CN113206337A - Multifunctional lithium ion battery energy storage system with high space utilization rate for light electric vehicle - Google Patents
Multifunctional lithium ion battery energy storage system with high space utilization rate for light electric vehicle Download PDFInfo
- Publication number
- CN113206337A CN113206337A CN202110641480.XA CN202110641480A CN113206337A CN 113206337 A CN113206337 A CN 113206337A CN 202110641480 A CN202110641480 A CN 202110641480A CN 113206337 A CN113206337 A CN 113206337A
- Authority
- CN
- China
- Prior art keywords
- battery
- module
- box body
- energy storage
- storage system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a multifunctional lithium ion battery energy storage system with high space utilization rate for a light electric vehicle, which comprises a box body with an installation cavity, a battery module arranged in the installation cavity of the box body and a charging and discharging plug-in port in circuit connection with the battery module, wherein the battery module is formed by connecting four or eight battery units in series in a group mode, the battery units are single lithium ion batteries made of high-capacity square aluminum shell battery cores with the capacity of 100Ah to 300Ah, a boosting module is arranged in an output circuit in circuit connection with the charging and discharging plug-in port, and a damping structure is arranged between the inner wall of the box body and the battery module. The invention adopts the structure of the large-capacity square aluminum shell battery cell and the boosting module, so that the invention not only achieves the driving voltage of the existing electric bicycle with a new national standard motor not lower than 48V, but also greatly reduces the number of battery cells connected in series and improves the use safety, and has the characteristics of high volume energy density, high safety, long service life, low cost, wide application range and the like.
Description
Technical Field
The invention relates to the field of new energy lithium ion batteries, in particular to a multifunctional lithium ion battery energy storage system with high space utilization rate for a light electric vehicle.
Background
For an electric vehicle (including an electric bicycle, an electric motorcycle, an electric tricycle, an electric quadricycle, etc.), generally, a driving voltage of a motor is not lower than 48V, and a rated voltage of a lithium ion single battery cell is generally between 3.0V and 4.4V. In order to achieve the output voltage of 48V, it is necessary to connect ten or more single battery cells in series (for example, a lithium iron phosphate battery cell needs 16 battery cells to be connected in series, and a ternary lithium battery cell needs 15 battery cells to be connected in series). The square aluminum shell battery with large single capacity ranging from 100Ah to 300Ah is large in size, and the size of the battery pack directly formed by connecting dozens of battery cells in series in a group far exceeds the space capable of being accommodated by the frame of the electric bicycle or the electric motorcycle, so that the problem of size matching of the battery pack and the frame is caused.
Patent application No. 201110297192.3 and patent application No. 201180069814.5 disclose a battery pack for an electric bicycle. The two technologies use the flat film covered soft package battery cell monomer to carry out battery grouping, and the function of driving the electric bicycle is realized through the series connection of a plurality of battery cells. However, the two patented technologies have the following problems:
(1) the single battery has small capacity, and the single capacity of the aluminum plastic film soft package single battery core cannot be increased due to the limitation of the depth of a punched hole of the aluminum plastic film. Generally, the capacity of the soft-packed unit cell is 20 to 30 Ah.
(2) The number of the series-connected battery cells is large, in order to realize the function of driving the electric bicycle, the voltage of the battery pack needs to reach the voltage not lower than 48V, and the rated voltage of the single battery is generally between 3V and 4V, so that the number of the grouped single battery cells needs to reach 15 or 16, and the battery pack is large in size.
(3) The endurance is short, because the capacity of the monomer battery cell is small, the battery pack formed by connecting a plurality of monomers in series can reach 48V30Ah, the endurance of the electric bicycle is about 100km to 80km, and the long endurance of the electric bicycle more than 200km cannot be realized, for example, the timely distribution industry requires that the subsequent endurance of a new national standard electric bicycle battery can reach 200km when the battery is fully charged.
(4) After grouping, because the number of the battery monomers is large, in the aging process of the battery pack in the whole life cycle, the inconsistency among the monomer battery cores brings great challenges to the service life of the whole battery pack, so that the service life of the battery is only 1 to 2 years, and the shorter service life of the battery ensures that the service cost of the battery is higher.
