CN117547198B - Intelligent street sweeper lithium battery pack - Google Patents
Intelligent street sweeper lithium battery pack Download PDFInfo
- Publication number
- CN117547198B CN117547198B CN202410046040.3A CN202410046040A CN117547198B CN 117547198 B CN117547198 B CN 117547198B CN 202410046040 A CN202410046040 A CN 202410046040A CN 117547198 B CN117547198 B CN 117547198B
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- Prior art keywords
- frame
- sliding
- fixedly arranged
- air bag
- battery pack
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 27
- 241001417527 Pempheridae Species 0.000 title claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 230000009471 action Effects 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 20
- 238000009423 ventilation Methods 0.000 claims description 16
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 9
- 238000010408 sweeping Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/24—Floor-sweeping machines, motor-driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4002—Installations of electric equipment
- A47L11/4005—Arrangements of batteries or cells; Electric power supply arrangements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4002—Installations of electric equipment
- A47L11/4008—Arrangements of switches, indicators or the like
-
- 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
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of lithium battery packs, and discloses an intelligent street sweeper lithium battery pack which comprises a vehicle body, and a battery pack fixedly arranged in the vehicle body, wherein the battery pack comprises a shell, a wire harness plate and a plurality of electric cores, a support plate frame is arranged below the wire harness plate, a slide rail assembly is arranged on the wire harness plate, a plastic outer frame is arranged on the support plate frame, an air bag I is arranged in the plastic outer frame, an air bag II is arranged between the electric cores, and the air bag I and the air bag II are connected through a rubber pipeline; the plastic frame one side is installed and is taken a breath the sleeve, and sleeve internally mounted has the piston rod of taking a breath, and the sleeve other end of taking a breath is installed and is inhaled pipeline and gas-supply pipeline, and casing both sides are inside to be provided with the cavity, and install the cooling tube in the cavity, this intelligence street sweeper lithium cell group utilizes gasbag two in order to detect electric core temperature, utilizes pipeline and gas-supply pipeline of breathing a breath in order to take a breath to the inside battery group, in order to reach the purpose of cooling, effectively prevent the overheated situation of electric core charging in-process.
Description
Technical Field
The invention relates to the technical field of lithium battery packs, in particular to an intelligent street sweeper lithium battery pack.
Background
The sweeping robot is intelligent household equipment, is mainly used for automatically sweeping the ground, reduces the frequency and intensity of manual sweeping, can comprehensively or locally sweep the ground through remote control or autonomous navigation, effectively removes dust, dirt and other sundries, and meanwhile has the functions of automatic charging, timing sweeping and the like, and provides convenient and efficient cleaning service for users; the battery packs commonly used for the sweeping robot mainly comprise the following components: the polymer lithium ion battery has the advantages of small volume, low self-discharge rate and charge and use at the same time, but has poor stability; the nickel-hydrogen battery has better safety and stability, but larger volume, and can not be charged quickly, and can be used immediately after being charged; the lithium iron phosphate power battery integrates the advantages of the two batteries, and has the advantages of small volume, good stability, convenient use and high temperature resistance;
the lithium battery pack has the advantages of long cycle life, good low-temperature discharge performance, strong charge holding capacity, strong continuous running capacity and the like, most of the existing sweeping robots use the lithium battery pack as a power supply, as the internal structure of the lithium battery pack is composed of a positive electrode, a negative electrode, a diaphragm and electrolyte, certain resistance can be generated in the battery in the charging and discharging process, namely, internal resistance, energy loss can be generated when current passes through the internal resistance, the losses can be released in a thermal mode, the temperature of the lithium battery pack is increased, the temperature rise reaction under normal conditions does not influence the normal use of the lithium battery pack, but the battery cells in the lithium battery pack can be aged along with the increase of the service time, and then when the lithium battery pack is charged, the temperature in the battery pack is increased, chemical substances in part of the battery cells can be changed rapidly to generate gas, and as the battery cells are high-sealing products, the gas can not be discharged, the shell can be expanded and deformed, so that larger space can be stored, the expansion phenomenon can be generated, the expansion phenomenon of the lithium battery pack can be gradually increased along with the further increase of the temperature, and the expansion phenomenon of the battery pack can be called thermal expansion, and the battery pack can be safely generated.
