CN111342154B - Storage battery and hybrid vehicle - Google Patents
Storage battery and hybrid vehicle Download PDFInfo
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- CN111342154B CN111342154B CN202010209779.3A CN202010209779A CN111342154B CN 111342154 B CN111342154 B CN 111342154B CN 202010209779 A CN202010209779 A CN 202010209779A CN 111342154 B CN111342154 B CN 111342154B
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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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a storage battery and a hybrid power vehicle, and relates to the technical field of vehicle power batteries. The storage battery includes: a plurality of voltage terminals, each of which outputs a voltage level that is the same or different; the battery cells are connected with the voltage ends in series or in parallel; the plurality of switch elements are arranged between part or all of the battery cells and/or between the battery cells and the voltage ends and used for regulating the transmission of electric energy between the voltage ends by controlling the opening and closing of the plurality of switch elements. The storage battery provided by the invention can output voltages of a plurality of voltage levels at the same time.
Description
Technical Field
The invention relates to the field of vehicle power batteries, in particular to a storage battery and a hybrid vehicle.
Background
In the prior art, two batteries with two voltage levels exist on a hybrid vehicle, namely a low-voltage battery and a medium-high voltage battery, so as to realize the power supply of vehicle running and high-low voltage accessories, a DC/DC device is used between the two batteries for voltage conversion, when the electric quantity of the low-voltage battery is insufficient and the electric quantity of the medium-high voltage battery is sufficient, the DC/DC device converts the high voltage in the medium-high voltage battery into the low voltage and transmits the low voltage to the low-voltage battery, and conversely, when the electric quantity of the medium-high voltage battery is insufficient and the electric quantity of the low-voltage battery is sufficient, the DC/DC device converts the voltage in the low-voltage battery into the high voltage and. The prior art satisfies the power demand of the hybrid vehicle, but two batteries and corresponding DC/DC devices are required, so that the battery structure is complicated and the manufacturing cost is increased.
Disclosure of Invention
It is an object of the first aspect of the present invention to provide a secondary battery that can output voltages of a plurality of voltage levels at the same time.
It is a further object of the first aspect of the invention to provide a battery which can be constructed in a simple manner and at a low cost.
It is an object of the second aspect of the invention to provide a hybrid vehicle including the battery of the first aspect of the invention.
According to a first aspect of the present invention, there is provided a secondary battery comprising:
a plurality of voltage terminals, each of which outputs a voltage level that is the same or different;
the battery cells are connected with the voltage ends in series and/or in parallel;
the plurality of switch elements are arranged between part or all of the battery cells and/or between the battery cells and the voltage ends and are used for controlling the opening and closing of the plurality of switch elements to realize the transmission of electric energy between the plurality of voltage ends.
Optionally, the plurality of voltage terminals includes a first voltage terminal and a second voltage terminal;
a plurality of the battery cells form at least one first battery cell unit and at least one second battery cell unit, each second battery cell unit comprises at least one second battery cell group and at least one third battery cell group, and one second battery cell unit is connected with one first battery cell unit adjacent to the second battery cell unit;
the plurality of switching elements includes a first switching element disposed between the third cell group and the first voltage terminal and a second switching element disposed between the second cell group and the third cell group, the first switching element is configured to connect the third cell group with the first voltage terminal when it is closed, and the second switching element is configured to connect the second cell group and the third cell group in parallel when it is closed.
Optionally, when the first switching element is closed and the second switching element is opened, the electric energy of the first voltage end is obtained by connecting the at least one second battery cell group in the at least one first battery cell unit and the at least one second battery cell unit in series;
the electric energy of the second voltage end is obtained by connecting the at least one third battery core group in the at least one first battery cell unit and the at least one second battery cell unit in parallel.
Optionally, when the first switching element is turned off and the second switching element is turned on, the electric energy of the first voltage end is obtained by connecting at least one second battery cell group and at least one third battery cell group which are connected in parallel with the at least one first battery cell unit in parallel;
the electric energy of the second voltage end is obtained by the at least one first cell unit.
Optionally, the plurality of switching elements further comprises:
a third switching element disposed between the first and second adjacent cell units, the third switching element being configured to disconnect the first and second cell units when the third switching element is disconnected, and connect the first and second cell units when the third switching element is closed.
Optionally, the first cell unit, the second cell group, the third cell group, the first switch element, the second switch element and the third switch element are numbered according to a preset rule.
Optionally, each of the first cell units includes at least two parallel first cell groups formed by connecting a part of the plurality of cells in series and/or in parallel.
Optionally, each of the second battery cell groups includes a plurality of battery cells connected in series and/or in parallel.
Optionally, each of the third battery cell groups includes at least two battery cells connected in parallel.
According to a second aspect of the invention, the invention also provides a hybrid vehicle comprising the battery.
The storage battery provided by the invention comprises a plurality of voltage ends, and the voltage ends can output voltages with the same or different voltage levels so as to meet the actual use requirements of the vehicle, for example, a low voltage and a medium-high voltage can be output, so that the power consumption requirements of vehicle accessories and running can be met by one storage battery. And further, the storage battery further comprises a plurality of switch elements, one part of the switch elements can be arranged between the electric cores, and the other part of the switch elements can be arranged between the electric cores and the voltage ends, so that on one hand, the size of the electric energy stored in the voltage ends can be adjusted, on the other hand, the electric energy can be transmitted between the voltage ends, for example, when the electric energy of the high voltage end is lower, the electric energy of the low voltage end can be transmitted to the high voltage end by adjusting the on-off of the switch elements.
Furthermore, the scheme provided by the invention replaces a low-voltage battery and a medium-high voltage battery in the prior art, cancels DC/DC equipment in the prior art, and only changes the serial-parallel connection mode of the electric core groups or the electric cores in the electric core units through the opening and closing of the first switch element and the second switch element so that the storage battery can only realize the output of voltages with a plurality of voltage levels, thus the integration level of the storage battery is high, the structure is simple, unnecessary devices are reduced, and the cost is saved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a secondary battery according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a secondary battery according to another embodiment of the present invention;
fig. 3 is a schematic structural view of a secondary battery according to still another embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of a secondary battery according to an embodiment of the present invention. As shown in fig. 1, the secondary battery provided by the present invention generally includes a plurality of voltage terminals 50, a plurality of cells, and a plurality of switching elements 100. The voltage level output by each voltage terminal is the same or different. The plurality of battery cells are connected with the plurality of voltage terminals after being connected in series and/or in parallel. The plurality of switching elements are arranged between part or all of the battery cells and/or between the battery cells and the voltage terminals, and are used for controlling the switching of the plurality of switching elements to realize the transmission of electric energy between the plurality of voltage terminals.
The battery provided by the embodiment comprises a plurality of voltage terminals 50, the battery is a multi-voltage battery, and the plurality of voltage terminals can output voltages with the same or different voltage levels so as to meet the actual use requirements of the vehicle, for example, a low voltage and a medium-high voltage can be output, so that the electricity requirements of vehicle accessories and running can be met by one battery. And further, the storage battery further includes a plurality of switch elements 100, a part of the plurality of switch elements may be disposed between the electric cores, and another part of the plurality of switch elements may be disposed between the electric cores and the voltage terminals, so on the one hand, the magnitude of the electric energy stored in the voltage terminals may be adjusted, on the other hand, the electric energy may be transmitted between the voltage terminals, for example, when the electric energy of the high voltage terminal is low, the electric energy of the low voltage terminal may be transmitted to the high voltage terminal by adjusting the on/off of the switch elements.
With continued reference to fig. 1, in a particular embodiment, the plurality of voltage terminals includes a first voltage terminal and a second voltage terminal. A plurality of cells constitute at least one first cell unit 10 and at least one second cell unit 20. The plurality of switching elements includes a first switching element 30 and a second switching element 40. Each of the second cell units 20 includes at least one second cell group 21 and at least one third cell group 22. The first switching element 30 is disposed between the third electric core group 22 and the first voltage terminal 51. The second switching element 40 is disposed between the second cell group 21 and the third cell group 22, wherein one second cell unit 20 is connected to one first cell unit 10 adjacent thereto. The first switching element 30 is configured such that, when it is closed, the third set of cells 22 is connected to the first voltage terminal 51. The second switching element 40 is configured such that the second and third groups of cores 21 and 22 are connected in parallel when it is closed. As shown in fig. 1, where P1, P2, P3 and P4 all represent the first switch element 30, and S1, S2, S3 and S4 all represent the second switch element 40, it should be understood by those skilled in the art that fig. 1 only shows one specific embodiment of the present embodiment, and in practical use, the first switch element 30, the second switch element 40, the first cell unit 10 and the second cell unit 20 are not limited to the numbers shown in fig. 1.
The scheme of this embodiment has replaced low voltage battery and well high voltage battery among the prior art, has cancelled the DC/DC equipment among the prior art, only changes the electric core group or the series-parallel mode of electric core in the electric core unit through the switching of first switching element 30 and second switching element 40 and only can make this battery realize the voltage of exporting a plurality of voltage levels, so make the integrated level of this battery high, and the result is simple, has reduced unnecessary device and practices thrift the cost.
Fig. 2 is a schematic structural view of a secondary battery according to another embodiment of the present invention. As shown in fig. 2, when the first switching element 30 is closed and the second switching element 40 is opened, the electric energy at the first voltage end is obtained by connecting at least one second battery pack 21 in at least one first battery cell unit 10 and at least one second battery cell unit 20 in series, that is, as shown by the thick line in fig. 2. The electric energy of the second voltage terminal 52 is obtained by connecting at least one third battery core group 22 in at least one first battery cell unit 10 and at least one second battery cell unit 20 in parallel. At this time, assuming that the capacity of each of the cells is the same, the electric energy of the first voltage terminal 51 is smaller than that of the second voltage terminal 52. The first voltage terminal 51 provides power for low voltage accessories and the second voltage terminal 52 provides power for vehicle operation and high voltage accessories.
Fig. 3 is a schematic structural view of a secondary battery according to still another embodiment of the present invention. As shown in fig. 3, when the first switch element 30 is turned off and the second switch element 40 is turned on, the electric energy of the first voltage terminal 51 is obtained by connecting the at least one second battery cell group 21 and the at least one third battery cell group 22 in parallel with the at least one first battery cell unit 10, that is, as shown by the thick lines in fig. 3. While the electrical energy of the second voltage terminal 52 is obtained by at least one first cell unit 10. At this time, assuming that the capacity of each of the cells is the same, the electric energy of the first voltage terminal 51 is greater than that of the second voltage terminal 52.
In other embodiments, both the first switching element 30 and the second switching element 40 may be controlled to be turned off, and the battery will output only one voltage level.
In a specific embodiment, the battery further includes a third switching element, which is disposed between the adjacent first cell unit 10 and the second cell unit 20, and when the third switching element is turned off, the first cell unit 10 is turned off from the second cell unit 20, and at this time, if the first switching elements 30 are also turned off, the battery outputs only the voltage of the voltage level provided by the first cell unit 10.
In a preferred embodiment, each first cell unit 10, each second cell unit 20, each second cell group 21, each third cell group 22, each cell, each first switch element 30, each second switch element 40 and the third switch element can be numbered according to a preset rule, then the mode of connecting the cells or the cell groups or the cell units is determined according to the actual required electric quantity requirement of the vehicle, and finally the corresponding first switch element 30 and/or the second switch element 40 is controlled to be opened and/or closed. So, can satisfy the in-service use demand of vehicle for the flexibility of this battery is high, can adjust the electric energy that each voltage end has according to different vehicles or different user's demands. Preferably, a battery control unit may also be provided on the vehicle for controlling the opening and/or closing of the first switching element 30 and/or the second switching element 40 according to the actual power demand of the vehicle or the user. The battery control unit is connected with a driving motor, an accelerator pedal, a brake pedal, a high-voltage accessory and a low-voltage accessory of a vehicle. The driving intention and the power demand of the driver can be acquired, and then the first switch element 30 and/or the second switch element 40 are controlled correspondingly, so that the energy transfer is completed, and further the energy balance is achieved.
Referring to fig. 1, 2 or 3, each of the first cell units 10 includes at least two parallel first cell groups formed by connecting a plurality of cells in series and/or in parallel. Preferably, one of the cell units includes three first cell groups. The number of the first battery cell units 10 can be increased or decreased according to the actual demand of the vehicle, and similarly, the first battery cell group can also be increased or decreased according to the actual demand of the vehicle, and the number of the battery cells in the first battery cell group can be increased or decreased according to the actual power demand of the vehicle.
With continued reference to fig. 1, 2, or 3, each second cell group 21 includes a plurality of cells connected in series and/or in parallel. Preferably, the number of the electric cells in the second electric core group 21 can be increased or decreased according to the actual electricity demand of the vehicle.
With continued reference to fig. 1, 2, or 3, each third cell group 22 includes at least two cells connected in parallel. The number of the cells in the third cell group 22 can be increased or decreased according to the actual power demand of the vehicle.
Preferably, each battery cell unit, the battery cell group, the battery cell and the switch element are connected through a wire harness.
In other embodiments, the plurality of voltage terminals may further include a third voltage terminal, a fourth voltage terminal … …, an nth voltage terminal, the plurality of battery cells may further constitute at least one third battery cell unit, at least one fourth battery cell unit … …, at least one nth battery cell unit, the plurality of switching elements may further include a fourth switching element, a fifth switching element … …, and an nth switching element, while the connection relationship between each voltage terminal and the battery cell or the battery cell group can refer to the above-mentioned embodiments, for example, a switch element can be arranged between the battery cell and the voltage terminal as required, and correspondingly, a switch element can also be arranged between the battery cell and the battery cell, so that the storage battery can output voltages of a plurality of voltage levels, meanwhile, the transmission of electric energy among a plurality of voltage ends can be adjusted by controlling the on-off of the switching element, so that the electric energy is balanced.
In particular, the invention also provides a hybrid vehicle, which comprises the storage battery of any one of the embodiments and a battery control unit for controlling the storage battery, wherein the storage battery of the hybrid vehicle can output voltages of a plurality of voltage levels according to actual electricity demands.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (8)
1. An accumulator, comprising:
a plurality of voltage terminals (50), each of which outputs a voltage level that is the same or different;
the battery cells are connected with the voltage ends in series and/or in parallel;
a plurality of switching elements (100) disposed between some or all of the cells and/or between the cells and the voltage terminals for regulating the transmission of electrical energy between the voltage terminals by controlling the switching of the plurality of switching elements;
the plurality of voltage terminals (50) comprises a first voltage terminal (51) and a second voltage terminal (52);
a part or all of the plurality of cells form at least one first cell unit (10) and at least one second cell unit (20), each second cell unit (20) comprises at least one second cell group (21) and at least one third cell group (22), wherein one second cell unit (20) is connected with one first cell unit (10) adjacent to the second cell unit;
the plurality of switching elements (100) comprises a first switching element (30) arranged between the third cell group (22) and a first voltage terminal (51) and a second switching element (40) arranged between the second cell group (21) and the third cell group (22), the first switching element (30) being configured such that, when it is closed, the third cell group (22) is connected to the first voltage terminal (51), the second switching element (40) being configured such that, when it is closed, the second cell group (21) and the third cell group (22) are connected in parallel.
2. The accumulator according to claim 1, characterized in that, when the first switching element (30) is closed and the second switching element (40) is open, the electric energy of the first voltage terminal (51) is obtained by connecting the at least one first cell unit (10) and the at least one second cell group (21) of the at least one second cell unit (20) in series;
the electric energy of the second voltage terminal (52) is obtained by connecting the at least one third battery core group (22) in the at least one first battery cell unit (10) and the at least one second battery cell unit (20) in parallel.
3. The accumulator according to claim 1, characterized in that, when the first switching element (30) is open and the second switching element (40) is closed, the electric energy of the first voltage terminal (51) is obtained by connecting at least one second cell group (21) and at least one third cell group (22) in parallel with the at least one first cell unit (10);
the electrical energy of the second voltage terminal (52) is obtained by the at least one first cell unit (10).
4. A battery according to any one of claims 1-3, characterized in that said plurality of switching elements (100) further comprises:
a third switching element disposed between the adjacent first cell unit (10) and the second cell unit (20), the third switching element being configured such that the first cell unit (10) and the second cell unit (20) are disconnected when the third switching element is open, and the first cell unit (10) and the second cell unit (20) are connected when the third switching element is closed.
5. The accumulator according to claim 1, characterized in that each of said first cell units (10) comprises at least two parallel first groups of cells obtained by connecting some of said plurality of cells in series and/or in parallel.
6. The accumulator according to claim 1, characterized in that each of said second groups of cells (21) comprises a plurality of said cells connected in series and/or in parallel.
7. The accumulator according to claim 1, characterized in that each of said third groups of cells (22) comprises at least two of said cells connected in parallel.
8. A hybrid vehicle characterized by comprising the battery according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010209779.3A CN111342154B (en) | 2020-03-23 | 2020-03-23 | Storage battery and hybrid vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010209779.3A CN111342154B (en) | 2020-03-23 | 2020-03-23 | Storage battery and hybrid vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111342154A CN111342154A (en) | 2020-06-26 |
| CN111342154B true CN111342154B (en) | 2021-05-07 |
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