CN115013213A - Lithium ion battery pack assembly for starting and starting method - Google Patents
Lithium ion battery pack assembly for starting and starting method Download PDFInfo
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- CN115013213A CN115013213A CN202210717683.7A CN202210717683A CN115013213A CN 115013213 A CN115013213 A CN 115013213A CN 202210717683 A CN202210717683 A CN 202210717683A CN 115013213 A CN115013213 A CN 115013213A
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- battery pack
- starting
- battery
- internal combustion
- combustion engine
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 31
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 claims description 48
- 230000008569 process Effects 0.000 claims description 44
- 210000004027 cell Anatomy 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 14
- 210000003719 b-lymphocyte Anatomy 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract description 2
- 239000013589 supplement Substances 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 17
- 229910052744 lithium Inorganic materials 0.000 description 17
- 238000003860 storage Methods 0.000 description 16
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 14
- 238000009434 installation Methods 0.000 description 10
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
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- 239000007788 liquid Substances 0.000 description 3
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- 230000009467 reduction Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
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- 239000000047 product Substances 0.000 description 2
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- 125000006850 spacer group Chemical group 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 229910001000 nickel titanium Inorganic materials 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0859—Circuits or control means specially adapted for starting of engines specially adapted to the type of the starter motor or integrated into it
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
- F02N11/0866—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery comprising several power sources, e.g. battery and capacitor or two batteries
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a lithium ion battery pack assembling and starting method for starting, which is used for electrically connecting a generator and a starting motor; the lithium ion battery pack for starting comprises a group A battery pack and a group B battery pack; the generator is used for charging the battery packs of the group A and the battery packs of the group B through the charging circuit; the group A of battery packs are used as starting power supplies and used for starting the starting motor; and the group B battery pack is used as an energy storage power supply and is used for performing unidirectional electrical connection on the group A battery pack through the circuit balancer to supplement electric energy. The invention has reasonable design, compact structure and convenient use.
Description
Technical Field
The invention relates to a lithium ion battery pack assembly for starting and a starting method.
Background
The current mature internal combustion engine (automobile) is used as a power supply (battery) for starting, has been born for 162 years till now, and is provided with lead-acid batteries with high pollution and strong corrosion. The service life cycle times are 300-500 at most, and the capacity storage capacity and the capacitance reduction are obvious and are easily influenced by low temperature. Lead-acid batteries are classified into traction (power, capacity) type and starting type (for starting internal combustion engines) according to the nature of use. The existing battery has unreasonable structure, and the characteristics of various batteries are not fully utilized to fully exert the functions of the existing battery.
Disclosure of Invention
The invention aims to solve the technical problem of providing a lithium ion battery pack assembling and starting method for starting. Mother case: application No. 2021-08-24 of 202110975823.6 based on starting method and assembly process of Li-ion battery.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a starting method based on a lithium ion battery executes the following steps,
s3.1, firstly, when the internal combustion engine is started, the battery pack B supplies electric power to attract the electromagnetic switch of the motor through the starting ignition switch, at the moment, the electric power of the battery pack A drives the starting motor to rotate, and the internal combustion engine starts to run; then, under the driving of the internal combustion engine, the generator starts to work, the current of the generator charges the battery pack B and the battery pack A, and meanwhile, the power is supplied to the load part;
and S3.2, when the capacitance and the voltage of the battery pack B and the capacitance and the voltage of the battery pack A reach set values, balancing the voltages required by the battery pack A and the battery pack B respectively by using a circuit balancer.
A method for assembling a lithium ion battery pack for starting, by means of a conveyor belt; the following steps are executed;
s1.1, firstly, pre-storing module frames in a storage channel in a stacking mode, wherein the module frame at the bottommost layer is positioned on a first wedge head; then, under the control of a crankshaft connecting rod blanking manipulator, the first wedge head retreats, so that the module frame falls onto the second wedge head; secondly, the second wedge head retreats, so that the module frame gradually falls onto a second lower supporting plate along a second inclined plane and is pressed and loaded to the output roller by a spring bearing supporting plate;
s1.2, the output roller rotates to output the module frame to a transmission carrier on an upper frame station of the conveyor belt along the guide inclined plane.
