CN219056003U - Power battery pack, battery system and electric vehicle - Google Patents
Power battery pack, battery system and electric vehicle Download PDFInfo
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- CN219056003U CN219056003U CN202223387471.1U CN202223387471U CN219056003U CN 219056003 U CN219056003 U CN 219056003U CN 202223387471 U CN202223387471 U CN 202223387471U CN 219056003 U CN219056003 U CN 219056003U
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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
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Abstract
The utility model provides a power battery pack, a battery system and an electric vehicle, which comprise a plurality of parallel connection switches, a plurality of series connection switches and N battery modules formed by M series connection battery units, wherein each battery module is connected in parallel through the parallel connection switches; the j-th battery unit of the i-th battery module in the n sequentially adjacent battery modules is connected with the k-th battery unit in the (i+1) -th battery module through a serial switch, the n sequentially adjacent battery modules are converted into target battery modules outputting a second preset voltage through the serial switch, and the target battery modules are connected with the non-serial battery units in the n sequentially adjacent battery modules through a parallel switch, or the target battery modules and the battery modules adjacent to the target battery modules are connected through the parallel switch, so that the overall output voltage of the power battery pack is adjusted, and the adaptability of the power battery pack is improved.
Description
Technical Field
The utility model relates to the technical field of power battery packs, and particularly provides a power battery pack, a battery system and an electric vehicle.
Background
New energy automobiles are continuously developing at high speed, the power of the new energy automobiles is provided by a driving motor, and the energy is provided by a power battery pack. According to different motors and responsible requirements, the input voltage of the power system is different. The existing power battery pack is fixed in output voltage after leaving the factory, and can only be matched with a power system corresponding to the voltage, so that the adaptability of the power battery pack is poor.
Disclosure of Invention
The present utility model has been made to overcome the above-mentioned drawbacks, and provides a power battery pack, a battery system, and an electric vehicle that solve or at least partially solve the technical problem of poor adaptability of the power battery pack.
In a first aspect, the present utility model provides a power battery pack comprising a structure change switch bank and N battery modules; the output voltage of each battery module is a first preset voltage; each battery module comprises M battery units connected in series; n is greater than or equal to 2, M is greater than or equal to 2;
the structure change switch group comprises a plurality of parallel switch switches and a plurality of series switch switches;
two adjacent battery modules are connected in parallel through the parallel change-over switch;
the j-th battery unit of the i-th battery module in the n at least sequentially adjacent battery modules is connected with the k-th battery unit in the i+1-th battery module through the serial switch, so that the n sequentially adjacent battery modules are converted into target battery modules for outputting a second preset voltage through the serial switch; wherein N is greater than or equal to 2 and less than or equal to N; i is greater than or equal to 1 and less than or equal to n; j is greater than or equal to 1 and less than or equal to M; k is greater than or equal to 1 and less than or equal to M;
the target battery module is connected with the non-series battery units in the n adjacent battery modules which are adjacent in sequence through the parallel change-over switch, or the target battery module is connected with the battery modules adjacent to the target battery module through the parallel change-over switch.
Further, in the power battery pack described above, N is equal to 5; the M is equal to 3; the positive electrode end of the first battery module is connected with the positive electrode end of the fifth battery module sequentially through one parallel change-over switch;
the negative electrode end of the first battery module is connected with the negative electrode end of the fifth battery module sequentially through one parallel change-over switch;
the positive electrode end of the first battery module, the positive electrode end of the first battery of the second battery module and the positive electrode end of the first battery of the fifth battery module are respectively connected with a positive electrode wire;
the negative electrode end of the third battery of the second battery module and the negative electrode end of the third battery of the fourth battery module are respectively connected with a negative electrode wire;
the negative electrode end of the third battery unit of the first battery module is connected with the positive electrode end of the second battery unit of the second battery module through a serial change-over switch;
the positive electrode end of the second battery unit of the second battery module is connected with the negative electrode end of the first battery unit of the second battery module through one parallel change-over switch;
the negative electrode end of the first battery unit of the second battery module is connected with the positive electrode end of the first battery unit of the third battery module through a serial change-over switch;
the negative electrode end of the third battery unit of the third battery module is connected with the positive electrode end of the third battery unit of the fourth battery module through a serial change-over switch;
the positive electrode end of the third battery unit of the fourth battery module is connected with the negative electrode end of the second battery unit of the fourth battery module through one parallel switch;
the negative terminal of the second battery unit of the fourth battery module is connected with the negative wire through a serial change-over switch;
the positive electrode end of the first battery unit of the fourth battery module is connected with the negative electrode end of the third battery unit of the fifth battery module through a serial change-over switch;
when all the parallel change-over switches are closed and all the series change-over switches are opened, 5 battery modules are connected in parallel to output a first preset voltage to the outside for a power system adopting a first required voltage;
when all the parallel connection change-over switches are disconnected and all the series connection change-over switches are closed, 3 parallel connection target battery modules are formed to output second preset voltage outwards for a power system adopting second required voltage.
