CN116885362A - Combined lithium ion storage battery shell and lithium ion storage battery assembly - Google Patents

Combined lithium ion storage battery shell and lithium ion storage battery assembly Download PDF

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Publication number
CN116885362A
CN116885362A CN202311141576.5A CN202311141576A CN116885362A CN 116885362 A CN116885362 A CN 116885362A CN 202311141576 A CN202311141576 A CN 202311141576A CN 116885362 A CN116885362 A CN 116885362A
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CN
China
Prior art keywords
lithium ion
ion battery
isolation
battery pack
protective
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Granted
Application number
CN202311141576.5A
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Chinese (zh)
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CN116885362B (en
Inventor
于永山
徐吉静
唐拓凯
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Jiangsu Haibei New Energy Technology Co ltd
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Jiangsu Haibei New Energy Technology Co ltd
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Priority to CN202311141576.5A priority Critical patent/CN116885362B/en
Publication of CN116885362A publication Critical patent/CN116885362A/en
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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
    • H01M50/233—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
    • H01M50/242—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 against vibrations, collision impact or swelling
    • 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
    • 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
    • H01M50/20—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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention discloses a combined lithium ion battery pack shell and a lithium ion battery component, which comprise a protective shell, wherein the bottom end of the protective shell is connected with a base, the top end of the protective shell is connected with a maintenance sealing cover, the inside of the maintenance sealing cover is embedded and connected with a fixed bolt rod, the upper end of the maintenance sealing cover is connected with a positive electrode metal end piece and a negative electrode metal end piece, the inside of the protective shell is embedded and connected with a battery pack body, the inside of the protective shell is connected with a protective component, the protective component comprises a positioning frame, the inside of the protective shell is connected with a positioning frame, the inside of the protective shell is embedded and connected with an isolation wrapping belt, when electrolyte leakage can be absorbed through the isolation wrapping belt, the electrolyte is prevented from leaking to the outside of the protective shell, harmful substances in the electrolyte cannot be adhered to hands or mouths and noses, the safety of a battery is improved to the greatest extent, the use safety of the battery is improved, and the probability of hidden trouble is reduced.

Description

Combined lithium ion storage battery shell and lithium ion storage battery assembly
Technical Field
The present disclosure relates to lithium ion batteries, and particularly to a lithium ion battery housing and a lithium ion battery assembly.
Background
Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The lithium metal battery of the fifth generation product of the rechargeable battery is born in 1996, and the safety, the specific capacity, the self-discharge rate and the cost performance ratio of the lithium metal battery are all superior to those of the lithium ion battery. Due to its own high technical requirements, only a few countries' companies are producing such lithium metal batteries, and in the development and application stages of lithium batteries, lithium batteries are also required to be continuously perfected, and the existing lithium battery storage battery packs still have some defects:
for this, chinese application, publication No.: CN108695467B discloses a protective case for a storage battery, which comprises an actuating mechanism, a protective case, a reset snap ring, a pull ring, a mechanism groove, a slide block guide groove, a first steel wire rope hole, a clamping plate, a fixing strip, a pull rod, a first fixing block, a first fixed pulley, a second fixing block, a third fixing block, a fourth fixing block, a cover plate, a pull rod guide groove and the like, wherein a user can pull the pull ring from the cover plate, the first steel wire rope spring and the second steel wire rope spring are stretched for energy storage in the pulling process, after the user lifts the pull ring and lifts the protective case, the actuating mechanism is triggered under the reset action of the first steel wire rope spring and the second steel wire rope spring, and then a sliding plate in the actuating mechanism stretches out, and the actuating mechanism can play a role of buffering the protective case when the stretching amount of the sliding plate is longest; the invention has simple structure and better use effect, the arranged executing mechanism and the like can play a role of buffering, and the protection of the battery is enhanced by reducing the buffering, but the battery is still damaged by the object puncture, and secondary damage can be caused by the leakage of electrolyte in the battery.
