Battery pack and electric vehicle

Abstract

The utility model discloses a battery pack and electric automobile, this battery pack includes first main control module, second main control module and first slave control module, second slave control module, is provided with first slave control module or second slave control module on every the battery group, first slave control module, second slave control module are used for gathering the information of battery group, first main control module and second main control module are connected with first slave control module, second slave control module wireless communication respectively, wherein, first main control module is configured as receiving the information that first slave control module gathered, second main control module is configured as receiving the information that second slave control module gathered, and second main control module is still configured as the information that second slave control module gathered is relayed to first main control module. Like this, can avoid single main control receiving range insufficient problem, effectively covered the signal range of whole battery pack, avoids the appearance of blind area.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, and in particular to a battery pack and an electric vehicle. Background Technology

[0002] With the rapid development of new energy vehicles, battery system management has become crucial. The Battery Management System (BMS) plays a key role in new energy vehicles, monitoring battery status, balancing battery charge, and managing charging and discharging. With the development of wireless technology, the signal transmission method of BMS has gradually upgraded from wired to wireless.

[0003] Currently, commonly used wireless battery management systems (BMS) typically employ a slave control unit (SCU) installed on each battery pack. The slave control unit is responsible for collecting data such as battery pack voltage and temperature. All slave control units transmit the data to a master control unit (MCU). The master control unit processes and aggregates the data before uploading the information to the central control system (Vehicle Control Unit, VCU).

[0004] However, as the capacity of electric vehicle batteries increases and the number of battery packs grows, the placement area inside the battery pack also expands. Since a single main control module is responsible for receiving information from all battery packs, there may be insufficient signal reception range, especially when the placement area within the battery pack is widely distributed. In such cases, the reception range of a single main control module may create blind spots, leading to unstable or incomplete information transmission. Utility Model Content

[0005] The main purpose of this invention is to propose a battery pack that addresses the problem of insufficient signal reception range when a single main control module receives information from all battery packs.

[0006] To achieve the above objectives, this utility model proposes a battery pack comprising multiple battery groups, and further comprising a first master control module, a second master control module, a first slave control module, and a second slave control module. Each battery group is equipped with either the first slave control module or the second slave control module, which are used to collect information from the battery group. The first master control module and the first slave control module are wirelessly connected, and the second master control module and the second slave control module are also wirelessly connected. The first master control module is configured to receive information collected by the first slave control module, and the second master control module is configured to receive information collected by the second slave control module. Furthermore, the second master control module is configured to relay information collected by the second slave control module to the first master control module.

[0007] In some embodiments, the battery pack further includes a housing, in which a first placement area, a second placement area, and a third placement area are sequentially spaced along a first direction; the battery pack comprises a first battery pack, a second battery pack, and a third battery pack, wherein multiple first battery packs are placed side by side in the first placement area, multiple second battery packs are placed in the second placement area, and multiple third battery packs are placed side by side in the third placement area;

[0008] Among them, a plurality of first slave control modules are sequentially and spaced apart between the first battery pack and the second battery pack along the second direction, a plurality of second slave control modules are sequentially and spaced apart between the second battery pack and the third battery pack along the second direction, and the first master control module and the second master control module are spaced apart inside the housing.

[0009] In some embodiments, the first main control module has a first surface, and the mounting height of the first surface is less than or equal to the height of the battery pack;

[0010] And / or, the second main control module has a second surface, the mounting height of which is less than or equal to the height of the battery pack.

[0011] In some embodiments, there is a first gap between the first battery pack and the second battery pack, and a second gap between the second battery pack and the third battery pack, wherein the first main control module is disposed within the first gap, and the second main control module is disposed within the second gap.

[0012] In some embodiments, the first slave module is mounted on one end of the battery pack facing the first gap; and / or, the second slave module is mounted on one end of the battery pack facing the second gap.

[0013] In some embodiments, the battery pack further includes a first mounting bracket and a second mounting bracket, wherein the first mounting bracket is mounted on the bottom of the housing and located between the first battery pack and the second battery pack, and the second mounting bracket is mounted on the bottom of the housing and located between the second battery pack and the third battery pack;

[0014] The first main control module is installed in the first gap via the first mounting bracket;

[0015] And / or, the second main control module is mounted in the second gap via a second mounting bracket.

[0016] In some embodiments, the first main control module is disposed within the first gap, and the first main control module is located in the middle of the first gap;

[0017] And / or, the second main control module is disposed within the second gap, and the second main control module is located in the middle of the second gap.

[0018] In some embodiments, the first battery pack, the second battery pack, and the third battery pack have an installation area formed on the same side for mounting the first main control module and the second main control module, and the first main control module and the second main control module are spaced apart in the installation area.

