CN111029503A - High-safety lithium battery - Google Patents
High-safety lithium battery Download PDFInfo
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- CN111029503A CN111029503A CN201911270797.6A CN201911270797A CN111029503A CN 111029503 A CN111029503 A CN 111029503A CN 201911270797 A CN201911270797 A CN 201911270797A CN 111029503 A CN111029503 A CN 111029503A
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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
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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
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/60—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
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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
- H01M10/60—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
- H01M10/6567—Liquids
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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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
- 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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- Microelectronics & Electronic Packaging (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a high-safety lithium battery, which comprises a box-packed battery pack and a battery pack mounting frame convenient for mounting and positioning the box-packed battery pack, a plurality of groups of battery main bodies are arranged in the case-packed battery pack, the case-packed battery pack comprises a battery installation box in a cuboid box-shaped structure and two groups of sealing box covers which are respectively arranged at the upper side and the lower side of the battery installation box, the upper side and the lower side of the battery installation box are provided with coupling grooves for installing the sealing box covers, and the battery installation box is internally provided with a longitudinal partition plate and a transverse partition plate which are mutually crossed, the longitudinal partition plate and the transverse partition plate divide the space in the battery installation box into a plurality of groups of tabling grooves which are in rectangular arrays and are used for respectively accommodating a plurality of groups of battery main bodies, one side of the sealing box cover close to the conductive plugboard is provided with a plurality of groups of electrode patches for conducting the end part of the battery main body in a rectangular array. This high security lithium cell, battery installation wiring is convenient and safe and reliable, has higher practical value.
Description
Technical Field
The invention belongs to the technical field of lithium batteries, and particularly relates to a high-safety lithium battery.
Background
China becomes the first automobile consumer country in the world, and the problems of energy shortage, environmental pollution and the like are increasingly prominent. The lithium ion power battery which gradually changes the original energy consumption structure, more reasonably and effectively utilizes energy and has the advantages of high energy density, long cycle life, greenness, no pollution and the like becomes one of the inevitable choices in the automobile industry in the future.
However, because the lithium battery has high energy and poor material stability, the lithium battery is easy to have safety problems, and in the use process of the lithium ion power battery, the inside of the grouped batteries is easy to cause extrusion, vibration, high temperature and even internal short circuit. This causes heat generation, smoke generation, ignition, and even explosion inside the battery. And huge property and personal threats are brought to users. Therefore, improving the safety performance of the battery becomes a focus of attention, and becomes a focus of research of various large lithium battery manufacturers.
The circuit wiring that exists when current battery is installed in groups is connected inconveniently, and the poor problem of installation stability, and the battery group easily takes place the overheated condition when using and leads to the trouble, influences battery health, triggers naked light even under the severe condition to lead to the explosion, for this reason, guarantee battery safety is the problem that now awaits a urgent need to solve.
Disclosure of Invention
The present invention is directed to a high-safety lithium battery, which solves the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a high-safety lithium battery comprises a box-packed battery pack and a battery pack mounting frame convenient for mounting and positioning the box-packed battery pack, wherein a plurality of groups of battery main bodies are mounted in the box-packed battery pack;
the box-packed battery pack comprises a battery installation box in a cuboid box-shaped structure and two groups of sealed box covers respectively installed on the upper side and the lower side of the battery installation box, coupling grooves for installing the sealed box covers are formed in the upper side and the lower side of the battery installation box, longitudinal partition plates and transverse partition plates which are mutually crossed are arranged in the battery installation box, the space in the battery installation box is divided into a plurality of groups of embedding grooves in a rectangular array by the longitudinal partition plates and the transverse partition plates, and a plurality of groups of battery main bodies are respectively accommodated in the embedding grooves;
a plurality of groups of electrode patches for conducting the end part of the battery main body are arranged on one side of the sealed box cover close to the battery installation box in a rectangular array, a conductive inserting plate which is conducted with each group of electrode patches through a conducting wire is arranged on one side of the sealed box cover, a conductive inserting groove part for inserting the conductive inserting plate is formed in one side of the battery installation box, and a wiring groove which is electrically connected with the upper conductive inserting groove part and the lower conductive inserting groove part is formed in the battery installation box;
one side that the wiring groove was kept away from to the battery install bin installs a set of detecting element case, the detecting element incasement is provided with the detecting element who is used for data processing's singlechip, detecting box assembled battery, is used for data transmission's signal transmission module and is used for the maintenance unit that the battery maintained, detecting element, signal transmission module and maintenance unit respectively with singlechip electric connection.
