CN117691281B - Lithium iron phosphate battery module of variable current discharge technology - Google Patents
Lithium iron phosphate battery module of variable current discharge technology Download PDFInfo
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- CN117691281B CN117691281B CN202311792389.3A CN202311792389A CN117691281B CN 117691281 B CN117691281 B CN 117691281B CN 202311792389 A CN202311792389 A CN 202311792389A CN 117691281 B CN117691281 B CN 117691281B
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- iron phosphate
- battery module
- lithium iron
- phosphate battery
- seat
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- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 62
- 238000005516 engineering process Methods 0.000 title abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000017525 heat dissipation Effects 0.000 claims description 30
- 238000009434 installation Methods 0.000 claims description 15
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of lithium batteries, and discloses a lithium iron phosphate battery module of a variable current discharge technology, which comprises a lithium iron phosphate battery module shell. This lithium iron phosphate group battery module of variable current discharge technique through setting up adjusting part, adjusts the distance between radiator fan and the battery module, can increase the time and the route that the air flows, make the heat can be taken away better, and then improve the radiating effect, thereby noise interference when reducing the use, through setting up radiator unit, the motor passes through the connecting rod and drives driving gear rotation, and then drive two driven gears and rotate, drive first screw rod and second screw rod simultaneously and rotate, first screw rod and second screw rod drive under the cooperation of gag lever post and remove about the seat, and then make and remove the seat and drive radiator fan and control the removal when supporting fixed radiator fan, thereby can increase heat radiating area, improve radiating efficiency.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a lithium iron phosphate battery pack module of a variable current discharge technology.
Background
The lithium iron phosphate battery module refers to a battery assembly formed by a plurality of lithium iron phosphate battery cells, and the battery cells are connected together to form an integral battery module.
The variable current discharge technology is a technology for controlling the discharge rate of a battery by adjusting the current in the discharge process, and in a lithium iron phosphate battery module, the variable current discharge technology can be used for flexibly controlling the discharge rate of the battery so as to meet the requirements of different application scenes.
In order to prevent the battery pack from being excessively high in temperature during charge and discharge, the battery pack is often matched with a heat dissipation device for use, and a heat dissipation mode which is commonly used at present is to arrange a heat dissipation sheet on a protective shell of a battery module, however, in order to prevent other sundries such as rainwater from directly contacting a battery, the protective shell is often closed for arrangement, so that internal heat is difficult to quickly dissipate, the heat dissipation efficiency is low when the battery pack is closely used for a long time, the problems of battery scalding and the like still can be caused, the actual heat dissipation effect is poor, and therefore, the lithium iron phosphate battery pack module of the variable current discharging technology is provided to solve the problems.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a lithium iron phosphate battery module of a variable current discharging technology, which has the advantages of good heat dissipation effect and the like, and solves the problems that the conventional heat dissipation mode of the battery pack is to arrange a heat dissipation sheet on a protective shell of the battery pack, however, in order to prevent other sundries such as rainwater and the like from directly contacting the battery, the protective shell is arranged in a closed way, so that internal heat is difficult to quickly dissipate, the heat conversion heat dissipation efficiency close to the heat dissipation sheet is low, the battery is still hot after long-time use, and the actual heat dissipation effect is poor.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a lithium iron phosphate battery module of variable current discharge technique, includes lithium iron phosphate battery module shell, the inside of lithium iron phosphate battery module shell is provided with a plurality of evenly distributed battery monomer, the interior bottom wall fixed mounting of lithium iron phosphate battery module shell has the heat conduction base pad, the top fixedly connected with baffle of heat conduction base pad, the top fixedly connected with spacer of heat conduction base pad, be provided with the radiating fin on the lithium iron phosphate battery module shell, the below of lithium iron phosphate battery module shell is provided with the supporting seat, be provided with adjusting part on the supporting seat, be provided with the radiating part between adjusting part and the lithium iron phosphate battery module shell, the top of lithium iron phosphate battery module shell is provided with the electrode, the bottom fixedly connected with series connection board of electrode, the top of lithium iron phosphate battery module shell inner wall is connected with the insulating seat;
The adjusting component comprises a mounting groove, electric telescopic rods, a first hinging seat, a mounting frame, a second hinging seat, rotating arms, supporting columns and a guide sliding sleeve, wherein the mounting groove is formed in the top of the supporting seat, the electric telescopic rods with the number of two are fixedly mounted on the inner walls of the left side and the right side of the mounting groove, the first hinging seat is fixedly connected to the free ends of the electric telescopic rods, the mounting frame is arranged between the adjusting component and the shell of the lithium iron phosphate battery pack module, the second hinging seats with the number of two are fixedly mounted on the front side and the rear side of the bottom of the mounting frame, the rotating arms are rotationally connected to the top of the first hinging seat, the supporting columns with the two supporting columns are fixedly connected between the supporting seat and the shell of the lithium iron phosphate battery pack module, and the guide sliding sleeve is slidingly connected to the outer surfaces of the supporting columns;
The heat dissipation assembly comprises a motor, a connecting rod, a driving gear, a first screw, a second screw, a driven gear, a movable seat and a heat dissipation fan, wherein the motor is fixedly arranged on the outer wall of the left side of the installation frame, the connecting rod is fixedly connected to the output shaft of the motor, the driving gear is fixedly arranged on the outer surface of the connecting rod, the first screw is fixedly connected to the right side of the connecting rod, the second screws with two numbers are rotationally connected to the installation frame, the driven gear is fixedly arranged on the outer surface of the second screw, the movable seat is fixedly connected to the outer surfaces of the first screw and the second screw through threads, and the heat dissipation fan is fixedly arranged at the top of the movable seat.