[0019] In some embodiments, the outer surface of the first main control module is provided with a first receiving end, and the outer surface of the second main control module is provided with a second receiving end, wherein the first receiving end is disposed toward the first gap, and the second receiving end is disposed toward the second gap.

[0020] The utility model further proposes an electric vehicle including the battery pack of the aforementioned embodiments.

[0021] The beneficial effects of this utility model's technical solution are as follows: by setting multiple main control modules in the battery pack, the shortcomings of traditional single main control modules in terms of receiving range are effectively avoided. Specifically, the first main control module receives information collected by the first slave control module, the second main control module receives information collected by the second slave control module, and can relay the collected data to the first main control module to achieve a relay function. With the collaborative work of these multiple main control modules, the system's signal coverage extends throughout the entire battery pack, effectively avoiding the signal blind spot problem common in traditional solutions. Even with a large battery pack, the signal can be extended through relaying, ensuring the accuracy and integrity of data transmission. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the power battery pack and the battery pack in one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the power battery pack and the battery pack in one embodiment of the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of the power battery pack and the battery pack in another embodiment of the present invention;

[0026] Figure 5 for Figure 4 Enlarged diagram of point B in the middle.

[0027] Explanation of icon numbers:

[0028] 100. Battery pack; 102. Housing; 104. Battery group; 1051. First battery group; 1052. Second battery group; 1053. Third battery group; 104A. First placement area; 104B. Second placement area; 104C. Third placement area; 1041. First gap; 1042. Second gap;

[0029] 104d, Installation area; 106, Separator strip;

[0030] 108A, First mounting bracket; 108B, Second mounting bracket;

[0031] 202, First main control module; 206, First surface; 202A, First receiver; 204, Second main control module; 207, Second surface; 204A, Second receiver;

[0032] 300A, First slave control module; 300B, Second slave control module;

[0033] F, first direction; E, second direction.

[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0038] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0039] With the development of electric vehicles and renewable energy, battery management systems (BMS) play a crucial role in the operation of power batteries. The emergence of wireless battery management systems aims to solve the problems faced by traditional wired BMS in complex battery systems, such as wiring difficulties, maintenance complexity, and low system flexibility.

[0040] Wireless BMS collects, transmits, and processes battery information wirelessly, enabling effective management and monitoring of the battery pack. It offers significant advantages such as reduced wiring, lower system complexity, and increased flexibility. However, existing wireless BMS still have some problems in application. With the increasing capacity of electric vehicle battery packs, the number of battery packs is constantly increasing, and the placement area inside the battery pack is gradually expanding. A single main control module responsible for receiving information from all battery packs may experience insufficient signal reception range. For example, when the placement area within the battery pack is widely distributed, the reception range of a single main control module may create blind spots, leading to unstable or incomplete information transmission. Therefore, this utility model proposes a battery pack to eliminate reception blind spots, resulting in more stable and complete information transmission. See details below. Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of the power battery pack and the battery pack in one embodiment of the present invention. Figure 2This is a schematic diagram of the structure of the power battery pack and the battery pack in one embodiment of the present invention. Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0041] This utility model embodiment proposes a battery pack, the battery pack 100 including multiple battery groups 104, the battery pack also including a first master control module 202, a second master control module 204, a first slave control module 300A and a second slave control module 300B, each battery group 104 is provided with a first slave control module 300A or a second slave control module 300B, the first slave control module 300A and the second slave control module 300B are used to collect information of the battery group 104; the first master control module 202 is wirelessly connected to the first slave control module 300A, and the second master control module 204 is wirelessly connected to the second slave control module 300B.

[0042] The first master control module 202 is configured to receive information collected by the first slave control module 300A, the second master control module 204 is configured to receive information collected by the second slave control module 300B, and the second master control module 204 is also configured to relay the information collected by the second slave control module 300B to the first master control module 202.

[0043] The battery pack proposed in this embodiment is mainly used for real-time monitoring of data information of the power battery pack 100, which consists of multiple battery groups 104. Each battery group 104 is equipped with at least one slave control module (which can be a first slave control module 300A or a second slave control module 300B) responsible for collecting the operating status information of the battery group 104, such as key parameters like voltage, current, and temperature. The first slave control module 300A and the second slave control module 300B can use high-precision sensors (such as temperature sensors, voltage sensors, etc.) and wireless communication modules (such as Wi-Fi, Zigbee, LoRa, etc.) to acquire and transmit data.

[0044] In this embodiment, the first main control module 202 serves as the primary main control module, responsible for the core management functions of the entire system, such as data aggregation, processing, alarm generation, and transmission to the central control system. The first main control module 202 can use a high-performance microcontroller (MCU) or an embedded processor.

[0045] Specifically, the first main control module 202 can use an STM32F4 series high-performance microcontroller (such as the STM32F407VGT6) or an NXP i.MX RT1060 series cross-processor as its core processing unit, equipped with 512KB SRAM and 1MB Flash memory, with a main frequency of up to 180MHz. This module integrates a multi-channel ADC converter (12-bit precision), multiple serial communication interfaces (UART, SPI, I2C, CAN), and rich GPIO interfaces, enabling efficient processing of multi-channel sensor data. To achieve wireless communication with the slave control module, the first main control module 202 can also integrate a wireless communication unit, which can use a TICC2530 or Nordic RF52840 chip, supporting multiple wireless communication protocols such as ZigBee and BLE 5.0, with a communication distance of up to 100 meters. Furthermore, this module can also be equipped with a data processing algorithm library, including filtering algorithms, anomaly detection algorithms, and early warning threshold judgment logic, enabling real-time analysis and alarm functions for the collected data.

[0046] The second master control module 204 can use a Texas Instruments CC2652R or Silicon Labs EFR32MG21 series wireless MCU as its core processing unit, with a built-in 32-bit ARM Cortex-M4F processor with a main frequency of up to 48MHz, and equipped with 352KB Flash and 32KB RAM. This module is specifically designed to implement relay functions, has dual-mode wireless communication capabilities, supports multiple protocols such as ZigBee 3.0, Thread, and BLE 5.1, and can simultaneously establish stable wireless connections with the first master control module 202 and the second slave control module 300B. To improve signal relay efficiency, the second master control module 204 can adopt a full-duplex communication architecture and adaptive routing algorithm. After receiving data from the second slave control module 300B, it can evaluate the signal quality in real time and automatically select the optimal transmission path to ensure that the data can be reliably transmitted to the first master control module 202.

[0047] In practical applications, the first main control module 202 is responsible for the core decision-making and data processing of the system, while the second main control module 204 effectively extends the signal coverage of the system through its relay function, realizing comprehensive monitoring of large battery packs with no blind spots.

[0048] In some embodiments, the first main control module 202 and the second main control module 204 can be respectively disposed in different areas within the battery pack and wirelessly connected to the first slave control module 300A and the second slave control module 300B respectively. That is, the housing 102 can be provided with a first placement area 104A, a second placement area 104b and a third placement area 104C. Multiple battery packs 104 can be placed in each placement area. The multiple battery packs 104 can be arranged sequentially along the second direction E. There is a first gap 1041 between the first placement area 104A and the second placement area 104b, and a second gap 1042 between the second placement area 104b and the third placement area 104C.

[0049] In the first arrangement, the first main control module 202 and the second main control module 204 can be placed alternately within the same gap (either the first gap 1041 or the second gap 1042). Specifically, the first main control module 202 is located at one end of the gap, with the first receiving end 202A facing the adjacent first placement area 104A, and the second main control module 204 is located at the other end of the gap, with the second receiving end 204A facing the adjacent second placement area 104b. This arrangement allows the two main control modules to efficiently divide their work within a limited space and, through a compact spatial arrangement, minimizes the data transmission path.

[0050] Of course, the first main control module 202 and the second main control module 204 can also be placed in different gaps. For example, the first main control module 202 can be placed in the gap between the first placement area 104A and the second placement area 104b (first gap 1041), and the second main control module 204 can be placed in the gap between the second placement area 104b and the third placement area 104C (second gap 1042). This arrangement ensures that each main control module can focus on the data acquisition and management of the slave control modules in the adjacent area, thereby reducing interference and improving the efficiency and stability of signal transmission.

[0051] Alternatively, a dedicated area (installation area 104d) can be set up inside the battery pack 100 for housing the first main control module 202 and the second main control module 204. In this dedicated area, the main control modules can still be arranged at intervals, with the first main control module 202 and the second main control module 204 arranged at a fixed interval, each responsible for data acquisition and transmission in their respective placement areas.

[0052] The dedicated area can be located on the side or in the center of the battery pack 100 to ensure a balanced data transmission path across all areas. This centralized arrangement facilitates system maintenance and expansion; for example, when a new main control module needs to be added, it can be added directly within the dedicated area without requiring a complete system redesign.

[0053] In some complex battery pack designs, multiple arrangement methods can be combined. For example:

[0054] The first main control module 202 can be located in the gap between the first placement area 104A and the second placement area 104b (first gap 1041).

[0055] The second main control module 204 adopts a dedicated area layout, located in the centralized installation area 104d inside the battery pack. This hybrid layout can flexibly adjust the position and layout of the main control module according to the specific battery pack design requirements, thereby finding the best balance between signal reception, transmission path optimization and system expansion capabilities.

[0056] The above-listed distribution methods demonstrate diverse arrangement schemes for the first main control module 202 and the second main control module 204 within the battery pack. Adjustments can be made according to actual application scenarios and technical requirements to achieve efficient data acquisition, transmission, and system maintenance capabilities. Regardless of the method used, a reasonable module arrangement can improve the overall performance of the power battery pack system.

[0057] To achieve efficient communication, multiple slave control modules can be divided into corresponding parts according to certain rules. For example, in this embodiment, the first slave control module 300A is paired with the first master control module 202, and the second slave control module 300B is paired with the second master control module 204. The number of first slave control modules 300A and second slave control modules 300B can be multiple, and can be increased or decreased according to the size of the battery pack 100. Furthermore, each slave control module can be assigned a unique software ID or number to distinguish different battery packs 104 and slave control modules. During data transmission, the slave control module will send the collected data to the designated master control module according to its ID number. In this way, the system can flexibly manage battery packs 104 in different areas and transmit and forward data as needed.

[0058] It should be noted that this embodiment only uses the first main control module 202 and the second main control module 204 as relays. In other embodiments, there may be multiple main control modules, such as the first main control module 202, the second main control module 204, the third main control module, the fourth main control module, etc.

[0059] In actual operation, the first slave control module 300A and the second slave control module 300B periodically collect the operating status information of the corresponding battery pack 104 and send the data to the main control unit via a wireless network. The specific process is as follows:

[0060] The first slave control module 300A and the second slave control module 300B can collect data from the battery pack 104, such as voltage, current, and temperature, at preset time intervals. This data can be transmitted wirelessly in real time to the paired first master control module 202 and second master control module 204. To ensure data stability, a batch transmission method can be adopted, transmitting a small amount of data each time to avoid network congestion or data loss caused by transmitting too much data at the same time.

[0061] The second master control module 204 acts as a relay module. After receiving data from the second slave control module 300B, it forwards it to the first master control module 202. The function of the second master control module 204 is to extend the coverage of the wireless signal, ensuring that the data signal of the battery pack 104 located at the far end of the battery pack 100 can be successfully transmitted to the master control unit. Through this relay method, the second master control module 204 can not only extend the data transmission distance, but also effectively reduce data loss caused by excessive distance or signal attenuation.

[0062] The first master control module 202 receives and aggregates data collected by the first slave control module 300A and the second slave control module 300B. Then, the first master control module 202 processes this data, and the processed data is sent to the vehicle's central control unit (VCU). The VCU can further process this data, monitor the overall health status of the battery pack 100, and adjust the battery's operating mode as needed, such as reducing the load or activating the cooling system. In this way, the status of the battery pack 100 can be fed back to the vehicle management system in real time, ensuring the safety and reliability of the battery.

[0063] In this embodiment, by setting multiple master control modules in the battery pack, the shortcomings of traditional single master control modules in terms of reception range are effectively avoided. Specifically, the first master control module 202 receives information collected by the first slave control module 300B, and the second master control module 204 receives information collected by the second slave control module 300B, and can relay the collected data to the first master control module 202 to realize the relay function. With the collaborative work of these multiple master control modules, the signal coverage of the system can cover the entire battery pack 100, effectively avoiding the signal dead zone problem common in traditional solutions. Even if the battery pack 100 is large, the signal can be extended through relaying to ensure the accuracy and integrity of data transmission.

[0064] Furthermore, as the size of the battery pack 100 increases, the system's signal coverage can be expanded by adding more relay control modules. For example, as the capacity of the battery pack 100 increases, the number of second control modules 204 can be increased to ensure effective data transmission. Through this design, the system can meet the future needs of an ever-expanding battery pack 100, providing reliable support for broader battery management.

[0065] Continue reading Figure 2 In this embodiment, the battery pack 100 also includes a housing 102, and a first placement area 104A, a second placement area 104B and a third placement area 104C are sequentially spaced along the first direction F inside the housing 102; the battery pack 104 consists of a first battery pack 1051, a second battery pack 1052 and a third battery pack 1053, and multiple first battery packs 1051 are placed side by side in the first placement area 104A, multiple second battery packs 1052 are placed in the second placement area 104B, and multiple third battery packs 1053 are placed side by side in the third placement area 104C;

[0066] Among them, multiple first slave control modules 300A are sequentially and spaced apart along the second direction E between the first battery pack 1051 and the second battery pack 1052, multiple second slave control modules 300B are sequentially and spaced apart along the second direction E between the second battery pack 1052 and the third battery pack 1053, and the first master control module 202 and the second master control module 204 are spaced apart inside the housing.

[0067] It should be noted that this embodiment only uses three placement areas as an example. In other embodiments, there can be more placement areas, and correspondingly, the number of main control modules can also be increased. For example, a third main control module can be set to manage the data of the fourth placement area to ensure that the data of each area can be effectively collected and transmitted. For example, when there are a fourth and a fifth placement area, a third and a fourth main control module can be added to manage the data of these newly added placement areas respectively, thereby effectively expanding the coverage of the system. In this embodiment, multiple first battery packs 1051 are placed side by side in the first placement area 104A, multiple second battery packs 1052 are placed side by side in the second placement area 104b, and multiple third battery packs 1053 are placed side by side in the third placement area 104C. To achieve efficient management of the power battery pack 100, a slave control module is installed on each battery pack 104 to collect the status information of the battery pack 104.

[0068] In this embodiment, the main control unit can be composed of a first main control module 202 and a second main control module 204. Specifically, the two main control modules are spaced apart within the housing 102 and are used to receive and process data from the slave control modules 300 in each placement area. The first main control module 202 can be located near the first placement area 104A and the second placement area 104b, and is responsible for collecting data from the slave control modules 300 in these areas. The second main control module 204 can be located near the second placement area 104b and the third placement area 104C, and is responsible for collecting data from the slave control modules 300 in the third placement area 104C.

[0069] This arrangement ensures a short distance between the main control module and its subordinate slave control modules 300, effectively reducing data transmission latency and improving system stability and reliability. Simultaneously, this setup also results in more uniform monitoring signal coverage across the entire battery pack 100, eliminating signal blind spots.

[0070] Besides the methods described above, this embodiment may also have other arrangement methods. For example:

[0071] The first main control module 202 receives data from the first placement area 104A, and the second main control module 204 receives data from the second placement area 104b and the third placement area 104C. This arrangement reduces the load on the main control modules, achieving more balanced data processing. The first main control module 202 is primarily responsible for data acquisition and transmission from the first placement area 104A, while the second main control module 204 handles data from the second placement area 104B and the third placement area 104C. This approach reduces the workload of the first main control module 202 and is suitable for situations where the first placement area 104A has a large amount of data or requires fast processing speeds.

[0072] When the battery pack 100 is large, a third main control module can be added and placed on the other side of the third placement area 104C to ensure that the data of the slave control module 300 can be transmitted to the main control module more efficiently.

[0073] In some embodiments, the first main control module 202 and the second main control module 204 can be arranged at different levels. The first main control module 202 is located on the upper level, adjacent to the first placement area 104A and the second placement area 104b, while the second main control module 204 is located on the lower level, adjacent to the second placement area 104b and the third placement area 104C. This layered arrangement helps optimize space utilization, allowing the main control module to manage battery packs 104 at different levels simultaneously, avoiding space congestion and signal interference.

[0074] Through these different arrangement methods, the main control module and slave control module 300 of the power battery pack 100 can be flexibly configured to adapt to different application scenarios and changes in the scale of the battery pack 100, ensuring that the system's data acquisition and transmission are more efficient and stable.

[0075] In some embodiments, the first main control module 202 has a first surface 206, and the mounting height of the first surface 206 is less than or equal to the height of the battery pack 104.

[0076] The second main control module 204 has a second surface 207, the mounting height of which is less than or equal to the height of the battery pack 104.

[0077] In this embodiment, the first main control module 202 has a first surface 206, the installation height of which is less than or equal to the height of the battery pack 104. This means that setting the overall installation height of the first main control module 202 to be less than or equal to the height of the battery pack 104 effectively lowers the overall center of gravity of the system. This is crucial for the stability of the power battery pack 100 in practical applications. For example, when the battery pack 100 is installed in a mobile device such as an electric vehicle, a lower center of gravity can significantly improve the stability of the device and reduce the risk of tipping over during driving or movement.

[0078] It should be noted that the installation height of either the first main control module 202 or the second main control module 204 can be less than or equal to the height of the battery pack 104. Alternatively, the installation height of both the first main control module 202 and the second main control module 204 can be less than or equal to the height of the battery pack 104.

[0079] This height arrangement also helps to shorten the physical distance between the master control module and the slave control module 300. Since the first master control module 202 is responsible for receiving data from the first slave control module 300A, the shorter distance can effectively reduce the attenuation and interference of wireless signals during transmission, thereby improving the accuracy and real-time performance of data transmission.

[0080] Furthermore, limiting the height of the first main control module 202 to within the height of the battery pack 104 reduces the space occupied between system components, making the layout of the entire power battery pack 100 more compact and orderly. This has significant advantages in scenarios where more battery packs 104 need to be placed in a limited space.

[0081] Continue reading Figure 2 and Figure 3 In this embodiment, a first slave control module 300A is installed at one end of the battery pack 104 facing the first gap 1041;

[0082] A second slave control module 300B is installed at one end of the battery pack 104 facing the second gap 1042.

