CN218997012U - Allocate power module, battery package and electric motor car - Google Patents
Allocate power module, battery package and electric motor car Download PDFInfo
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- CN218997012U CN218997012U CN202223236989.5U CN202223236989U CN218997012U CN 218997012 U CN218997012 U CN 218997012U CN 202223236989 U CN202223236989 U CN 202223236989U CN 218997012 U CN218997012 U CN 218997012U
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- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
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- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- 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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical Kinetics & Catalysis (AREA)
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- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a distribution power supply module, a battery pack and an electric vehicle, wherein the total number of battery cells of the distribution power supply module is P, the number N of battery cells of the distribution power supply module is rho, the density of acid liquor in each cell is rho, the distribution power supply module is used in series with a basic power supply module with the total number W of the battery cells and the density of the acid liquor in each cell as rho, the sum of voltages of the distribution power supply module and the basic power supply module is U, the number M of the battery cells of the basic power supply module is unequal to the number N of the battery cells of the distribution power supply module. The power supply allocation module can prolong the service life of the battery.
Description
Field of the art
The utility model relates to the field of lead-acid storage batteries.
(II) background art
In order to ensure the installation efficiency, for example, a 48V20AH battery pack is formed by connecting 4 batteries of 12V20AH in series, each battery is provided with 6 single cells, and a 60V20AH battery pack is formed by connecting 5 batteries of 12V20AH in series, each battery is provided with 6 single cells, so that the voltage of the lead-acid battery pack is ensured and the corresponding capacity of the battery is obtained in order to match the power of the motor of the existing electric bicycle, the acid liquor density of the battery single cells is continuously improved, the acid liquor density of the lead-acid battery is usually 1.38 or higher, however, the higher acid liquor density can have adverse effect on the service life of the battery, the low acid ratio can obviously improve the service life of the battery, and the reduction of the voltage and the capacity of the battery can be brought by the acid ratio.
(III) summary of the utility model
The utility model discloses a distribution power supply module, wherein the total number of battery cells of the distribution power supply module is P, the number of battery cells N of the battery cells of the distribution power supply module is rho, and the acid liquor density in the cells is rho.
Further, the number X of the single batteries of the basic power supply module is equal to the number M of the single batteries, and U/(MX+P) -0.845<1.38.
Further, the number Y of the single batteries of the power supply module is allocated, each single battery has the same number N of single battery cells, and U/(MX+NY) -0.845<1.38.
Further, the power supply allocation module comprises allocation single cells, the total number of the allocation single cells is Q, p=km+q, and K is an integer greater than or equal to 0.
The power supply module can prolong the service life of the battery.
(IV) description of the drawings
FIG. 1 shows a first embodiment of a lead acid battery of the present utility model;
FIG. 2 shows a second embodiment of a lead acid battery of the present utility model;
FIG. 3 shows a third embodiment of a lead acid battery of the present utility model;
FIG. 4 shows a fourth embodiment of a lead acid battery of the present utility model;
fig. 5 shows a fifth embodiment of the lead acid battery of the utility model.
(fifth) detailed description of the utility model
The utility model will be further described with reference to the following specific examples, but the scope of the utility model is not limited thereto:
the utility model relates to a lead-acid battery pack 1000, which comprises a first power supply module 100 and a second power supply module 200, wherein the first power supply module 100 and the second power supply module 200 are connected in series (not shown in the figure), the voltage of the lead-acid battery pack 1000 is U, the first power supply module 100 comprises single batteries 10, the single batteries 10 are provided with single batteries 1, the total number of single batteries M of the single batteries 10 of the first power supply module 100, the total number of single batteries W of the first power supply module is 6, the second power supply module 200 comprises an allocation single battery 2, one allocation single battery in the figure 1 is one single battery 20, the total number P of single batteries of the second power supply module 200 in the figure 1 is equal to the total number Q of allocation single batteries, the number N of single batteries of the second power supply module is N, the sulfuric acid density in the single batteries of the battery pack 1000 is ρ, the total number X of single batteries of the first power supply module 100 is the total number of single batteries MX of the first power supply module at this time, the single batteries