Disclosure of Invention
The invention aims to provide an intelligent street sweeper lithium battery pack so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the intelligent street sweeper lithium battery pack comprises a vehicle body, and is fixedly arranged in the vehicle body, wherein the battery pack comprises a shell, a wire harness plate and a plurality of electric cores, a plurality of support plate frames are arranged below the wire harness plate, the support plate frames are positioned above the electric cores, a plurality of sliding rail assemblies are fixedly arranged on the wire harness plate, the support plate frames are in limiting sliding in the sliding rail assemblies, a plastic outer frame is fixedly arranged on the support plate frames, an air bag I is fixedly arranged in the plastic outer frame, an air bag II is arranged between every two adjacent electric cores, and the air bag I is connected with the air bag II through a rubber pipeline;
the air bag I is connected with a moving part, N pole magnetic blocks and S pole magnetic blocks are parallelly arranged on the moving part, a ventilation sleeve is fixedly arranged on one side of the plastic outer frame, a piston rod which is in sliding connection with the inner wall of the ventilation sleeve is arranged in the ventilation sleeve, the end part of the piston rod is positioned in the plastic outer frame, a limit frame is fixedly arranged at the end part of the piston rod, a sliding part is arranged in the limit frame, an S pole annular magnet is arranged on the sliding part, an air suction pipeline and an air transmission pipeline are parallelly arranged at the other end of the ventilation sleeve, cavities are formed in two sides of the shell, cooling pipes which are communicated with a cooling system of a vehicle body are arranged in the cavities, and the end part of the air suction pipeline and the cavities are in a communicating state, wherein one-way valves I are arranged on the air suction pipeline and the air transmission pipeline.
Preferably, the moving member comprises a moving frame mounted on the first air bag, the moving frame is in sliding connection with the inner wall of the plastic outer frame, a partition plate is fixedly mounted on the moving frame, and the N pole magnetic block and the S pole magnetic block are mounted on the partition plate, wherein the N pole magnetic block is located above the S pole magnetic block.
Preferably, the sliding piece comprises a sliding block body arranged inside the limiting frame, the sliding block body is in sliding connection with the inner wall of the limiting frame, a connecting plate frame is fixedly arranged on one side of the sliding block body, the S-pole ring magnet is fixedly arranged on the connecting plate frame, telescopic columns are fixedly arranged on two sides of the connecting plate frame, an adjusting groove is formed in the inner wall of the plastic outer frame, and the end part of each telescopic column is positioned inside the adjusting groove and is in limiting sliding in the adjusting groove.
Preferably, the adjusting groove comprises a straight running area, an inclined upward area communicated with the straight running area, a guide block, a sliding area communicated with the inclined upward area and a descending area communicated with the sliding area and the straight running area.
Preferably, the guide block is fixedly installed at the intersection of the inclined upward region and the sliding region, one side of the guide block, which is positioned in the inclined upward region, is an inclined surface, and one side of the guide block, which is positioned in the sliding region, is a right-angle surface.
Preferably, the two ends of the shell are fixedly provided with a vent pipe, the vent pipe is provided with a second one-way valve, and the air outlet end of the first air bag is provided with a pressure safety valve.
Preferably, the top of the shell is fixedly provided with a plurality of limiting shaft bodies, the wire harness plate is provided with a plurality of pressing plates, the bottom of each pressing plate is fixedly provided with a connecting wire plate which is used for being electrically communicated with the battery cell, and the pressing plates are in sliding connection with the limiting shaft bodies.
Preferably, the plastic frame top fixed mounting has action grillage, just action grillage tip is isosceles trapezoid shape setting, fixed mounting has guide frame on the pencil board, and guide frame internally mounted has the sliding rod frame, just sliding rod frame one end is trapezoidal form setting, and is located the motion trail of action grillage tip.
Preferably, the other end of the sliding rod frame is symmetrically provided with a force application rod frame, and two sides of the pressing plate are fixedly provided with force bearing blocks, wherein the end parts of the force bearing blocks are positioned on the motion track of the force application rod frame, and the end parts of the force application rod frame and the force bearing blocks are arranged in a trapezoid shape.
Preferably, the second air bag and the adjacent two electric cores are fixed through double faced adhesive tape.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes the second air bag to detect the temperature of the battery cell, and makes the first air bag expand under the action of the rubber pipeline, and drives the movable frame and the partition board in the movable frame to adjust the position through the expansion acting force of the first air bag, and generates magnetic acting force on the S-pole annular magnet through the S-pole magnetic block and the N-pole magnetic block, and the telescopic columns on the two sides of the connecting plate frame drive the piston rod to reciprocate through the sliding block under the action of the adjusting groove, and the air suction pipeline and the air transmission pipeline are utilized to ventilate the inside of the battery pack, so as to achieve the aim of reducing the temperature and effectively prevent the overheat condition in the battery cell charging process;
according to the invention, the electric connection of the battery cells is controlled by the pressing plate, the plastic outer frame drives the action plate frame to perform lifting action in the thermal expansion process of the battery cells under the action of the support plate frame, and the force application rod frame applies acting force to the force bearing block body by the sliding rod frame, so that the electric connection between the pressing plate and the battery cells is in a disconnected state, and the electric protection unit is controlled to cut off the charging work between the electric protection unit and the power supply, thereby achieving the purpose of protecting the battery pack and improving the safety in the charging process of the battery pack.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a battery pack according to the present invention with a structure separated;
FIG. 3 is a schematic view of the internal structure of the side wall of the housing according to the present invention;
FIG. 4 is a schematic view of the internal part of the housing of the present invention;
FIG. 5 is a schematic diagram of the structure of the second air bag and the battery cell according to the present invention;
FIG. 6 is a schematic view of a wiring harness structure of the present invention;
FIG. 7 is a schematic view of the structure of the support ledge and the mechanical components thereon of the present invention;
FIG. 8 is a schematic view of a partially cut-away structure of a plastic frame according to the present invention;
FIG. 9 is a schematic view of the first air bag and the moving frame thereon according to the present invention;
FIG. 10 is a schematic view of a moving member and a sliding member according to the present invention;
FIG. 11 is a schematic view of the structure of the regulating tank of the present invention;
FIG. 12 is a schematic view of a ventilation sleeve of the present invention partially cut away;
FIG. 13 is an enlarged schematic view of the area A of FIG. 4 according to the present invention;
FIG. 14 is a schematic view of a platen structure of the present invention;
FIG. 15 is a schematic view of a partially cut-away configuration of a platen of the present invention.
In the figure: 1-a vehicle body; 2-battery pack; 21-a housing; 211-cavities; 212-cooling pipes; 213-ventilation duct; 214-second check valve; 22-harness plates; 23-cell; 3-supporting plate frame; 31-a plastic outer frame; 4-first air bag; 41-a pressure relief valve; 5-an air bag II; 6-rubber tubing; 7-a moving member; 71-N pole magnetic blocks; 72-S pole magnetic blocks; 73-moving the frame; 74-a separator; 8-a ventilation sleeve; 81-a piston rod; 82-limiting frames; 83-a slider; 831-glide blocks; 832-connecting plate rack; 833—a telescopic column; 834-a conditioning tank; 835-straight region; 836-sloped upward region; 837-a guide block; 838-glide zone; 839-a descent region; 84-S pole ring magnet; 85-an air suction pipe; 86-gas pipeline; 87-one-way valve one; 9-a slide rail assembly; 10-limiting the shaft body; 11-pressing plates; 111-connecting wire plates; 12-action plate frame; 13-a guide frame; 14-a sliding bar frame; 15-a force application bar frame; 16-stressed block.