[0083] This embodiment further optimizes the installation position of the slave control module 300 based on the design with gaps between the first placement area 104A, the second placement area 104b and the third placement area 104C.

[0084] Specifically, a first slave control module 300A is installed at the end of the battery pack 104 facing the first gap 1041. The first slave control module 300A is installed at the position of the first gap 1041, so that it can easily collect the operating status information of each battery pack 104.

[0085] The first master control module 202 can be positioned adjacent to the gap between the first placement area 104A and the second placement area 104b (i.e., the first gap 1041). Since multiple slave control modules 300 are located within this gap, this arrangement allows the first master control module 202 to easily receive data from the slave control modules 300 in both the first and second placement areas 104A and 104b. Positioning the master control module adjacent to the slave control modules 300 effectively shortens the data transmission path, improving signal transmission efficiency and data accuracy.

[0086] Similarly, the second master control module 204 can be positioned adjacent to the gap between the second placement area 104b and the third placement area 104C (second gap 1042) and is responsible for receiving data from the slave control module 300 from the third placement area 104C. This arrangement allows the second master control module 204 to receive information through a shorter transmission link, reducing signal transmission delay and improving system stability.

[0087] As the size of the battery pack 100 is further increased, the monitoring coverage of the system can be expanded by adding more master control modules and slave control modules 300. For example, a third master control module can be set near the gap between the third placement area 104C and the newly added fourth placement area to ensure that data from these newly added areas can also be effectively monitored and managed.

[0088] Continue reading Figure 3 In this embodiment, there is a first gap 1041 between the first battery pack 1051 and the second battery pack 1052, and a second gap 1042 between the second battery pack 1052 and the third battery pack 1053. The first main control module 202 is disposed in the first gap 1041, and the second main control module 204 is disposed in the second gap 1042.

[0089] With this arrangement, the master control modules can be placed closer to the slave control modules 300 they are responsible for monitoring, thereby achieving more efficient data acquisition and management.

[0090] Specifically, the first master control module 202 is located in the gap between the first battery pack 1051 and the second battery pack 1052, specifically within the first gap 1041, and can directly receive data from the slave control modules 300 in these two areas. This arrangement shortens the signal transmission path and reduces physical obstacles and interference factors that may be encountered during signal transmission, thereby improving the data transmission rate and accuracy. The close proximity arrangement makes data transmission more stable, ensuring that the first master control module 202 can quickly respond to and process the status of the battery packs 104 in the first and second placement areas 104b.

[0091] Similarly, the second master control module 204 is located in the gap between the second battery pack (1052) and the third battery pack (1053), specifically within the second gap 1042. The second master control module 204 is responsible for receiving data from the slave control module 300 in the third placement area 104C. This arrangement ensures that the second master control module 204 can promptly receive and manage data from the battery pack 104 in the third placement area 104C, and can relay this data to the first master control module 202. Furthermore, the second master control module 204 can also obtain relevant data from the adjacent second placement area 104b, making the data coverage of the entire monitoring system more comprehensive and accurate.

[0092] This inter-module spacing not only effectively utilizes the internal space of the power battery pack 100, but also simplifies and improves the efficiency of data acquisition. By placing the main control module within the gaps, spatial conflicts with other components are avoided, resulting in a more compact system structure. Furthermore, this design makes the system more flexible for expansion. For example, if the size of the power battery pack 100 increases and a fourth placement area needs to be added, a third main control module can be added in the gap between the third placement area 104C and the fourth placement area, ensuring that data acquisition in the newly added area is unaffected.

[0093] Continue reading Figure 3 In this embodiment, the battery pack 100 further includes a first mounting bracket 108A and a second mounting bracket 108B. The first mounting bracket 108A is installed at the bottom of the housing (102) and is located between the first battery pack 1051 and the second battery pack 1052. The second mounting bracket 108B is installed at the bottom of the housing 102 and is located between the second battery pack 1052 and the third battery pack 1053.

[0094] The first main control module 202 is installed in the first gap 1041 via the first mounting bracket 108A;

[0095] The second main control module 204 is installed in the second gap 1042 via the second mounting bracket 108B.

[0096] In this embodiment, the first main control module 202 is mounted via a first mounting bracket 108A in the gap between the first placement area 104A and the second placement area 104b, i.e., within the first gap 1041; the second main control module 204 is mounted via a second mounting bracket 108B in the gap between the second placement area 104b and the third placement area 104C, i.e., within the second gap 1042. By using the first mounting bracket 108A and the second mounting bracket 108B, the positions of the first main control module 202 and the second main control module 204 can be better fixed, ensuring stability during operation.

[0097] The first main control module 202 and the second main control module 204 are mounted in their respective gaps using mounting brackets 108. This not only makes the connection between the main control module and the adjacent battery pack 104 tighter, but also helps to reduce the impact of vibration on the module. The power battery pack 100 may encounter various vibrations and impacts during operation. The mounting brackets 108 provide additional support and protection for the main control module, thereby reducing the risk of unstable signal transmission or hardware damage caused by vibration.

[0098] In this embodiment, the mounting bracket 108 can be made of materials with buffering and shock absorption functions, such as rubber, silicone or polyurethane. These materials can effectively absorb and reduce the vibration generated during operation, further protecting the stability of the main control module and the reliability of data transmission.

[0099] Furthermore, the mounting bracket 108 may also include a quick-release mechanism for easy operation during maintenance or replacement of the main control module. This design not only simplifies the maintenance process but also significantly reduces downtime of the battery pack 100, improving the maintainability of the entire system. For example, when a main control module needs to be replaced or repaired, technicians can quickly disassemble the mounting bracket 108 to perform the necessary checks and operations without dismantling the entire battery pack 104 structure.

[0100] By using the mounting bracket 108, the main control module arrangement in this embodiment achieves stability, shock resistance, and flexibility. The rational design of the mounting bracket 108 ensures the stability of the main control module within a compact space, while also ensuring that data transmission is not disturbed by external vibrations, thereby improving the reliability and operating efficiency of the entire power battery pack 100 system.

[0101] Continue reading Figure 3 In this embodiment, the first main control module 202 is disposed within the first gap 1041, and the first main control module 202 is located in the middle of the first gap 1041;

[0102] The second main control module 204 is disposed within the second gap 1042, and the second main control module is located in the middle of the second gap 1042.

[0103] This arrangement aims to ensure that the first master control module 202 is physically located at the center of multiple first slave control modules 300A, and to ensure that the second master control module 204 is physically located at the center of multiple second slave control modules 300B, so as to achieve the best signal reception and transmission path, thereby improving the communication efficiency and reliability of the entire system.

[0104] For example, assuming five first slave control modules 300A are spaced apart from left to right within the gap, the first master control module 202 is located near the third first slave control module 300A from left to right. This ensures that data from each first slave control module 300A can be quickly and evenly transmitted to the first master control module 202, reducing transmission delay and attenuation. The arrangement of the second master control module 204 and the second slave control modules is the same, and will not be described in detail here.

[0105] The advantage of this central arrangement is that the master control module can establish a more balanced communication connection among multiple slave control modules, avoiding problems such as one-sided bias or excessive distance. Whether it is the first master control module 202 or the second master control module 204, their arrangement in the middle of their respective slave control modules 300 can ensure that the signal transmission of the system remains balanced, reducing the problem of inconsistent signal strength caused by distance differences.

[0106] Furthermore, the centrally located main control module layout reduces the complexity of internal wiring within the battery pack 100. Because the main control module is centrally located, the wiring lengths from each slave control module 300 to the main control module are relatively equal, avoiding electrical interference and signal attenuation issues caused by excessively long or short wiring. This balanced layout results in neater and more orderly wiring, improving the overall reliability of the system.

[0107] See Figure 4 and Figure 5 In this embodiment, the outer surface of the first main control module 202 is provided with a first receiving end 202A, and the outer surface of the second main control module 204 is provided with a second receiving end 204A. The first receiving end 202A is disposed toward the first gap 1041, and the second receiving end 204A is disposed toward the second gap 1042.

[0108] Continue reading Figure 5In this embodiment, a mounting area 104d for mounting the first main control module 202 and the second main control module 204 is formed on the same side of the first battery pack 1051, the second battery pack 1052, and the third battery pack 1053. The first main control module 202 and the second main control module 204 are spaced apart in the mounting area 104d. Specifically, the mounting area 104d is located on the side of the power battery pack 100 and is uniformly planned as the arrangement area for the main control modules. In this way, the first main control module 202 and the second main control module 204 can be spaced apart on one side of the battery pack 104.

[0109] Thus, the first receiving end 202A of the first main control module 202 is positioned facing the first gap 1041, and the second receiving end 204A of the second main control module 204 is positioned facing the second gap 1042. Specifically, the first receiving end 202A faces the gap between the first placement area 104A and the second placement area 104b, while the second receiving end 204A faces the gap between the second placement area 104b and the third placement area 104C. This reduces signal obstruction between the first main control module 202 and the second main control module 204, thereby effectively reducing signal attenuation and improving data transmission quality and response speed.

[0110] This utility model further proposes an electric vehicle including the battery pack of the aforementioned embodiments. The specific structure of the battery pack is as described in the above embodiments. Since this electric vehicle adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0111] In this embodiment, the electric vehicle includes the battery pack 100 of the aforementioned embodiment. The entire battery pack 100 is comprehensively managed by the first main control module 202, the second main control module 204, the first slave control module 300A, and the second slave control module 300B, etc., to ensure the shortest signal transmission path, reduce signal interference, and improve the working efficiency of the battery management system and the stability of data transmission.

[0112] In electric vehicles, each battery pack 104 wirelessly communicates with the main control modules (first main control module 202, second main control module 204) via slave control modules (first slave control module 300A, second slave control module 300B), while the main control modules maintain a wireless connection with the central control unit (VCU). Due to the design of the mounting area 104d, the main control modules (first main control module 202) and relay main control modules (second main control module 204) are installed at intervals in a dedicated area, enabling more efficient management of data acquisition and status monitoring of multiple battery packs 104. The modular design of the mounting area 104d not only provides convenient conditions for system expansion but also improves the system's maintainability and flexibility.

[0113] Furthermore, the receiving ends (first receiving end 202A and second receiving end 204A) of the first main control module 202 and the second main control module 204 in the system are both arranged facing the gap between adjacent battery packs 104, further optimizing signal transmission quality and reducing signal attenuation and interference during data acquisition. Through flexible configuration of the software protocol, the first main control module 202 and the relay module (second main control module 204) can dynamically switch roles during operation according to system requirements to cope with different workloads. This design not only enhances the redundancy of the system but also improves the reliability and availability of the system under complex operating conditions.

[0114] This electric vehicle improves its performance in terms of signal transmission efficiency, data management reliability, and system scalability by integrating all the technical solutions of the battery pack.

[0115] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A battery pack, the battery pack comprising a plurality of battery groups, characterized in that, The battery pack further includes a first master control module, a second master control module, a first slave control module, and a second slave control module. Each battery pack is equipped with either the first slave control module or the second slave control module. The first slave control module and the second slave control module are used to collect information from the battery pack. The first master control module and the first slave control module are wirelessly connected, and the second master control module and the second slave control module are wirelessly connected. The first master control module is configured to receive information collected by the first slave control module, the second master control module is configured to receive information collected by the second slave control module, and the second master control module is also configured to relay the information collected by the second slave control module to the first master control module.

2. The battery pack according to claim 1, characterized in that, The battery pack also includes a housing, in which a first placement area, a second placement area, and a third placement area are sequentially spaced along a first direction; the battery pack consists of a first battery pack, a second battery pack, and a third battery pack, with multiple first battery packs placed side by side in the first placement area, multiple second battery packs placed in the second placement area, and multiple third battery packs placed side by side in the third placement area. Among them, a plurality of first slave control modules are sequentially and spaced apart between the first battery pack and the second battery pack along the second direction, a plurality of second slave control modules are sequentially and spaced apart between the second battery pack and the third battery pack along the second direction, and the first master control module and the second master control module are spaced apart inside the housing.

3. The battery pack according to claim 2, characterized in that, The first main control module has a first surface, the mounting height of which is less than or equal to the height of the battery pack; and / or, The second main control module has a second surface, the mounting height of which is less than or equal to the height of the battery pack.

4. The battery pack according to claim 2, characterized in that, There is a first gap between the first battery pack and the second battery pack, and a second gap between the second battery pack and the third battery pack. The first main control module is disposed within the first gap, and the second main control module is disposed within the second gap.

5. The battery pack according to claim 4, characterized in that, The first slave control module is installed at the end of the battery pack facing the first gap; and / or, the second slave control module is installed at the end of the battery pack facing the second gap.

6. The battery pack according to claim 5, characterized in that, The battery pack further includes a first mounting bracket and a second mounting bracket. The first mounting bracket is installed at the bottom of the housing and is located between the first battery pack and the second battery pack. The second mounting bracket is installed at the bottom of the housing and is located between the second battery pack and the third battery pack. Wherein, the first main control module is mounted within the first gap via the first mounting bracket; and / or, The second main control module is installed in the second gap via the second mounting bracket.

7. The battery pack according to claim 6, characterized in that, The first main control module is disposed within the first gap, and the first main control module is located in the middle of the first gap; and / or, The second main control module is disposed within the second gap, and the second main control module is located in the middle of the second gap.

8. The battery pack according to claim 4, characterized in that, The first battery pack, the second battery pack, and the third battery pack have an installation area on the same side for installing the first main control module and the second main control module, and the first main control module and the second main control module are spaced apart in the installation area.

9. The battery pack according to claim 8, characterized in that, The outer surface of the first main control module is provided with a first receiving end, and the outer surface of the second main control module is provided with a second receiving end, wherein the first receiving end is disposed facing the first gap, and the second receiving end is disposed facing the second gap.

10. An electric vehicle, characterized in that, Includes the battery pack as described in any one of claims 1 to 9.

Images