Preferably, the two sides of the battery pack mounting frame are provided with air guide structures, a battery pack mounting groove for mounting the box-mounted battery pack is formed in the battery pack mounting frame, and the two sides of the battery pack mounting frame are provided with side air guide substrates for mounting the air guide structures.
Preferably, the air guide structure comprises a plurality of air guide fans arranged on the side air guide substrate in a rectangular array manner and a dustproof filter screen arranged on one side of the side air guide substrate, which is far away from the box-packed battery pack.
Preferably, the side of the battery installation box corresponding to the position of the wind guide fan on the battery pack installation frame is provided with an air inlet for installing an air inlet filter screen, the position of the longitudinal partition board facing each group of embedded grooves is provided with an air outlet for communicating the air inlet and installing an air outlet filter screen, a cooling branch pipe for circulating cooling liquid is installed in the transverse partition board, and the cooling branch pipe is communicated with a water cooling pipeline installed outside the battery installation box.
Preferably, the one end symmetry that electrically conductive picture peg was kept away from to sealed case lid is provided with the magnetic connecting rod of the sealed case lid of two sets of perpendicular to, the one end that sealed case lid was kept away from to the magnetic connecting rod is provided with the electro-magnet, the battery install bin is kept away from one side of electrically conductive plug-in groove spare and is seted up the through-type spread groove that supplies the magnetic connecting rod to inhale inserted, and is two sets of the magnetic connecting rod of sealed case lid is packed into through-type spread.
Preferably, the detection unit includes a state loading unit for detecting an operating state of the battery and a fault detection unit for detecting a fault of the battery, the state loading unit includes a temperature sensor for detecting a temperature, a current sensor for detecting a current, and a voltage sensor for detecting a voltage, and the fault detection unit includes an electric spark sensor for detecting a spark and a smoke sensor for detecting a smoke concentration.
Preferably, the temperature sensor, the current sensor and the voltage sensor are matched with each group of battery main bodies installed in the embedding groove, and a plurality of groups of electric spark sensors and smoke sensors are arranged in the case-mounted battery pack; the signal transmission module comprises a data transmission module for wired signal transmission and a wireless signal transmission module for wireless signal transmission.
Preferably, the maintenance unit comprises a cooling protection unit for cooling protection of the battery main body and a fault protection unit for fault protection of the boxed battery pack; the cooling protection unit comprises a fan circuit switch electrically connected with the air guide fan, a circulating pump communicated with the water cooling pipeline and a refrigerating machine matched with the circulating pump to realize refrigeration, and the fault protection unit comprises a power limiting unit for limiting power and a fire extinguishing unit for realizing open fire extinguishment.
Preferably, the electrode patch comprises a conductive head and a spring part for driving the conductive head; the sealing box cover comprises a base plate and a limiting plate which is detachable from the base plate; the conductive head comprises a contact head in sliding fit with the limiting plate and a check ring arranged on the contact head, and the contact head protrudes out of the limiting plate and is used for conducting the end part of the battery main body; the two ends of the spring part are respectively abutted against the substrate and the contact head, and the substrate and the contact head are respectively provided with a concave hole for accommodating the spring part.
Preferably, the high security lithium cell still includes the card condition, and the group battery installation frame is equipped with the first draw-in groove with group battery mounting groove intercommunication, and one side that battery installation case was kept away from to sealed case lid is equipped with the second draw-in groove with the mounting groove intercommunication, and the upper and lower both ends of card condition are held respectively and are located in the first draw-in groove and the second draw-in groove.
The invention has the technical effects and advantages that: the high-safety lithium battery has a convenient installation mode, namely the electrode patches can be abutted against the battery main body by inserting the electrode patches into the battery main body and covering the sealed box cover, and the two groups of electrified conductive inserting plates are inserted into the conductive slot pieces to realize the connection of circuits at the wiring slots under the state that the electrode patches are abutted against the battery main body, so that the wiring trouble is reduced; the sealed box covers are arranged on two sides of the battery installation box and are limited by the conductive inserting plates which are inserted into the conductive inserting groove parts in a matched mode through the magnetic connecting rods, the magnetic connecting rods and the magnetic connecting rods are connected in a penetrating type connecting groove in an adsorbing mode through the electromagnet, separation in power failure is facilitated, the sealed box covers are arranged on two sides of the battery installation box to form a box-packed battery pack, and the box-packed battery pack is limited by the battery pack installation frame in a covering mode, so that installation stability is improved; the state loading unit is arranged to be matched with the maintenance unit to realize battery state recording and realize water cooling and air cooling when the temperature is too high; the setting of fault detection unit cooperates with the maintenance unit to realize the power limitation of battery naked light state and realize quick fire control, reduces the vehicle loss.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic exploded view of the packaged battery pack of the present invention;
FIG. 3 is a schematic view of a battery pack mounting frame structure of the present invention;
FIG. 4 is a schematic structural view of a battery mounting case according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;
FIG. 6 is a schematic block diagram of the circuit connection of the detection unit of the present invention;
FIG. 7 is a schematic block diagram of a maintenance unit circuit connection of the present invention;
FIG. 8 is an enlarged view of the seal case cover, the contact tip and the spring member of the present invention;
fig. 9 is a perspective view of a battery pack mounting frame, card assembly and sealed case lid of the present invention.
In the figure: 1 case-mounted battery pack, 2 battery pack mounting frames, 201 battery pack mounting groove, 202 side wind guide substrate, 3 wind guide fan, 301 dustproof filter screen, 4 battery mounting case, 401 embedding groove, 402 water cooling pipeline, 5 sealing case cover, 6 air inlet filter screen, 601 air outlet filter screen, 7 conductive inserting plate, 701 conductive inserting groove component, 8 magnetic attraction connecting rod, 801 through connecting groove, 9 battery main body, 901 electrode patch, 902 wiring groove, 10 detection element case, 11 single chip microcomputer, 12 detection unit, 13 signal transmission module, 14 state loading unit, 1401 temperature sensor, 1402 current sensor, 1403 voltage sensor, 15 fault detection unit, 1501 electric spark sensor, 1502 smoke sensor, 16 maintenance unit, 17 cooling protection unit, 1701 fan circuit switch, 1702 circulating pump, 1703 refrigerator, 18 fault protection unit, 1801 power limiting unit, 1802 fire extinguishing unit, 903 conductive head, 904 spring element, 905 contact head, 906 retainer ring, 203 clamping condition, 204 first clamping groove and 205 second clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The invention provides a high-safety lithium battery as shown in figures 1-9, which comprises a box-packed battery pack 1 and a battery pack mounting frame 2 for facilitating the installation and positioning of the box-packed battery pack 1, wherein a plurality of groups of battery main bodies 9 (the battery main bodies 9 can be of any type) are installed in the box-packed battery pack 1.
The case dress group battery 1 includes a set of battery install bin 4 that is cuboid box column structure and installs two sealed case lids 5 in battery install bin 4 upper and lower both sides respectively, the coupling groove that supplies two sealed case lids 5 to install is seted up respectively to battery install bin 4 upper and lower both sides, and the equidistance is provided with the vertical division board and the horizontal division board of multiunit intercrossing in battery install bin 4, and vertical division board and horizontal division board divide into the multiunit gomphosis groove 401 that is the rectangular array with battery install bin 4 inner space, multiunit be used for holding respectively in the gomphosis groove 401 and establish multiunit battery main part 9 (during concrete implementation, the mounting means that battery main part 9 installed in the gomphosis groove 401 can but is not limited to interference fit, and the gomphosis groove 401 needs the convex key structure at the edge of.
One side of the sealed box cover 5 close to the battery installation box 4 is provided with a plurality of groups of electrode patches 901 which are communicated with the end part of the battery main body 9 in a rectangular array, and one side of the sealed box cover 5 is provided with a conductive plugboard 7 which is communicated with each group of electrode patches 901 through a lead. The electric conduction slot part 701 that supplies electrically conductive picture peg 7 to peg graft is seted up to one side of battery install bin 4, battery install bin 4 is provided with the wiring groove 902 of two sets of electric conduction slot parts 701 about the electric connection, possesses convenient mounting means. When the battery installation box 4 is installed in the battery main body 9, and then the sealed box cover 5 is covered on the battery installation box 4, the electrode patch 901 can be abutted against the battery main body 9, and in the state that the electrode patch 901 is abutted against the battery main body 9, the two groups of electrified conductive inserting plates 7 are inserted into the conductive inserting groove pieces 701 to realize the connection of the circuit at the wiring groove 902, so that the wiring trouble is reduced.
One side that wiring groove 902 was kept away from to battery install bin 4 is installed a set of detecting element case 10, be provided with the singlechip 11 (when the concrete implementation, but singlechip 11 optional use is not limited to STM32F103C8T6 singlechip chip), the detecting element 12 of detecting box assembled battery 1, the maintenance unit 16 that is used for data transmission's signal transmission module 13 and is used for the battery to maintain in the detecting element case 10, detecting element 12, signal transmission module 13 and maintenance unit 16 respectively with singlechip 11 electric connection.
Specifically, the both sides of group battery installation frame 2 are provided with wind-guiding structure, and offer the group battery mounting groove 201 that supplies the incasement group battery 1 to pack into on the group battery installation frame 2, the both sides of group battery installation frame 2 are constructed the side wind-guiding base plate 202 that supplies the wind-guiding structure to install.
Specifically, the air guide structure comprises air guide fans 3 arranged on the side air guide substrate 202 in a rectangular array manner and a dustproof filter screen 301 arranged on one side of the side air guide substrate 202 far away from the case-packaged battery pack 1, wherein the dustproof filter screen 301 is used for covering all the air guide fans 3.
Specifically, the side of the battery installation box 4 is provided with an air inlet for installing an air inlet filter screen 6 corresponding to the position where the air guide fan 3 is installed on the battery pack installation frame 2, the longitudinal partition board is provided with an air outlet for communicating the air inlet and installing an air outlet filter screen 601 facing the position of each group of the embedding grooves 401, cooling branch pipes for circulating cooling liquid are installed in the transverse partition boards, and the cooling branch pipes of the plurality of groups of transverse partition boards are communicated with a water cooling pipeline 402 installed outside the battery installation box 4.
Specifically, the one end symmetry that sealed case lid 5 was close to battery install bin 4 one side and was kept away from electrically conductive picture peg 7 is provided with two sets of perpendicular to sealed case lid 5's magnetism and inhales connecting rod 8, the one end that sealed case lid 5 was kept away from to magnetism is inhaled connecting rod 8 and is provided with the electro-magnet (when concrete implementation, the electro-magnet model chooses for use according to the user's demand). One side of the battery installation box 4, which is far away from the conductive insertion groove part 701, is provided with two sets of through connection grooves 801 for inserting two sets of magnetic connecting rods 8, and the two sets of magnetic connecting rods 8 of the sealed box cover 5 penetrate through the through connection grooves 801 to be in magnetic butt joint. The sealed box cover 5 is arranged on the upper side and the lower side of the battery installation box 4, the magnetic connecting rods 8 are limited together with the conductive inserting plate 7 inserted into the conductive inserting groove part 701, and the magnetic connecting rods 8 of the two groups of sealed box covers 5 are connected in a penetrating type connecting groove 801 in an adsorbing mode through electromagnets, so that separation in power failure is facilitated. The sealed case lid 5 is installed and constitutes the case dress group battery 1 behind battery install bin 4 both sides, and the case dress group battery 1 is spacing by group battery installation frame 2 cladding, increases the stability of installation.