A method for assembling a lithium ion battery pack for starting, by means of a conveyor belt; the following steps are executed;
s1.3, at a battery installation station, firstly, placing a single battery on a front support fork; then, under the guide of a rear side baffle plate and a front side guide arc plate, a front swing arm group, a rear swing arm group and a rear carrying platform with a push rod form a parallelogram swing lifting mechanism to send a single battery to the module frame; secondly, the front-supporting hand fork enters from the mounting process notch, and when the front-supporting hand fork reaches the bottom of the mounting process notch, the front-supporting hand fork is blocked and swings upwards in a reverse direction to be tilted, and gradually leaves from the module frame and finally leaves from the carrier process notch;
and S1.4, when the transport carrier leaves the battery installation station, swinging the front support fork back to the initial station to wait for the next single battery to be placed on the front support fork.
As a further improvement of the above technical solution:
by means of a conveyor belt; the following steps are executed;
s1.5, mounting accessories on a module frame at a manual assembly station;
s1.6, conducting wire electrical connection is carried out on a single battery at a wiring station;
s1.7, detecting parameter information of a single battery at a detection station;
and S1.8, marking information on the module frame at the marking station according to the detection parameter information, and conveying to the next process for carrying out S2 integral assembly.
A lithium ion battery pack assembling method for starting comprises the following steps of S2 overall assembling:
s2.1, firstly, the bottom of the marked single battery is adjusted to be matched with a bottom positioning groove; then, the spring force of the auxiliary elastic telescopic V-shaped chuck is set, and two ends of a single battery are clamped; secondly, selecting and positioning the thickness of the process pad; then, the hinged buckle cover is installed through the hinged part, the lower hem of the hinged buckle cover is buckled on the outer box body, and the hinged buckle cover is connected through the end face bolt;
s2.2, placing the group A battery pack and/or the group B battery pack into an outer box body and fixing;
s3, executing the whole detection step; building a simulated starting system and carrying out a detection step;
s3.1, firstly, when the internal combustion engine is started, the battery pack B supplies electric power to attract the electromagnetic switch of the motor through the starting ignition switch, at the moment, the electric power of the battery pack A drives the starting motor to rotate, and the internal combustion engine starts to run; then, under the driving of the internal combustion engine, the generator starts to work, the current of the generator charges the battery pack B and the battery pack A, and meanwhile, the power is supplied to the load part;
and S3.2, when the capacitance and the voltage of the battery pack B and the capacitance and the voltage of the battery pack A reach set values, balancing the voltages required by the battery pack A and the battery pack B by the circuit balancer.
The starting battery pack for the internal combustion engine (automobile) is manufactured by taking a lithium ion lithium titanate cell with high multiplying power as a main material and matching one or more lithium ion cells made of other materials with the requirements of different power internal combustion engines, different climates and vehicle-mounted electric load conditions. The battery not only can be used for quickly starting the internal combustion engine under various working conditions, but also can supply power to all low-voltage electric appliances on machinery or vehicles and bear the maximum charging current generated by a generator carried by the internal combustion engine.
The advantages of the invention are numerous, for example:
1. meets the climate of the region where people can live on the earth, has enough electric power in the temperature of-50 ℃ to 50 ℃, quickly starts the internal combustion engine, and does not need to specially perform heat preservation measures on the battery
2. The service life is very long, and the cycle number of the service life can reach 20000 times. The whole process needs no maintenance.
3. The extremely long check-in time, standing for 365 days after full charge, still has the electric power for starting the internal combustion engine, is the best starting power supply of the emergency equipment of the internal combustion engine
4. The light weight and the small volume are convenient for hidden installation.
5. The product is environment-friendly because no pollutant is generated during production, use and waste treatment.
6. The product is very safe, and when the battery is punctured, extruded, collided or even short-circuited, the battery does not catch fire or explode.
The invention has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use.
Drawings
Fig. 1 is a schematic diagram of a battery circuit of the present invention.
Fig. 2 is a schematic diagram of the cell structure of the present invention.
Fig. 3 is a schematic view of the structure of the battery module according to the present invention.
Fig. 4 is a schematic view of an assembly structure of the battery module according to the present invention.
Fig. 5 is a schematic diagram of a battery mounting structure according to the present invention.
Fig. 6 is a schematic view of a drop-in battery configuration of the present invention.
