Battery system and vehicle with same

Abstract

The utility model provides a battery system and a vehicle with the same, and relates to the technical field of new battery systems, in particular to the battery system, which comprises a battery box, a plurality of battery cells and a battery pack, the controller assembly comprises a master controller and a mounting box, a slave controller is arranged in the mounting box, and the slave controller is electrically connected with the master controller; the temperature acquisition assembly is electrically connected with the main controller, and the temperature acquisition assembly is detachably connected with at least one of the battery box and the mounting box; wherein part of the battery cells are electrically connected with the slave controller, the other part of the battery cells are electrically connected with the temperature acquisition assembly, part of the battery cells acquire the temperature through the slave controller, and the other part of the battery cells acquire the temperature through the temperature acquisition assembly, so that comprehensive acquisition of the battery cells is realized, and the space structure of the battery system is optimized; the problem that in the prior art, matching and space adaptability of a slave control module of a battery management system at a temperature acquisition point cannot meet requirements is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery system technology, and more specifically, to a battery system and a vehicle having the same. Background Technology

[0002] For older vehicle battery systems, due to the large number of battery cells, a mode of one master controller and multiple slave controllers is used to manage the battery system. Each slave controller is responsible for a certain number of battery cells. Slave controllers usually integrate temperature acquisition functions. Only the slave controller is responsible for the acquisition and monitoring of battery data in a local or specific part, such as voltage and temperature, and transmits this data to the master controller through communication lines (such as CAN bus).

[0003] With increasing market emphasis on battery safety, higher demands are being placed on battery temperature monitoring. This requires temperature data collection for each cell in the battery pack to ensure the battery operates within a safe temperature range and avoids performance degradation or safety issues caused by overheating or overcooling. Existing slave control modules are relatively large, and their installation space within the battery pack is limited. This is especially true when additional data collection points are needed, making the placement and number of existing slave control modules a significant challenge. As the battery pack size or the number of cells increases, the installation location of the slave control modules may need to be redesigned to accommodate the monitoring needs of more cells, undoubtedly increasing design and manufacturing complexity. Furthermore, from a cost control perspective, simply increasing the number of slave control modules to meet the temperature collection requirements of all cells would lead to a significant increase in cost.

[0004] In summary, existing battery management system slave modules have certain limitations in terms of temperature acquisition point allocation, spatial adaptability, and cost efficiency.

[0005] There is currently no effective solution to the above problems. Utility Model Content

[0006] The main objective of this invention is to provide a battery system and a vehicle having the same, in order to solve the problem that the slave control module of the existing battery management system cannot meet the requirements in terms of temperature acquisition point ratio and spatial adaptability.

[0007] To achieve the above objectives, according to one aspect of the present invention, a battery system is provided, comprising: a battery box containing a plurality of battery cells; a controller assembly including a main controller and a mounting box, wherein a slave controller is disposed within the mounting box and is electrically connected to the main controller; and a temperature acquisition assembly electrically connected to the main controller and detachably connected to at least one of the battery box and the mounting box; wherein a portion of the battery cells are electrically connected to the slave controller, and another portion of the battery cells are electrically connected to the temperature acquisition assembly.

[0008] Furthermore, the temperature acquisition component includes: a temperature acquisition module, which is detachably connected to at least one of the battery box or mounting box, and is used to acquire the temperature of the battery cell; and a temperature probe, one end of which is electrically connected to the temperature acquisition module and the other end of which is connected to the battery cell.

[0009] Furthermore, the temperature acquisition module includes: a circuit board; a terminal block, which is disposed on the circuit board and electrically connected to the temperature probe; a sampling channel, which is disposed on the circuit board and one end of the sampling channel is electrically connected to the terminal block; a sampling submodule, which is disposed on the circuit board and one end of the sampling submodule is electrically connected to the other end of the sampling channel; and a power supply circuit, which is disposed on the circuit board and electrically connected to the other end of the sampling submodule and the terminal block.