Specifically, the detecting unit 12 includes a state loading unit 14 for detecting the operating state of the battery and a fault detecting unit 15 for detecting the fault of the battery, and the state loading unit 14 includes a temperature sensor 1401 for detecting the temperature, a current sensor 1402 for detecting the current, and a voltage sensor 1403 for detecting the voltage (the temperature sensor 1401, the current sensor 1402, and the voltage sensor 1403 may be of different types according to the user's requirement). The failure detection unit 15 includes an electric spark sensor 1501 that detects a spark and a smoke sensor 1502 that detects a smoke density. The state loading unit 14 is arranged to cooperate with the maintenance unit 16 to realize battery state recording and realize water cooling and air cooling when the temperature is too high; the arrangement of the fault detection unit 15 is matched with the maintenance unit 16 to realize the power limitation of the battery open fire state and realize quick fire protection, and the vehicle loss is reduced.
Specifically, the temperature sensor 1401, the current sensor 1402, and the voltage sensor 1403 are fitted to the battery main bodies 9 of the respective battery packs mounted in the fitting groove 401, and the spark sensor 1501 and the smoke sensor 1502 are provided in plural sets in the assembled battery 1.
Specifically, the signal transmission module 13 includes a data transmission module for wired signal transmission and a wireless signal transmission module for wireless signal transmission (in specific implementation, the wireless transmission module may be selected from, but is not limited to, a ZM2441PA08 type).
Specifically, the maintenance unit 16 includes a cooling protection unit 17 for cooling protection of the battery main body 9 and a fault protection unit 18 for fault protection of the packaged battery pack 1.
Specifically, the cooling protection unit 17 includes a fan circuit switch 1701 electrically connected to the air guiding fan 3, a circulation pump 1702 communicated to the water cooling pipeline 402, and a refrigerator 1703 for implementing refrigeration by matching with the circulation pump 1702, and the fault protection unit 18 includes a power limiting unit 1801 for performing power limitation (for circuit disconnection or connection, limiting circuit power output) and a fire extinguishing unit 1802 for implementing fire extinguishing (any one of the existing self-extinguishing fire extinguishers may be used).
Specifically, this high security lithium cell, when installing, only need to install battery main part 9 in gomphosis groove 401 one by one, and install two sets of sealed case lids 5 in the upper and lower both sides of battery install bin 4 respectively, when sealed case lid 5 is installed into battery install bin 4 both sides, electrically conductive picture peg 7 is packed into in electrically conductive picture peg part 701, and battery main part 9 and electrode paster 901 switch-on connection realize the connection of circuit, make whole group circuit collect to wiring groove 902 department, open the magnetism and inhale connecting rod 8 internal magnet and make the magnetism of two sets of sealed case lids 5 inhale connecting rod 8 and adsorb fixedly in through connection groove 801 magnetism this moment. Then, the box-packed battery pack 1 composed of the battery installation box 4 and the sealed box cover 5 is only needed to be installed in the battery pack installation groove 201 formed in the battery pack installation frame 2. The power supply of the air guiding fan 3 is connected, and the water cooling pipeline 402, the circulating pump 1702 and the refrigerating machine 1703 are connected by adopting pipelines; when the battery pack is in operation, the single chip microcomputer 11 in the detection element box 10 controls the detection unit 12 to detect the battery, the state loading unit 14 detects temperature information through the temperature sensor 1401, detects current information through the current sensor 1402, and detects voltage information through the voltage sensor 1403. When the battery is detected to be overheated, the single chip microcomputer 11 transmits a signal to the signal transmission module 13 to remind a user that the battery is overheated and drive the maintenance unit 16, the cooling protection unit 17 in the maintenance unit 16 drives the fan circuit switch 1701 to realize the primary air cooling of the operation of the air guiding fan 3, and the circulating pump 1702 and the refrigerator 1703 are matched to lead the water cooling pipeline 402 into the rapidly circulating water cooling liquid, so that the liquid cooling in the embedding groove 401 is realized. The fault detection unit 15 detects electric sparks or open fires through the electric spark sensor 1501, the smoke sensor 1502 detects smoke concentration, when battery open fires or smoke exists (smoke concentration value is set according to requirements), the single chip microcomputer 11 transmits signals to the signal transmission module 13 to remind a user that a problem occurs in the battery and drive the maintenance unit 16, and the fault protection unit 18 in the maintenance unit 16 achieves power limitation and extinguishes fire. This high security lithium cell, battery installation wiring is convenient and safe and reliable, has higher practical value.