For this, chinese application, publication No.: CN204632886U discloses a lithium ion battery, which comprises a battery box body, a battery upper cover, a battery positive terminal, a battery negative terminal and a lithium ion battery pack arranged in the battery box body, wherein the lithium ion battery pack is formed by combining a plurality of lithium ion battery cores in series and/or in parallel, each lithium ion battery core is provided with an equalization control circuit, the equalization control circuit comprises at least one energy consumption element, the battery upper cover is provided with a radiator, and the radiator is in heat conduction contact with the energy consumption element. Through set up the radiator on the battery upper cover for the battery is when charging, like the balanced control circuit during operation of charging on the certain lithium ion electric core, the heat that produces on the power consumption component can in time be dispelled by the radiator, thereby guarantees that the power consumption component has stable working property all the time, also makes the battery that has this heat radiation structure can last safe, stable work, and the radiator that its setting is the heat dissipation and can't realize the circulation of air, and the radiating effect is relatively poor.
For the above-mentioned comparison patent, the damage of the battery case of the existing lithium ion battery after the serious impact can cause the leakage of the electrolyte in the battery case, and the leakage of the electrolyte can cause a certain danger, so that a combined lithium ion battery case and lithium ion battery assembly are needed to solve the above-mentioned technical problems.
Disclosure of Invention
The invention aims to provide a combined lithium ion battery pack shell and a lithium ion battery assembly, so as to solve the problem of leakage of electrolyte of a lithium ion battery in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a combination type lithium ion battery shell and lithium ion battery subassembly, includes the guard casing, the bottom of guard casing is connected with the base, the top of guard casing is connected with the maintenance sealed lid, the inside embedding of maintenance sealed lid is connected with the dead bolt pole, the upper end of maintenance sealed lid is connected with positive negative pole metal end piece, the inside embedding of guard casing is connected with the group battery body, the inside of guard casing is connected with the protection subassembly, the protection subassembly includes positioning frame, the inside of guard casing is connected with positioning frame, the inside embedding of guard casing is connected with the isolation parcel area, the inner wall of isolation parcel area is connected with the inside casing board, the inside embedding of inside casing board is connected with the isolation net, the back of isolation net is connected with the reaction push rod, the upper end of reaction push rod is connected with the reaction plate, the outer wall connection of isolation parcel area has the limiting plate, the upper end of isolation parcel area is connected with the absorption piece, the inner wall connection of isolation parcel area has the guide block, the bottom of positioning frame is connected with the buffer bracket;
the upper end of maintenance sealed lid is connected with the radiator module, the radiator module includes the thermovent, the upper end of maintenance sealed lid is connected with the thermovent, the inside embedding of thermovent is connected with the air guide piece, the back one side of maintenance sealed lid is connected with the heat dissipation fan, the bottom of heat dissipation fan is connected with the heat conduction fin, the inside embedding of heat conduction fin is connected with the ventilation pipe, transmission through-hole has been seted up to the upper end of ventilation pipe.
As a preferable technical scheme of the invention, four groups of positioning frames are arranged in total, the four groups of positioning frames are wrapped at the upper end of the battery pack body, the bottom ends of the four groups of positioning frames are fixedly connected to the top ends of the buffer brackets, and the positioning frames and the buffer brackets are connected through bolts.
As a preferable technical scheme of the invention, the buffer support is of a trapezoid structure, the length of the top end of the buffer support is smaller than that of the bottom end of the buffer support, the bottom end of the buffer support is fixedly connected with a rubber pad, and the bottom end of the buffer support is fixedly connected with the upper end of the base.
As a preferable technical scheme of the invention, the isolation wrapping belt surrounds the outer side of the battery pack body, the upper end of the isolation wrapping belt is provided with uniform and fine through holes, the height of the inner wall of one side of the guide block connected with the isolation wrapping belt is lower than that of the other side, and one side of the isolation wrapping belt, which is close to the guide block, is filled with soda lime particles.
As a preferable technical scheme of the invention, the bottom end of the limiting plate is fixedly connected to the upper end of the base, the limiting plate is clung to the outer side of the isolation wrapping belt, the reaction push rod penetrates through the inside of the limiting plate and extends to the upper end of the reaction plate, and the limiting plate is in sliding connection with the reaction push rod.
