department, at this moment, trade electric controller 14 control cylinder and carry out the motion of stretching out, the cylinder removes towards the installation department of frame 2, cylinder drive retaining member 7 removes towards the installation department of frame 2 in leading to the inslot, retaining member 7 removes after setting for the distance, retaining member 7 along the width direction symmetry of battery frame 1 is laid respectively with the top looks butt of installation department, realize being connected of battery frame 1 and frame 2 from this.
In the embodiment of the invention, the battery frame 1 and the vehicle frame 2 are connected and separated through the control assembly, so that bottom lifting battery replacement is realized, and convenience and safety of battery replacement are improved.
As shown in fig. 9, in an alternative embodiment, the electric vehicle chassis further includes a battery management assembly, where the battery management assembly includes a battery management unit 15 and a high voltage box 16, the battery management unit 15 and the high voltage box 16 are both electrically connected to the battery pack 4, the battery management unit 15 is configured to collect parameter information of the battery pack 4 and control the battery pack, and the high voltage box 16 is configured to distribute power.
Specifically, the battery management unit 15 is configured to collect parameters such as temperature information, current information, and electric quantity information of each battery pack 4, the battery management unit 15 is connected to the high voltage box 16, and the high voltage box 16 can selectively control the corresponding battery pack 4 to be put into use or stopped from being used according to a signal fed back by the battery management unit 15.
Further, the electric vehicle chassis further comprises a water cooling unit 17, the water cooling unit 17 is used for controlling the temperature of the battery packs 4 within a normal range, the water cooling unit 17 can cool each battery pack 4, the risk of spontaneous combustion of the battery packs 4 is reduced, and the use safety of the battery packs 4 is improved.
In an alternative embodiment, as shown in fig. 9, the electric vehicle chassis further includes a bracket 19, the bracket 19 is disposed on the mounting surface, and the battery management assembly is disposed on the bracket 19.
Specifically, the bracket 19 may be fixed between two adjacent cross beams 10 by a screw connection. The number of the brackets 19 can be set according to actual requirements, and the brackets 19 are arranged in the middle of the battery frame 1.
The battery management unit 15, the high-voltage box 16 and the water cooling unit 17 can be fixed on the support 19 in a threaded mode, after the battery frame 1 is connected with the frame 2, the battery management unit 15, the high-voltage box 16 and the water cooling unit 17 are located between two longitudinal beams of the frame 2, and the space of the electric vehicle chassis is reasonably utilized.
One of the male end plug-in unit 12 and the female end plug-in unit 13 and the battery replacement controller 14 can also be arranged on the support 19, and after the battery frame 1 is connected with the frame 2, the male end plug-in unit 12, the female end plug-in unit 13 and the battery replacement controller 14 are positioned between two longitudinal beams of the frame 2, so that the space of the chassis of the electric vehicle is reasonably utilized.
In the embodiment of the invention, the bracket 19 is arranged on the mounting surface, and the battery management assembly and the control assembly can be arranged on the bracket 19, so that the space utilization rate of the chassis of the electric vehicle is improved.
An embodiment of the present invention further provides an electric vehicle, including: the electric vehicle chassis is described above.
Specifically, since the electric vehicle according to the embodiment of the present invention includes the above-mentioned electric vehicle chassis, and the specific structure of the electric vehicle chassis refers to the above-mentioned embodiment, and the electric vehicle adopts all the technical solutions of all the above-mentioned embodiments, all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are at least achieved, and are not repeated herein.
The electric vehicle shown in the embodiment comprises a commercial vehicle, a passenger vehicle and an operation vehicle, wherein the operation vehicle can be a fire truck, a boom truck, a pump truck, an excavator and the like.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (15)
1. An electric vehicle chassis, comprising: the device comprises a battery frame, a telescopic mechanism and a frame;
the battery frame is used for arranging a plurality of battery packs, the battery frame is provided with a mounting surface facing the frame, and one side of the frame facing the battery frame is provided with a mounting part;
the telescopic mechanism is arranged on the mounting surface, the battery frame is connected with the frame under the condition that the mounting part is positioned between the free end of the telescopic mechanism and the mounting surface, and the battery frame is separated from the frame under the condition that the free end of the telescopic mechanism is separated from the mounting part.