Wherein: 1. A generator; 2. a battery case assembly; 3. a group of battery packs; 4. b group battery pack; 5. a battery cell bracket; 6. a power management system A; 7. a power management system B; 8. a group A of switches; 9. a circuit balancer; 10. a power supply main switch; 11. a motor magnetic switch; 12. starting the motor; 13. starting a switch; 14. a fuse box; 15. a load section; 16. a charging circuit; 17. an outer case; 18. a battery A group; 19. a battery B group; 20. a module frame; 21. the hinged buckle cover; 22. a single battery; 23. a cap gap; 24. a hinge portion; 25. an end face bolt; 26. a lower recess; 27. a process bevel; 28. a process neutral gear; 29. positioning a process pad; 30. a top spacer plate; 31. a bottom positioning groove; 32. installing a process notch; 33. the auxiliary elastic telescopic V-shaped chuck; 34. a storage channel; 35. a first process socket; 36. a second process bottom tank; 37. carrying a carrying platform; 38. a spring loaded pallet; 39. an output roller; 40. a guide slope; 41. a conveyor belt; 42. a transport vehicle; 43. a carrier process notch; 44. a battery installation station; 45. subsequent stations; 46. a front swing arm group; 47. a rear swing arm group; 48. a rear carrying platform with a push rod; 49. a front support fork; 50. a rear arm; 51. a front one-way stopper; 52. a rear side baffle; 53. a front guide arc plate; 54. a crankshaft connecting rod blanking manipulator; 55. a first carrier arm; 56. a second carrying arm; 57. a first cam; 58. a second cam; 59. a second inclined plane; 60. and a second lower supporting plate.
Detailed Description
As shown in fig. 1 to 6, the lithium ion battery for starting of the present embodiment is used for electrically connecting the generator 1 and the starter motor 12; the lithium ion battery pack for starting comprises a group A battery pack 3 and a group B battery pack 4;
the generator 1 is used for charging the group A battery pack 3 and the group B battery pack 4 through the charging circuit 16;
the group A battery pack 3 is used as a starting power supply and is used for starting the starting motor 12;
and the group B battery pack 4 is used as an energy storage power supply and is used for unidirectionally and electrically connecting the group A battery pack 3 through the circuit balancer 9 to supplement electric energy and supply power for all loads except for starting.
The group A battery pack 3 and the group B battery pack 4 are separately arranged in the battery shell component 2, respective positive pole pile heads are led out respectively to be connected with the starting motor 12 and/or the load part 15, and the negative pole pile heads of the group A battery pack 3 and the group B battery pack 4 are arranged on the battery shell component 2 in parallel.
The group A battery pack 3 is matched with a power management system A6, and the group B battery pack 4 is matched with a power management system B7;
the group A battery pack 3 is independently and electrically connected with a starting motor 12 through a group A switch 8; the starting motor 12 is provided with a motor magnetic switch 11;
the group B battery pack 4 is electrically connected with a load part 15 through a power main switch 10;
the group B battery pack 4 is electrically connected with a motor magnetic switch 11 through a starting switch 13;
the group A battery pack 3 is a lithium titanate battery;
the group B battery pack 4 comprises lithium iron phosphate or a ternary lithium battery or other adaptive batteries;
the circuit balancer 9 comprises a one-way diode, so that one-way output is realized, and as expansion, a voltage transformation module can be added, so that the voltages of the two batteries are balanced and stable;
the circuit balancer 9 comprises a manual reset switch, and when the group A battery pack 3 is short-circuited during charging, the manual reset switch automatically disconnects manual reset;
the group B battery packs 4 are respectively and electrically connected with the starting switch 13 and/or the load part 15 through the fuse box 14; the fuse box 14 controls the short circuit of the group B battery pack 4;
the group A battery pack 3 and/or the group B battery pack 4 are respectively supported and connected through a battery cell bracket 5; the group a battery pack 3 and the group B battery pack 4 are integrally mounted in the battery case assembly 2.
The group a battery pack 3 and the load unit 15 have an open connection state, that is, a disconnected state and a switch-off state employed to avoid the problem in the present patent.
In the assembly system of the lithium ion battery pack for starting of the present embodiment, the assembled lithium ion battery pack for starting includes a battery case assembly 2; the battery case assembly 2 includes an outer case 17; the A group battery pack 3 and/or the B group battery pack 4 are/is arranged in the outer box body 17;
the group a battery pack 3 comprises a module frame 20 and a battery group a 18 placed into the corresponding module frame 20 and/or the group B battery pack 4 comprises a module frame 20 and a battery group B19 placed into the corresponding module frame 20;
a hinge part 24 is arranged at one side of the upper port of the module frame 20, and a hinge buckle cover 21 is hinged on the hinge part 24; in the hinge part 24, the rotating shaft is in clearance fit with the rotating sleeve;
a number of individual cells 22 are placed in the module frame 20; a cover cap notch 23 is arranged on the hinged buckle cover 21 and used for exposing an electrode so as to connect a lead;
the hinged buckle cover 21 is connected with the upper end of the module frame 20 through an end face bolt 25;
a lower concave part 26 is arranged in the middle of the hinged buckle cover 21, a process inclined plane 27 is respectively arranged at the head part and the root part side of the lower concave part 26, and a process neutral position 28 is arranged on the module frame 20; a top partition plate 30 and a positioning process pad 29 are arranged on the lower surface of the lower concave part 26;
a top spacer plate 30 for side positioning of the individual cells 22;
a bottom positioning groove 31 is provided at the bottom of the module frame 20 for receiving the lower end of the single battery 22;
an installation process notch 32 is arranged on one side wall of the module frame 20; auxiliary elastic telescopic V-shaped chucks 33 are arranged on two side walls of the module frame 20;
the auxiliary elastic telescopic V-shaped chuck 33 is used for clamping two ends of the single battery 22;
the system comprises a conveyor belt 41 for connecting various stations, wherein the stations comprise an upper frame station, a battery installation station 44 and a subsequent station 45;
a transport carrier 42 for carrying the module frame 20 is disposed on the conveyor belt 41; a carrier process notch 43 is provided on the transport carrier 42.
A storage channel 34 is vertically provided at the frame station to store the module frame 20; first process sockets 35 are arranged on two sides of the lower end of the storage channel 34 in one direction, and second process bottom grooves 36 are arranged on two sides of the lower end of the storage channel 34 in the other direction; the second process bottom groove 36 is positioned below the first process socket 35;
a receiving platform 37 is arranged below the storage channel 34, a plurality of output rollers 39 are arranged on the receiving platform 37, spring bearing plates 38 are arranged between the output rollers 39 and at the rear part of the output rollers, and a guide inclined surface 40 is arranged at the output side of the receiving platform 37;
naturally, the spring support plate 38 is higher than the output roller 39, and after the module frame 20 is supported, the spring support plate 38 descends, and the lower surface of the module frame 20 is in rolling contact with the output roller 39; an auxiliary roller is arranged on the upper surface of the spring bearing supporting plate 38;
a crankshaft connecting rod blanking manipulator 54 is arranged at the lower outlet of the storage channel 34 and comprises a first loading arm 55 and a second loading arm 56 which are oppositely arranged; the first loading arm 55 and the second loading arm 56 are linked to be alternately inserted into the storage channel 34 in an inlet-outlet manner; the first cam 57 is adapted to enter a side wall cutout of the module frame 20 of the second floor; the second cam 58 is used to hold the bottom or side opening of the bottom module frame 20; a passage for the output module frame 20 is provided below the storage passage 34;
a first carrier arm 55 to and from the first process socket 35;
a second carrier arm 56, which enters and exits the second process bottom tank 36;
the dislocation height between the first process socket 35 and the second process bottom groove 36 is matched with the dislocation height of the side wall gap of the adjacent layer; a first wedge 57 is arranged at the front end of the first carrying arm 55; a second wedge head 58 is arranged at the front end of the second carrying arm 56, and when the first wedge head 57 is in contact with the module frame 20 at the second bottom layer, the second wedge head 58 is not in contact with the module frame 20 at the bottommost layer; when the first cam 57 is not in contact with the module frame 20 of the second floor, the second cam 58 is in contact with the module frame 20 of the lowermost floor;
a second inclined plane 59 is arranged at the front end of the second inclined wedge head 58, and a second lower supporting plate 60 is arranged at the lower end of the second inclined plane 59; the second lower supporting plates 60 and the second inclined surfaces 59 of the second carrying arms 56 on the two sides are arranged in a staggered manner;
the second lower blade 60 is located no higher than the spring loaded blade 38;
the spring carrier plate 38 has a cutout that is wider than the width of the second bottom bracket 60.
At the battery mounting station 44, a front swing arm set 46 and a rear swing arm set 47 with the same structure are hinged at one side of the conveyor belt 41;
the front swing arm set 46 includes two parallel and equal length curved links; the rear swing arm group 47 includes two parallel and equal-length curved connecting rods;
the front swing arm set 46, the rear swing arm set 47 and the rear carrying platform 48 with the push rod form a parallelogram swing lifting mechanism;
a rear bearing platform 48 with a push rod is respectively hinged above the front swing arm set 46 and the rear swing arm set 47, and a front support fork 49 is unidirectionally hinged at the front end of the rear bearing platform 48 with the push rod;
a rear stop arm 50 is arranged at the lower part of the front end of the rear carrying platform 48 with the push rod, and a front one-way limiting block 51 used for being abutted against the rear stop arm 50 is arranged at the lower part of the rear end of the front supporting fork 49;
a rear side baffle 52 is arranged on the other side above the battery installation station 44; a front guide arc plate 53 is arranged on one side above the battery installation station 44; the front guide arc plate 53 is positioned in the hollow part of the front support fork 49;
during the process that the front supporting hand fork 49 receives the single battery 22 to be assembled and is placed on the module frame 20 to swing downwards, the front supporting hand fork 49 enters from the installation process notch 32, and when the front supporting hand fork reaches the bottom of the installation process notch 32, the front supporting hand fork is blocked to swing upwards and tilt, gradually leaves the module frame 20 and finally leaves from the carrier process notch 43;
when the transport carrier 42 leaves the battery mounting station 44, the front stock fork 49 swings back to the initial station, waiting for the next individual battery 22 to be placed on the front stock fork 49.
The subsequent station 45 comprises
A manual assembly station for mounting accessories on the module frame 20;
a wiring station for electrically connecting the individual cells 22 by wires;
a detection station for detecting parameter information of the individual cells 22;
and a marking station for marking information on the module frame 20 according to the detection parameter information and conveying the information to the next process for integral assembly.
The starting system based on the lithium ion battery pack for starting of the embodiment comprises a battery pack, a generator 1, a load part 15 and a starting motor 12;
a generator 1 for charging the group a battery pack 3 and the group B battery pack 4 through a charging circuit 16 and supplying power to a load unit 15;
a starter motor 12 for being electrically driven by the group B battery packs 4 to output power;
and a load part 15 for electrical connection with the battery pack.
The starting method based on the lithium ion battery of the embodiment executes the following steps,
s3.1, firstly, when the internal combustion engine is started, the B battery pack 4 supplies electric power to attract the motor electromagnetic switch 11 through the starting ignition switch 13, at the moment, the electric power of the A battery pack 3 drives the starting motor 12 to rotate, and the internal combustion engine starts to run; then, the generator 1 starts to operate under the driving of the internal combustion engine, and the current of the generator 1 charges the B-cell group 4 and the a-cell group 3 and also supplies sufficient electric power to the load portion 15.
And S3.2, when the capacitance and the voltage of the B battery pack 4 and the capacitance and the voltage of the A battery pack 3 reach set values, the circuit balancer 9 automatically balances the voltages required by the A battery pack 3 and the B battery pack 4 respectively.
S3.3, the generating capacity of the generator 1 is influenced by the voltage of the B battery pack 4;
the lithium ion battery pack assembly method for startup of the present embodiment, by means of the conveyor belt 41; the following steps are executed;
s1.1, firstly, pre-storing module frames 20 in a storage channel 34 in a stacking mode, wherein the module frame 20 at the bottommost layer is positioned on a first wedge head 57; then, under the control of the crankshaft connecting rod blanking manipulator 54, the first wedge 57 retracts, so that the module frame 20 falls onto the second wedge 58; next, the second cam 58 is retracted, so that the module frame 20 gradually falls down along the second ramp 59 onto the second lower blade 60 and is carried by the spring-loaded blade 38 down to the output roller 39;
s1.2, the output roller 39 rotates to output the module frame 20 to the conveying carrier 42 on the upper frame station of the conveying belt 41 along the guide inclined surface 40.
The lithium ion battery pack assembly method for startup of the present embodiment, by means of the conveyor belt 41; the following steps are executed;
s1.3, at the battery installation station 44, first, a single battery 22 is placed on the front support fork 49; then, under the guidance of the rear side baffle plate 52 and the front side guide arc plate 53, the front swing arm set 46, the rear swing arm set 47 and the rear carrying platform 48 with the push rod form a parallelogram swing lifting mechanism to send the single battery 22 down to the module frame 20; secondly, the front-holding hand fork 49 enters from the mounting process notch 32, and when the front-holding hand fork reaches the bottom of the mounting process notch 32, the front-holding hand fork swings and tilts upwards in the opposite direction to gradually leave the module frame 20 and finally leave from the carrier process notch 43;
s1.4, when the transport carrier 42 leaves the battery mounting station 44, the front support fork 49 swings back to the initial station, waiting for the next individual battery 22 to be placed on the front support fork 49.
By means of the conveyor belt 41; the following steps are executed;
s1.5, mounting accessories on the module frame 20 at a manual assembly station;
s1.6, conducting wire electrical connection is carried out on the single battery 22 at a wiring station;
s1.7, detecting parameter information of a single battery 22 at a detection station;
s1.8, at the marking station, marking information on the module frame 20 according to the detection parameter information, and conveying the information to the next process for integral assembly S2.
The lithium ion battery pack assembly method for starting of the present embodiment includes an S2 overall assembly step:
s2.1, firstly, the bottom of the marked single battery 22 is adjusted to be matched with the bottom positioning groove 31; then, the spring force of the auxiliary elastic telescopic V-shaped chuck 33 is set to clamp two ends of the single battery 22; secondly, selecting and positioning the thickness of the process pad 29; then, the hinged buckle cover 21 is installed through the hinged part 24, and the lower hem of the hinged buckle cover is buckled on the outer box body 17 and is connected through the end face bolt 25;
s2.2, placing the group A battery pack 3 and/or the group B battery pack 4 into the outer box body 17 and fixing;
s3, executing the whole detection step; building a simulated starting system and carrying out a detection step;
s3.1, firstly, when the internal combustion engine is started, the B battery pack 4 supplies electric power to attract the motor electromagnetic switch 11 through the starting ignition switch 13, at the moment, the electric power of the A battery pack 3 drives the starting motor 12 to rotate, and the internal combustion engine starts to run; then, the generator 1 starts to operate under the driving of the internal combustion engine, and the current of the generator 1 charges the B-cell group 4 and the a-cell group 3 and also supplies sufficient electric power to the load portion 15.
And S3.2, when the capacitance and the voltage of the B battery pack 4 and the capacitance and the voltage of the A battery pack 3 reach set values, the circuit balancer 9 automatically balances the voltages required by the A battery pack 3 and the B battery pack 4 respectively.
The module frame 20 of the invention realizes modular installation, realizes ventilation and heat dissipation through the opening, the hinged buckle cover 21 realizes protection, the cap opening 23 facilitates the electrode to be exposed for electric connection, the hinged part 24 has a gap amount so that the end face bolt 25 is aligned with the screw hole, the lower concave part 26 provides strength to facilitate the electrode to be pressed down and fixed, the process inclined plane 27 avoids the blocking of the hinged connection, the process neutral position 28 reduces the weight to facilitate heat dissipation, the positioning process pad 29 is fixed in a matching thickness, the top spacing plate 30 realizes lateral fixation, the bottom positioning groove 31 realizes lateral spacing, the mounting process opening 32 facilitates the downward swinging of the hand fork, the auxiliary elastic telescopic V-shaped chuck 33 realizes lateral elastic support, thereby realizing the vibration absorption and the adaptation of thermal expansion and cold contraction, the storage channel 34 realizes the storage of the frame, the first process socket 35 and the second process bottom groove 36 realize the corresponding wedge head to pass in and out to bear the carrying platform 37, spring bearing plate 38 has realized the buffering whereabouts of slowing down, output roller 39 realizes horizontal output, the direction inclined plane 40 realizes the output direction, conveyer belt 41 realizes that the process links up, the work piece is carried in the support to transmission carrier 42 realization, carrier technology opening 43 makes things convenient for the fork to pass through, battery installation station 44, follow-up station 45 realizes the butt joint and corresponds the process, preceding swing arm group 46, back swing arm group 47 has realized that the battery steadily targets in place, compare in traditional assembly mode, avoid the violent activity of battery liquid, realize that horizontal direction component speed slows down slowly and avoid liquid to rock, vertical direction absorbs and rocks. The rear carrying platform 48 with the push rod realizes auxiliary adjustment of the position of the battery on the front supporting hand fork 49, obstruction is avoided through a gap, the rear blocking arm 50 is arranged at the rear, the front one-way limiting block 51 realizes limitation of downward swinging of the hand fork and upward swinging, the root part and the end part of the hand fork preferably have a bent arc part, so that obstruction is avoided, transition is smooth, the rear side blocking plate 52 realizes falling guide of the front side guide arc plate 53, the crankshaft connecting rod blanking manipulator 54 realizes linkage and speed matching through an intermediate linkage mechanism such as a gear set and the like, the first supporting arm 55 realizes frame falling through one step of the second supporting arm 56, the first inclined wedge head 57 realizes frame falling speed reduction through inclination of the second inclined wedge head 58, and the second inclined plane 59 and the second lower supporting plate 60 realize slow falling output of the lowest layer workpiece. The invention has ingenious design, solves the problem of shaking of the existing assembled battery liquid, and improves the automation degree of assembly.
According to the discharge capacity and power of the internal combustion engine and the working voltage of the starter, the starting battery pack consisting of the high-rate lithium titanate with the highest rate of 60C is responsible for starting the internal combustion engine and receives the quick charging of the battery pack by the self-contained charging generator of the internal combustion engine.
The battery pack is formed by connecting a plurality of high-rate lithium titanate battery cores in series and parallel through a bracket and a connecting sheet according to the working voltage of a starter on an internal combustion engine, performing system management inside the battery by a power management system BMS, arranging the finished battery in a plastic battery shell, fixing the battery with bolts and a plastic pressing plate, and connecting positive and negative connectors on the battery shell with leads. The battery pack has the charge-discharge maximum overcurrent and the positive and negative short-circuit protection, when the discharge overcurrent reaches more than 1500A, the BMS system intelligently and automatically opens the bypass shunt, when the current is more than 2500A, the battery pack enters the short-circuit protection, and the battery with the short-circuit protection can continue to work after being manually reset. The power management system is a purchased part. The invention omits the conventional structures such as a mechanical arm, a fixed frame body and the like.
The conventional internal combustion engine is not used independently, and is widely applied to various machines or vehicles of traffic, electric power, engineering, agriculture, ships, mines, petroleum, building and military, and the devices have lighting, sound, air-conditioning, horn, wiper, communication and other direct current electrical appliances which need to be powered by a storage battery, so that the storage battery has enough electric capacity. The lithium titanate is made of an expensive rare noble metal such as nickel titanium, and in order to save cost, a battery pack made of other lithium ion cells with much lower cost is incorporated in the manufacture of the battery pack to increase the capacity, so that the battery pack with multiple lithium ion cells is formed. Because the technical indexes of two monomer battery cores made of different materials, such as voltage, charge-discharge multiplying power, internal resistance and the like, are greatly different, the battery can be used only by intelligent and automatic control through one device. The characteristics of different battery packs are fully utilized, the advantages and disadvantages of the battery packs are mutually compensated, the battery packs are combined skillfully, and the effect that 1+1 is larger than 2 is realized. The lithium titanate battery with small capacity is quickly started, and when the lithium titanate battery is not successfully ignited for many times and is in voltage reduction and power shortage, the lithium titanate battery is unidirectionally supplemented with voltage through the pre-charged lithium iron phosphate battery. After the engine is started, the lithium iron phosphate battery is supplemented by the generator.
The operating state of lithium ion cells made of different materials is controlled by the BMS, when the battery pack is used for starting an internal combustion engine, the BMS intelligently controls the battery pack (A) made of lithium titanate to supply power to a starting motor of the internal combustion engine and a vehicle load, and after the internal combustion engine is started, a generator of the internal combustion engine starts to operate, and the BMS firstly charges the battery pack (A) made of lithium titanate and supplies power to a load of a low-voltage electrical appliance of the vehicle. When the electric quantity and the voltage of the battery pack (A) reach set values, the BMS automatically switches, and the generator carried by the internal combustion engine simultaneously charges all the battery packs and supplies power to various electrical loads of the vehicle. When the internal combustion engine is stopped, the internal combustion engine does not work because of the self-provided generator, in order to ensure that the electric load on the vehicle or machinery can be continuously and normally used, the BMS automatically controls the operation of the other lithium ion battery pack (B), and the electricity using condition of the battery pack does not influence the electricity storage of the lithium titanate battery pack (A), so that the starting electricity consumption of the internal combustion engine is fully ensured not to be influenced because the electricity of the battery pack (B) is excessively used.
The starting battery for the internal combustion engine is manufactured by taking the lithium ion lithium titanate cell with high multiplying power as a main material and matching one or more lithium ion cells made of other materials according to the requirements of internal combustion engines with different powers, different climates and vehicle-mounted electric load conditions.
In order to save the manufacturing and using cost, the practical requirements of starting and loading of the internal combustion engine are met. An exemplary battery pack fabrication scheme is described below
Lithium titanate is main lithium iron phosphate and is supplementary collocation group battery
The highest charging voltage of the monomer battery cell of lithium titanate is 2.75v of working voltage, 2.40v of discharging cut-off voltage is 2.0v, the highest charging voltage of lithium iron phosphate is 3.60v of working voltage, 3.20v of discharging cut-off voltage is 2.50v, the two monomer battery cells with different technical indexes are independently manufactured to be voltages which are in line with the internal combustion engine and the load of the internal combustion engine, and the capacities of the two monomer battery cells can be different. A battery pack (A) with 12V or 24V formed by connecting lithium titanate monomer battery cells 5 or 10 in series is independently managed by a lithium titanate BMS. 4 or 8 lithium iron phosphate monomer battery cells are connected in series to form a 12V or 24V battery pack (B) which is independently managed by a lithium iron phosphate BMS. The invention relates to a battery pack, in particular to a battery pack with a positive pole and a negative pole, which is characterized in that a battery pack A and a battery pack B are independently arranged in a battery shell, independent positive pole pile heads are respectively led out to connect a motor and a load, and the negative pole joints of the two battery packs are connected on the negative pole pile head of the battery shell in parallel.
The present invention is fully described for clarity of disclosure and is not exhaustive of the prior art.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. A starting method based on a lithium ion battery is characterized in that: executing the following steps S3.1, firstly, when the internal combustion engine is started, the B battery pack (4) supplies electric power to attract the motor electromagnetic switch (11) through the starting ignition switch (13), and at the moment, the electric power of the A battery pack (3) drives the starting motor (12) to rotate, so that the internal combustion engine starts to run; then, under the driving of the internal combustion engine, the generator (1) starts to work, the current of the generator (1) charges the B battery pack (4) and the A battery pack (3), and meanwhile, the load part (15) is supplied with power; and S3.2, when the capacitance and the voltage of the B battery pack (4) and the capacitance and the voltage of the A battery pack (3) reach set values, balancing the voltages required by the A battery pack (3) and the B battery pack (4) by the circuit balancer (9).
2. A method of assembling a lithium ion battery pack for startup, characterized by: the method comprises the step of S2 integral assembly:
s2.1, firstly, the bottom of a single battery (22) after being regulated and marked is matched with a bottom positioning groove (31); then, the spring force of the auxiliary elastic telescopic V-shaped chuck (33) is set, and two ends of a single battery (22) are clamped; secondly, selecting the thickness of a positioning process pad (29); then, the hinged buckle cover (21) is installed through a hinged part (24), and the lower hem of the hinged buckle cover is buckled on the outer box body (17) and connected through an end face bolt (25);
s2.2, placing the group A battery pack (3) and/or the group B battery pack (4) into an outer box body (17) and fixing;
s3, executing the whole detection step; building a simulated starting system and carrying out a detection step;
s3.1, firstly, when the internal combustion engine is started, the battery pack B (4) supplies electric power, the motor electromagnetic switch (11) is attracted through the starting ignition switch (13), at the moment, the starting motor (12) is driven to rotate by the electric power of the battery pack A (3), and the internal combustion engine starts to operate; then, under the driving of the internal combustion engine, the generator (1) starts to work, the current of the generator (1) charges the B battery pack (4) and the A battery pack (3), and simultaneously supplies power to the load part (15);
and S3.2, when the capacitance and the voltage of the B battery pack (4) and the capacitance and the voltage of the A battery pack (3) reach set values, balancing the voltages required by the A battery pack (3) and the B battery pack (4) respectively by using a circuit balancer (9).
3. The lithium ion battery pack assembly method for starting according to claim 2, wherein: after the S2 integral assembling step, S3 is performed:
s3, executing the whole detection step; building a simulated starting system and carrying out a detection step;
s3.1, firstly, when the internal combustion engine is started, the B battery pack 4 supplies electric power to attract the motor electromagnetic switch 11 through the starting ignition switch 13, at the moment, the electric power of the A battery pack 3 drives the starting motor 12 to rotate, and the internal combustion engine starts to run; then, the generator 1 starts to operate under the driving of the internal combustion engine, and the current of the generator 1 charges the B-cell group 4 and the a-cell group 3 and also supplies sufficient electric power to the load portion 15.
4, S3.2, when the capacitance and voltage of the B cell group 4 and the capacitance and voltage of the a cell group 3 reach set values, the respective required voltages of the a cell group 3 and the B cell group 4 are automatically balanced by the circuit balancer 9.
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| CN115013213B (en) | 2024-04-19 |
| CN113669184B (en) | 2022-08-26 |
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