[0010] Furthermore, the wiring terminals, sampling channels, sampling submodules, and power supply circuits are all located on the same side of the circuit board.

[0011] Furthermore, the temperature acquisition component includes: a heat sink connected to a circuit board, the heat sink being disposed on the first side of the circuit board, and terminals, a sampling channel, a sampling submodule, and a power supply circuit being disposed on the second side of the circuit board, with the first and second sides of the circuit board being disposed opposite to each other.

[0012] Furthermore, the heat sink is made of one of the following materials: aluminum, copper, ceramic, or thermally conductive silicone.

[0013] Furthermore, the temperature acquisition component includes an isolation layer disposed between the temperature acquisition module and the battery cell.

[0014] Furthermore, the insulating layer is one of mica sheets, ceramic fibers, or polyimide films.

[0015] Furthermore, there is a clearance space between the side wall of the battery box and the battery cell, and the temperature acquisition component is set in the clearance space.

[0016] According to another aspect of the present invention, a vehicle is provided, including a battery system, wherein the battery system is the battery system described above.

[0017] By applying the technical solution of this utility model, a slave controller is provided inside the mounting box, and the temperature acquisition component is detachably connected to at least one of the battery box or mounting box. Some of the battery cells acquire temperature through the slave controller, while other battery cells acquire temperature through the temperature acquisition component. This not only achieves comprehensive acquisition of battery cell temperature, but also optimizes the spatial structure of the battery system, solving the problem that the slave control module of the battery management system in the prior art cannot meet the requirements in terms of temperature acquisition point ratio and spatial adaptability. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the structure of a first embodiment of the battery system according to the present invention is shown;

[0020] Figure 2 It shows Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 A schematic diagram of an embodiment of the temperature acquisition module according to the present invention is shown;

[0022] Figure 4 A schematic diagram of the structure of a second embodiment of the battery system according to the present invention is shown;

[0023] Figure 5 A schematic diagram of the structure of a third embodiment of the battery system according to the present invention is shown;

[0024] Figure 6 A circuit connection diagram of a fourth embodiment of the battery system according to the present invention is shown.

[0025] The above figures include the following reference numerals:

[0026] 10. Battery box;

[0027] 11. Battery cells;

[0028] 12. Make way;

[0029] 20. Controller components;

[0030] 21. Mounting box;

[0031] 211. From the controller;

[0032] 30. Temperature acquisition component;

[0033] 31. Temperature acquisition module;

[0034] 310. Circuit board;

[0035] 311. Terminal blocks;

[0036] 312. Sampling channel;

[0037] 313. Sampling Submodule;

[0038] 314. Power supply circuit. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0043] The main objective of this invention is to provide a solution to the problem that the slave control module of the battery management system in the prior art cannot meet the requirements in terms of the ratio of temperature acquisition points and spatial adaptability.

[0044] Combination Figures 1 to 6 As shown in the figure, a battery system is provided in a specific embodiment of this utility model.

[0045] Specifically, the battery system includes a battery box 10, a controller assembly 20, and a temperature acquisition assembly 30. The battery box 10 contains a plurality of battery cells 11. The controller assembly 20 includes a main controller and a mounting box 21. The mounting box 21 contains a slave controller 211, which is electrically connected to the main controller. The temperature acquisition assembly 30 is electrically connected to the main controller and is detachably connected to at least one of the battery box 10 and the mounting box 21. Some of the battery cells 11 are electrically connected to the slave controller 211, and other battery cells 11 are electrically connected to the temperature acquisition assembly 30.