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.
Referring to fig. 1-15, the present invention provides a technical solution: the invention provides an intelligent street sweeper lithium battery pack, which is correspondingly improved aiming at the technical problems in the background art, so as to solve the problem of battery cell expansion caused by temperature rise during charging of the lithium battery pack, and comprises a vehicle body 1, a battery pack 2 fixedly arranged in the vehicle body 1, wherein the battery pack 2 comprises a shell 21, a wire harness plate 22 and a plurality of battery cells 23, further description, the shell 21 mainly comprises two end plates, two side plates, a bottom plate and a top plate, wherein the wire harness plate 22 is fixedly connected with the top (namely the top plate) of the shell 21, a plurality of support plate frames 3 are arranged below the wire harness plate 22, further description, the number of the support plate frames 3 is the same as the number of the battery cells 23 and are in a one-to-one corresponding state, the support plate frames 3 are positioned above the battery cells 23, a plurality of slide rail assemblies 9 are fixedly arranged on the wire harness plate 22, correspondingly, the number of the slide rail assemblies 9 is the same as the number of the battery cells 23, the slide rail components 9 are composed of four slide rails which are respectively distributed on two sides of the support plate frame 3, the support plate frame 3 slides in the slide rail components 9 in a limiting manner, wherein the support plate frame 3 is close to the electric core 23, a plastic outer frame 31 is fixedly arranged on the support plate frame 3, an air bag I4 is fixedly arranged in the plastic outer frame 31, an air bag II 5 is arranged between two adjacent electric cores 23, the air bag II 5 is fixedly arranged between the two adjacent electric cores 23 through double faced adhesive tape, the air bag I4 and the air bag II 5 are connected through a rubber pipeline 6, the temperature of the electric cores 23 rises during the charging process of the lithium battery pack 2, the air molecules in the air bag II 5 between the electric cores 23 become active at high temperature, and the air bag I4 is inflated through the rubber pipeline 6, further explaining that the air outlet end of the air bag I4 in the invention is provided with a pressure safety valve 41, so as to ensure that the first airbag 4 is in a safe expansion range, the two ends of the shell 21 are fixedly provided with the air pipelines 213, and the air pipelines 213 are provided with the second check valve 214 so as to ensure that hot air in the shell 21 is rapidly emitted to the external environment;
wherein the first air bag 4 is connected with a moving member 7, as a further limitation of the invention, the moving member 7 comprises a moving frame 73 arranged on the first air bag 4 (bonded by double faced adhesive tape), the moving frame 73 is in sliding connection with the inner wall of the plastic outer frame 31, a baffle plate 74 is fixedly arranged on the moving frame 73, an N pole magnetic block 71 and an S pole magnetic block 72 are arranged on the baffle plate 74 in parallel, the N pole magnetic block 71 is positioned above the S pole magnetic block 72, one side of the plastic outer frame 31 is fixedly provided with a ventilation sleeve 8, a piston rod 81 which is in sliding connection with the inner wall of the ventilation sleeve 8 is arranged in the ventilation sleeve 8, the end part of the piston rod 81 is positioned in the plastic outer frame 31, a limiting frame 82 is fixedly arranged at the end part of the piston rod 81, a sliding member 83 is arranged in the limiting frame 82, the other end of the ventilation sleeve 8 is parallelly provided with a suction pipeline 85 and a gas pipeline 86, the inside of both sides of the shell 21 is provided with a cavity 211, a cooling pipe 212 communicated with the cooling system of the vehicle body 1 is arranged in the cavity 211, the end part of the air suction pipeline 85 is communicated with the cavity 211, a one-way valve I87 is arranged on each of the air suction pipeline 85 and the air transmission pipeline 86, as a further limitation of the invention, the sliding part 83 comprises a sliding block 831 arranged in the limiting frame 82, the sliding block 831 is in sliding connection with the inner wall of the limiting frame 82, one side of the sliding block 831 is fixedly provided with a connecting plate bracket 832, wherein the connecting plate bracket 832 is fixedly provided with an S-pole ring magnet 84, both sides of the connecting plate bracket 832 are fixedly provided with telescopic columns 833, the inner wall of the plastic outer frame 31 is provided with an adjusting groove 834, the end part of the telescopic column 833 is positioned in the adjusting groove 834 and is in limiting sliding in the adjusting groove 834, as a further limitation of the invention, the adjusting slot 834 comprises a straight-going region 835, an inclined upward region 836 communicated with the straight-going region 835, a guide block 837, a sliding region 838 communicated with the inclined upward region 836, and a descending region 839 communicated with the sliding region 838 and the straight-going region 835, wherein the guide block 837 is fixedly arranged at the intersection of the inclined upward region 836 and the sliding region 838, one side of the guide block 837 positioned at the inclined upward region 836 is an inclined surface, one side of the sliding region 838 is a right-angle surface, and further, the end part of the telescopic column 833 is positioned at the initial end of the straight-going region 835, namely, the communication part with the descending region 839 in the initial state;
in the charging process of the battery pack 2, the temperature of the battery cell 23 is raised, the air bags two 5 between the battery cells 23 are activated at high temperature, the air bags one 4 are inflated through the rubber pipeline 6, further explaining that before the air bags one 4 are not inflated, the S-pole ring magnet 84 is not on the magnetic tracks of the N-pole magnet 71 and the S-pole magnet 72, when the air bags one 4 are inflated, the moving frame 73 moves in the plastic frame 31 in a limited manner, that is, the partition 74 moves synchronously with the moving frame 73, the N-pole magnet 71 and the S-pole magnet 72 on the partition 74 move synchronously with the partition 74, and at this time, the S-pole ring magnet 84 is located on the magnetic track of the S-pole magnet 72, that is, the S-pole magnet 72 generates a repulsive force to the S-pole ring magnet 84, so that the telescopic columns 833 connected to both sides of the connecting 832 move along the straight-line region 835 and the inclined upward region 836, when moving to the end of the upward-tilting zone 836 (i.e., in the sliding zone 838), the S-pole ring magnet 84 leaves the magnetic track of the S-pole magnet 72 and is located on the magnetic track of the N-pole magnet, which further illustrates that, when the end of the telescopic column 833 moves from the upward-tilting zone 836 into the sliding zone 838, it passes through the inclined surface of the guide block 837, and when the repulsive force of the S-pole ring magnet 84 is converted from the repulsive force of the S-pole magnet 72 to the attractive force of the N-pole magnet 71, the telescopic column 833 may move downward under the action of gravity, but the right-angle surface of the guide block 837 may block its descending action, and when the attractive force of the N-pole magnet 71 to the S-pole ring magnet 84 is generated, the end of the telescopic column 833 moves from the sliding zone 838 to the descending zone 839, and when the telescopic column 833 reaches the descending zone 839, the air in the cavity 211 (the air in the cavity 211 is cooled by the cooling pipe 212) is pumped into the ventilation sleeve 8 under the action of the air suction pipe 85, and the cooling air is conveyed into the shell 21 under the action of the air conveying pipe 86, so that the purpose of air exchange is realized, and the interior of the shell 21 is assisted to be cooled rapidly;
in order to avoid explosion and combustion of the thermal expansion battery core 23 during charging, the invention designs that a plurality of limiting shaft bodies 10 are fixedly arranged at the top of a shell 21, a plurality of pressing plates 11 are arranged on a wire harness plate 22, a connecting wire plate 111 for electric communication with the battery core 23 is fixedly arranged at the bottom of the pressing plate 11, further describing that the connecting wire plate 111 is equivalent to a connecting wire in the prior art, in order to ensure the connection stability between the connecting wire and the battery core 23 during connection, nuts are often arranged, but the invention limits the connection between the connecting wire plate 111 and the battery core 23 through an insulating pressing plate 11, the pressing plate 11 is connected with the limiting shaft bodies 10 in a sliding way, an action plate frame 12 is fixedly arranged at the top of the plastic outer frame 31, the end part of the action plate frame 12 is in an isosceles trapezoid shape, a guide frame 13 is fixedly arranged on the guide frame 13, a sliding rod frame 14 is arranged in the interior of the guide frame 13, one end of the sliding rod frame 14 is in a trapezoid shape and is positioned on a movement track of the end part of the action plate 12, the other end part of the sliding rod frame 14 is positioned on the action plate 12, a force applying frame 16 is symmetrically arranged at the end part of the pressing rod frame 16, and force applying blocks 16 are arranged at the two sides of the pressing rod frame 16 and the force applying frame 16 are arranged at the end part of the action frame 16;
specifically, when a thermal expansion condition occurs in a single electric core 23, the shape of the electric core 23 is deformed, and then the top of the electric core 23 is contacted with the supporting plate frame 3 and applies an acting force to the electric core, the supporting plate frame 3 is in ascending motion under the action of the sliding rail assembly 9, in the ascending process, the plastic outer frame 31 on the supporting plate frame 3 is synchronously moved along with the supporting plate frame, and the end part of the acting plate frame 12 on the top of the plastic outer frame 31 applies an acting force to the end part of the sliding rod frame 14, so that the sliding rod frame 14 is in limiting motion in the guide frame 13 and drives the force applying rod frame 15 to apply an acting force to the stressed blocks 16 on two sides of the pressing plate 11, namely, the pressing plate 11 is in limiting ascending motion under the action of the limiting shaft body 10, the connecting wire plate 111 on the bottom of the pressing plate 11 is not contacted with the electric core 23, namely, the electric core 23 is in a power-off condition, the electric core 23 is ensured not to be continuously expanded, meanwhile, the current protection system of the battery pack 2 is started, the charging work between the power supply is cut off, and the subsequent workers perform maintenance, and the position condition of the connecting wire plate 111 is observed, so that the position of the electric core 23 is found conveniently.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (7)
1. Intelligent street sweeper lithium battery pack, including automobile body (1), fixed mounting is in inside group battery (2) of automobile body (1), group battery (2) include casing (21), pencil board (22) and a plurality of electric core (23), its characterized in that: a plurality of support plates (3) are arranged below the wire harness plate (22), the support plates (3) are arranged above the electric cores (23), a plurality of slide rail assemblies (9) are fixedly arranged on the wire harness plate (22), the support plates (3) slide in the slide rail assemblies (9) in a limited manner, a plastic outer frame (31) is fixedly arranged on the support plates (3), an air bag I (4) is fixedly arranged in the plastic outer frame (31), an air bag II (5) is arranged between two adjacent electric cores (23), and the air bag I (4) and the air bag II (5) are connected through a rubber pipeline (6);
the air bag I (4) is connected with a moving part (7), an N pole magnet (71) and an S pole magnet (72) are parallelly arranged on the moving part (7), a ventilation sleeve (8) is fixedly arranged on one side of the plastic outer frame (31), a piston rod (81) which is in sliding connection with the inner wall of the ventilation sleeve (8) is arranged in the ventilation sleeve (8), the end part of the piston rod (81) is positioned in the plastic outer frame (31), a limiting frame (82) is fixedly arranged at the end part of the piston rod (81), a sliding part (83) is arranged in the limiting frame (82), an S pole ring magnet (84) is arranged on the sliding part (83), an air suction pipeline (85) and an air transmission pipeline (86) are parallelly arranged at the other end of the ventilation sleeve (8), a cavity (211) is arranged in the two sides of the shell (21), a cooling pipe (212) which is communicated with a cooling system of the vehicle body (1) is arranged in the cavity (211), and the end part of the air suction pipeline (85) is in a communicating state with the cavity (211), wherein the pipeline (85) and the air transmission pipeline (86) are provided with a one-way valve (87); a plurality of limiting shaft bodies (10) are fixedly arranged at the top of the shell (21), a plurality of pressing plates (11) are arranged on the wire harness plate (22), a connecting wire plate (111) used for being electrically communicated with the battery cells (23) is fixedly arranged at the bottom of the pressing plates (11), and the pressing plates (11) are in sliding connection with the limiting shaft bodies (10); the plastic frame (31) is characterized in that an action plate frame (12) is fixedly arranged at the top of the plastic frame (31), the end part of the action plate frame (12) is in an isosceles trapezoid shape, a guide frame (13) is fixedly arranged on the wire harness plate (22), a sliding rod frame (14) is arranged in the guide frame (13), and one end of the sliding rod frame (14) is in a trapezoid shape and is positioned on the movement track of the end part of the action plate frame (12); the force application rod frames (15) are symmetrically arranged at the other ends of the sliding rod frames (14), and the stress blocks (16) are fixedly arranged at two sides of the pressing plate (11), wherein the ends of the stress blocks (16) are located on the movement track of the force application rod frames (15), and the ends of the force application rod frames (15) and the ends of the stress blocks (16) are arranged in a trapezoid shape.