The invention has the technical effects and advantages that: the high-safety lithium battery has a convenient installation mode, namely, the battery main body 9 is arranged in the battery installation box 4, the sealed box cover 5 is covered, the electrode patches 901 can be connected and abutted to the battery main body 9, the two groups of electrified conductive inserting plates 7 are inserted into the conductive inserting groove pieces 701 in the state that the electrode patches 901 are abutted to the battery main body 9, the connection of circuits at the wiring groove 902 is realized, and the wiring trouble is reduced. Two sets of sealed case lids 5 set up in battery install bin 4 both sides, and inhale connecting rod 8 by magnetism and spacing with the electrically conductive picture peg 7 of pegging graft in the electrically conductive plug-in groove spare 701, inhale connecting rod 8 and magnetism and inhale connecting rod 8 and pass through the electro-magnet absorption connection in through-going spread groove 801, the separation when being convenient for cut off the power supply. And the sealed case lid 5 is installed behind 4 both sides of battery install bin and constitutes the case dress group battery 1, and the case dress group battery 1 is spacing by group battery installation frame 2 cladding, increases the stability of installation. The state loading unit 14 is arranged to cooperate with the maintenance unit 16 to realize battery state recording and realize water cooling and air cooling when the temperature is too high; the arrangement of the fault detection unit 15 is matched with the maintenance unit 16 to realize the power limitation of the battery open fire state and realize quick fire protection, and the vehicle loss is reduced.
The electrode patch 901 comprises a conductive head 903 and a spring element 904 for driving the conductive head 903 to reset; the hermetic container cover 5 includes a base plate 511 and a stopper plate 512 detachable from the base plate 511. The conductive head 903 comprises a contact head 905 in sliding fit with the limiting plate 512, and a retainer ring 906 arranged on the contact head 905, wherein the contact head 905 protrudes out of the limiting plate 512 for conducting the end of the battery main body 9. The limiting plate 512 is used for abutting against the stop collar 906, and when the contact 905 slides relative to the limiting plate 512, the contact 905 is prevented from falling off from the limiting plate 512.
Two ends of the spring element 904 respectively abut against the substrate 511 and the contact 905, and the substrate 511 and the contact 905 are respectively provided with a concave hole for accommodating the spring element 904. The concave hole of the contact 905 is formed by recessing from one side of the contact 905, which is communicated with the end of the battery main body 9, and the concave hole of the substrate 511 is formed by recessing from one side of the substrate 511, which is close to the limiting plate 512.
After installing sealed case lid 5 on battery install bin 4, the contact 905 one end conflict that stretches out limiting plate 512 switches on the battery main part 9 tip, and spring part 904 is in compression state this moment, utilizes the elastic restoring force of spring part 904 to make the contact 905 switch on with the firm of battery main part 9 tip, avoids leading to sealed case lid 5 and the disconnection of battery main part 9 tip to switch on because of jolting at the in-process of going of vehicle, ensures the stability of lithium cell performance.
The high-safety lithium battery further comprises a clamping condition 203, the clamping condition 203 is a straight strip with a rectangular cross section, a first clamping groove 204 communicated with the battery pack mounting groove 201 is arranged on the battery pack mounting frame 2, and the first clamping groove 204 penetrates through the outer surface of one side of the battery pack mounting frame 2; one side of the sealed box cover 5, which is far away from the battery installation box 4, is provided with a second clamping groove 205 communicated with the installation groove 201, the second clamping groove 205 penetrates through the outer surface of one side of the sealed box cover 4, and the upper end and the lower end of the clamping condition 203 are respectively accommodated in the first clamping groove 204 and the second clamping groove 205.