(5) In order to pursue higher energy density, a nickel cobalt lithium manganate anode ternary material system is usually selected and used for a soft package battery core, the thermal stability of a ternary lithium ion battery is poor, certain safety is sacrificed, and certain hidden danger is brought to the safety of consumers using the lithium ion battery.
(6) The battery has a large number of single batteries, so that the space utilization rate of a battery system is low, and the volume energy density is low.
The electric bicycle has the following new national standard: the new national standard requires that the whole vehicle mass (including a battery) is less than or equal to 55kg, the motor power is less than or equal to 400W, the nominal voltage of the storage battery is less than or equal to 48V, and the pedal riding function is required.
Disclosure of Invention
The invention aims to solve the problems and the defects, and provides a multifunctional lithium ion battery energy storage system which can greatly reduce the number of series-connected battery cores while achieving the driving voltage of the existing new national standard motor of the electric bicycle to be not lower than 48V, and has the characteristics of high space utilization rate, high volume energy density, high safety, long service life, long endurance, low cost, wide application range and the like. The lithium ion battery energy storage system has multifunctional application, and can be used for common household appliances, outdoor power supplies and the like besides the field of light electric vehicles.
The technical scheme of the invention is as follows:
the invention relates to a multifunctional lithium ion battery energy storage system with high space utilization rate, which is characterized in that: the battery module is formed by connecting four or eight battery units in series in a group, the battery units are lithium ion battery monomers made of large-capacity square aluminum shell electric cores with the capacity of 100Ah to 300Ah, a boosting module is arranged in an output circuit of the battery module and the charging and discharging insertion port circuit, a damping structure is arranged between the battery module and the box body, the four or eight battery units are connected in series in a group, then the voltage output is 10V-34V, and the output voltage is boosted to 48V-60V through a boosting module direct-current boosting circuit or to 220V through a boosting module alternating-current boosting circuit. The boost module is also called a booster or a voltage boost converter. The battery unit is preferably an automobile grade lithium ion battery unit which has the capacity of 100Ah to 300Ah and can pass needle, overcharge, extrusion and furnace temperature safety tests.
Further, the method comprises the following steps: the lithium ion battery energy storage system further comprises a BMS hardware protection circuit board, wherein the BMS hardware protection circuit board is connected in series in a connecting circuit of the battery module, and the battery module is isolated from the boosting module and the BMS hardware protection circuit board through insulating parts. The purpose of isolating the battery module from the boost module and the BMS hardware protection circuit board through the insulating member is to avoid the occurrence of short circuits. In order to ensure that the battery module is convenient to install and compact in structure, the insulating part is arranged above the battery module, and the upper surface of the insulating part is provided with a concave structure for accommodating the boosting module and the BMS hardware protection circuit board and a wire passing groove for facilitating hidden connection of a circuit. The box body is also provided with an upper cover and a handle, wherein the upper cover and the handle are arranged above the insulating part.
Preferably, the method comprises the following steps: four or eight battery units are reliably adhered together by the flame-retardant foam double-sided adhesive tape stuck between two adjacent battery units. The flame-retardant foam double-sided adhesive tape is positioned on the side surface of the battery unit and close to the periphery. Further, the method comprises the following steps: the eight battery units are vertically arranged and are arranged in two rows and adhered together.
The specific composition and installation mode of the damping structure can be determined according to the needs of users, for example, the first scheme of the damping structure comprises a horizontal buffer plate arranged in a box body and a plurality of elastic buffer columns positioned between the buffer plate and the bottom surface in the box body, and the battery module is borne on the buffer plate. The shock-absorbing structure can also be a plurality of elastic rubber columns with at least one end provided with a sucker, one end of each elastic rubber column is adsorbed on the inner wall of the box body through the sucker, and the other end of each elastic rubber column is arranged on the battery module in a propping manner. The second scheme of the damping structure comprises a sealed wear-resistant soft rubber shell body and a damping and heat-dissipating medium filled in the wear-resistant soft rubber shell body, wherein the damping and heat-dissipating medium is liquid, and a liquid changing port with a sealing plug is arranged on the wear-resistant soft rubber shell body. This kind of unique damper structure can be multi-level carry out the shock attenuation (wear-resisting flexible glue shock attenuation and hydraulic shock attenuation), further reduce vibrations, the protection battery is not damaged by the vibration, and liquid medium still has the heat absorption and conducts heat the effect moreover, enables the heat that the battery module produced in the use and dispels the heat through liquid medium. The further proposal is that a longitudinal extension spring positioned in a liquid medium is also arranged in the wear-resistant soft rubber outer shell. The third scheme of the damping structure comprises at least two elastic clamping devices arranged on the inner wall of a box body, each elastic clamping device comprises a guide clamping piece vertically arranged in the box body and a spring positioned between the guide clamping piece and the inner side wall of the box body, the upper end part of each guide clamping piece is made into an inclined edge structure inclined outwards, the battery module is axially inserted into a space between the at least two elastic clamping devices, and the battery module is inserted into a guide and elastic clamping device through the at least two guide clamping pieces. Because the spring is arranged between the guide clamping piece and the inner side wall of the box body, the box body has the characteristics of good damping effect and good heat dissipation effect, can be matched and clamped with battery modules of various sizes, has strong universality, cannot clamp and damage products, and is convenient to operate. The damping structures in the invention can ensure that the battery module has enough buffering and safe deformation space when being vibrated, and have the characteristics of good damping and heat dissipation effects. Since for lithium ion battery energy storage systems, in addition to preventing shock damage, there is also an important requirement to maintain a suitable temperature. Only if the proper temperature is maintained will the battery cell achieve its optimal performance and achieve its optimal service life.
In order to effectively prevent the lithium ion battery from being stolen and further improve the use safety of the lithium ion battery, a safety alarm device can be arranged on the multifunctional lithium ion battery energy storage system. The specific structure of the safety alarm device can be set according to the requirement, such as: the box body is provided with an upper cover and a handle which are covered above the insulating part, the handle is connected to the upper cover in a vertically-overturning manner through a rotating shaft, the upper cover is correspondingly provided with a containing groove for containing and collecting the handle in a downward-rotating manner, the safety alarm device comprises a miniature alarm and an alarm switch which are connected with a BMS hardware protection circuit board, and a movable contact switch which is positioned in the containing groove and can connect the circuits of the miniature alarm and the alarm switch, under the condition that the alarm switch is opened, the handle or a toggle block connected with the rotating shaft pushes the movable contact switch down when the handle is stored in the containing groove to disconnect the connecting circuit of the miniature alarm and the alarm switch, and the top of the movable contact switch is loosened when the handle is rotated out of the containing groove, so that the connecting circuit of the miniature alarm and the alarm switch is connected to realize alarm. In order to prevent theft by turning off the alarm switch by others, the alarm switch is preferably an intelligent password switch or an intelligent fingerprint identification switch. As for the application of the intelligent password switch or the intelligent fingerprint identification switch to the existing intelligent lock, the detailed description is omitted.
According to the invention, four or eight square aluminum shell battery cores with high capacity (between 100Ah and 300 Ah) of the electric automobile are used as single lithium ion batteries in the energy storage system, and the boosting module and the damping structure are additionally arranged, so that when the electric automobile is used, the current capacity of the single batteries is large, the endurance time is long, and the risk of ignition and explosion of a battery module and a battery system is avoided because the square aluminum shell battery cores with high capacity (between 100Ah and 300 Ah) of the automobile can pass safety tests such as needles, overcharging, extrusion, furnace temperature and the like, so that the personal and property safety of consumers is guaranteed, and the safety performance is high. The low output voltage of the battery module can be increased to 48-60V for output through the direct current boosting of the boosting module, the number of the series battery monomers is greatly reduced (the number of the series battery monomers is reduced to 8 from the existing number of the series battery monomers needing 15 monomers) while the new national standard of 48V voltage output of the electric bicycle is achieved, the whole space is effectively utilized, the battery active material is added, and the battery module has the characteristics of high space utilization rate, high volume energy density and high safety, so that the battery module has a wider application range and stronger practicability. Moreover, the low output voltage of the battery module is boosted to 220V output through the alternating current booster circuit of the booster module, electric energy can be provided for common household appliances such as a refrigerator, a microwave oven and a fan, emergency supplementary electric energy can also be provided for a new energy automobile with feed, and the multifunctional energy-saving battery module has multifunctional purposes. And the shock-absorbing structure can reduce the shock and protect the battery monomer from being damaged by the vibration. Because adjacent battery monomer is in the same place through the reliable bonding of fire-retardant type foam double faced adhesive tape, because of the double faced adhesive tape has certain thickness, can be for the big face inflation of electric core reservation space on the one hand to increase electric core life-span, on the other hand can separate each other between the battery monomer, makes each other contactless between the battery monomer, not only can realize fine radiating process, and can prevent mutual interference between the battery monomer, single battery monomer leaks can not influence the normal use of other batteries, concrete very strong practicality.