As a preferable technical scheme of the invention, one side of the back surface of the inner frame plate is glued on the inner wall of the isolation wrap tape, and the isolation net is embedded in the inner frame plate.
As a preferable technical scheme of the invention, the air guide plates are uniformly and equidistantly distributed at the upper end of the overhaul sealing cover, and the bottom ends of the air guide plates are positioned at the top ends of the heat conducting fins.
As a preferable technical scheme of the invention, the ventilation pipe is embedded between two groups of heat conducting fins, and the bottom end of the ventilation pipe is embedded between the isolation wrapping belt and the battery pack body.
As a preferable technical scheme of the invention, the transmission through hole is communicated with the ventilation pipe, and the heat dissipation fan is electrically connected.
As a preferred technical scheme of the invention, the protective shell is in sliding connection with the positioning frame, and the positioning frame is positioned in the protective shell through the groove.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the protection of the battery pack body is enhanced through the protection shell, the base and the maintenance sealing cover, accidental collision and collision are resisted through the protection shell, a certain distance gap is reserved between the protection shell and the battery pack body, the protection shell is prevented from sinking inwards and extruding to the battery pack body to cause damage to the battery pack body to the greatest extent, the protection of the battery pack body is enhanced to the greatest extent, and when maintenance is carried out, the maintenance sealing cover is removed to judge the service condition and service life of the battery pack body, so that more convenience is brought to later-stage work.
According to the invention, the battery pack body is wrapped by arranging the isolation wrapping tape, the isolation net is embedded into the inner side of the isolation wrapping tape and the reaction plate and the limiting plate are positioned on the outer side of the isolation wrapping tape, so that the blocking effect is achieved, when the impact force is large, the reaction plate is pushed inwards, the isolation wrapping tape on one side of the isolation net is attached to the upper end of the isolation wrapping tape when the reaction plate is pushed inwards, when electrolyte leaks, the electrolyte can be absorbed through the isolation wrapping tape, the electrolyte is prevented from leaking to the outer side of the protective shell, harmful substances in the electrolyte cannot be attached to hands or the mouth and nose, the safety of the battery is improved to the greatest extent, and when the battery is accidentally damaged, the safety of the vehicle is improved, and the damage to internal components and irregular corrosion caused by the electrolyte leakage is avoided.
According to the invention, the isolation wrapping belt is arranged, the air flow is more convenient to complete circulation and circulation inside through the gap between the isolation wrapping belt and the battery pack body, and the heat on the transmission through hole is discharged by being matched with the heat dissipation fan, so that the relatively stable temperature of the battery can be ensured during charging and discharging, the charging and discharging efficiency of the battery is obviously improved while the heat dissipation effect is improved, hot air is discharged through the air guide plate under the matching of the air exchange pipe and the heat dissipation fan, and meanwhile, the air guide plate can play a role of entering dust to a certain extent under the condition of ensuring normal ventilation.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a protective assembly according to the present invention;
FIG. 3 is a schematic perspective view of the separator wrap strip and inner frame plate of the present invention;
FIG. 4 is a schematic perspective view of an absorber block and guide block of the present invention;
FIG. 5 is a schematic perspective view of a heat dissipating fan and a heat conducting fin according to the present invention;
FIG. 6 is a schematic perspective view of a transmission through hole and an air exchanging pipe according to the present invention;
fig. 7 is a schematic perspective view of the ventilation pipe and the heat dissipation port of the present invention.
In the figure: 110. a protective housing; 120. a base; 130. repairing the sealing cover; 140. a fixing bolt; 150. positive and negative metal end pieces; 160. a battery pack body; 2. a protective assembly; 210. a positioning frame; 220. an isolation wrap tape; 230. an inner frame plate; 240. a limiting plate; 250. a reaction plate; 260. a reaction push rod; 270. an isolation net; 280. an absorption block; 290. a guide block; 2110. a buffer bracket; 3. a heat dissipation assembly; 310. an air guide sheet; 320. a heat dissipation fan; 330. a heat conduction fin; 340. a transmission through hole; 350. an air exchanging pipe; 360. and a heat radiation port.
Description of the embodiments
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. 1-7, the present invention provides a combined lithium ion battery pack case and a lithium ion battery module according to the technical scheme:
according to the combined lithium ion battery pack housing and lithium ion battery pack assembly shown in fig. 1, 2, 3, 4, 5, 6 and 7, the combined lithium ion battery pack housing and lithium ion battery pack assembly comprises a protective housing 110, a base 120 is connected to the bottom end of the protective housing 110, an overhaul sealing cover 130 is connected to the top end of the protective housing 110, a fixing bolt 140 is connected to the inside of the overhaul sealing cover 130 in an embedded manner, a positive and negative metal end piece 150 is connected to the upper end of the overhaul sealing cover 130, a battery pack body 160 is connected to the inside of the protective housing 110 in an embedded manner, wherein the battery pack body 160 is charged and discharged through the reciprocating movement of lithium ions and free electrons, different metals have different electrochemical potentials, namely electrochemical potentials, lithium which is easiest to lose electrons is used for a lithium ion battery, the tendency of lithium losing electrons is the highest, and the tendency of fluorine losing electrons is the smallest. This is because the outermost layer of lithium has only one electron and is very easy to lose; the outermost layer of fluorine has 8 electrons, is very stable, and the outermost layer of atoms can only have 8 electrons at most, is most active at 1 time and is most stable at 8 times, and lithium is a part of metal oxide and is far more stable in the metal oxide than in a state that the lithium atoms are free. Therefore, if two different paths are provided for the flow of electrons and lithium ions between lithium and metal oxide, the lithium atoms automatically travel to the metal oxide portion, the path of the electrons is an external circuit, and the lithium atoms are restored to a stable state as a part of the metal oxide. Due to this tendency toward stabilization, lithium electrons are returned to the oxide by being supported, while lithium ions are returned to the oxide through the electrolyte, and lithium ions and electrons combine to form lithium atoms fixed in their metal oxides, thereby achieving storage of electric energy.
The inside of protecting case 110 is connected with protecting assembly 2, protecting assembly 2 includes positioning frame 210, the inside of protecting case 110 is connected with positioning frame 210, sliding connection between protecting case 110 and the positioning frame 210, positioning frame 210 passes through the inside of recess location at protecting case 110, the inside embedding of protecting case 110 is connected with isolation parcel area 220, the inner wall of isolation parcel area 220 is connected with inside casing plate 230, the inside embedding of inside casing plate 230 is connected with isolation net 270, the back of isolation net 270 is connected with reaction push rod 260, the back side veneer of inside casing plate 230 is at the inner wall of isolation parcel area 220, accomplish the connection to inside casing plate 230 through the veneer, break away from also very convenient after the striking, the surface that is laminated to group battery body 160 is collided to isolation parcel area 220 after breaking away from, electrolyte that leaks the upper end is absorbed, avoid permeating the outside of protecting case 110 and touched by people's limbs, the security of using has been greatly increased, also can avoid electrolyte to leak and cause environmental pollution.
The inside of frame plate 230 is embedded to spacer grid 270, the upper end of reaction push rod 260 is connected with reaction plate 250, the outer wall connection of spacer parcel area 220 has limiting plate 240, the bottom fixed connection of limiting plate 240 is in the upper end of base 120, limiting plate 240 hugs closely in the outside of spacer parcel area 220, reaction push rod 260 runs through the inside of limiting plate 240 and extends to the upper end of reaction plate 250, sliding connection between limiting plate 240 and the reaction push rod 260, wherein in order to increase structural wholeness and stability, sliding connection can guarantee the stability of connection also can be in follow-up maintenance and disassemble, more convenient has been brought.
The upper end of isolation parcel area 220 is connected with absorption piece 280, the inner wall of isolation parcel area 220 is connected with guide piece 290, isolation parcel area 220 encircles the outside at group battery body 160, the even fine through-hole has been seted up to the upper end of isolation parcel area 220, guide piece 290 connects the inner wall height of one side of isolation parcel area 220 to be less than another one side, the one side that is close to guide piece 290 of isolation parcel area 220 is filled with the soda lime granule, electrolyte in lithium ion battery is acidity, can carry out the acid-base neutralization through the soda lime, also can adsorb inside ash content through the soda lime, the inside is dry has been guaranteed, avoid the metal pin to wet and take place the corrosion, under the absorption of soda lime, lithium ion battery's life and charge-discharge's stability have been prolonged.
The bottom end of the positioning frame 210 is connected with a buffer bracket 2110, the positioning frame 210 is provided with four groups in total, the four groups of positioning frames 210 are wrapped at the upper end of the battery pack body 160, the bottom ends of the four groups of positioning frames 210 are fixedly connected to the top end of the buffer bracket 2110, the positioning frames 210 and the buffer bracket 2110 are connected through bolts, the buffer bracket 2110 is of a trapezoid structure, the top end length of the buffer bracket 2110 is smaller than the bottom end length, the bottom end of the buffer bracket 2110 is fixedly connected with a rubber pad, and the bottom end of the buffer bracket 2110 is fixedly connected to the upper end of the base 120; the battery body 160 is located at the upper end of the buffer bracket 2110, so that the battery body 160 and the protective housing 110 are suspended, the bottom end of the base 120 is supported by the buffer bracket 2110, and the resistance of the base 120 is increased.
The upper end of maintenance sealed lid 130 is connected with radiator module 3, radiator module 3 includes cooling hole 360, the upper end of maintenance sealed lid 130 is connected with cooling hole 360, the inside embedding of cooling hole 360 is connected with air guide plate 310, air guide plate 310 evenly equidistance distributes in the upper end of maintenance sealed lid 130, the bottom of air guide plate 310 is located the top of heat conduction fin 330, back side of maintenance sealed lid 130 is connected with heat dissipation fan 320, the bottom of heat dissipation fan 320 is connected with heat conduction fin 330, the inside embedding of heat conduction fin 330 is connected with ventilation pipe 350, ventilation pipe 350 embeds between two sets of heat conduction fins 330, the bottom embedding of ventilation pipe 350 is between isolation parcel area 220 and group battery body 160, transmission through-hole 340 has been seted up to ventilation pipe 350, transmission through-hole 340 link up with ventilation pipe 350, heat dissipation fan 320 has accelerated the speed of air circulation under the rotation of heat dissipation fan 320, also make the radiating effect obtain promoting, wherein ventilation pipe 350 has the effect of guide, directly absorbs out the heat between isolation parcel area 220 and the group battery body 160, possess the high efficiency.
When the combined lithium ion storage battery shell and the lithium ion storage battery component are specifically used, the following steps are required to be completed in the installation and subsequent use of the lithium ion storage battery:
the battery body 160 is embedded into the positioning frame 210 in the installation stage, the battery body 160 is wrapped by enlarging the positioning frame 210, the positioning frame 210 and the battery body 160 are completely embedded into the protective housing 110 after being fixed by means of the connecting piece, wherein the buffer bracket 2110 at the end of the positioning frame 210 is mounted to the upper end of the base 120 to complete the fixation, the battery body 160 is just positioned at the right center of the protective housing 110 after being fixed, the length of the battery body 160 from the opposite sides of the protective housing 110 is equal, the inner triangle structure of the buffer bracket 2110 has better stability, the buffer bracket 2110 has the best supporting effect on the protective housing 110, the isolation wrapping belt 220 is wrapped at the upper end of the battery body 160, the protection effect can be achieved, in addition, the upper end of the isolation wrap belt 220 is provided with the limiting plate 240, the reaction plate 250, the reaction push rod 260 and the isolation net 270, when the external impact force impacts the upper end of the protective housing 110, after the impact force is larger and directly pierces the protective housing 110, when the piercer contacts the reaction plate 250, the piercer directly pushes the reaction plate 250 to approach to one side of the isolation wrap belt 220, the reaction push rod 260 is connected with one side of the back surface of the reaction plate 250 to push the inner frame plate 230 and the isolation net 270, so that the adhesive at the upper end of the inner frame plate 230 is separated from the inner wall of the isolation wrap belt 220, the isolation net 270 is pushed to move towards the battery body 160 and move and be attached to the battery body 160, the isolation wrap belt 220 is not limited by the inner frame plate 230 and the limiting plate 240 to start to be relaxed, after being relaxed, if electrolyte in the battery body 160 leaks out after being bumped, after the leaked electrolyte contacts the isolation wrapping tape 220, the leaked electrolyte is absorbed by small holes at the upper end of the isolation wrapping tape 220, and is collected by the isolation wrapping tape 220, so that the leakage of the electrolyte to the outer side of the protective shell 110 can be prevented, the leakage of the electrolyte to hands can be avoided, and the protection of personnel can be increased, wherein the protection of batteries is increased by blocking the layers to the greatest extent by passing through the protective shell 110, the positioning frame 210, the limiting plate 240, the reaction plate 250, the isolation wrapping tape 220, the isolation net 270 and the inner frame plate 230 before the object which is impacted or penetrated into the protective shell 110 contacts the battery pack body 160;
when the lithium ion storage battery normally works, a certain gap is reserved between the isolation wrapping belt 220 and the battery pack body 160, the gap provides a good foundation for heat dissipation, the heat dissipation effect is more smooth during gas exchange, the heat dissipation effect is more excellent, when the lithium ion storage battery is in charge-discharge work, certain heat can be generated, the service life of the battery can be directly influenced due to overhigh heat, the working efficiency of the battery is influenced, the heat in the battery pack body is discharged through the rotation of the heat dissipation fan 320, firstly, the heat at the upper end of the battery pack body 160 is collected through the heat conduction fins 330, the circulation speed of air is accelerated after the heat dissipation fan 320 rotates, the heat in the gap between the isolation wrapping belt 220 and the battery pack body 160 is led out through the guiding and the transmission of the ventilation pipe 350, the heat is discharged through the rotation of the heat dissipation fan 320 after the heat is discharged through the gap between the air guide plates 310.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
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 (10)

1. A modular lithium ion battery pack housing and lithium ion battery assembly comprising a protective housing (110), characterized in that: the bottom of the protective housing (110) is connected with the base (120), the top of the protective housing (110) is connected with the maintenance sealing cover (130), the inside embedding of the maintenance sealing cover (130) is connected with the fixed bolt (140), the upper end of the maintenance sealing cover (130) is connected with the positive and negative metal end piece (150), the inside embedding of the protective housing (110) is connected with the battery pack body (160), the inside of the protective housing (110) is connected with the protective component (2), the protective component (2) comprises the positioning frame (210), the inside of the protective housing (110) is connected with the positioning frame (210), the inside embedding of the protective housing (110) is connected with the isolation wrapping band (220), the inner wall of the isolation wrapping band (220) is connected with the inner frame plate (230), the inside embedding of the inner frame plate (230) is connected with the isolation net (270), the back of the isolation net (270) is connected with the reaction push rod (260), the upper end of the reaction push rod (260) is connected with the reaction plate (250), the outer wall of the isolation wrapping band (220) is connected with the isolation block (240), the absorption block (220) is connected with the inner wall (280), the bottom end of the positioning frame (210) is connected with a buffer bracket (2110);
the upper end of maintenance sealed lid (130) is connected with radiator unit (3), radiator unit (3) are including thermovent (360), the upper end of maintenance sealed lid (130) is connected with thermovent (360), the inside embedding of thermovent (360) is connected with air guide plate (310), the back one side of maintenance sealed lid (130) is connected with heat dissipation fan (320), the bottom of heat dissipation fan (320) is connected with heat conduction fin (330), the inside embedding of heat conduction fin (330) is connected with ventilation pipe (350), transmission through-hole (340) have been seted up to the upper end of ventilation pipe (350).
2. The combination lithium ion battery pack housing and lithium ion battery module of claim 1, wherein: the positioning frames (210) are provided with four groups in total, the four groups of positioning frames (210) are wrapped at the upper end of the battery pack body (160), the bottom ends of the four groups of positioning frames (210) are fixedly connected to the top ends of the buffer supports (2110), and the positioning frames (210) and the buffer supports (2110) are connected through bolts.
