CN214337618U - Double-battery power supply system - Google Patents
Double-battery power supply system Download PDFInfo
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- CN214337618U CN214337618U CN202120362613.5U CN202120362613U CN214337618U CN 214337618 U CN214337618 U CN 214337618U CN 202120362613 U CN202120362613 U CN 202120362613U CN 214337618 U CN214337618 U CN 214337618U
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- battery
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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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Abstract
The utility model discloses a double cell electrical power generating system. Belongs to the technical field of lithium battery systems. The system mainly solves the problems that an existing two independent starting battery pack systems and a parking air-conditioning battery pack system are large in installation space, need two independent battery management systems BMS and are inconvenient to connect. It is mainly characterized in that: the parking air-conditioning battery pack system comprises a starting battery pack system, a parking air-conditioning battery pack system and a battery management system BMS; the starting battery pack system and the parking air-conditioning battery pack system are electrically connected with the same battery management system BMS. The utility model has the characteristics of reduce one set of battery management system BMS, start and parking air conditioner power supply reliable, occupy installation space little and connect convenient, start-up battery and parking air conditioner battery on the mainly used car.
Description
Technical Field
The utility model belongs to the technical field of lithium battery system, concretely relates to bi-cell electrical power generating system with bi-cell structure for the air conditioner power supply when automobile staring, parking.
Background
The environment is protected, the energy is saved, the emission is reduced, and new energy automobiles are developed. The development of new energy automobiles is the strategic development direction of China.
Two modes are currently pursued by the industry: the first mode is two independent battery pack systems, and the second mode is one parking air-conditioning battery pack system. The first mode is as follows: the two independent battery pack systems are a starting battery pack system and a parking air-conditioning battery pack system, the starting battery is mainly used for engine ignition, and the parking air-conditioning battery is mainly used for supplying power to an air-conditioning load. And a second mode: one parking air conditioner battery scheme is used for starting the automobile and supplying power to loads such as an air conditioner and the like. The mode I, two independent lithium battery schemes, two fixed positions need to be reserved for the whole vehicle, the installation is the positive and negative poles of two lithium batteries need to be connected, two sets of independent battery management systems BMS are needed in the two lithium batteries to be used for protecting the normal range of the lithium batteries to work, and the situations of overcharge, overdischarge, over-temperature, overcurrent and the like are prevented. And in the second mode, according to the scheme of parking the air conditioner battery, the automobile starting function needs large current for discharging, the battery needs to use a power type lithium battery, but the air conditioner can meet the requirement only by using an energy type lithium battery during working, and the power type lithium battery is selected to be used in the place where the energy type lithium battery meets the requirement, so that certain waste is caused.
Disclosure of Invention
The utility model aims at overcoming the above-mentioned not enough of current battery technique, and provide a double cell structure, inside divide into start-up battery and parking air conditioner battery, to start-up battery and parking air conditioner battery set together, reduce battery management system BMS's use to make fixed simplification, improve production efficiency, material saving, reduction product cost.
The technical solution of the utility model is that: the utility model provides a double cell electrical power generating system, includes start battery system, parking air conditioner battery system and battery management system BMS, its characterized in that: the starting battery pack system and the parking air-conditioning battery pack system are electrically connected with the battery management system BMS.
The utility model discloses a technical solution in start battery system, parking air conditioner battery system and battery management system BMS adorn in same box.
In the technical solution of the utility model, the box body is respectively provided with a positive connecting end and a negative connecting end; and the positive terminal and the negative terminal of the starting battery pack system and the parking air-conditioning battery pack system are respectively connected with the positive connecting end and the negative connecting end.
The starting battery pack system in the technical solution of the utility model comprises a negative pole terminal, a first current sensor, a starting battery pack, a first control switch, a fuse and a positive pole terminal, which are connected in series in sequence by conductors; the parking air conditioner battery pack system comprises a negative electrode end, a second current sensor, a parking air conditioner battery module, a second control switch, a fuse and a positive electrode end, and is formed by sequentially connecting conductors in series; the negative pole end is connected with the first current sensor and the second current sensor respectively, the positive pole end is connected with one end of the fuse, and the other end of the fuse is connected with the first control switch and the second control switch respectively.