2. The intelligent sweeper lithium battery pack of claim 1, wherein: the movable piece (7) comprises a movable frame (73) arranged on the first air bag (4), the movable frame (73) is connected with the inner wall of the plastic outer frame (31) in a sliding mode, a partition plate (74) is fixedly arranged on the movable frame (73), and both the N pole magnetic block (71) and the S pole magnetic block (72) are arranged on the partition plate (74), wherein the N pole magnetic block (71) is located above the S pole magnetic block (72).
3. The intelligent sweeper lithium battery pack of claim 2, wherein: the sliding piece (83) comprises a sliding block body (831) arranged inside a limiting frame (82), the sliding block body (831) is in sliding connection with the inner wall of the limiting frame (82), a connecting plate frame (832) is fixedly arranged on one side of the sliding block body (831), an S-pole annular magnet (84) is fixedly arranged on the connecting plate frame (832), telescopic columns (833) are fixedly arranged on two sides of the connecting plate frame (832), an adjusting groove (834) is formed in the inner wall of the plastic outer frame (31), and the end part of the telescopic column (833) is positioned inside the adjusting groove (834) and is in limiting sliding inside the adjusting groove.
4. The intelligent sweeper lithium battery pack of claim 3, wherein: the conditioning tank (834) includes a straight run region (835), an inclined upward region (836) in communication with the straight run region (835), a guide block (837), a skid region (838) in communication with the inclined upward region (836), and a drop region (839) in communication with the skid region (838) and the straight run region (835).
5. The intelligent sweeper lithium battery pack according to claim 4, wherein: the guide block (837) is fixedly arranged at the intersection of the inclined upward region (836) and the sliding region (838), one side of the guide block (837) positioned in the inclined upward region (836) is an inclined surface, and one side of the guide block positioned in the sliding region (838) is a right-angle surface.
6. The intelligent sweeper lithium battery pack of claim 1, wherein: the two ends of the shell (21) are fixedly provided with vent pipelines (213), the vent pipelines (213) are provided with one-way valves II (214), and the air outlet end of the air bag I (4) is provided with a pressure safety valve (41).
7. The intelligent sweeper lithium battery pack of claim 1, wherein: the second air bag (5) and the adjacent two electric cores (23) are fixed through double faced adhesive tape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410046040.3A CN117547198B (en) | 2024-01-12 | 2024-01-12 | Intelligent street sweeper lithium battery pack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410046040.3A CN117547198B (en) | 2024-01-12 | 2024-01-12 | Intelligent street sweeper lithium battery pack |
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| CN117547198B true CN117547198B (en) | 2024-03-19 |
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| DE102019101281A1 (en) * | 2019-01-18 | 2020-07-23 | Vorwerk & Co. Interholding Gmbh | Accumulator and soil cultivation device with an accumulator |
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| CN117547198A (en) | 2024-02-13 |
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