Preferably, the spacer is connected with the inner wall of the lithium iron phosphate battery module shell, and the spacer is contacted with the outer surface of the battery monomer.
Preferably, the insulating base is fixedly connected with the series plate, the insulating base is fixedly connected with the electrode, and the bottom of the series plate is contacted with the top of the battery cell.
Preferably, the inner bottom wall of the mounting groove is provided with two guide grooves, the bottom of the first hinge seat is fixedly connected with a guide block, and the guide block is in sliding connection with the guide grooves.
Preferably, the left side and the right side of the installation frame are fixedly connected with connecting columns, and one ends of the two connecting columns, which are opposite, are respectively and fixedly connected with two guide sliding sleeves.
Preferably, the number of the rotating arms is four, and the top of the rotating arms is rotationally connected with the bottom of the second hinging seat.
Preferably, the installation cavity is formed in the installation frame, and the driving gear and the driven gear are both located in the installation cavity.
Preferably, the right end of the connecting rod penetrates through the mounting frame and extends to the inside of the mounting cavity, and the connecting rod, the first screw rod and the second screw rod are rotationally connected with the mounting frame through bearings.
Preferably, the driven gears are respectively positioned at the front side and the rear side of the driving gear and are symmetrically arranged in the front-rear direction, and the driven gears are meshed with the driving gear.
Preferably, three limit rods are fixedly connected between the inner walls of the left side and the right side of the mounting frame, and the three movable seats are respectively and slidably connected with the three limit rods.
(III) beneficial effects
Compared with the prior art, the invention provides the lithium iron phosphate battery module with the variable current discharge technology, which has the following beneficial effects:
1. This lithium iron phosphate group battery module of variable current discharge technique is through setting up adjusting part, through two electric telescopic handle, make the free end of two electric telescopic handle extend simultaneously or shrink, and then drive two first articulated seat and remove in opposite directions or move in opposite directions under the cooperation of guide block and guide way, drive two rotating arms inwards or outwards rotate when first articulated seat removes, and then drive the installation frame and upwards or move down under the cooperation of second articulated seat, and then adjust the distance between radiator fan and the battery module, distance between according to the demand adjustment radiator fan and the battery module, time and the route that can increase the air flow, make the heat can be taken away better, and then improve the radiating effect, the fan can generally produce the noise simultaneously, through adjusting the distance between radiator fan and the battery module, can change the mode of air flow, the propagation of noise is reduced, thereby noise interference when reducing the use.
2. This lithium iron phosphate group battery module of variable current discharging technique, through setting up radiating component, the motor passes through the connecting rod and drives the driving gear rotation, and then drives two driven gears and rotate, drives first screw rod and second screw rod simultaneously and rotates, and first screw rod and second screw rod drive under the cooperation of gag lever post and remove the seat and control the removal, and then make to remove the seat and drive radiator fan and control the removal when supporting fixed radiator fan to can increase radiating area, improve radiating efficiency.
Drawings
FIG. 1 is a schematic view of a partial structure of the present invention in three dimensions;
FIG. 2 is a front cross-sectional view of a first partial structure of the present invention;
FIG. 3 is a front cross-sectional view of a second partial structure of the present invention;
FIG. 4 is a top cross-sectional view of a first partial structure of a heat dissipating assembly according to the present invention;
fig. 5 is a top cross-sectional view of a second partial structure of a heat dissipating assembly according to the present invention.
