A battery pack structure usable for a shared trolley

Abstract

The utility model discloses a battery package structure can be used to shared tram, including sealed battery package shell, be provided with multiple group first battery module and at least one group second battery module in the battery package shell, multiple group first battery module series connection, multiple group first battery module and second battery module parallel connection, there are multiple iron lithium electric core series connection in multiple group first battery module, there are multiple iron lithium electric core series connection in the second battery module, be provided with control circuit board in the battery package shell, be provided with control module and wireless communication module for controlling first battery module and second battery module charge -discharge on the control circuit board, control module and wireless communication module signal intercommunication, control module and first battery module and second battery module electricity intercommunication, the battery package structure can be used to shared tram of the utility model can satisfy the requirement of new national standard of electric bicycle, has better security.

Description

Technical Field

[0001] This utility model relates to a battery pack structure that can be used in shared electric vehicles. Background Technology

[0002] Electric bicycles are currently an important mode of transportation, meeting travel needs. Shared electric bicycles have also emerged, allowing users to conveniently use them in public areas simply by scanning a code. However, with the release of the new national standard for electric bicycles, GB 43854-2024 "Safety Technical Specifications for Lithium-ion Batteries for Electric Bicycles," new requirements have been introduced for electric bicycle batteries and charging connectors / plugs. Some current battery packs and charging plugs do not meet these requirements and necessitate redesign and improvements. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a battery pack structure that can be used in shared electric vehicles. This battery pack structure can meet the requirements of the new national standard for electric bicycles and has better safety.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A battery pack structure that can be used in shared electric vehicles is provided, comprising a sealed battery pack housing. Multiple sets of first battery modules and at least one set of second battery modules are disposed within the battery pack housing. The multiple sets of first battery modules are connected in series, and the multiple sets of first battery modules and second battery modules are connected in parallel. Multiple lithium iron phosphate (LiFePO4) cells are connected in series within each of the multiple sets of first battery modules, and multiple LiFePO4 cells are connected in series within each of the second battery modules. A control circuit board is disposed within the battery pack housing. The control circuit board is provided with a control module for controlling the charging and discharging of the first and second battery modules, and a wireless communication module. The control module and the wireless communication module are signal-connected, and the control module is electrically connected to the first and second battery modules.

[0005] Preferably, a charging plug is provided at one end of the battery pack housing, and the charging plug is electrically connected to the control module.

[0006] Preferably, the first battery module consists of four groups, and the second battery module consists of one group.

[0007] Preferably, the lithium iron phosphate battery cell is a 21700 lithium iron phosphate battery cell or a 26700 lithium iron phosphate battery cell.

[0008] The beneficial effects of this utility model are: the battery pack structure of this utility model that can be used in shared electric vehicles can meet the requirements of the new national standard for electric bicycles, has better safety and charging and discharging performance, and can also be applied to shared electric bicycles. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0010] Figure 1 This is a schematic diagram of the battery pack structure of this utility model that can be used in shared electric vehicles in an embodiment;

[0011] Figure 2 and Figure 3 This is a schematic diagram of the structure of the first battery module and the second battery module in the battery pack structure of the present invention, which can be used in shared electric vehicles. Detailed Implementation

[0012] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] Please see Figures 1 to 3 A battery pack structure for use in shared electric vehicles includes a sealed battery pack housing 1. Multiple first battery modules 2 and at least one second battery module 3 are disposed within the battery pack housing 1. The multiple first battery modules 2 are connected in series, and the multiple first battery modules 2 and the multiple second battery modules 3 are connected in parallel. Multiple lithium iron phosphate (LFP) cells 4 are connected in series within each of the multiple first battery modules 2, and multiple LFP cells 4 are connected in series within each of the second battery modules 3. A control circuit board 5 is disposed within the battery pack housing 1. The control circuit board 5 is equipped with a control module 6 for controlling the charging and discharging of the first battery modules 2 and the second battery modules 3, and a wireless communication module 7. The control module 6 is signal-connected to the wireless communication module 7, and the control module 6 is electrically connected to the first battery modules 2 and the second battery modules 3. The wireless communication module 7 facilitates remote control of the battery pack and is suitable for remote control of shared electric vehicles.

[0014] Preferably, a charging plug 8 is provided at one end of the battery pack housing 1. The charging plug 8 is electrically connected to the control module 6, and the charging plug 8 complies with the requirements of GB 43854-2024 "Safety Technical Specification for Lithium-ion Batteries for Electric Bicycles". The battery is charged and discharged through the charging plug 8.

[0015] Preferably, the first battery module 2 consists of four groups, and the second battery module 3 consists of one group.

[0016] Preferably, the lithium iron phosphate battery cell 4 is a 21700 lithium iron phosphate battery cell or a 26700 lithium iron phosphate battery cell, which meets the requirements of GB 43854-2024 "Safety Technical Specifications for Lithium-ion Batteries for Electric Bicycles", and is non-explosive and non-flammable, with better safety and charge / discharge performance.

[0017] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A battery pack structure for use in shared electric vehicles, comprising a sealed battery pack housing, characterized in that, The battery pack housing contains multiple sets of first battery modules and at least one set of second battery modules. The multiple sets of first battery modules are connected in series, and the multiple sets of first battery modules and second battery modules are connected in parallel. Each set of first battery modules contains multiple lithium iron phosphate cells connected in series, and each set of second battery modules contains multiple lithium iron phosphate cells connected in series. The battery pack housing contains a control circuit board, which includes a control module for controlling the charging and discharging of the first and second battery modules, and a wireless communication module. The control module and the wireless communication module are signal-connected, and the control module is electrically connected to the first and second battery modules.

2. The battery pack structure for use in shared electric vehicles according to claim 1, characterized in that, A charging plug is provided at one end of the battery pack housing, and the charging plug is electrically connected to the control module.

3. The battery pack structure for use in shared electric vehicles according to claim 1 or 2, characterized in that, The first battery module consists of four groups, and the second battery module consists of one group.

4. The battery pack structure for use in shared electric vehicles according to claim 3, characterized in that, The lithium iron phosphate battery cell is either a 21700 lithium iron phosphate battery cell or a 26700 lithium iron phosphate battery cell.

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