The invention has the advantages that:
(1) the battery has the characteristics of high space utilization rate, high volume energy density and long endurance, and the endurance can reach 200km after one-time charging. Generally speaking, for a take-away logistics electric bicycle, the energy endurance of 11000Wh can be 80km, the battery system of the technical scheme of the invention takes 8 single cells with the rated voltage of 170Ah of 3.2V as an example, the battery system has the energy of 8 x 3.2V 170Ah =4352 Wh, and the boosting conversion efficiency of the boosting module is about 90%, namely 4352 x 90% + 11000 x 80=208.9 km.
(2) The service life is long, and the accumulative endurance service life is 60 km per 10 years.
(3) High safety, and can easily pass safety tests of needling, overcharging, extruding and furnace temperature.
(4) The shock absorption structure is additionally arranged in the box body, when the electric light vehicle vibrates, the vibration of the battery can be reduced through the shock absorption effect, and the battery is protected from being damaged by vibration.
(4) The multifunctional electric vehicle has small integral volume and multiple functions, and can be widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric tricycles, electric quadricycles and the like. The technical scheme has the capability of outputting 48V and 60V direct-current voltages and the capability of outputting 220V alternating-current voltage, and the energy storage system can be used for a new national standard electric vehicle and can also provide emergency electric energy for common household appliances by adjusting voltage output, so that the energy storage system has wide application prospect.
The invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a battery module according to the present invention;
fig. 2 is a schematic view of an assembly structure of four battery cells in fig. 1;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 after the upper cover is opened;
FIG. 5 is a schematic view of an assembled structure of the embodiment of FIG. 3;
FIG. 6 is a schematic structural diagram of another embodiment of the present invention;
FIG. 7 is a schematic structural view of a second embodiment of a shock-absorbing structure according to the present invention;
fig. 8 is a schematic structural view of the present invention applied to a two-wheeled electric vehicle.
Detailed Description
As shown in fig. 1-8, the multifunctional lithium ion battery energy storage system (energy storage system is also called energy storage device or energy storage mechanism) with high space utilization rate for the light electric vehicle comprises a box 4 with an installation cavity, a battery module arranged in the installation cavity of the box 4, and a charging and discharging plug-in port in circuit connection with the battery module, wherein the battery module is formed by connecting four or eight battery units 1 in series in a group, the battery unit 1 is a lithium ion battery monomer made of a large-capacity square aluminum shell battery cell with a capacity of 100AH to 300AH, a boosting module 5 is arranged in an output circuit of the battery module in circuit connection with the charging and discharging plug-in port, a damping structure is arranged between the box 4 and the battery module, the voltage output of the four or eight battery units 1 after being connected in series in a group is 10V-34V, the output voltage is boosted to 48V-60V by a direct current boosting circuit of the boosting module 5 or is boosted to 48V-60V by an alternating current boosting circuit of the boosting module 5 The output voltage is raised to 220V. The structure of the combination of the battery module and the boosting module 5 increases the volume of a single battery cell under the same box space volume, improves the whole space utilization rate by 20 percent, can contain more battery active materials, and improves the volume energy density of the energy storage system of the lithium ion battery by 10 percent. The method has the characteristics of high space utilization rate and high volume energy density. Preferably, four or eight battery cells 1 are securely bonded together by a flame retardant type foam double sided tape 2 attached between adjacent two battery cells. Further, a flame retardant type foam double-sided tape 2 is provided on the side of the battery cell 1 near the outer circumference.