3. The combination lithium ion battery pack housing and lithium ion battery module of claim 2, wherein: the buffer support (2110) is of a trapezoid structure, the top end length of the buffer support (2110) is smaller than the bottom end length, a rubber pad is fixedly connected to the bottom end of the buffer support (2110), and the bottom end of the buffer support (2110) is fixedly connected to the upper end of the base (120).
4. The combination lithium ion battery pack housing and lithium ion battery module of claim 2, wherein: the isolation wrap belt (220) surrounds the outside at group battery body (160), even fine through-hole has been seted up to the upper end of isolation wrap belt (220), the inner wall height that one side of isolation wrap belt (220) was connected to guide piece (290) is less than another side, the one side that is close to guide piece (290) of isolation wrap belt (220) is filled with the soda lime granule.
5. The combination lithium ion battery pack housing and lithium ion battery module of claim 1, wherein: the bottom fixed connection of limiting plate (240) is in the upper end of base (120), the outside at isolation parcel area (220) is hugged closely to limiting plate (240), reaction push rod (260) run through the inside of limiting plate (240) and extend to the upper end of reaction plate (250), sliding connection between limiting plate (240) and reaction push rod (260).
6. The combination lithium ion battery pack housing and lithium ion battery module of claim 1, wherein: the inner frame plate (230) is glued on the inner wall of the isolation wrap (220) on the back side, and the isolation net (270) is embedded inside the inner frame plate (230).
7. The combination lithium ion battery pack housing and lithium ion battery module of claim 1, wherein: the air guide plates (310) are uniformly distributed at equal intervals at the upper end of the overhaul sealing cover (130), and the bottom ends of the air guide plates (310) are positioned at the top ends of the heat conducting fins (330).
8. The combination lithium ion battery pack housing and lithium ion battery module of claim 1, wherein: the ventilation pipe (350) is embedded between the two groups of heat conducting fins (330), and the bottom end of the ventilation pipe (350) is embedded between the isolation wrapping belt (220) and the battery pack body (160).
9. The combination lithium ion battery pack housing and lithium ion battery module of claim 1, wherein: the transmission through hole (340) is communicated with the ventilation pipe (350), and the heat dissipation fan (320) is electrically connected.
10. The combination lithium ion battery pack housing and lithium ion battery module of claim 1, wherein: the protective shell (110) is connected with the positioning frame (210) in a sliding mode, and the positioning frame (210) is positioned inside the protective shell (110) through the groove.
CN202311141576.5A 2023-09-06 2023-09-06 Combined lithium ion storage battery shell and lithium ion storage battery assembly Active CN116885362B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005117162A1 (en) * 2004-05-26 2005-12-08 CHUNG, Hai Lithium ion power battery with impermeable plastic case
CN212625722U (en) * 2020-08-13 2021-02-26 江西迪芯能源科技有限公司 Lithium ion storage battery not prone to leakage
CN212750949U (en) * 2020-06-22 2021-03-19 旭成（福建）科技股份有限公司 Lithium battery with protection function
CN216563400U (en) * 2021-08-28 2022-05-17 无锡德朗能新能源有限公司 Lithium ion battery pack capable of being protected autonomously
CN217823122U (en) * 2022-07-04 2022-11-15 中能建(北京)能源研究院有限公司 New energy battery protector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005117162A1 (en) * 2004-05-26 2005-12-08 CHUNG, Hai Lithium ion power battery with impermeable plastic case
CN212750949U (en) * 2020-06-22 2021-03-19 旭成（福建）科技股份有限公司 Lithium battery with protection function
CN212625722U (en) * 2020-08-13 2021-02-26 江西迪芯能源科技有限公司 Lithium ion storage battery not prone to leakage
CN216563400U (en) * 2021-08-28 2022-05-17 无锡德朗能新能源有限公司 Lithium ion battery pack capable of being protected autonomously
CN217823122U (en) * 2022-07-04 2022-11-15 中能建(北京)能源研究院有限公司 New energy battery protector

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