Further, in the power battery pack described above, the negative electrode of the jth battery cell is connected to the positive electrode of the kth battery cell through the series switching switch.
Further, in the above power battery pack, each of the battery cells includes a plurality of battery cells connected in series; each cell unit comprises a plurality of parallel single cells.
Further, in the above power battery pack, the parallel switch includes a dc relay.
Further, in the above power battery pack, the series change-over switch includes a dc relay.
Further, the power battery pack further comprises a charging and discharging interface;
the positive electrode of the charge-discharge interface is connected with a positive electrode wire;
and the negative electrode of the charge-discharge interface is connected with a negative electrode wire.
In a second aspect, the present utility model provides a battery system comprising a battery management system, a voltage detection device and a power battery pack as described in any one of the above;
the voltage detection device is connected with the power system and the battery management system;
the battery management system is connected with a parallel change-over switch and a series change-over switch in the power battery pack;
when the voltage detection device detects that the required voltage of the power system is matched with a first preset voltage, the parallel connection change-over switch is controlled to be closed, the series connection change-over switch is controlled to be opened, and the power battery pack outputs the first preset voltage;
when the voltage detection device detects that the required voltage of the power system is matched with a second preset voltage, the parallel switch is controlled to be opened, the series switch is controlled to be closed, and the power battery pack outputs the second preset voltage.
In a third aspect, the present utility model provides an electric vehicle comprising a battery system as described above.
Further, in the electric vehicle described above, the electric vehicle includes an autonomous vehicle and/or a manned vehicle.
The technical scheme provided by the utility model has at least one or more of the following beneficial effects:
in the technical scheme of implementing the utility model, the parallel change-over switch and the series change-over switch are arranged among the N battery modules so as to control the parallel change-over switch and the series change-over switch when power systems with different voltage requirements are supplied with power, thereby realizing the adjustment of the integral output voltage of the power battery pack and adapting to the requirements of different power systems. Therefore, the development cost of the battery and the whole vehicle can be reduced, and meanwhile, the adaptability between the power battery pack and different new energy automobiles is improved.
Drawings
The present disclosure will become more readily understood with reference to the accompanying drawings. As will be readily appreciated by those skilled in the art: the drawings are for illustrative purposes only and are not intended to limit the scope of the present utility model. Moreover, like numerals in the figures are used to designate like parts, wherein:
fig. 1 is a schematic view of the main structure of a power battery pack according to an embodiment of the present utility model;
fig. 2 is a schematic view of the main structure of a power battery pack according to another embodiment of the present utility model.
Detailed Description
Some embodiments of the utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
In the description of the present utility model, a "module," "processor" may include hardware, software, or a combination of both. A module may comprise hardware circuitry, various suitable sensors, communication ports, memory, or software components, such as program code, or a combination of software and hardware. The processor may be a central processor, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and/or signal processing functions. The processor may be implemented in software, hardware, or a combination of both. Non-transitory computer readable storage media include any suitable medium that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, and the like. The term "a and/or B" means all possible combinations of a and B, such as a alone, B alone or a and B. The term "at least one A or B" or "at least one of A and B" has a meaning similar to "A and/or B" and may include A alone, B alone or A and B. The singular forms "a", "an" and "the" include plural referents.
New energy automobiles are continuously developing at high speed, the power of the new energy automobiles is provided by a driving motor, and the energy is provided by a power battery pack. According to different motors and responsible requirements, the input voltage of the power system is different. The existing power battery pack is fixed in output voltage after leaving the factory, and can only be matched with a power system corresponding to the voltage, so that the adaptability of the power battery pack is poor.
For example, currently, the voltage platforms of new energy automobiles are mostly power battery packs of 48V and 72V. The sizes and the dimensions of the power battery packs of the two voltage platforms are greatly different and cannot be completely replaced, two power battery packs are required to be developed in the development process, the development cost of the power battery packs and the whole vehicle is increased, and the suitability between the power battery packs and different new energy automobiles is reduced.
Therefore, in order to solve the technical problems, the utility model provides the following technical scheme:
referring to fig. 1, fig. 1 is a schematic view of the main structure of a power battery pack according to an embodiment of the present utility model. As shown in fig. 1, the power battery pack in the embodiment of the present utility model may include a structure change switch group and N battery modules 10. Wherein the output voltage of each battery module 10 is a first preset voltage; each battery module 10 includes M battery cells 101 connected in series; n is greater than or equal to 2, and M is greater than or equal to 2. The structure change switch group comprises a plurality of parallel change switches K1 and a plurality of series change switches K2.
In one specific implementation, two adjacent battery modules 10 are connected in parallel through a parallel switch K1. The j-th battery cell 101 of the i-th battery module 10 of at least n sequentially adjacent battery modules 10 is connected with the K-th battery cell 101 of the i+1th battery module 10 through the serial transfer switch K2 so as to convert the n sequentially adjacent battery modules into a target battery module outputting a second preset voltage through the serial transfer switch K2; wherein N is greater than or equal to 2 and less than or equal to N; i is greater than or equal to 1 and less than or equal to n; j is greater than or equal to 1 and less than or equal to M; k is greater than or equal to 1 and less than or equal to M.
The target battery module is connected with the non-series battery units in the n adjacent battery modules which are adjacent in sequence through the parallel change-over switch K1, or the target battery module is connected with the battery modules adjacent to the target battery module through the parallel change-over switch K1. That is, if there is an unpaired battery cell in n adjacent battery modules, the unpaired battery cell is used as a battery cell in another target battery module, and the unpaired battery cell needs to be connected in parallel by the parallel switch K1 so as to connect two different target battery modules in parallel. If no non-series battery units exist in the n adjacent battery modules in sequence, the n adjacent battery modules in sequence form a target battery module, and the target battery module is connected with the adjacent battery modules through the parallel switch K1.
In a specific implementation process, when the required voltage of the power system matches the first preset voltage, the parallel switch K1 may be controlled to be closed, and the serial switch K2 may be controlled to be opened, so that the power battery pack outputs the first preset voltage, that is, the power battery pack is connected in parallel with each battery module 10, and the power battery pack may output the voltage of each battery module 10.
When the required voltage of the power system is matched with a second preset voltage, the parallel connection change-over switch K1 is controlled to be opened, the series connection change-over switch K2 is controlled to be closed, and the power battery pack outputs the second preset voltage. That is, since the second preset voltage is greater than the first preset voltage, the voltage of the single battery module 10 cannot meet the output requirement, at this time, n sequentially adjacent battery modules 10 may be selected, and then the series-connection change-over switch K2 is controlled to be closed, so that the plurality of battery units 101 are connected in series to obtain the second preset voltage for use in the corresponding power system.
In fig. 1, the solution of the present utility model is illustrated by taking 5 battery modules 10, each battery module 10 includes 3 battery cells 101 connected in series, and the voltage value of each battery cell 101 is 14.8V as an example. The 3 series-connected battery cells 101 are a first battery cell 101, a second battery cell 101, and a third battery cell 101 in the direction from the positive electrode wire v+ to the negative electrode wire V-. The voltage value of the first preset voltage can be 44.1V for a power system adopting 48V voltage; the voltage value of the second preset voltage can be 74V, and the power system adopting 72V voltage can be used. Each of the battery cells 101 includes a plurality of battery cells connected in series; each cell unit comprises a plurality of parallel single cells. For example, one cell unit may be formed of 20 parallel unit cells and one cell unit 101 may be formed of 4 series unit cells. The capacity of each cell may be 3Ah.
In a specific implementation process, the positive electrode terminal of the first battery module 10 to the positive electrode terminal of the fifth battery module 10 are sequentially connected through a parallel switch K1;
the negative electrode terminals of the first battery module 10 to the negative electrode terminal of the fifth battery module 10 are sequentially connected through a parallel change-over switch K1;
the positive electrode terminal of the first cell module 10, the positive electrode terminal of the first cell of the second cell module 10, and the positive electrode terminal of the first cell of the fifth cell module 10 are connected to the positive electrode wire v+, respectively;
the negative electrode end of the third battery of the second battery module 10 and the negative electrode end of the third battery of the fourth battery module 10 are respectively connected with the negative electrode wire V-through a serial change-over switch K2;
the negative electrode terminal of the third battery cell 101 of the first battery module 10 is connected with the positive electrode terminal of the second battery cell 101 of the second battery module 10 through a serial change-over switch K2;
the positive terminal of the second battery cell 101 of the second battery module 10 is connected with the negative terminal of the first battery cell 101 of the second battery module 10 through a parallel switch K1;
the negative electrode terminal of the first battery cell 101 of the second battery module 10 is connected with the positive electrode terminal of the first battery cell 101 of the third battery module 10 through a serial change-over switch K2;
the negative electrode terminal of the third battery cell 101 of the third battery module 10 is connected to the positive electrode terminal of the third battery cell 101 of the fourth battery module 10;
the positive terminal of the third battery cell 101 of the fourth battery module 10 is connected with the negative terminal of the second battery cell 101 of the fourth battery module 10 through a parallel switch K1;
the negative terminal of the second battery cell 101 of the fourth battery module 10 is also connected to the negative electrode wire V-through a series change-over switch K2;
the positive terminal of the first cell 101 of the fourth battery module 10 is connected with the negative terminal of the third cell 101 of the fifth battery module 10 through a serial switch K2;
in a specific implementation process, when all the parallel switches K1 are closed and all the series switches K2 are opened, the 5 battery modules 10 are connected in parallel to output a first preset voltage (44.4V voltage) for a power system adopting a first required voltage (48V voltage);
when all the parallel connection change-over switches K1 are disconnected and all the series connection change-over switches K2 are closed, 3 parallel connection target battery modules are formed to output second preset voltage (74V voltage) outwards for a power system adopting second required voltage (72V voltage).
It should be noted that the above voltage values, capacity values, the number N of battery modules 10, the number M of battery cells 101, and the like may be adjusted according to actual requirements, and the present embodiment is not limited in particular. When the above voltage values, capacity values, the number N of battery modules 10, the number M of battery cells 101, and the like are changed, the specific connection relationship among the corresponding battery cells 101, serial switch K2, parallel switch K1, and the like is "the j-th battery cell of the i-th battery module of at least N sequentially adjacent battery modules is connected to the K-th battery cell of the i+1th battery module through the serial switch so as to convert the N sequentially adjacent battery modules into the target battery module outputting the second preset voltage through the serial switch; the target battery module is connected with the non-series battery units in the n adjacent battery modules which are adjacent in sequence through the parallel change-over switch, or the target battery module and the battery modules adjacent to the target battery module are connected through the parallel change-over switch to change.
For example, when the power battery pack includes 6 battery modules 10, each battery module 10 includes 3 battery units 101 connected in series, and the voltage value of each battery unit 101 is 14.8V, the voltage value of the first preset voltage may be 44.1V, for use in a power system employing 48V; the voltage value of the second preset voltage can be 88.8V, and the power system adopting 88V voltage can be used. Each battery unit 101 comprises a battery cell unit formed by 20 parallel single battery cells and 4 battery cell units connected in series. The capacity of each cell may be 3Ah. Its corresponding circuit structure may be as shown in fig. 2.