2. The electric vehicle chassis of claim 1, wherein the telescoping mechanism comprises a drive assembly, a locking member, and a fixed seat;
the fixing seat is provided with a through groove, the through groove is matched with the locking piece, and one end of the locking piece is positioned in the through groove;
drive assembly with the one end of retaining member is connected drive assembly's drive is down, the retaining member is followed the extending direction who leads to the groove slides, can with the installation department is connected or is separated.
3. The electric vehicle chassis according to claim 2, wherein a limiting part is arranged on one side of the mounting part, which is far away from the mounting surface, a limiting groove is formed in a free end of the locking part, and the limiting part abuts against a groove wall of the limiting groove under the condition that the locking part is connected with the mounting part.
4. The electric vehicle chassis of claim 1, wherein the battery frame comprises a rim, a connecting frame, and a bottom plate;
the bottom plate comprises battery fixing beams, and a plurality of battery fixing beams are sequentially distributed;
the frame comprises longitudinal beams and vertical beams, the two longitudinal beams are arranged in parallel, and the vertical beam is arranged between the two longitudinal beams;
the two frames are respectively arranged on two sides of the bottom plate;
the connecting frame comprises a cross beam and the vertical beam, the two ends of the cross beam are respectively connected to the two side frames, and the vertical beam is arranged between the cross beam and the battery fixing beam.
5. The electric vehicle chassis as claimed in claim 4, wherein the side frames and the connecting frame further comprise reinforcing beams, and the reinforcing beams are arranged between two adjacent vertical beams.
6. The electric vehicle chassis according to claim 4, wherein a width of a connection portion of the vehicle frame and the battery frame in a width direction of the vehicle frame is equal to or less than a width of the battery frame.
7. The electric vehicle chassis of claim 4, wherein a mounting hole is formed in one side of the cross beam and/or the longitudinal beam, which is away from the bottom plate, and the battery pack is detachably connected with the cross beam and/or the longitudinal beam through the mounting hole.
8. The electric vehicle chassis according to claim 7, wherein a single battery pack is provided to the battery fixing beam in a lateral direction;
and/or, a single battery pack is arranged on the battery fixing beam along the longitudinal direction;
and/or the plurality of battery packs are sequentially arranged on the battery fixing beam along the transverse direction;
and/or the plurality of battery packs are sequentially arranged on the battery fixing beam along the longitudinal direction.
9. The electric vehicle chassis according to claim 8, wherein a single battery pack is provided to the cross member and/or the longitudinal member in a longitudinal direction;
and/or the plurality of battery packs are sequentially arranged on the cross beam and/or the longitudinal beam along the longitudinal direction.
10. The electric vehicle chassis of claim 9, wherein the battery pack comprises a first battery pack and a second battery pack, the first battery pack having a length greater than a length of the second battery pack.
11. The electric vehicle chassis of claim 1, further comprising a control assembly comprising a male end insert and a female end insert;
one of the male end plug-in unit and the female end plug-in unit is arranged on the battery frame, the other one of the male end plug-in unit and the female end plug-in unit is arranged on the frame, and the male end plug-in unit and the female end plug-in unit are in plug-in fit.
12. The electric vehicle chassis of claim 1, further comprising a battery swapping controller and a battery swapping plug-in;
the battery replacement plug-in is arranged on the mounting surface and is in communication connection with the battery replacement controller, and the battery replacement controller controls the movement of the telescopic mechanism according to a signal of the battery replacement plug-in.
13. The electric vehicle chassis of claim 1, further comprising a battery management assembly, wherein the battery management assembly comprises a battery management unit and a high voltage box, the battery management unit and the high voltage box are both electrically connected to the battery pack, the battery management unit is configured to collect parameter information of the battery pack and control the battery pack, and the high voltage box is configured to distribute power.
14. The electric vehicle chassis of claim 13, further comprising a bracket disposed on the mounting surface, wherein the battery management assembly is disposed on the bracket.
15. An electric vehicle comprising the electric vehicle chassis of any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007437.4A CN113752811A (en) | 2021-08-30 | 2021-08-30 | Electric vehicle chassis and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007437.4A CN113752811A (en) | 2021-08-30 | 2021-08-30 | Electric vehicle chassis and electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN113752811A true CN113752811A (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111007437.4A Pending CN113752811A (en) | 2021-08-30 | 2021-08-30 | Electric vehicle chassis and electric vehicle |
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| CN (1) | CN113752811A (en) |
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