After the sealed box cover 5 is installed on the upper side and the lower side of the battery installation box 4 to form the boxed battery pack 1, the boxed battery pack 1 is installed in the battery pack installation groove 201 of the battery pack installation frame 2, then the clamping condition 203 is inserted into the battery pack installation frame 2 and the sealed box cover 5, the upper end and the lower end of the clamping condition 203 are respectively accommodated in the first clamping groove 204 and the second clamping groove 205, the clamping condition 203 is blocked and abutted by the inner groove wall of the clamping groove, so that the boxed battery pack 1 is stably installed in the battery pack installation frame 2, and the situation that the boxed battery pack 1 is withdrawn from the battery pack installation frame 2 to cause poor use is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A high-safety lithium battery comprises a box-packed battery pack (1) and a battery pack mounting frame (2) convenient for mounting and positioning the box-packed battery pack (1), wherein a plurality of groups of battery main bodies (9) are mounted in the box-packed battery pack (1);
the method is characterized in that: the box-packed battery pack (1) comprises a battery installation box (4) in a cuboid box-shaped structure and two groups of sealed box covers (5) which are respectively installed on the upper side and the lower side of the battery installation box (4), coupling grooves for installing the sealed box covers (5) are formed in the upper side and the lower side of the battery installation box (4), longitudinal partition plates and transverse partition plates which are mutually crossed are arranged in the battery installation box (4), the space in the battery installation box (4) is divided into a plurality of groups of embedding grooves (401) in a rectangular array by the longitudinal partition plates and the transverse partition plates, and the plurality of groups of embedding grooves (401) are used for respectively accommodating a plurality of groups of battery main bodies (9);
a plurality of groups of electrode patches (901) which are conducted with the end part of the battery main body (9) are arranged on one side of the sealed box cover (5) close to the battery installation box (4) in a rectangular array, a conductive plugboard (7) which is conducted with each group of electrode patches (901) through a lead is arranged on one side of the sealed box cover (5), a conductive plugboard component (701) for the insertion of the conductive plugboard (7) is arranged on one side of the battery installation box (4), and a wiring groove (902) which is electrically connected with the upper conductive plugboard component (701) and the lower conductive plugboard component (701) is arranged on the battery installation box (4);
one side that wiring groove (902) was kept away from in battery install bin (4) is installed a set of detecting element case (10), be provided with in detecting element case (10) and be used for data processing's singlechip (11), detecting element (12) of detecting box dress group battery (1), be used for data transmission's signal transmission module (13) and be used for the maintenance unit (16) that the battery was maintained, detecting element (12), signal transmission module (13) and maintenance unit (16) respectively with singlechip (11) electric connection.
2. A high-safety lithium battery as claimed in claim 1, wherein: the both sides of group battery installation frame (2) are provided with wind-guiding structure, and offer group battery mounting groove (201) that supply case dress group battery (1) to install on group battery installation frame (2), the both sides of group battery installation frame (2) are constructed side wind-guiding base plate (202) that supply the wind-guiding structure to install.
3. A high-safety lithium battery as claimed in claim 2, wherein: the air guide structure comprises a plurality of air guide fans (3) which are arranged on the side air guide substrate (202) in a rectangular array mode and a dustproof filter screen (301) which is arranged on one side, far away from the box-packaged battery pack (1), of the side air guide substrate (202).
4. A high-safety lithium battery as defined in claim 3, wherein: the side of the battery installation box (4) corresponds to the position of the air guide fan (3) installed on the battery pack installation frame (2) and is provided with an air inlet for installing an air inlet filter screen (6), the position of the longitudinal partition board facing each group of embedded grooves (401) is provided with an air outlet for communicating the air inlet and installing an air outlet filter screen (601), cooling branch pipes for circulating cooling liquid are installed in the transverse partition board, and the cooling branch pipes are communicated with a water cooling pipeline (402) installed outside the battery installation box (4).
5. A high-safety lithium battery as claimed in claim 1, wherein: sealed case lid (5) are close to the one end that battery install bin (4) one side was kept away from electrically conductive picture peg (7) and are provided with magnetic suction connecting rod (8) of two sets of perpendicular to sealed case lid (5), the one end that sealed case lid (5) were kept away from in magnetic suction connecting rod (8) is provided with the electro-magnet, battery install bin (4) keep away from one side of electrically conductive plug-in groove spare (701) and seted up confession magnetic suction connecting rod (8) male through-type spread groove (801), and are two sets of through-type spread groove (801) magnetic suction butt joint is packed into in magnetic suction connecting rod (8) of sealed case lid (5.
6. A high-safety lithium battery as claimed in claim 1, wherein: the detection unit (12) comprises a state loading unit (14) for detecting the working state of the battery and a fault detection unit (15) for detecting the fault of the battery; the state loading unit (14) includes a temperature sensor (1401) that detects temperature, a current sensor (1402) that detects current, and a voltage sensor (1403) that detects voltage; the failure detection unit (15) includes an electric spark sensor (1501) that detects sparks and a smoke sensor (1502) that detects smoke density.
7. A high-safety lithium battery as claimed in claim 6, wherein: the temperature sensor (1401), the current sensor (1402) and the voltage sensor (1403) are matched with each battery main body (9) installed in the embedded groove (401), and a plurality of groups of the electric spark sensor (1501) and the smoke sensor (1502) are arranged in the case-mounted battery pack (1); the signal transmission module (13) comprises a data transmission module for wired signal transmission and a wireless signal transmission module for wireless signal transmission.
8. The high-safety lithium battery as claimed in claim 4, wherein: the maintenance unit (16) comprises a cooling protection unit (17) for cooling protection of the battery main body (9) and a fault protection unit (18) for fault protection of the boxed battery pack (1); the cooling protection unit (17) comprises a fan circuit switch (1701) electrically connected with the air guide fan (3), a circulating pump (1702) communicated with the water cooling pipeline (402) and a refrigerating machine (1703) matched with the circulating pump (1702) to realize refrigeration, and the fault protection unit (18) comprises a power limiting unit (1801) for limiting power and a fire extinguishing unit (1802) for realizing open fire extinguishing.
9. A high-safety lithium battery as claimed in claim 1, wherein: the electrode patch (901) comprises a conductive head (903) and a spring element (904) for driving the conductive head (903); the sealed box cover (5) comprises a base plate (511) and a limit plate (512) which is detachable from the base plate (511); the conductive head (903) comprises a contact head (905) in sliding fit with the limiting plate (512) and a retainer ring (906) arranged on the contact head (905), and the contact head (905) protrudes out of the limiting plate (512) and is used for conducting the end part of the battery main body (9); two ends of the spring element (904) are respectively abutted against the substrate (511) and the contact head (905), and the substrate (511) and the contact head (905) are respectively provided with a concave hole for accommodating the spring element (904).
10. A high-safety lithium battery as claimed in claim 2, wherein: the high-safety lithium battery further comprises a clamping condition (203), the battery pack mounting frame (2) is provided with a first clamping groove (204) communicated with the battery pack mounting groove (201), one side, far away from the battery mounting box (4), of the sealing box cover (5) is provided with a second clamping groove (205) communicated with the mounting groove (201), and the upper end and the lower end of the clamping condition (203) are respectively accommodated in the first clamping groove (204) and the second clamping groove (205).
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| CN201911270797.6A CN111029503B (en) | 2019-12-12 | 2019-12-12 | High-safety lithium battery |
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| CN114801890A (en) * | 2022-04-09 | 2022-07-29 | 深圳市天赋新能源科技有限公司 | New energy automobile battery fault detection monitored control system based on thing networking |
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| CN111029503B (en) | 2020-09-08 |
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