Fig. 2 is a schematic view of the main structure of a power battery pack according to another embodiment of the present utility model. As shown in fig. 2, in the embodiment of the present utility model, the positive electrode terminal of the first battery module 10 to the positive electrode terminal of the sixth battery module 10 are sequentially connected through a parallel switch K1;
the negative electrode terminals of the first battery module 10 to the negative electrode terminal of the sixth battery module 10 are sequentially connected through a parallel change-over switch K1;
the positive electrode terminal of the first cell module 10, the positive electrode terminal of the first cell of the third cell module 10, and the positive electrode terminal of the first cell of the fifth cell module 10 are connected to the positive electrode wire v+, respectively;
the negative electrode terminal of the third cell of the second cell module 10, the negative electrode terminal of the third cell of the fourth cell module 10, and the negative electrode terminal of the third cell of the sixth cell module 10 are connected to the negative electrode wire V-, respectively;
the negative electrode terminal of the third battery cell 101 of the first battery module 10 is connected with the positive electrode terminal of the second battery cell 101 of the second battery module 10 through a first series-connection change-over switch K2;
the negative electrode terminal of the third battery cell 101 of the third battery module 10 is connected with the positive electrode terminal of the first battery cell 101 of the fourth battery module 10 through a serial switch K2;
the negative electrode terminal of the third battery cell 101 of the fifth battery module 10 is connected with the positive electrode terminal of the first battery cell 101 of the fifth battery module 10 through a serial switch K2;
in fig. 2, X is equal to Y, and after every 2 battery modules 10 are connected through the series change-over switch K2, a target battery module with an output of 88.8V can be formed, and each target battery module is connected in parallel.
It should be noted that fig. 1 and 2 are only a partial example of the power battery pack of the present utility model, and are not illustrated here.
According to the power battery pack of the embodiment, the parallel switch K1 and the series switch K2 are arranged among the N battery modules 10, so that when power is supplied to power systems with different voltage requirements, the parallel switch K1 and the series switch K2 are controlled, and the overall output voltage of the power battery pack is adjusted to adapt to the requirements of different power systems. Therefore, the development cost of the battery and the whole vehicle can be reduced, and meanwhile, the adaptability between the power battery pack and different new energy automobiles is improved.
Further, the utility model also provides a battery system.
With continued reference to fig. 1 or 2, the battery system includes a battery management system BMS, a voltage detection device (not shown in the drawings), and the power battery pack of the above-described embodiments. It will be appreciated by those skilled in the art that the battery management system BMS may include a positive control pin of the parallel switch K1, a positive control pin of the series switch K2, a 12v+ input, a 12V-input, and a 12V-output.
The voltage detection device is connected with the power system and the battery management system BMS;
the battery management system BMS is connected with the parallel switch K1 and the serial switch K2 in the power battery pack.
When the voltage detection device detects that the required voltage of the power system is matched with a first preset voltage, the parallel connection change-over switch K1 is controlled to be closed, the series connection change-over switch K2 is controlled to be opened, and the power battery pack outputs the first preset voltage;
when the voltage detection device detects that the required voltage of the power system is matched with a second preset voltage, the parallel connection change-over switch K1 is controlled to be opened, the series connection change-over switch K2 is controlled to be closed, and the power battery pack outputs the second preset voltage.
Further, the utility model also provides an electric vehicle, which can comprise the battery system of the embodiment. The electric vehicle may include an autonomous vehicle and/or a manned vehicle, among others.
Those skilled in the art will appreciate that the various modules in the motor control device may be adaptively split or combined. Such splitting or combining of specific modules does not cause the technical solution to deviate from the principle of the present utility model, and therefore, the technical solution after splitting or combining falls within the protection scope of the present utility model.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.
Claims (10)
1. The power battery pack is characterized by comprising a structure change switch group and N battery modules; the output voltage of each battery module is a first preset voltage; each battery module comprises M battery units connected in series; n is greater than or equal to 2, M is greater than or equal to 2;
the structure change switch group comprises a plurality of parallel switch switches and a plurality of series switch switches;
two adjacent battery modules are connected in parallel through the parallel change-over switch;
the j-th battery unit of the i-th battery module in the n at least sequentially adjacent battery modules is connected with the k-th battery unit in the i+1-th battery module through the serial switch, so that the n sequentially adjacent battery modules are converted into target battery modules for outputting a second preset voltage through the serial switch; wherein N is greater than or equal to 2 and less than or equal to N; i is greater than or equal to 1 and less than or equal to n; j is greater than or equal to 1 and less than or equal to M; k is greater than or equal to 1 and less than or equal to M;
the target battery module is connected with the non-series battery units in the n adjacent battery modules which are adjacent in sequence through the parallel change-over switch, or the target battery module is connected with the battery modules adjacent to the target battery module through the parallel change-over switch.