of the first power supply module 100 are connected, the total number of single batteries of the lead-acid module 200 is equal to or more than 1, the allocation single batteries of the single batteries 20 is M, the voltage of the series connection of the second power supply module 200 is smaller than the allocation single batteries 200 is 62, and the allocation voltage of the serial connection of the lead-acid battery pack is 38 is satisfied: U/(MX+Q) -0.845<1.38. The total number Q of the allocated single cells of the second power supply module is (1.38-rho) MX/(rho+0.845) and is rounded by one method. In fig. 1, one unit cell is formed by one unit cell, and a plurality of unit cells can be optionally combined to form one unit cell according to needs, for example, 2 unit cells can be combined to form one unit cell, or more unit cells can be combined to form a plurality of unit cells. In addition, in the lead-acid storage battery pack, any number of the allocated single cells of the second power supply module can be integrally formed with at least part of the single cells of the first power supply module, so that the single cells of the second power supply module form single cells with M+1 or M+2 or more different single cells, at this time, the total number of single cells P=KM+Q of the second power supply module is the number of single cells with Q allocated single cells integrally formed with the single cells of the first power supply module, K is an integer greater than or equal to 0, and the number of single cells N of the single cells of the second power supply module is unequal to the number of single cells M of the single cells of the first power supply module. In the first embodiment of the present utility model shown in fig. 1, the number K of the single cells integrally formed by the unit cells and the first power supply module is 0, as shown in fig. 2, the number of the unit cells Q is 1, the number K of the single cells integrally formed by the unit cells and the first power supply module is 1, u/(w+p) -0.845<1.38, and similarly, U, M, X, Q, K satisfies the following relationship: u/[ M (X+K) +Q ] is-0.845 <1.38, and Q is (1.38- ρ) M (X+K)/(ρ+0.845) rounded, preferably by one method. As shown in fig. 3, the number of the allocated cells Q is 2, the number of the unit cells K formed by integrating the allocated cells and the unit cells of the first power supply module is 2, and similarly, U, M, X, Q, K satisfies the following relationship: u/[ M (X+K) +Q ] is-0.845 <1.38, and Q is (1.38- ρ) M (X+K)/(ρ+0.845) rounded, preferably by one method. As shown in fig. 4, at this time, the number of the allocated cells Q is 2, the number K of the unit cells integrally formed by the 2 allocated cells and the unit cells of the first power supply module is 1, and similarly, U, M, X, Q, K satisfies the following relationship: u/[ M (X+K) +Q ] is-0.845 <1.38, Q is (1.38- ρ) M (X+K)/(ρ+0.845), and is preferably rounded by one method, and under the same conditions, such as battery voltage and acid ratio, the number of the single batteries of the first power supply module in FIG. 4 is 1 more than the number of the single batteries of the first power supply module in FIG. 3. The number of the single batteries of the second power supply module is more than or equal to 1 and less than M. Through the allocation unit cell, under the condition that the voltage of the lead-acid storage battery pack is ensured and the power of the electric vehicle motor is met, the acid ratio can be reduced, the service life of the battery pack is obviously prolonged, the riding experience of a user is not influenced, and different installation modes of the battery pack allocation unit cell can accord with different installation environments and adapt to different application scenes. The battery cell 1 of the first power supply module 100 and the battery cell 2 of the second power supply module 200 of the present utility model are preferably identical, such as identical cell voltages, cell capacities, cell volumes, cell sizes, etc. The number of the allocation cells set in this embodiment is the optimal way of setting the number of allocation cells in the present utility model, and of course, the number of allocation cells may be increased or decreased according to the required voltage of the battery pack matching the motor power. The voltage of the first power supply module is preferably higher than that of the second power supply module, so that standardized mass production of the first power supply module and the second power supply module is facilitated, and the production efficiency and the assembly efficiency are improved. When the total number P of the single cells of the second power supply module is higher than the number M of the single cells of the first power supply module, the single cells are allocated to be the remaining single cells of the second power supply module after kM (K is an integer greater than or equal to 0) single cells are removed, and when the total number P of the single cells of the second power supply module is lower than the number M of the single cells of the first power supply module, the single cells are allocated to be all the single cells of the second power supply module. In addition, the number Y of the single batteries of the second power supply module, if the number of battery cells of each single battery of the second power supply module is equal, p=ny, the number X of the single batteries of the first power supply module, and if each single battery of the first power supply module has the same number M of battery cells, w=mx.