In the figure: the lithium iron phosphate battery module comprises a lithium iron phosphate battery module shell, 2 battery monomers, 3 heat conduction bottom pads, 4 baffles, 5 spacers, 6 radiating fins, 7 supporting seats, 8 adjusting components, 801 mounting grooves, 802 electric telescopic rods, 803 first hinging seats, 804 mounting frames, 805 second hinging seats, 806 rotating arms, 807 supporting columns, 808 guiding sliding sleeves, 9 radiating components, 901 motors, 902 connecting rods, 903 driving gears, 904 first screws, 905 second screws, 906 driven gears, 907 moving seats, 908 radiating fans, 10 electrodes, 11 serial plates and 12 insulating seats.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a lithium iron phosphate battery module of a variable current discharging technology includes a lithium iron phosphate battery module housing 1, a plurality of uniformly distributed battery cells 2 are disposed inside the lithium iron phosphate battery module housing 1, a heat conducting bottom pad 3 is fixedly mounted on an inner bottom wall of the lithium iron phosphate battery module housing 1, a baffle 4 is fixedly connected to a top of the heat conducting bottom pad 3, a spacer 5 is fixedly connected to a top of the heat conducting bottom pad 3, a radiating fin 6 is disposed on the lithium iron phosphate battery module housing 1, a supporting seat 7 is disposed below the lithium iron phosphate battery module housing 1, an adjusting assembly 8 is disposed on the supporting seat 7, a radiating assembly 9 is disposed between the adjusting assembly 8 and the lithium iron phosphate battery module housing 1, an electrode 10 is disposed on a top of the lithium iron phosphate battery module housing 1, a serial plate 11 is fixedly connected to a bottom of the electrode 10, and an insulating seat 12 is connected to a top of an inner wall of the lithium iron phosphate battery module housing 1.
Specifically, the spacer 5 is connected with the inner wall of the lithium iron phosphate battery module shell 1, the spacer 5 is contacted with the outer surface of the battery cell 2, the insulating seat 12 is fixedly connected with the series plate 11, the insulating seat 12 is fixedly connected with the electrode 10, and the bottom of the series plate 11 is contacted with the top of the battery cell 2.
Specifically, the adjusting component 8 is composed of eight components, namely, a mounting groove 801, an electric telescopic rod 802, a first hinging seat 803, a mounting frame 804, a second hinging seat 805, a rotating arm 806, a supporting column 807 and a guiding sliding sleeve 808, two guiding grooves are formed in the inner bottom wall of the mounting groove 801, a guiding block is fixedly connected to the bottom of the first hinging seat 803, the guiding block is slidably connected with the guiding groove, connecting columns are fixedly connected to the left side and the right side of the mounting frame 804, one ends of the two connecting columns are respectively fixedly connected with the two guiding sliding sleeves 808, the number of the rotating arms 806 is four, the top of the rotating arm 806 is rotationally connected with the bottom of the second hinging seat 805, the free ends of the two electric telescopic rods 802 stretch or shrink simultaneously, and then the two first hinging seats 803 are driven to move in opposite directions or move in opposite directions under the cooperation of the guiding block and the guiding groove, and then the two rotating arms 806 are driven to rotate inwards or outwards under the cooperation of the second hinging seats 805, and further the mounting frame 804 is driven to move upwards or downwards under the cooperation of the second hinging seats 805, and the distance between the battery module 803 and the heat dissipation module 9 is adjusted.
Specifically, the heat dissipation assembly 9 is composed of eight components, namely, a motor 901, a connecting rod 902, a driving gear 903, a first screw rod 904, a second screw rod 905, a driven gear 906, a moving seat 907 and a heat dissipation fan 908, an installation cavity is formed in the installation frame 804, the driving gear 903 and the driven gear 906 are located in the installation cavity, the right end of the connecting rod 902 penetrates through the installation frame 804 and extends to the inside of the installation cavity, the connecting rod 902, the first screw rod 904 and the second screw rod 905 are rotationally connected with the installation frame 804 through bearings, the two driven gears 906 are respectively located on the front side and the rear side of the driving gear 903 and are symmetrically arranged in front-rear, the driven gear 906 and the driving gear 903 are meshed with each other, the motor 901 drives the driving gear 903 to rotate through the connecting rod 902, and then drives the two driven gears 906 to rotate, meanwhile drives the first screw rod 904 and the second screw rod 905 to move left and right under the cooperation of a limiting rod, and then the moving seat 907 drives the heat dissipation fan 908 to move left and right while supporting the fixed heat dissipation fan 908, and the heat conduction bottom pad 3 and the heat dissipation fin 6 are matched with each other to increase the heat dissipation area.
Specifically, through fixedly connected with a quantity of three gag lever posts between the left and right sides inner wall of installing frame 804, three remove seat 907 respectively with three gag lever post sliding connection, and then to remove seat 907 and lead spacing, prevent that it from following first screw rod 904 and second screw rod 905 rotation.
In summary, according to the lithium iron phosphate battery module of the variable current discharging technology, through the adjustment assembly 8, the free ends of the two electric telescopic rods 802 are extended or contracted simultaneously, so that the two first hinge seats 803 are driven to move in opposite directions or move in opposite directions under the cooperation of the guide blocks and the guide grooves, the first hinge seats 803 move and simultaneously drive the two rotating arms 806 to rotate inwards or outwards, and then under the cooperation of the second hinge seats 805, the installation frame 804 is driven to move upwards or downwards, so that the distance between the heat dissipation assembly 9 and the battery module is adjusted, the distance between the heat dissipation fan 908 and the battery module is adjusted according to requirements, the time and the path of air flow can be increased, the heat can be better taken away, the heat dissipation effect is improved, meanwhile, the heat dissipation fan 908 generally generates noise, the air flow mode can be changed, the noise transmission is reduced, and the noise interference during use is reduced by adjusting the distance between the heat dissipation fan 908 and the battery module.
And, through setting up radiator unit 9, motor 901 passes through connecting rod 902 and drives driving gear 903 rotation, and then drive two driven gears 906 rotation, drive first screw rod 904 and second screw rod 905 rotation simultaneously, first screw rod 904 and second screw rod 905 drive under the cooperation of gag lever post and remove seat 907 side by side, and then make remove seat 907 drive radiator fan 908 and control the removal when supporting fixed radiator fan 908, thereby can increase the radiating area, improve radiating efficiency, the radiating mode that has solved current group battery commonly used sets up the fin on the protective housing of group battery, however for preventing other debris direct contact batteries such as rainwater, protective housing seals often and sets up, cause inside heat to be difficult to give off fast, it is low to heat dissipation efficiency immediately to heat the fin, still can lead to the battery to send the problem such as scalds for a long time use, the problem of actual radiating effect is poor.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a lithium iron phosphate group battery module of variable current discharge technique, includes lithium iron phosphate group battery module shell (1), its characterized in that: the lithium iron phosphate battery module comprises a lithium iron phosphate battery module shell (1), wherein a plurality of battery monomers (2) which are uniformly distributed are arranged in the lithium iron phosphate battery module shell (1), a heat conduction bottom pad (3) is fixedly arranged on the inner bottom wall of the lithium iron phosphate battery module shell (1), a baffle plate (4) is fixedly connected to the top of the heat conduction bottom pad (3), a spacer (5) is fixedly connected to the top of the heat conduction bottom pad (3), a radiating fin (6) is arranged on the lithium iron phosphate battery module shell (1), a supporting seat (7) is arranged below the lithium iron phosphate battery module shell (1), an adjusting component (8) is arranged on the supporting seat (7), a radiating component (9) is arranged between the adjusting component (8) and the lithium iron phosphate battery module shell (1), an electrode (10) is arranged at the top of the lithium iron phosphate battery module shell (1), a series plate (11) is fixedly connected to the bottom of the electrode (10), and an insulating seat (12) is connected to the top of the inner wall of the lithium iron phosphate battery module shell (1).
The adjusting component (8) comprises a mounting groove (801), an electric telescopic rod (802), a first hinging seat (803), a mounting frame (804), a second hinging seat (805), rotating arms (806), support columns (807) and a guide sliding sleeve (808), wherein the mounting groove (801) is formed in the top of the supporting seat (7), the electric telescopic rods (802) with the number being two are fixedly mounted on the inner walls of the left side and the right side of the mounting groove (801), the first hinging seat (803) is fixedly connected to the free end of the electric telescopic rod (802), the mounting frame (804) is arranged between the adjusting component (8) and the lithium iron phosphate battery pack module shell (1), the second hinging seat (805) with the number being two is fixedly mounted on the front side and the rear side of the bottom of the mounting frame (804), the rotating arms (806) are rotatably connected to the top of the first hinging seat (803), the support columns (807) with the number being two are fixedly connected between the supporting seat (7) and the lithium iron phosphate battery pack module shell (1), the outer surface of the support columns (807) is fixedly connected with the outer surface of the electric telescopic rod (802), the two guide sliding blocks (808) are connected to the outer surfaces of the support columns (807) and the two guide sliding blocks (802) to enable the two guide blocks to move downwards in a telescopic manner through the two telescopic rods or the two guide blocks (803) to move outwards and freely, the first hinging seat (803) moves and drives the two rotating arms (806) to rotate inwards or outwards, so that the mounting frame (804) is driven to move upwards or downwards under the cooperation of the second hinging seat (805);
The heat dissipation assembly (9) comprises a motor (901), a connecting rod (902), a driving gear (903), a first screw (904), a second screw (905), a driven gear (906), a movable seat (907) and a heat dissipation fan (908), wherein the motor (901) is fixedly arranged on the left outer wall of the mounting frame (804), the connecting rod (902) is fixedly connected with the output shaft of the motor (901), the driving gear (903) is fixedly arranged on the outer surface of the connecting rod (902), the first screw (904) is fixedly connected with the right side of the connecting rod (902), the driven gear (906) is fixedly arranged on the outer surface of the second screw (905) in a rotating manner, the movable seat (907) is fixedly connected with the outer surface of the first screw (904) and the outer surface of the second screw (905), the heat dissipation fan (908) is fixedly arranged on the top of the movable seat (907), the motor (901) drives the driving gear (903) to rotate through the connecting rod (902), and then drives the two driven gears (905) to rotate, and simultaneously drives the first screw (905) and the second screw (905) to rotate, the first screw rod (904) and the second screw rod (905) drive the movable seat (907) to move left and right under the cooperation of the limiting rod, so that the movable seat (907) supports and fixes the cooling fan (908) and simultaneously drives the cooling fan (908) to move left and right.
2. The lithium iron phosphate battery module of a variable current discharge technique of claim 1, wherein: the spacer (5) is connected with the inner wall of the lithium iron phosphate battery module shell (1), and the spacer (5) is contacted with the outer surface of the battery monomer (2).
3. The lithium iron phosphate battery module of a variable current discharge technique of claim 1, wherein: the insulating seat (12) is fixedly connected with the series plate (11), the insulating seat (12) is fixedly connected with the electrode (10), and the bottom of the series plate (11) is contacted with the top of the battery cell (2).
4. The lithium iron phosphate battery module of a variable current discharge technique of claim 1, wherein: the inner bottom wall of the mounting groove (801) is provided with two guide grooves, the bottom of the first hinging seat (803) is fixedly connected with a guide block, and the guide block is in sliding connection with the guide grooves.
5. The lithium iron phosphate battery module of a variable current discharge technique of claim 1, wherein: the left side and the right side of the installation frame (804) are fixedly connected with connecting columns, and one ends of the two connecting columns, which are opposite, are respectively and fixedly connected with two guide sliding sleeves (808).
6. The lithium iron phosphate battery module of a variable current discharge technique of claim 1, wherein: the number of the rotating arms (806) is four, and the top of the rotating arms (806) is rotatably connected with the bottom of the second hinging seat (805).
7. The lithium iron phosphate battery module of a variable current discharge technique of claim 1, wherein: the inside of the mounting frame (804) is provided with a mounting cavity, and the driving gear (903) and the driven gear (906) are both positioned in the inside of the mounting cavity.
8. The lithium iron phosphate battery module of claim 7, wherein: the right end of the connecting rod (902) penetrates through the mounting frame (804) and extends to the inside of the mounting cavity, and the connecting rod (902), the first screw (904) and the second screw (905) are rotatably connected with the mounting frame (804) through bearings.
9. The lithium iron phosphate battery module of a variable current discharge technique of claim 1, wherein: the two driven gears (906) are respectively arranged on the front side and the rear side of the driving gear (903) and are symmetrically arranged in the front-rear direction, and the driven gears (906) are meshed with the driving gear (903).
10. The lithium iron phosphate battery module of a variable current discharge technique of claim 1, wherein: limiting rods with three numbers are fixedly connected between the inner walls of the left side and the right side of the mounting frame (804), and the three movable seats (907) are respectively connected with the three limiting rods in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311792389.3A CN117691281B (en) | 2023-12-25 | 2023-12-25 | Lithium iron phosphate battery module of variable current discharge technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311792389.3A CN117691281B (en) | 2023-12-25 | 2023-12-25 | Lithium iron phosphate battery module of variable current discharge technology |
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| CN117691281B true CN117691281B (en) | 2024-05-14 |
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| CN117691281A (en) | 2024-03-12 |
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