2. The power cell pack of claim 1, wherein N is equal to 5; the M is equal to 3; the positive electrode end of the first battery module is connected with the positive electrode end of the fifth battery module sequentially through one parallel change-over switch;
the negative electrode end of the first battery module is connected with the negative electrode end of the fifth battery module sequentially through one parallel change-over switch;
the positive electrode end of the first battery module, the positive electrode end of the first battery of the second battery module and the positive electrode end of the first battery of the fifth battery module are respectively connected with a positive electrode wire;
the negative electrode end of the third battery of the second battery module and the negative electrode end of the third battery of the fourth battery module are respectively connected with a negative electrode wire;
the negative electrode end of the third battery unit of the first battery module is connected with the positive electrode end of the second battery unit of the second battery module through a serial change-over switch;
the positive electrode end of the second battery unit of the second battery module is connected with the negative electrode end of the first battery unit of the second battery module through one parallel change-over switch;
the negative electrode end of the first battery unit of the second battery module is connected with the positive electrode end of the first battery unit of the third battery module through a serial change-over switch;
the negative electrode end of the third battery unit of the third battery module is connected with the positive electrode end of the third battery unit of the fourth battery module through a serial change-over switch;
the positive electrode end of the third battery unit of the fourth battery module is connected with the negative electrode end of the second battery unit of the fourth battery module through one parallel switch;
the negative terminal of the second battery unit of the fourth battery module is connected with the negative wire through a serial change-over switch;
the positive electrode end of the first battery unit of the fourth battery module is connected with the negative electrode end of the third battery unit of the fifth battery module through a serial change-over switch;
when all the parallel change-over switches are closed and all the series change-over switches are opened, 5 battery modules are connected in parallel to output a first preset voltage to the outside for a power system adopting a first required voltage;
when all the parallel connection change-over switches are disconnected and all the series connection change-over switches are closed, 3 parallel connection target battery modules are formed to output second preset voltage outwards for a power system adopting second required voltage.
3. The power battery pack according to claim 1, wherein the negative electrode of the jth battery cell is connected to the positive electrode of the kth battery cell through the series-switching switch.
4. The power cell pack of claim 1, wherein each of the battery cells comprises a plurality of cells connected in series; each cell unit comprises a plurality of parallel single cells.
5. The power cell pack of claim 1 wherein the shunt switch comprises a dc relay.
6. The power cell pack of claim 1 wherein the series switch comprises a dc relay.
7. The power cell pack of claim 1, further comprising a charge-discharge interface;
the positive electrode of the charge-discharge interface is connected with a positive electrode wire;
and the negative electrode of the charge-discharge interface is connected with a negative electrode wire.
8. A battery system comprising a battery management system, a voltage detection device, and the power battery pack of any one of claims 1-7;
the voltage detection device is connected with the power system and the battery management system;
the battery management system is connected with a parallel change-over switch and a series change-over switch in the power battery pack;
when the voltage detection device detects that the required voltage of the power system is matched with a first preset voltage, the parallel connection change-over switch is controlled to be closed, the series connection change-over switch is controlled to be opened, and the power battery pack outputs the first preset voltage;
when the voltage detection device detects that the required voltage of the power system is matched with a second preset voltage, the parallel switch is controlled to be opened, the series switch is controlled to be closed, and the power battery pack outputs the second preset voltage.
9. An electric vehicle comprising the battery system of claim 8.
10. The electric vehicle of claim 9, characterized in that the electric vehicle comprises an autonomous vehicle and/or a manned vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223387471.1U CN219056003U (en) | 2022-12-16 | 2022-12-16 | Power battery pack, battery system and electric vehicle |
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| CN202223387471.1U CN219056003U (en) | 2022-12-16 | 2022-12-16 | Power battery pack, battery system and electric vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025065284A1 (en) * | 2023-09-26 | 2025-04-03 | 广东逸动科技有限公司 | Battery pack, battery module, propulsion system and movable device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025065284A1 (en) * | 2023-09-26 | 2025-04-03 | 广东逸动科技有限公司 | Battery pack, battery module, propulsion system and movable device |
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