In order to ensure that the structure of the lithium ion battery energy storage system is more reliable, the lithium ion battery energy storage system also comprises a BMS hardware protection circuit board 6, the BMS hardware protection circuit board 6 is connected in series in a connecting circuit of the battery module, and the battery module is separated from the boosting module 5 and the BMS hardware protection circuit board 6 through an insulating piece 7. BMS is a Battery Management System, which is an abbreviation of Battery Management System. In order to make the structure of the present invention more compact, the insulator is mounted above the battery module, and the upper surface of the insulator 7 is provided with a recessed structure for accommodating the boosting module and the BMS hardware protection circuit board and a wire passing groove for facilitating the hidden connection of the circuit. And the box body 4 is also provided with an upper cover 8 and a handle 9 which are covered above the insulating part 7. The charging and discharging plug-in mounting port comprises a charging plug-in mounting port 10 and a discharging plug-in mounting port 11 which are mounted on the upper cover.
The preferred scheme of the battery system is: if the number of the battery units is four, the four battery units 1 are vertically arranged in a row and are adhered together. If eight, the two rows are bonded together (preferably two rows with adjacent major surfaces of each row bonded and adjacent lateral surfaces of the two rows bonded). For making the battery module installation more convenient, be equipped with the bolt 3 that can the dismouting on the battery unit 1, four or eight battery units 1 are established ties and are grouped through the cable conductor of bolt 3 and connecting bolt.
The specific composition and installation mode of the damping structure can be determined according to the needs of a user, and if the damping structure comprises a plurality of elastic rubber columns with at least one end provided with a sucker, one end of each elastic rubber column is adsorbed on the inner wall of the box body through the sucker, and the other end of each elastic rubber column is propped against the battery module; the damping structure can also comprise a horizontal buffer plate arranged in the box body and a plurality of elastic buffer columns positioned between the buffer plate and the inner bottom surface of the box body, and the battery module is borne on the buffer plate. The damping structure can also comprise a sealed wear-resistant soft rubber outer shell 12 and a damping and heat-dissipating medium 13 filled in the wear-resistant soft rubber outer shell 12, the damping and heat-dissipating medium is liquid, and a liquid changing port with a sealing plug is arranged on the wear-resistant soft rubber outer shell. When the heat of the liquid is higher, the liquid with lower temperature can be replaced through the liquid replacing port. Further, a longitudinal extension spring 14 positioned in a liquid medium is also arranged in the wear-resistant soft rubber outer shell. As shown in fig. 6, the shock-absorbing structure may further include at least two elastic clamping devices installed on the inner wall of the box body, each elastic clamping device includes a guide clamping piece 15 vertically installed in the box body, and a spring 16 located between the guide clamping piece 15 and the inner side wall of the box body 4, the upper end portion of each guide clamping piece 15 is made into a bevel edge structure inclined outward, the battery module is axially inserted into a space between the at least two elastic clamping devices, and the battery module is inserted into the space between the at least two elastic clamping devices through the at least two guide clamping pieces 15 and is guided and elastically clamped. The scheme can also be additionally provided with an elastic rubber column with a sucker at the lower end or a wear-resistant soft rubber shell structure with a liquid damping and heat dissipation medium and a spring at the bottom of the inner cavity of the box body. Thus, the front and back and the upper and lower parts can effectively absorb shock.