The first current sensor in the technical solution of the utility model is a first hall sensor, and the second current sensor is a second hall sensor; the first control switch is a first MOS switch, and the second control switch is a second MOS switch
The first current sensor in the technical solution of the present invention is a first shunt, and the second current sensor is a second shunt; the first control switch is a first relay and the second control switch is a second relay. The first current sensor and the second current sensor can also be other current acquisition units. The first control switch and the second control switch can also be other control switch pieces.
The utility model discloses a technical solution in battery management system BMS be connected with the current detection end of first current sensor and second current sensor, first control switch and second control switch's on-off control end and the voltage and the temperature detection end of starting battery module and parking air conditioner battery module respectively.
The utility model discloses a technical solution in the battery monomer that adopts in the start battery group system be power type battery monomer.
The utility model discloses an among the technical solution battery monomer that adopts in the parking air conditioner group battery system be energy type battery monomer.
The utility model discloses an among the technical solution battery monomer that adopts in starting battery pack system and the parking air conditioner battery pack system is the lithium cell of soft package, aluminum hull, cylinder structure.
The utility model discloses owing to adopt the bi-cell electrical power generating system who constitutes by start-up group battery system, parking air conditioner battery system and battery management system BMS, wherein, start-up group battery system and parking air conditioner battery system and be connected with same battery management system BMS electricity, form the battery system that has start-up function and parking air conditioner function. The starting loop of the system is mainly used for starting and energy recovery of a whole vehicle, the battery uses a power type battery monomer which is mainly used for instantaneous high-power charging and discharging during starting and energy recovery, and the battery monomer has a low-temperature chargeable function and does not need to be provided with a heating system. The parking air conditioner battery pack system loop of the system is mainly used for discharging low-voltage loads such as an air conditioner on a vehicle and the like, and an energy type battery monomer is used for a battery, so that the cost is reduced, and the service life of the battery is prolonged.
The utility model has the characteristics of reduce one set of battery management system BMS, start and parking air conditioner power supply reliable, occupy installation space little and connect convenient, start-up battery and parking air conditioner battery on the mainly used car.
Drawings
Fig. 1 is a circuit diagram of embodiment 1 of the present invention.
Fig. 2 is a circuit diagram of embodiment 2 of the present invention.
Reference numerals: 1. starting the battery module; 2. a parking air conditioner battery module; 3-1. a first hall sensor; 3-2. a second Hall sensor; 4-1. a first MOS switch; 4-2. a second MOS switch; 5. a fuse; 6. a negative terminal; 7. a positive terminal; 8. a battery management system BMS; 9-1. a first relay; 9-2. a second relay; 10-1. a first splitter; 10-2, a second shunt.
Detailed Description
The technical solutions in the embodiments of the present invention will be fully described below, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the present invention relates to embodiment 1 of a dual battery system, which includes a start battery system, a parking air-conditioning battery system, a battery management system BMS, and a box. The starting battery pack system and the parking air-conditioning battery pack system are electrically connected with the same battery management system BMS and are arranged in the same box body.
The starting battery pack system comprises a negative electrode end 6, a first Hall sensor 3-1, a starting battery module 1, a first MOS switch 4-1, a fuse 5 and a positive electrode end 7, and is formed by sequentially connecting conductors in series and used for starting or energy recovery of the whole vehicle. The parking air-conditioning battery pack system comprises a negative electrode end 6, a second Hall sensor 3-2, a parking air-conditioning battery module 2, a second MOS switch 4-2, a fuse 5 and a positive electrode end 7, is formed by sequentially connecting conductors in series and is used for supplying power to non-engine loads on the whole vehicle. 35mm for starting battery series connection wiring harness225mm for parking air conditioner battery series connection wiring harness2To reduce the cost. The negative electrode end 6 is respectively connected with the first Hall sensor 3-1 and the second Hall sensor 3-2, the positive electrode end 7 is connected with one end of the fuse 5, and the other end of the fuse 5 is respectively connected with the first MOS switch 4-1 and the second MOS switch 4-2. Make itThe same fuse 5 is used mainly for overcurrent and short-circuit protection.
The starting battery module 1 includes: the power type battery comprises a power type battery monomer, a module structural member, a connecting copper bar and a voltage and temperature acquisition wire harness. Parking air conditioner battery module 2 contains: the energy type battery comprises energy type battery monomers, a module structural member, a connecting copper bar and a voltage and temperature acquisition wire harness. Battery management system BMS 8: the parking air conditioner battery module is composed of a master control unit, a slave control unit and related wiring harnesses, and is respectively connected with current detection ends of a first Hall sensor 3-1 and a second Hall sensor 3-2, switch control ends of a first MOS switch 4-1 and a second MOS switch 4-2 and voltage and temperature acquisition wiring harnesses of a starting battery module 1 and a parking air conditioner battery module 2.
The starting battery module uses a power type battery monomer, and the parking air conditioner battery module uses an energy type battery monomer. The starting battery module and the parking air conditioner battery module use 8 strings of lithium iron battery monomer series connection mode for a 24V system, and certainly, 4 strings of lithium iron battery monomer series connection mode for a 12V system can also be used. The single battery that adopts among start battery module and the parking air conditioner battery module is soft packet of, the lithium cell of aluminum hull, cylinder structure.
The battery management system BMS8 monitors and protects the lithium batteries in the starting battery module 1 and the parking air-conditioning battery module 2, the battery monomer voltage of the starting battery module 1 and the parking air-conditioning battery module 2 is monitored, the temperature, the total voltage, the charging and discharging current and the like, the control switch 4 is closed and opened, the lithium batteries in the starting battery module 1 and the parking air-conditioning battery module 2 are abnormally protected and have an alarm function, the lithium batteries are protected to work in the normal voltage, the temperature and the current range, the safe operation of the lithium batteries is ensured, and the service life of the lithium batteries is prolonged.
The box body is respectively provided with an anode connecting end and a cathode connecting end, and a pole column mode or a connector mode is used. The positive terminal 7 and the negative terminal 6 of the starting battery pack system and the parking air-conditioning battery pack system are respectively connected with the positive connecting end and the negative connecting end.
The positive connecting end and the negative connecting end of the double-battery power supply system are connected to a load part of a whole vehicle, the starting battery pack system and the parking air-conditioning battery pack system can work independently or simultaneously, and the working state is divided into a whole vehicle engine working state and a whole vehicle engine stopping state. When the engine of the whole vehicle is in a working state, the generator of the whole vehicle charges the starting battery and the parking air conditioner battery simultaneously. When the engine of the whole vehicle stops, the generator of the whole vehicle does not work, at the moment, if the electric quantity of the starting battery is higher than a certain value, the circuit of the starting battery and the parking air conditioner battery is closed, if the electric quantity of the starting battery is lower than a certain value, the starting battery is in a non-working state, only the parking air conditioner battery is in a working state, the situation that the electric quantity of the starting battery is too low, and the engine is not easy to start when the vehicle is driven again is avoided. When the whole vehicle engine is in a stop state, if the voltage of the starting battery is lower than a certain value, the starting battery disconnects the switch of the loop, so that the starting battery is in a non-working state, only the parking air conditioner battery is in a working state, the situation that the electric quantity of the starting battery is too low is prevented, and the engine is not easy to start when the vehicle is driven again. Compared with the traditional double-battery scheme, the traditional double-battery scheme uses two independent starting batteries and a parking air-conditioning battery pack system, and the scheme uses the starting and parking air-conditioning batteries which are integrated together, so that the installation space, the operation process and the installation material are saved, one battery management system BMS master control system is reduced, the cost is reduced, the production efficiency is improved, and the failure rate is reduced. Compared with the traditional single battery scheme, the traditional single battery uses a power type single battery scheme to meet the requirement of low-temperature high-rate starting, the scheme uses two types of power type and energy type single batteries which are respectively designed, the power type single battery is used for high-rate discharging and energy recovery when an engine is started, and the energy type single battery is used for power supply of low-voltage loads such as a parking air conditioner and the like, so that the cost of the single battery is reduced, and the service life of the battery is prolonged.
As shown in fig. 2, an embodiment 2 of the dual battery system of the present invention is the same as that of embodiment 1 except that a first shunt 10-1, a second shunt 10-2, a first relay 9-1, and a second relay 9-2 are used. When a load is connected, the starting battery and the parking air conditioner battery are both in working states;
in embodiment 2, the first shunt 10-1 replaces the first hall sensor 3-1 in embodiment 1, the second shunt 10-2 replaces the second hall sensor 3-2 in embodiment 1, the first relay 9-1 replaces the first MOS switch 4-1 in embodiment 1, and the second relay 9-2 replaces the second MOS switch 4-2 in embodiment 1.
To sum up, the utility model relates to a double cell system is integrated start battery module, parking air conditioner battery module, current acquisition unit, switch, fuse, battery management system BMS battery system in an organic whole.
Claims (10)
1. The utility model provides a double cell electrical power generating system, includes start battery system, parking air conditioner battery system and battery management system BMS (8), its characterized in that: the starting battery pack system and the parking air-conditioning battery pack system are electrically connected with a battery management system BMS (8).
2. The dual battery power supply system of claim 1, wherein: the starting battery pack system, the parking air-conditioning battery pack system and the battery management system BMS (8) are arranged in the same box body.
3. A dual battery power supply system as claimed in claim 2, wherein: the box body is respectively provided with a positive connecting end and a negative connecting end; and the positive terminal (7) and the negative terminal (6) of the starting battery pack system and the parking air-conditioning battery pack system are respectively connected with the positive connecting end and the negative connecting end.
4. A dual battery power supply system as claimed in claim 1, 2 or 3, wherein: the starting battery pack system comprises a negative electrode end (6), a first current sensor, a starting battery pack (1), a first control switch, a fuse (5) and a positive electrode end (7), and is formed by sequentially connecting conductors in series; the parking air-conditioning battery pack system comprises a negative electrode end (6), a second current sensor, a parking air-conditioning battery module (2), a second control switch, a fuse (5) and a positive electrode end (7), and the parking air-conditioning battery pack system is formed by sequentially connecting conductors in series; the negative pole end (6) is connected with the first current sensor and the second current sensor respectively, the positive pole end (7) is connected with one end of the fuse (5), and the other end of the fuse (5) is connected with the first control switch and the second control switch respectively.
5. The dual battery power supply system of claim 4, wherein: the first current sensor is a first Hall sensor (3-1), and the second current sensor is a second Hall sensor (3-2); the first control switch is a first MOS switch (4-1) and the second control switch is a second MOS switch (4-2).
6. The dual battery power supply system of claim 4, wherein: the first current sensor is a first shunt (10-1), and the second current sensor is a second shunt (10-2); the first control switch is a first relay (9-1) and the second control switch is a second relay (9-2).
7. The dual battery power supply system according to claim 5 or 6, wherein: and the battery management system BMS (8) is respectively connected with the current detection ends of the first current sensor and the second current sensor, the switch control ends of the first control switch and the second control switch, and the voltage and temperature detection ends of the starting battery module (1) and the parking air-conditioning battery module (2).
8. A dual battery power supply system according to any one of claims 1-3, 5, 6, wherein: the battery monomer adopted in the starting battery pack system is a power type battery monomer.
9. A dual battery power supply system according to any one of claims 1-3, 5, 6, wherein: the battery monomer that adopts in the parking air conditioner group battery system be energy type battery monomer.
10. A dual battery power supply system according to any one of claims 1-3, 5, 6, wherein: the battery monomer adopted in the starting battery pack system and the parking air-conditioning battery pack system is a lithium battery with a soft package, an aluminum shell and a cylindrical structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120362613.5U CN214337618U (en) | 2021-02-08 | 2021-02-08 | Double-battery power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120362613.5U CN214337618U (en) | 2021-02-08 | 2021-02-08 | Double-battery power supply system |
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| CN214337618U true CN214337618U (en) | 2021-10-01 |
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| CN202120362613.5U Active CN214337618U (en) | 2021-02-08 | 2021-02-08 | Double-battery power supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595450A (en) * | 2023-11-30 | 2024-02-23 | 中汇丰(北京)科技有限公司 | Dual-battery combined charging and discharging device and application method thereof |
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2021
- 2021-02-08 CN CN202120362613.5U patent/CN214337618U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595450A (en) * | 2023-11-30 | 2024-02-23 | 中汇丰(北京)科技有限公司 | Dual-battery combined charging and discharging device and application method thereof |
| CN117595450B (en) * | 2023-11-30 | 2024-05-24 | 中汇丰(北京)科技有限公司 | Dual-battery combined charging and discharging device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211208 Address after: 441000 No.18 Wuxi Road, high tech Zone, Xiangyang City, Hubei Province Patentee after: CAMEL GROUP NEW ENERGY CELL Co.,Ltd. Address before: Floor g6-1001, Wuhan New Energy Research Institute building, 999 Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee before: Camel Group Wuhan New Energy Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |