CN218586067U - Integrated redundancy battery system - Google Patents
Integrated redundancy battery system Download PDFInfo
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- CN218586067U CN218586067U CN202222972872.7U CN202222972872U CN218586067U CN 218586067 U CN218586067 U CN 218586067U CN 202222972872 U CN202222972872 U CN 202222972872U CN 218586067 U CN218586067 U CN 218586067U
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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 an integrated redundancy battery system, which comprises at least two groups of battery packs; the battery pack comprises a high-voltage box, a plurality of battery modules and a battery management unit; the high-voltage box and the battery management unit are both connected with the battery module; a battery control unit; the high-voltage box and the battery management unit are both connected with a battery control unit; the battery control unit is connected with the communication interface; a charging input interface; the high-voltage boxes are connected with the charging input interface; the charging input interface is used for charging the battery pack; a plurality of groups of power supply output interfaces; the power supply output interface is connected with the high-voltage box; and the power supply output interface is externally connected with power equipment. The utility model discloses a battery control unit realizes managing a plurality of battery packages, the weight of the battery system that has significantly reduced has reduced the quantity of charging input interface and communication interface among the battery system simultaneously for the wiring is more simple and succinct.
Description
Technical Field
The utility model relates to a battery technology field especially relates to an integral type redundancy battery system.
Background
For a large-scale electric aircraft, an electric aircraft battery system is an important part for guaranteeing flight safety, and once the power supply of the battery system is in a problem, the power of the aircraft is seriously disabled and the aircraft is in a danger of crash. In order to solve the problem that the battery in the aircraft can still fly, a plurality of power battery packs can be arranged in the aircraft, and one power battery pack supplies power for one power electric equipment. Although the scheme is simple in design and easy to realize, the whole battery system is provided with a plurality of battery boxes, the weight ratio capacity density and the volume ratio energy density are low, wiring is complex, a plurality of communication interfaces and charging input interfaces are arranged, the size and the weight are large, and the energy consumption of the aircraft battery is accelerated. Therefore, it is desirable to provide a battery system that solves the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's not enough, the utility model provides an integral type redundancy battery system, it can realize controlling and managing a plurality of battery packages through a battery control unit, promotes battery system's weight ratio ability density and volumetric ratio energy density, has guaranteed aircraft battery system reliability, reduces the weight of battery system box and the quantity of charging input interface and communication interface simultaneously for battery system wiring is more succinct.
The utility model discloses the first aspect provides an integral type redundancy battery system, it includes: at least two groups of battery packs; the battery pack comprises a high-voltage box, a plurality of battery modules and a battery management unit; the high-voltage box and the battery management unit are both connected with the battery module;
a battery control unit; the high-voltage box and the battery management unit are both connected with a battery control unit; the battery control unit is connected with the communication interface;
a charging input interface; the high-voltage boxes are connected with the charging input interface; the charging input interface is used for charging the battery pack;
a plurality of groups of power supply output interfaces; the power supply output interface is connected with the high-voltage box; and the power supply output interface is externally connected with power equipment.
In the first aspect of the present invention, as a preferred embodiment, the high voltage box is connected to the battery control unit through a control signal line; the battery management unit is connected with the battery control unit through an internal bus.
In the first aspect of the present invention, as a preferred embodiment, the number of the battery modules is equal to the number of the battery management units.
In the first aspect of the present invention, as a preferred embodiment, the plurality of battery modules are connected to each other with a positive electrode tab and a negative electrode tab.
In the first aspect of the present invention, as a preferred embodiment, the integrated redundant battery system further includes a battery system box; the battery packs are all arranged in the battery system box body; the communication interface and the charging input interface are both arranged on the outer side wall of the battery system box body.
In the first aspect of the present invention, as a preferred embodiment, the battery pack is a set of the battery pack corresponding to a power device.
In the first aspect of the present invention, as a preferred embodiment, the battery control unit further includes an alarm unit; the alarm unit is connected to the battery control unit; the alarm unit is used for giving an alarm when the battery control unit receives abnormal battery pack state data.
In the first aspect of the present invention, as a preferred embodiment, the battery control unit further includes a protection unit, and the protection unit includes a fuse and a relay; and the relay is connected with the battery control unit and used for cutting off the circuit after receiving the alarm signal.
In the first aspect of the present invention, as a preferred embodiment, the integrated redundant battery system further includes a heat dissipation device, and the heat dissipation device is installed in the battery system box; the heat dissipation device is connected with the battery control unit.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides an integral type redundancy battery system, it can realize controlling and managing a plurality of battery packages through a battery control unit, promotes battery system's weight ratio ability density and volumetric ratio energy density, has guaranteed aircraft battery system reliability, reduces the weight of battery system box and the quantity of charging input interface and communication interface simultaneously for battery system wiring is more succinct.
Drawings
Fig. 1 is a system block diagram of an integrated redundancy battery system according to the present invention;
fig. 2 is a connection schematic diagram of the integrated redundancy battery system of the present invention.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings and the detailed description thereof, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of embodiments are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.
In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus:
example one
As shown in fig. 1, the utility model provides an integral type redundancy battery system, it includes:
at least two groups of battery packs; the battery pack comprises a high-voltage box, a plurality of battery modules and a battery management unit; the high-voltage box and the battery management unit are both connected with the battery module;
a battery control unit; the high-voltage box and the battery management unit are both connected with a battery control unit; the battery control unit is connected with the communication interface;
a charging input interface; the high-voltage boxes are connected with the charging input interface; the charging input interface is used for charging the battery pack;
a plurality of groups of power supply output interfaces; the power supply output interface is connected with the high-voltage box; and the power supply output interface is externally connected with power equipment.
The Battery Management System BMS (Battery Management System) includes a Battery control unit and a Battery Management unit, which is a System for managing a Battery, and can realize intelligent Management and maintenance of each Battery unit, prevent overcharge and overdischarge of the Battery, prolong the service life of the Battery, and monitor the state of the Battery.
The Battery Control Unit, i.e. BCU (Battery Control Unit), is an electronic Control Unit that controls or manages the electrical or thermal performance of the Battery system and can perform information interaction with other Control units.
The battery Management Unit, namely a BMU (Basic Management Unit), is an electronic device capable of monitoring and managing a storage battery, and realizes protection of the battery and improvement of the overall performance Management system of the battery by collecting and calculating parameters such as voltage, current, temperature and SOC, and further controlling the charging and discharging process of the current.
A high voltage distribution box (PDU), which is a high voltage power distribution unit in a battery system, distributes high voltage power to each power device through the high voltage distribution box. The high-voltage distribution box is electrically connected with the high-voltage components through the busbar and the wire harness, provides functions of charge and discharge control, high-voltage component electrifying control, circuit overload short-circuit protection, high-voltage sampling, low-voltage control and the like for a high-voltage system of the new energy automobile, and protects and monitors the operation of the high-voltage system.
In the prior art, a BCU and a BMU are generally configured for one power battery pack, and the design method is to configure a plurality of battery boxes, so that the weight and the volume of the whole system are increased, the total weight of an aircraft is increased, the consumption of batteries is accelerated, and the weight-specific capacity density and the volume-specific energy density are both lower.
The utility model provides an integral type redundancy battery system has a plurality of battery packages, and including a plurality of battery modules in every battery package, every battery module disposes a battery management unit, and all battery management units in a plurality of battery packages are through internal bus with battery information transmission to a battery control unit to reduce redundancy battery system interior battery control unit's quantity, reduced battery system's weight.
Furthermore, the utility model provides an integral type redundancy battery system is provided with a battery system box, all install all battery packages in the battery system box for whole battery system is compacter, has promoted gravimetric ratio energy density and volumetric ratio energy density. And simultaneously the utility model discloses only need set up a input interface that charges, can control through battery control unit and charge to a plurality of battery packages, reduced the quantity of the input interface that charges for battery system's wiring is more succinct.
Preferably, the high voltage box is connected with the battery control unit through a control signal line; the battery management unit is connected with the battery control unit through an internal bus. The internal bus used in this embodiment is a CAN bus. The CAN bus is the bus standard for communication between the current electric control units, and almost all battery manufacturers select to use the CAN bus for communication. Nowadays, in order to reduce the data load rate on the battery bus, carry more data volume and greater communication rate, the CANFD bus is gradually becoming the communication core technology. The power battery is used as one of the core components of the new energy source and is also communicated through the CAN bus.
Preferably, the number of the battery modules is identical to the number of the battery management units. The battery management unit collects and manages voltage, current and temperature information of the single battery module and uploads the information to the BCU, and the single batteries in the battery module are managed, so that the balancing function of the single batteries is realized.
Preferably, the positive electrode connectors of the plurality of battery modules are connected with the negative electrode connectors, specifically, the battery modules are connected end to end, that is, the positive electrode of the first battery module is connected with the negative electrode of the second battery module, and the positive electrode of the second battery module is connected with the negative electrode of the third battery module in this order; the current of the battery modules connected in series is equal everywhere: io = Ia = Ib = Ic; the voltage is the sum of the terminal voltages of the battery modules: uo = Ua + Ub + Uc. The basic requirements when the battery modules are used in series are as follows: the voltages are consistent, the internal resistance difference is not more than 5 milliohms, the capacity difference is not more than 10 milliamperes, and the cleanness of the battery module connection points is kept, each connection point has a certain resistance, if the connection points are not clean or the connection points are increased, the internal resistance is increased, and the performance of the whole battery module is affected.
Preferably, the integrated redundant battery system further comprises a battery system box; the battery packs are all arranged in the battery system box body; the communication interface and the charging input interface are both arranged on the outer side wall of the battery system box body.
Preferably, a group of the battery packs corresponds to a power device. Design like this can make each other not influence between the power equipment, when one of them battery package broke down, other power equipment can normal operating, has avoided appearing because a battery package broke down and lead to the unable condition of work of whole battery system, has improved battery system's reliability and security.
Preferably, the battery control unit further comprises an alarm unit; the alarm unit is connected to the battery control unit; the alarm unit is used for giving an alarm when the battery control unit receives abnormal battery pack state data.
Preferably, the battery control unit further includes a protection unit including a fuse and a relay; and the relay is connected with the battery control unit and used for cutting off the circuit after receiving the alarm signal.
Preferably, the integrated redundancy battery system further comprises a heat dissipation device, and the heat dissipation device is installed in the battery system box body; the heat dissipation device is connected with the battery control unit.
The heat dissipation technology of the battery pack is a great problem in the battery industry, and the sealing requirement of the battery pack and the heat dissipation of the battery pack which are considered in safety are relatively contradictory problems. The heat dissipation method of the battery pack adopted in the implementation is forced air cooling. The forced air cooling method is to install a fan on a battery pack box body and take away heat in the battery pack through wind. Of course, the heat dissipation can also be performed by using a liquid cooling method, wherein the liquid cooling method uses working fluid as a medium for intermediate heat transmission to transfer heat from the hot zone to a remote place for cooling. The liquid cooling heat dissipation mode has the advantages of less energy consumption, high reliability and low noise, and the heat dissipation performance is better, but the weight and the cost of the battery pack are increased.
Various other modifications and changes can be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims.
Claims (9)
1. An integrated multi-redundancy battery system, comprising:
at least two groups of battery packs; the battery pack comprises a high-voltage box, a plurality of battery modules and a battery management unit; the high-voltage box and the battery management unit are both connected with the battery module;
a battery control unit; the high-voltage box and the battery management unit are both connected with a battery control unit; the battery control unit is connected with the communication interface;
a charging input interface; the high-voltage boxes are connected with the charging input interface; the charging input interface is used for charging the battery pack;
a plurality of groups of power supply output interfaces; the power supply output interface is connected with the high-voltage box; and the power supply output interface is externally connected with power equipment.
2. The integrated multi-redundancy battery system of claim 1, wherein: the high-voltage box is connected with the battery control unit through a control signal line; the battery management unit is connected with the battery control unit through an internal bus.
3. The integrated multi-redundancy battery system of claim 1, wherein: the number of the battery modules is consistent with that of the battery management units.
4. The integrated multi-redundancy battery system of claim 1, wherein: the positive electrode connectors and the negative electrode connectors of the battery modules are connected with each other.
5. The integrated multi-redundancy battery system of claim 1, wherein: the battery system box body is also included; the battery packs are all arranged in the battery system box body; the communication interface and the charging input interface are both arranged on the outer side wall of the battery system box body.
6. The integrated multi-redundancy battery system of claim 1, wherein: and the battery packs correspond to one power device.
7. The integrated multi-redundancy battery system of claim 1, wherein: the battery control unit also comprises an alarm unit; the alarm unit is connected to the battery control unit; the alarm unit is used for giving an alarm when the battery control unit receives abnormal battery pack state data.
8. The integrated multi-redundancy battery system of claim 1, wherein: the battery control unit further comprises a protection unit, and the protection unit comprises a fuse and a relay; and the relay is connected with the battery control unit and used for cutting off the circuit after receiving the alarm signal.
9. The integrated multi-redundancy battery system of claim 5, wherein: the battery system box body is internally provided with a battery system box body; the heat dissipation device is connected with the battery control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222972872.7U CN218586067U (en) | 2022-11-04 | 2022-11-04 | Integrated redundancy battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222972872.7U CN218586067U (en) | 2022-11-04 | 2022-11-04 | Integrated redundancy battery system |
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| Publication Number | Publication Date |
|---|---|
| CN218586067U true CN218586067U (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222972872.7U Active CN218586067U (en) | 2022-11-04 | 2022-11-04 | Integrated redundancy battery system |
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| CN (1) | CN218586067U (en) |
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- 2022-11-04 CN CN202222972872.7U patent/CN218586067U/en active Active
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