In order to further improve the use safety of the invention, a safety alarm device can be arranged in the multifunctional lithium ion battery energy storage system. The safety alarm device can be various, if the box body 4 is provided with an upper cover 8 and a handle 9 which are covered above the insulating part 7, the handle 9 can be connected to the upper cover 8 in an up-and-down overturning manner through rotating shafts at two ends, the upper cover 8 is correspondingly provided with a containing groove for containing and storing the handle 9 in a down-rotating manner, the safety alarm device comprises a micro alarm and an alarm switch which are connected with the BMS hardware protection circuit board 6, and a movable contact switch which is positioned in the containing groove, under the condition that the alarm switch is opened, when the handle 9 is stored in the containing groove, the handle or a toggle block which is connected with the rotating shafts pushes the movable contact switch to disconnect the connecting circuit of the micro alarm and the alarm switch, and when the handle 9 is rotated out of the containing groove, the overhead of the movable contact switch is released, so that the connecting circuit of the micro alarm and the alarm switch is communicated to realize alarm. The miniature alarm is in the prior art. That is to say, when the lithium ion battery energy storage system is installed on a light electric vehicle for use, the connection circuit of the miniature alarm and the movable contact switch is disconnected even if a user turns the lifting handle without starting the alarm switch, and the miniature alarm cannot give an alarm. When a user needs to leave the light electric vehicle, the alarm switch can be started firstly, so that the miniature alarm can give an alarm in time only when other people rotate the lifting handle to extract, and the theft is effectively prevented. In order to prevent theft by turning off the alarm switch by others, the alarm switch is preferably an intelligent password switch or an intelligent fingerprint identification switch. Of course, the safety alarm device may have other structures, which are not listed.
While the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Other variations of the disclosed embodiments, as would be appreciated by those skilled in the art with reference to the description of the invention, are contemplated as falling within the scope of the appended claims.
Claims (10)
1. The utility model provides a high space utilization's multi-functional lithium ion battery energy storage system that light-duty electric motor car was used which characterized in that: comprises a box body (4) with a mounting cavity, a battery module arranged in the mounting cavity of the box body (4), and a charging and discharging plug-in mounting port in circuit connection with the battery module, the battery module is formed by connecting four or eight battery units (1) in series in a group, the battery units (1) are lithium ion battery monomers made of large-capacity square aluminum shell battery cores with the capacity of 100Ah to 300Ah, and a boosting module (5) is arranged in an output circuit of the battery module, which is in circuit connection with the charging and discharging plug-in mounting port, a damping structure is arranged between the inner wall of the box body (1) and the battery module, four or eight battery units (1) are connected in series and then the voltage output is 10V-34V, the output voltage is boosted to 48V-60V by the direct current booster circuit of the booster module (5) or to 220V by the alternating current booster circuit of the booster module (5).
2. The multifunctional lithium ion battery energy storage system of claim 1, wherein: the battery module is characterized by further comprising a BMS hardware protection circuit board (6), wherein the BMS hardware protection circuit board (6) is connected in series in a connecting circuit of the battery module, and the battery module is separated from the boosting module (5) and the BMS hardware protection circuit board (6) through an insulating piece (7).
3. The multifunctional battery energy storage system of claim 2, wherein: insulator (7) are installed in the top of battery module, and the upper surface of this insulator (7) is equipped with the confession the concave position structure of boost module (5) and BMS hardware protection circuit board (6) holding and make things convenient for the circuit to hide the line groove of crossing of connecting, still install on box (4) and cover upper cover (8) and handle (9) of arranging insulator (7) top in.
4. The multifunctional battery energy storage system of claim 1, wherein: four or eight battery units (1) are reliably bonded together through flame-retardant foam double-sided adhesive tapes (2) stuck between two adjacent battery units (1).
5. The multifunctional battery energy storage system of claim 4, wherein: the flame-retardant foam double-sided adhesive tape (2) is positioned on the side surface of the battery unit (1) close to the periphery.
6. The multifunctional battery energy storage system of claim 1, wherein: the damping structure comprises a plurality of elastic rubber columns with at least one end provided with a sucker, one end of each elastic rubber column is adsorbed on the inner wall of the box body (4) through the sucker, and the other end of each elastic rubber column is propped against the battery module; or the damping structure comprises a horizontal buffer plate arranged in the box body (4) and a plurality of elastic buffer columns positioned between the buffer plate and the inner bottom surface of the box body (4), and the battery module is borne on the buffer plate.
7. The multifunctional battery energy storage system of claim 1, wherein: the shock absorption structure comprises a sealed wear-resistant soft rubber outer shell (12) and a shock absorption and heat dissipation medium (13) filled in the wear-resistant soft rubber outer shell (12), wherein the shock absorption and heat dissipation medium (13) is liquid, and a liquid changing port with a sealing plug is arranged on the wear-resistant soft rubber outer shell (12).
8. The multifunctional lithium ion battery energy storage system of claim 1, wherein: the damping structure comprises at least two elastic clamping devices arranged on the inner wall of the box body (4), each elastic clamping device comprises a guide clamping piece (15) which is vertically arranged in the box body (4), and a spring (16) positioned between the guide clamping piece (15) and the inner side wall of the box body (4), the upper end part of each guide clamping piece (15) is made into a bevel edge structure inclined outwards, the battery module is axially inserted into a space between the at least two elastic clamping devices, and the battery module is inserted into the guide and elastically clamped through the at least two guide clamping pieces (15).
9. The multifunctional lithium ion battery energy storage system of claim 2, wherein: also comprises a safety alarm device.
10. The multifunctional lithium ion battery energy storage system of claim 9, wherein: an upper cover (8) and a handle (9) which are covered above the insulating part (7) are arranged on the box body (4), the handle (9) is connected to the upper cover (8) through a rotating shaft in a way of being capable of turning up and down, the upper cover (8) is correspondingly provided with a containing groove for the handle (9) to be contained and stored downwards, the safety alarm device comprises a miniature alarm and an alarm switch which are connected with a BMS hardware protection circuit board (6), and a movable contact switch which is positioned in the containing groove and can connect the circuits of the miniature alarm and the alarm switch, when the alarm switch is turned on, the handle (9) is collected in the containing groove, the handle or the toggle block connected with the rotating shaft pushes the touch switch to disconnect the connection circuit of the miniature alarm and the alarm switch, and when the handle (9) is rotated out of the containing groove, the top of the movable contact switch is released, so that the connection circuit of the miniature alarm and the alarm switch is communicated to realize alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110641480.XA CN113206337B (en) | 2021-06-09 | 2021-06-09 | Multifunctional lithium ion battery energy storage system with high space utilization rate for light electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110641480.XA CN113206337B (en) | 2021-06-09 | 2021-06-09 | Multifunctional lithium ion battery energy storage system with high space utilization rate for light electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113206337A true CN113206337A (en) | 2021-08-03 |
| CN113206337B CN113206337B (en) | 2022-01-04 |
Family
ID=77024324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110641480.XA Active CN113206337B (en) | 2021-06-09 | 2021-06-09 | Multifunctional lithium ion battery energy storage system with high space utilization rate for light electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113206337B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204567897U (en) * | 2015-01-28 | 2015-08-19 | 天津市禧福珑电动自行车有限公司 | Battery-driven car shock absorber |
| CN107611296A (en) * | 2017-08-11 | 2018-01-19 | 湖南小步科技有限公司 | A kind of lithium battery pack used for electric vehicle |
| CN207845703U (en) * | 2017-09-30 | 2018-09-11 | 佛山市博奥智能装备有限公司 | It is a kind of that through-flow fan impeller is made to keep vertical general tray mechanism |
| KR20180123373A (en) * | 2017-05-08 | 2018-11-16 | 주식회사 엘지화학 | Battery cell, battery module, battery pack and vehicle comprising the same |
| CN208570739U (en) * | 2018-08-24 | 2019-03-01 | 东莞骑士换电电子科技有限公司 | A kind of battery pack of shared battery |
| CN109747458A (en) * | 2019-02-19 | 2019-05-14 | 北京华材中泰科技有限公司 | A kind of electric motor intelligent charger baby warning device |
| CN109878442A (en) * | 2019-02-25 | 2019-06-14 | 重庆金康动力新能源有限公司 | Power supply box, Vehicular power system and vehicle |
| CN209458111U (en) * | 2018-09-25 | 2019-10-01 | 佛山市博奥智能装备有限公司 | High life constant pressure gear pump |
| US20200028224A1 (en) * | 2018-07-20 | 2020-01-23 | Lisa Draexlmaier Gmbh | Battery including temperature control system |
| CN211018363U (en) * | 2020-01-14 | 2020-07-14 | 王文明 | Boost lithium battery |
| US20210083335A1 (en) * | 2019-09-13 | 2021-03-18 | Transchill, LLC | Battery-based system for powering refrigerated transport and other industrial applications |
| CN212861739U (en) * | 2020-08-06 | 2021-04-02 | 淮安亚玛科技有限公司 | Damping device of electric vehicle |
| CN112701367A (en) * | 2021-01-06 | 2021-04-23 | 中能盈鑫技术有限公司 | Lithium ion battery system |
-
2021
- 2021-06-09 CN CN202110641480.XA patent/CN113206337B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204567897U (en) * | 2015-01-28 | 2015-08-19 | 天津市禧福珑电动自行车有限公司 | Battery-driven car shock absorber |
| KR20180123373A (en) * | 2017-05-08 | 2018-11-16 | 주식회사 엘지화학 | Battery cell, battery module, battery pack and vehicle comprising the same |
| CN107611296A (en) * | 2017-08-11 | 2018-01-19 | 湖南小步科技有限公司 | A kind of lithium battery pack used for electric vehicle |
| CN207845703U (en) * | 2017-09-30 | 2018-09-11 | 佛山市博奥智能装备有限公司 | It is a kind of that through-flow fan impeller is made to keep vertical general tray mechanism |
| US20200028224A1 (en) * | 2018-07-20 | 2020-01-23 | Lisa Draexlmaier Gmbh | Battery including temperature control system |
| CN208570739U (en) * | 2018-08-24 | 2019-03-01 | 东莞骑士换电电子科技有限公司 | A kind of battery pack of shared battery |
| CN209458111U (en) * | 2018-09-25 | 2019-10-01 | 佛山市博奥智能装备有限公司 | High life constant pressure gear pump |
| CN109747458A (en) * | 2019-02-19 | 2019-05-14 | 北京华材中泰科技有限公司 | A kind of electric motor intelligent charger baby warning device |
| CN109878442A (en) * | 2019-02-25 | 2019-06-14 | 重庆金康动力新能源有限公司 | Power supply box, Vehicular power system and vehicle |
| US20210083335A1 (en) * | 2019-09-13 | 2021-03-18 | Transchill, LLC | Battery-based system for powering refrigerated transport and other industrial applications |
| CN211018363U (en) * | 2020-01-14 | 2020-07-14 | 王文明 | Boost lithium battery |
| CN212861739U (en) * | 2020-08-06 | 2021-04-02 | 淮安亚玛科技有限公司 | Damping device of electric vehicle |
| CN112701367A (en) * | 2021-01-06 | 2021-04-23 | 中能盈鑫技术有限公司 | Lithium ion battery system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113206337B (en) | 2022-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105895843A (en) | Intelligent lithium ion battery module | |
| US10675796B2 (en) | Method and apparatus for manufacturing battery pack having fixing structure made from thermoplastic resin | |
| CN101635372B (en) | Lithium-ion power battery | |
| CN107611475B (en) | Soft package power lithium ion battery module and assembling method thereof | |
| US9537126B2 (en) | Battery pack | |
| CN211555995U (en) | Soft packet of lithium cell equipment support | |
| EP3937299A1 (en) | Battery module and battery pack | |
| CN113206337B (en) | Multifunctional lithium ion battery energy storage system with high space utilization rate for light electric vehicle | |
| CN213636148U (en) | Square battery module | |
| CN213782117U (en) | Lithium battery heat dissipation device | |
| CN109802061B (en) | Power battery pack of automobile start-stop system | |
| CN213026315U (en) | Battery pack | |
| CN110600641A (en) | 48V system lithium ion battery module | |
| CN115642353A (en) | Battery module, battery package and consumer | |
| CN214542391U (en) | Battery module and battery system for light electric vehicle | |
| CN210617901U (en) | Lithium battery balance control system of electric automobile | |
| CN201413848Y (en) | Lithium-ion power battery | |
| CN203644573U (en) | Power supply module and separator thereof | |
| CN209963162U (en) | Lithium ion starting battery with Bluetooth and communication functions | |
| CN204441348U (en) | Carrier storage battery module | |
| CN221272578U (en) | Sightseeing vehicle-mounted power battery with lead-acid battery changed into lithium battery | |
| CN2508410Y (en) | Lithium ion battery capacity equalization charge and discharge controlling and protecting device | |
| CN201838633U (en) | Battery pack with double battery support slots | |
| CN212162862U (en) | Battery pack system | |
| CN206388752U (en) | Automobile starting storage battery and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |