CN114374035B - Battery pack capable of quickly replacing battery module and vehicle with battery pack - Google Patents
Battery pack capable of quickly replacing battery module and vehicle with battery pack Download PDFInfo
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- CN114374035B CN114374035B CN202111658202.1A CN202111658202A CN114374035B CN 114374035 B CN114374035 B CN 114374035B CN 202111658202 A CN202111658202 A CN 202111658202A CN 114374035 B CN114374035 B CN 114374035B
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- 239000010959 steel Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000013585 weight reducing agent Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 25
- 238000009434 installation Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery pack capable of quickly replacing a battery module and a vehicle with the battery pack, wherein the battery pack comprises: the battery module comprises a structural bearing piece, a bottom protection piece and a battery module, wherein the structural bearing piece is provided with a containing cavity; the bottom protection piece is provided with one or more battery mounting ports and is in sealing connection with the structural bearing piece; the battery module comprises a battery module body and a battery module base, wherein the battery module base is provided with a first sealing flanging, the battery module body penetrates through a battery mounting opening and is arranged in the accommodating cavity, the bottom protection piece is far away from the outer surface of the accommodating cavity and is in sealing connection with the first sealing flanging, and the number of the battery modules corresponds to the number of the battery mounting openings; the battery system level grouping efficiency is improved, the driving range of the electric vehicle is increased, meanwhile, the energy density of the battery system is improved, the power can be contributed to the weight reduction of the whole vehicle level, and the failed battery can be quickly replaced, so that the maintenance time can be saved for a user.
Description
Technical Field
The invention relates to the technical field of battery packs, in particular to a battery pack capable of quickly replacing a battery module and a vehicle with the battery pack.
Background
The battery is an important component for ensuring the functions of the electric vehicle as a power device of the electric vehicle, but the energy density of the single battery in a short period is difficult to be greatly improved due to the technical limitation, and particularly the energy density of the single battery reaches the same grade as that of gasoline. Therefore, in the current technical system, the problem of low energy density of the single battery needs to be overcome by improving the grouping efficiency of the system level. The battery system is a key element due to the limitation of cost and development period, and the battery system can be generalized and has a current trend, so that the generalized design is also required to be compatible.
The energy density and the universalization of the battery pack are improved, the trend of the current battery technology development is that functional overlapping exists between the battery box and the vehicle body according to the principles of part modularization and functional integration, so that partial functions of the battery box and the vehicle body are integrated, and the weight of the whole vehicle can be greatly reduced on the premise of ensuring the mode, the rigidity and the strength of the whole vehicle. Meanwhile, the battery is limited by the prior battery technology, the battery is unavoidable to fail, and when the battery fails, the failed battery can be quickly replaced, so that the user experience can be improved, and the problems are needed to be solved.
Disclosure of Invention
The invention aims to provide a battery pack capable of quickly replacing a battery module and a vehicle with the battery pack, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a battery pack capable of rapidly replacing a battery module, comprising:
a structural carrier provided with a receiving cavity;
a bottom guard provided with one or more battery mounting ports, the bottom guard being sealingly connected to the structural carrier;
the battery module comprises a battery module body and a battery module base, wherein the battery module base is provided with a first sealing flanging, the battery module body penetrates through the battery mounting opening and is arranged in the accommodating cavity, the bottom protection piece is far away from the outer surface of the accommodating cavity and is in sealing connection with the first sealing flanging, the outer surface of the bottom protection piece is oppositely arranged with the ground, and the number of the battery modules corresponds to the number of the battery mounting openings.
Further, the first sealing flange is magnetic, and the first sealing flange is adsorbed on the outer surface of the bottom protection piece far away from the accommodating cavity through attractive magnetic force, so that the outer surface of the bottom protection piece is in sealing connection with the first sealing flange, wherein the attractive magnetic force is larger than the gravity of the battery module.
Further, the bottom protection member has a magnetic force generation layer, the magnetic force generation layer is provided with first coil around the battery module installation mouth, the battery module base is provided with first core, first core wears to establish in the battery installation mouth, after the first coil circular telegram, first iron core receives with the repulsive magnetic force opposite of repulsive magnetic force, wherein, when the gravity of battery module with repulsive magnetic force's resultant force is greater than repulsive magnetic force, the battery module with the bottom protection member breaks away from.