The power supply modules in the battery pack can be combined and matched according to the service life of the battery, for example, when the voltage of the battery pack is determined according to the power requirement of the motor of the electric vehicle, the acid ratio of the battery is determined according to the service life of the battery, the number of the first power supply modules and the number of the single cells are set, the voltage drop is calculated, the voltage of the allocation single cells of the second power supply modules is calculated, and the number of the allocation single cells of the second power supply modules is calculated. The allocation unit cells of the second power supply module can be a single cell, or a plurality of allocation unit cells can be formed into a single cell, or all allocation unit cells of the second power supply module are combined with a single cell of the first power supply module to form a single cell, that is, any number of allocation unit cells of the second power supply module can be combined with corresponding single cells of the first power supply module to form single cells according to requirements, and the number or the installation mode of allocation unit cells of the second power supply module can adapt to different installation environments or application scenes.
Taking the current nominal 48V20AH lead-acid storage battery pack matched electric vehicle motor power 400W as an example: the 48V20AH lead-acid storage battery pack is formed by connecting 4 12V20AH single batteries in series, wherein each single battery has 6 single lattices, and the total number of the single lattices is 24, and the sulfuric acid density in the single lattices, namely the acid ratio, is 1.38g/cm 2 In order to improve the service life of the 48V20AH lead-acid storage battery, referring to FIG. 1, the lead-acid storage battery of the utility model reduces the acid ratio in the original four 12V20AH single batteries to 1.33g/cm 2 Namely, the lead-acid storage battery pack comprises 4 single batteries, each single battery is provided with 6 single lattices, a second power supply module is connected with the first power supply module in series, the total number of the single lattices of the second power supply module is P=KM+Q, K is taken to be 0, the number of the single lattices to be allocated is calculated, namely Q= (1.38-1.33) 6 (4+0)/(1.33+0.845), Q= (1.38-1.33) 6*4/(1.33+0.845) =0.551, the total number of the single lattices of the battery of the second power supply module is P to be 1, at the moment, the number of the single lattices to be allocated can be determined under certain voltage of the battery pack, at the moment, the number of the single lattices to be allocated can independently form one single battery, namely, the number of the single batteries of the second power supply module is 1, in addition, the lead-acid storage battery pack can also be adjusted, and the number of the single lattices can be adjusted, namely, the single lattices of the second power supply module can be shown as the single lattice 2, and each single battery module can be used for supplying power to 3, and each single battery module can be used for supplying power, and the single battery pack is shown in the figure 2, and the single battery pack can be used as the single module is 0 as shown in the figure 2The single battery has 6 single cells, the second power supply module has 1 single battery, and the 1 single battery has 7 single cells. Due to the reduction of the acid ratio, the service life is obviously prolonged, in addition, the voltage (1.33+0.845) of the first power supply module of the lead-acid storage battery pack is 24=52.2V, the voltage of the second power supply module is 1.33+0.845=2.175V, the voltage of the lead-acid storage battery pack is (1.33+0.845) 25= 54.375V, and the voltage value (1.38+0.845) of the lead-acid storage battery pack is slightly higher than the voltage value (1.38+0.845) 24=53.4V when the acid ratio is 1.38, the power of the electric vehicle motor 400W can be matched, and meanwhile, the riding experience of a user is not affected. Meanwhile, different single numbers and single cells of the lead-acid storage battery pack can adapt to different installation environments or application scenes.
Taking the current nominal 60V20AH lead-acid storage battery pack matched electric vehicle motor power of 500W as an example: the 60V20AH lead-acid storage battery pack is formed by connecting 5 12V20AH single batteries in series, 6 single lattices are arranged in each single battery, 30 single lattices are arranged in total, the density of sulfuric acid in each single lattice, namely the acid ratio, is 1.38g/cm < 2 >, in order to improve the service life of the 60V20AH lead-acid storage battery pack, the lead-acid storage battery pack reduces the acid ratio in the original 5 12V20AH single batteries to 1.30g/cm < 2 >, namely the first power supply module of the lead-acid storage battery pack is provided with 5 single batteries, each single battery is provided with 6 single lattices, the second power supply module is connected with the first power supply module in series, the total number of the single lattices of the second power supply module is P=KM+Q, K is 1, the formulated single lattice Q= (1.38-rho) M (X+K)/(rho+0.845) is calculated, namely, q= (1.38-1.30) 6 (4+1)/(1.30+0.845) =1.1, and further, the whole method is 2, the total number of battery cells of the second power supply module is p=8, at this time, the number of allocated cells to be allocated under a certain voltage and a certain acid ratio of the battery pack can be determined, at this time, the allocated cells can independently form one single battery, namely, the number of single batteries of the second power supply module is 1 cell and 2 cells is 2, or the number of single batteries of the second power supply module is 1, in addition, the lead-acid battery pack of the utility model can also adjust the number of the first power supply module and the single cells of the second power supply module, for example, the first power supply module is provided with 4 single batteries, each single battery is provided with 6 single cells, the second power supply module is provided with 1 single battery, and the single battery is provided with 8 single cells, namely, as shown in fig. 5; or the first power supply module has 3 single cells, each single cell has 6 single cells, the second power supply module has 2 single cells, and the 1 single cell has 7 single cells, wherein p=km+q=2×6+2=14. In this case, the service life of the lead-acid battery pack of the present utility model will be significantly improved due to the reduction of the acid ratio, in addition, the voltage (1.30+0.845) of the first power supply module of the lead-acid battery pack of the present utility model is 24= 51.48V, the voltage (1.30+0.845) of the second power supply module is 8=17.16V, or the voltage (1.30+0.845) of the first power supply module is 18=38.61V, the voltage (1.30+0.845) of the second power supply module is 14=30.03V, and the voltage of the battery pack of the present utility model is (1.30+0.845) 32=68.64V, which is slightly higher than the voltage value (1.38+0.845) of the lead-acid battery pack when the acid ratio is 1.38, so that the voltage value of the battery pack of the present utility model is 30=66.75V can be completely matched with the power of the electric vehicle motor 500W and the motor controller. Meanwhile, the riding experience of the user is not affected. Meanwhile, different single numbers and single cells of the lead-acid storage battery pack can adapt to different installation environments or application scenes.
The density of the acid liquor of the lead-acid storage battery pack is preferably lower than 1.33g/cm < 2 >, so that the service life of the battery can be better prolonged, and the utilization rate of active substances can be better improved. When the number of the battery cells of the first power supply module is unequal, for example, the battery cells are in a multiple relationship, for example, if the number of the battery cells of one part of the battery cells is 6 and the number of the battery cells of the other part of the battery cells is 12, the maximum common divisor is 6.
When the number of battery cells of the first power supply module of the lead-acid battery pack is unequal, and the greatest common divisor cannot be obtained, for example, the number of battery cells of each battery cell is 5, 8 and 9 respectively, at this time, the number M of battery cells of the first power supply module is 5 or 8 or 9, the total number W of battery cells of the first power supply module is 22, the number N of battery cells of the second power supply module of the battery pack is 3, the number N of battery cells of the second power supply module is unequal to the number M of battery cells of the first power supply module, at this time, the total number P of battery cells of the second power supply module is 3, U/(W+P) -0.845<1.38 are preferably smaller than 1.33, when the manufacturer needs to configure the first power supply module and the second power supply module of the battery pack, the total number W of battery cells of the battery pack is 22, the battery cells of the battery pack is 3, the battery cells of the battery pack is required to be 25, the battery cells of the battery pack are required to be matched, and the battery cells of the battery cell pack is 25, and the battery cells of the battery pack is required to be matched with the battery cell of the battery cell pack is 25, and the battery cell of the battery cell pack is required to be matched with the battery cell of the battery cell pack is 25; or the first power supply module of the battery pack comprises three single batteries, the number of battery cells of each single battery is 5, 2 and 9, the second power supply module of the battery pack comprises one single battery, the number of battery cells is 9, and at the moment, the number N of the battery cells of the second power supply module is 9 and the number M of the battery cells of the first power supply module is 5 or 2. The number of the battery cells N of the single battery of the second power supply module is not equal to the number of the battery cells M of the single battery of the first power supply module, and the number of the battery cells M of any single battery of the second power supply module is not equal to the number of the battery cells M of any single battery of the first power supply module. The number of the battery cells of the battery pack can be configured according to different installation environments. As described above, the voltage of the first power supply module is preferably higher than the voltage of the second power supply module.
The utility model also discloses a battery pack, and the lead-acid battery pack is arranged in the battery pack. The utility model also discloses an electric vehicle, and the electric vehicle is provided with the lead-acid battery pack or the battery pack.
The utility model also discloses a distribution power supply module which comprises distribution single cells, wherein the total number of the distribution single cells is Q, the acid liquor density in the single cells is rho, rho is less than 1.38g/cm < 2 >, and is preferably less than 1.33g/cm < 2 >, the distribution power supply module is used for being connected in series with a basic power supply module with M battery single cells of a single battery and rho in the single cells, and the Q is more than or equal to 1 and less than M. The total number of battery cells of the allocated power supply module is P, P=KM+Q, K is an integer greater than or equal to 0, the number of the battery cells of the basic power supply module is X, the value of Q is preferably (1.38- ρ) M (X+K)/(ρ 0.845), and the whole is preferably one-bit. The acid liquor density in the unit cell is rho=U/[ M (X+K) +Q ] to 0.845, the total number of battery unit cells W of the basic power supply module is equal to the sum of voltages of the power supply module and the basic power supply module, and U/(W+P) -0.845<1.38. The allocated power supply module and the basic power supply module are preferably lead-acid power supply modules, and the allocated power supply module can be used in series with the basic power supply module, so that the requirements of electric vehicles, especially electric bicycle motors, battery life, different installation environments and different application scenes can be met, and the aims can be achieved under the condition that the structure of the existing basic power supply module is not changed. In addition, the voltage of the allocated power supply module is preferably smaller than that of the basic power supply module, so that standardized batch production of the allocated power supply module and the basic power supply module is facilitated, and the production efficiency and the assembly efficiency are improved. The power supply allocation module used in series with the number M of the battery cells of the single battery of the basic power supply module is 6 can be 1 power supply allocation unit cell, the total number of the battery cells of the power supply allocation module is 1, at the moment, K=0, the total number of the battery cells of the power supply allocation module is 7, namely in the form of 1X7, at the moment, k=1, and the number N of the battery cells of the power supply allocation module is 7; the number of the single cells of the single cell of the power supply module is 8, namely 1X8, the number of the single cells of the single cell of the power supply module is 8, the single cells of the single cell of the power supply module is 1X7, the number of the single cells of the single cell of the power supply module is 7 and 1, and the number of the single cells of the single cell of the power supply module is 14, namely two single cells of 1X7, the number of the single cells of the single cell of the power supply module is 7, and the number of the single cells of the single cell of the power supply module is 7, wherein k=1. The power distribution and supply module is preferably a power distribution and supply module. In addition, the density of the acid solution of the power supply module is preferably lower than 1.33g/cm < 2 >, so that the service life of the battery can be better prolonged, and the utilization rate of active substances can be better improved.
The power distribution and supply module of the utility model can also be that the total number of battery cells of the power distribution and supply module is P, the number of battery cells N of the single batteries of the power distribution and supply module, the acid liquor density in the single cells is rho, the power distribution and supply module is used for being connected with a basic power distribution and supply module with the total number of battery cells W and the acid liquor density in the single cells as rho in series, the voltage of the power distribution and supply module and the basic power distribution and supply module is U, the number of battery cells M of the single batteries of the basic power distribution and supply module is M, the number of battery cells M of the single batteries of the basic power distribution and supply module is not equal to the number of battery cells N of the single batteries of the power distribution and supply module, and U/(W+P) -0.845<1.38 is satisfied. The number X of the single batteries of the basic power supply module, if each single battery has the same number M of single battery cells, U/(MX+P) -0.845<1.38; and (3) allocating the number Y of the single batteries of the power supply module, wherein if each single battery has the same number N of single battery cells, U/(MX+NY) -0.845<1.38.
The utility model also discloses a battery pack, and the power distribution and supply module is arranged in the battery pack.
The utility model also discloses an electric vehicle provided with the power distribution and supply module and the battery pack.
The lead-acid battery pack and the power supply module are designed, the lead-acid battery pack and the power supply module are convenient to transport, different battery combinations can be configured according to the power of the motor, even different voltages can be selectively configured under the same power, so that different riding requirements are met, and the requirements of different installation environments can be met. In addition, the lead-acid storage battery pack can be used for driving a long distance and with more sufficient power under the same condition, and meanwhile, the installation efficiency of the battery is not affected. The power supply module and the lead-acid battery pack are preferably power batteries, and are especially used for electric bicycles.
The above-described embodiment is only a preferred embodiment of the present utility model, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (8)
1. The power distribution and supply module is characterized in that the power distribution and supply module is used in series with a basic power supply module with total number W of battery cells and acid liquor density in the cells being rho, the sum of voltages of the power distribution and supply module and the basic power supply module is U, the number M of battery cells of the basic power supply module is equal to the number N of battery cells of the single battery of the basic power supply module.
2. A hybrid power module as claimed in claim 1, characterized in that U/(w+p) -0.845<1.38 is satisfied.
3. A hybrid power module as claimed in claim 2, wherein the number X of cells of the base power module, each cell having the same number M of cells, and U/(mx+p) -0.845<1.38.
4. A distributed power module according to claim 3, wherein the number Y of unit cells of the distributed power module is the same as the number N of unit cells of each unit cell, and U/(mx+ny) -0.845<1.38.
5. The power distribution module of claim 4, wherein the power distribution module comprises distribution cells, the total number of the distribution cells is Q, p=km+q, and K is an integer greater than or equal to 0.
6. A battery pack, wherein a power distribution module according to any one of claims 1 to 5 is mounted in the battery pack.
7. An electric vehicle, characterized in that it is equipped with a deployment power module according to any one of claims 1-5.
8. An electric vehicle having a battery pack according to claim 6 mounted thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223236989.5U CN218997012U (en) | 2022-03-22 | 2022-07-21 | Allocate power module, battery package and electric motor car |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2022/082261 WO2023178513A1 (en) | 2022-03-22 | 2022-03-22 | Lead-acid battery pack |
| CN202223236989.5U CN218997012U (en) | 2022-03-22 | 2022-07-21 | Allocate power module, battery package and electric motor car |
| CN202221907522.6U CN218472218U (en) | 2022-03-22 | 2022-07-21 | Lead-acid battery pack, battery pack and electric vehicle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202221907522.6U Division CN218472218U (en) | 2022-03-22 | 2022-07-21 | Lead-acid battery pack, battery pack and electric vehicle |
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| CN218997012U true CN218997012U (en) | 2023-05-09 |
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| CN202223236989.5U Active CN218997012U (en) | 2022-03-22 | 2022-07-21 | Allocate power module, battery package and electric motor car |
| CN202210859651.0A Pending CN115296362A (en) | 2022-03-22 | 2022-07-21 | Lead-acid battery pack |
| CN202221907522.6U Active CN218472218U (en) | 2022-03-22 | 2022-07-21 | Lead-acid battery pack, battery pack and electric vehicle |
| CN202221883746.8U Active CN218975534U (en) | 2022-03-22 | 2022-07-21 | Lead-acid battery pack |
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| CN202210859651.0A Pending CN115296362A (en) | 2022-03-22 | 2022-07-21 | Lead-acid battery pack |
| CN202221907522.6U Active CN218472218U (en) | 2022-03-22 | 2022-07-21 | Lead-acid battery pack, battery pack and electric vehicle |
| CN202221883746.8U Active CN218975534U (en) | 2022-03-22 | 2022-07-21 | Lead-acid battery pack |
Country Status (2)
| Country | Link |
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| WO (1) | WO2023178513A1 (en) |
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| CN114834571B (en) * | 2022-03-22 | 2024-04-12 | 浙江铅锂智行科技有限公司 | Lead-acid battery pack |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090317696A1 (en) * | 2008-06-19 | 2009-12-24 | Chih-Peng Chang | Compound battery device having lithium battery and lead-acid battery |
| CN102651491B (en) * | 2011-02-25 | 2015-03-18 | 深圳市雄韬电源科技股份有限公司 | Composite battery |
| CN102456931B (en) * | 2011-09-05 | 2014-03-12 | 凹凸电子（武汉）有限公司 | Lead-acid battery matching method and system |
| CN105438096A (en) * | 2014-09-18 | 2016-03-30 | 柯国平 | Vehicle starting power source |
| CN204885332U (en) * | 2015-09-02 | 2015-12-16 | 司二克 | Lead acid battery for electric motor car |
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2022
- 2022-03-22 WO PCT/CN2022/082261 patent/WO2023178513A1/en unknown
- 2022-07-21 CN CN202223236989.5U patent/CN218997012U/en active Active
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| Publication number | Publication date |
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| CN218975534U (en) | 2023-05-05 |
| CN218472218U (en) | 2023-02-10 |
| WO2023178513A1 (en) | 2023-09-28 |
| CN115296362A (en) | 2022-11-04 |
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