Further, the bottom guard further comprises: the non-metal layer is connected with the magnetic force generation layer, and the magnetic force generation layer is connected with the steel plate layer; the steel plate layer is bonded with the structural bearing piece through structural adhesive.
Further, the method further comprises the following steps: the system comprises a battery management system, an electromagnetic controller, a detection module and an alarm module; when the battery module fails, the battery management system can lock the failed battery; the electromagnetic controller sends an electromagnetic control instruction for replacing the fault battery module to the battery management system; the battery management system receives an electromagnetic control instruction and then sends a detection command to a detection module, the detection module detects whether a battery main loop is disconnected or not, the detection module outputs a detection qualified signal to the battery management system, the battery management system sends an execution signal to an electromagnetic controller, the execution signal instructs the electromagnetic controller to send an energizing action instruction to a first coil corresponding to the fault battery module, the energizing action instruction is used for instructing the first coil to execute energizing action, and the energizing action is used for instructing to close a conduction switch of the first coil so that the first coil has current passing; if the detection module detects that the battery main loop is not disconnected, the detection module outputs a detection failure signal to the battery management system, the battery management system sends an alarm signal to the alarm module, and the alarm signal instructs the alarm module to send an alarm action so as to remind a driver and terminate a program for replacing the failed battery module.
Further, the device also comprises an electrical control box; the bottom protection piece is provided with a control box mounting opening, the electric control box comprises a control box main body and a control box base, the control box base is provided with a second sealing flanging and a second iron core, the control box main body penetrates through the control box mounting opening and is arranged in the accommodating cavity, the second sealing flanging is magnetic and is attracted with the bottom protection piece, the attraction magnetic force is larger than the gravity of the electric control box, so that the electric control box is in sealing connection, a second coil is arranged around the control box mounting opening, the second iron core penetrates through the control box mounting opening, the second iron core is subjected to the attraction magnetic force opposite to the attraction magnetic force after the second coil is electrified, and the electric control box is separated from the bottom protection piece when the resultant force of the gravity of the electric control box and the attraction magnetic force is larger than the attraction magnetic force.
Further, the device also comprises a bottom supporting plate, one end of the bottom supporting plate is hinged with the bottom protection piece, and the opposite end of the bottom supporting plate is detachably connected with the bottom protection piece.
Further, the battery capacity of each battery module corresponds to a corresponding driving mileage.
Further, the structure carrier comprises a front component and a rear component, and the structure carrier is respectively connected with the front component and the rear component; the structure bearing piece further comprises longitudinal beams, the longitudinal beams are arranged on two sides of the structure bearing piece at intervals, and the longitudinal beams are of aluminum profile structures.
In another aspect, a vehicle includes a battery pack of the above-described type that is capable of quickly replacing a battery module.
Compared with the prior art, the invention has the beneficial effects that: the battery system level grouping efficiency is improved, the driving range of the electric vehicle is increased, meanwhile, the energy density of the battery system is improved, the power can be contributed to the weight reduction of the whole vehicle level, and the failed battery can be quickly replaced, so that the maintenance time can be saved for a user.
Drawings
Fig. 1 is an exploded view of a battery pack structure of a rapidly replaceable battery module according to an embodiment of the present invention;
fig. 2 is an exploded view illustrating a battery pack structure of another quick-replaceable battery module according to an embodiment of the present invention;
FIG. 3 is a schematic view of a structural carrier according to an embodiment of the present invention;
fig. 4 is a schematic view of a battery module structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a bottom guard structure according to an embodiment of the present invention;
fig. 6 is a schematic view illustrating a structure of another battery module according to an embodiment of the present invention;
fig. 7 is a schematic view showing the connection of the battery module, the bottom protection member and the bottom pallet structure according to the embodiment of the invention;
fig. 8 is a schematic structural connection diagram of an electrical control component according to an embodiment of the present invention.
In the figure: 100. a structural carrier; 200. a bottom guard; 300. a battery module; 400. a battery management system; 500. an electrical control box; 600. a bottom pallet; 700. a liquid cooling plate; 800. a front assembly; 900. a rear assembly; 110. a longitudinal beam; 210. a battery mounting port; 220. a magnetic force generation layer; 230. a non-metal layer; 240. a steel plate layer; 250. a control box mounting port; 310. a battery module body; 320. a battery module base; 410. an electromagnetic controller; 420. a detection module; 430. an alarm module; 221. a first coil; 321. a first sealing flange; 322. a battery explosion-proof valve; 323. a first core; 324. an output electrode.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to the drawings in the specification, the invention provides a technical scheme that: a battery pack capable of rapidly replacing a battery module, comprising:
a structural carrier 100, the structural carrier 100 being provided with a receiving cavity;
a bottom guard 200, said bottom guard 200 being provided with one or more battery mounting ports 210, said bottom guard 200 being in sealing connection with said structural carrier 100;
the battery module 300, the battery module 300 includes battery module main part 310 and battery module base 320, battery module base 320 has first sealed turn-ups 321, battery module main part 310 passes battery installation mouth 210 sets up in holding the intracavity, bottom shield 200 is kept away from hold the surface in chamber with first sealed turn-ups 321 sealing connection, the surface and the ground of bottom shield 200 set up relatively, wherein, the quantity of battery module 300 with the quantity of battery installation mouth 210 corresponds.
In the above embodiment, since the outer surface of the bottom protection member 200 is opposite to the ground, the external environment is affected by rainwater, so that the bottom protection member 200 is in sealing connection with the structural bearing member, and the first sealing flange 321 of the battery module base 320 is also in sealing connection with the battery mounting port 210, so that the accommodating cavity forms a sealing structure, when the battery fails, the single battery module 300 is designed to be plugged in and out, and the failed battery module 300 is quickly locked by the battery management system, and is quickly replaced, so that the battery pack is not required to be integrally disassembled for repair, the maintenance speed of the battery pack is greatly reduced, the maintenance time is saved, the user experience is improved, and all modules can be replaced at one time, so that the quick power change action is realized; preferably, a battery explosion-proof valve 322 may be disposed on the battery module base 320, where the battery explosion-proof valve 322 faces opposite to the output electrode 324 of the battery module, and when thermal runaway occurs, the battery explosion-proof valve 322 faces the ground direction and opposite to the passenger cabin direction, so that the time point when the open fire occurs in the passenger cabin for the first time can be prolonged, and safety is improved.
Optionally, the first sealing flange 321 has magnetism, and the first sealing flange 321 is adsorbed on the outer surface of the bottom protection member 200 away from the accommodating cavity by a magnetic attraction force, so that the outer surface of the bottom protection member 200 is in sealing connection with the first sealing flange 321, where the magnetic attraction force is greater than the gravity of the battery module 300.
In the above embodiment, the first sealing flange 321 has magnetism, and the outer surface of the bottom protection member 200 is provided with a structure that can be attracted to the magnetism of the first sealing flange 321, so that the battery module 300 is in sealing connection with the bottom protection member 200, and the connection mode has a simple structure, is not easy to fail, improves the stability of the connection component, is simple and applicable, and improves the replacement speed of the battery module 300.
Alternatively, the bottom guard 200 has a magnetic force generation layer 220, the magnetic force generation layer 220 is provided with a first coil 221 around the battery mounting hole 210, the battery module base 320 is provided with a first core part 323, the first core part 323 is penetrated in the battery mounting hole 210, and after the first coil 221 is electrified, the first core 323 receives a repulsive magnetic force opposite to the attractive magnetic force, wherein when the combined force of the gravity of the battery module 300 and the repulsive magnetic force is greater than the attractive magnetic force, the battery module 300 is separated from the bottom guard 200.
In the above embodiment, the coil and the core structure are added, when the first coil 221 is energized, an electromagnetic force is applied to the first core 323, the electromagnetic force is opposite to the attraction force of the first sealing flange 321, and the resultant force of the electromagnetic force and the gravity of the battery module and the attraction force of the first sealing flange 321 are mutually offset, so that the battery module 300 with the fault is maintained and replaced more labor-saving, and the replacement speed of the battery module 300 is further improved.
Optionally, the bottom guard 200 further comprises: a nonmetallic layer 230 and a steel plate layer 240, wherein the nonmetallic layer 230 is connected with the magnetic force generation layer 220, and the magnetic force generation layer 220 is connected with the steel plate layer 240; the steel plate layer 240 is bonded to the structural support 100 by means of a structural adhesive.
In the above embodiment, the nonmetallic layer 230 is located on the outer surface layer of the bottom protection part 200, so as to realize the effects of corrosion prevention and noise reduction, and the steel plate layer 240 on the inner surface plays a role of bearing.
Optionally, the method comprises: battery management system 400, electromagnetic controller 410, detection module 420, and alarm module 430; when the battery module 300 fails, the battery management system 400 may lock the failed battery module 300; the electromagnetic controller 410 transmits an electromagnetic control instruction to replace the failed battery module 300 to the battery management system 400; after receiving the electromagnetic control instruction, the battery management system 400 sends a detection command to the detection module 420, the detection module 420 detects whether the battery main loop is disconnected, and detects that the battery main loop is disconnected, the detection module 420 outputs a detection qualified signal to the battery management system 400, the battery management system 400 sends an execution signal to the electromagnetic controller 410, the execution signal instructs the electromagnetic controller 410 to send an energizing action instruction to the first coil 221 corresponding to the faulty battery module 300, the energizing action instruction is used for instructing the first coil 221 to execute an energizing action, and the energizing action is used for instructing to close the conduction switch of the first coil 221 so that the first coil 221 has current passing; if the detection module 420 detects that the battery main loop is not disconnected, the detection module 420 outputs a detection failure signal to the battery management system 400, and the battery management system 400 sends an alarm signal to the alarm module 430, wherein the alarm signal instructs the alarm module 430 to send out an alarm action so as to remind a driver and terminate the working procedure of replacing the failed battery module 300.
Optionally, an electrical control box 500 is also included; the bottom protection piece 200 is provided with a control box mounting opening 250, the electric control box 500 comprises a control box main body and a control box base, the control box base is provided with a second sealing flanging and a second core part, the control box main body penetrates through the control box mounting opening 250 and is arranged in the accommodating cavity, the second sealing flanging is magnetic and is attracted with the bottom protection piece, the attraction magnetic force is larger than the gravity of the electric control box, so that the electric control box is in sealing connection, the magnetic force generating layer is provided with a second coil around the control box mounting opening 250, the second core part penetrates through the control box mounting opening 250, and after the second coil is electrified, the second core is subjected to repulsive magnetic force opposite to the attraction magnetic force, wherein when the combined force of the gravity of the electric control box 500 and the repulsive magnetic force is larger than the attraction magnetic force, the electric control box 500 is separated from the bottom protection piece.
In the above embodiment, the electrical control box 500 and the battery module 300 have the same sealing connection manner, so that the electrical control box 500 can be replaced quickly when a fault occurs.
Optionally, a bottom pallet 600 is further included, wherein one end of the bottom pallet 600 is hinged to the bottom guard 200, and the opposite end is detachably connected to the bottom guard 200.
In the above embodiment, the bottom supporting plate 600 is added between the bottom protecting member 200 and the ground, so as to prevent the splashing corrosion of the dust and muddy water on the ground to the battery pack, and also to support the base of the battery module 300, so that the structure of the invention is safer and more reliable, and meanwhile, the bottom supporting plate 600 is abutted to the base of the battery module 300, so as to help the heat dissipation of the battery module 300.
Optionally, the cold night plate 700 further comprises a liquid cooling plate 700, wherein the cold night plate 700 is of a double-layer flexible structure, one layer is adhered to the bottom of the structural carrier 200, and the other layer is fully contacted with the battery module 300.
Optionally, a front assembly 800 and a rear assembly 900 are further included, and the structural carrier 100 is connected to the front assembly 800 and the rear assembly 900, respectively; the structural carrier 100 further comprises longitudinal beams 110, the longitudinal beams 110 are arranged at two sides of the structural carrier 100 at intervals, and the longitudinal beams 110 are of aluminum profile structures.
In the above embodiment, the front component 800 and the rear component 900 are in a high-pressure aluminum casting structure, and are connected and combined with the structural bearing member 100 by welding, so that a part of frame structure can be replaced, and the anti-collision requirement of the battery pack can be met; the longitudinal beams 110 can be cut into specified lengths according to actual needs, so that the sizes of the structural bearing members 100 can be adjusted by only changing the lengths of the longitudinal beams 110 on two sides according to vehicle types with different wheelbases, the configuration of different electric quantities is met, and the requirement of modularized development can be met.
Alternatively, the battery capacity of each battery module 300 corresponds to a corresponding driving range.
In the above embodiment, the battery capacity of each battery module 300 corresponds to the corresponding driving mileage, and the user can quickly install and uninstall the corresponding number of batteries according to the travel distance.
In another aspect, a vehicle includes a battery pack of the above embodiment in which the battery module is quickly replaceable.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A battery pack capable of rapidly replacing a battery module, comprising:
a structural carrier provided with a receiving cavity;
a bottom guard provided with one or more battery mounting ports, the bottom guard being sealingly connected to the structural carrier;
the battery module comprises a battery module body and a battery module base, wherein the battery module base is provided with a first sealing flanging, the battery module body penetrates through the battery mounting opening and is arranged in the accommodating cavity, the outer surface of the bottom protection piece, far away from the accommodating cavity, is in sealing connection with the first sealing flanging, the outer surface of the bottom protection piece is arranged opposite to the ground, and the number of the battery modules corresponds to the number of the battery mounting openings;
the first sealing flange is magnetic, and is adsorbed on the outer surface of the bottom protection piece far away from the accommodating cavity through attractive magnetic force, so that the outer surface of the bottom protection piece is in sealing connection with the first sealing flange, wherein the attractive magnetic force is greater than the gravity of the battery module.
2. The battery pack of claim 1, wherein the bottom guard has a magnetic force generating layer, the magnetic force generating layer is provided with a first coil around the battery module mounting opening, the battery module base is provided with a first core part, the first core part is penetrated in the battery mounting opening, the first core is subjected to a repulsive magnetic force opposite to the attractive magnetic force after the first coil is electrified, and the battery module is separated from the bottom guard when the resultant force of the gravity of the battery module and the repulsive magnetic force is greater than the attractive magnetic force.
3. The battery pack of claim 2, wherein the bottom guard further comprises: the non-metal layer is connected with the magnetic force generation layer, and the magnetic force generation layer is connected with the steel plate layer; the steel plate layer is bonded with the structural bearing piece through structural adhesive.
4. The battery pack of claim 2, wherein the battery pack comprises: the system comprises a battery management system, an electromagnetic controller, a detection module and an alarm module; when the battery module fails, the battery management system can lock the failed battery; the electromagnetic controller sends an electromagnetic control instruction for replacing the fault battery module to the battery management system; the battery management system receives an electromagnetic control instruction and then sends a detection command to a detection module, the detection module detects whether a battery main loop is disconnected or not, the detection module outputs a detection qualified signal to the battery management system, the battery management system sends an execution signal to an electromagnetic controller, the execution signal instructs the electromagnetic controller to send an energizing action instruction to a first coil corresponding to the fault battery module, the energizing action instruction is used for instructing the first coil to execute energizing action, and the energizing action is used for instructing to close a conduction switch of the first coil so that the first coil has current passing; if the detection module detects that the battery main loop is not disconnected, the detection module outputs a detection failure signal to the battery management system, the battery management system sends an alarm signal to the alarm module, and the alarm signal instructs the alarm module to send an alarm action so as to remind a driver and terminate a program for replacing the failed battery module.
5. The battery pack of claim 2, further comprising an electrical control box; the bottom protection piece is provided with a control box mounting opening, the electric control box comprises a control box main body and a control box base, the control box base is provided with a second sealing flanging and a second iron core, the control box main body penetrates through the control box mounting opening and is arranged in the accommodating cavity, the second sealing flanging is magnetic and is attracted with the bottom protection piece, the attraction magnetic force is larger than the gravity of the electric control box, so that the electric control box is in sealing connection, a second coil is arranged around the control box mounting opening, the second iron core penetrates through the control box mounting opening, the second iron core is subjected to the attraction magnetic force opposite to the attraction magnetic force after the second coil is electrified, and the electric control box is separated from the bottom protection piece when the resultant force of the gravity of the electric control box and the attraction magnetic force is larger than the attraction magnetic force.
6. The battery pack of any one of claims 1 to 5, further comprising a bottom bracket having one end hinged to the bottom guard and an opposite end removably connected to the bottom guard.
7. The battery pack of claim 1, wherein the battery capacity of each battery module corresponds to a corresponding driving range.
8. The battery pack of claim 1, further comprising a front assembly and a rear assembly, wherein the structural carrier is connected to the front assembly and the rear assembly, respectively; the structure bearing piece further comprises longitudinal beams, the longitudinal beams are arranged on two sides of the structure bearing piece at intervals, and the longitudinal beams are of aluminum profile structures.
9. A vehicle comprising a battery pack according to any one of claims 1 to 8, wherein the battery pack is capable of being replaced quickly.
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| CN114374035B true CN114374035B (en) | 2024-03-15 |
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