[0046] Combination Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the main controller is responsible for monitoring the status of the entire battery system, including voltage, current, SOC (state of charge), and overall thermal management strategy. The slave controller 211 connects to a portion of the battery cells 11 via aluminum busbars and temperature acquisition probes to collect voltage and temperature data from the cells and exchange data with the main controller via an internal CAN network. The temperature acquisition component 30 collects temperature information from another portion of the battery cells 11 within the battery box. Through an electrical connection with the main controller, it uploads the collected temperature data to the main controller, enabling the main controller to monitor the temperature status of the battery cells 11 in real time. The temperature acquisition component 30 is detachably connected to at least one of the battery box 10 and mounting box 21, allowing for easy replacement of the temperature acquisition module during system maintenance or upgrades without requiring complex adjustments to the entire system.

[0047] Applying the technical solution of this utility model, a slave controller 211 is provided inside the mounting box 21. The temperature acquisition component 30 is detachably connected to at least one of the battery box 10 or the mounting box 21. Some battery cells 11 are connected to the slave controller 211 via connecting aluminum busbars for dual voltage and temperature acquisition, while other battery cells 11 are only connected to the temperature acquisition component 30 via connecting aluminum busbars for temperature monitoring. By integrating the temperature acquisition component 30, it is avoided to install independent temperature sensors and slave controllers on each battery cell, thereby saving hardware costs and installation space within the battery box 10. In addition, the detachable connection reduces maintenance costs and time caused by module replacement. Since the temperature of each battery cell can be accurately monitored, the system can promptly detect abnormal temperature conditions and activate corresponding safety protection measures, such as limiting charging and discharging power and activating the cooling system, effectively preventing safety risks such as battery thermal runaway. This solves the problem that the slave control module of the battery management system in the prior art cannot meet the requirements in terms of temperature acquisition point ratio and space adaptability.

[0048] Furthermore, the temperature acquisition component 30 includes a temperature acquisition module 31 and a temperature probe. The temperature acquisition module 31 is detachably connected to at least one of the battery box 10 or the mounting box 21. The temperature acquisition module 31 is used to acquire the temperature of the battery cell 11. One end of the temperature probe is electrically connected to the temperature acquisition module 31, and the other end of the temperature probe is connected to the battery cell 11.

[0049] In this embodiment, the temperature acquisition component 30 is detachably connected to the battery box 10 or mounting box 21 via screws. The battery cell 11 is connected to the temperature probe via a connecting aluminum busbar. The temperature acquisition module 31 is responsible for receiving temperature signals from the temperature probe, converting these signals into digital data, and uploading them to the main controller or slave controller via an internal communication interface (such as a CAN bus). It integrates a high-precision temperature sensor chip and may also include signal conditioning circuitry, a microprocessor, and a storage unit to achieve temperature data acquisition, processing, and storage.

[0050] Furthermore, the temperature acquisition module 31 includes a circuit board 310, a terminal block 311, a sampling channel 312, a sampling submodule 313, and a power supply circuit 314. The terminal block 311 is disposed on the circuit board 310 and is electrically connected to the temperature probe. The sampling channel 312 is disposed on the circuit board 310, and one end of the sampling channel 312 is electrically connected to the terminal block 311. The sampling submodule 313 is disposed on the circuit board 310, and one end of the sampling submodule 313 is electrically connected to the other end of the sampling channel 312. The power supply circuit 314 is disposed on the circuit board 310, and the power supply circuit 314 is electrically connected to the other end of the sampling submodule 313 and to the terminal block 311.

[0051] Combination Figure 3As shown, terminal block 311 is used for electrical connection to external systems, including the temperature probe and the power supply system within battery box 10. Sampling channel 312 is responsible for transmitting the analog temperature signal acquired by the temperature probe to sampling submodule 313. Sampling submodule 313 is responsible for converting the analog temperature signal received through sampling channel 312 into a digital signal. Sampling submodule 313 may include an analog-to-digital converter (ADC), signal conditioning circuitry, and a microcontroller unit (MCU) for signal amplification, filtering, acquisition, and preliminary processing. The sampling submodule is electrically connected to the other end of the sampling channel, receiving the analog signal from the temperature probe, processing it, and then transmitting the digital signal to the microprocessor on the circuit board for further data processing and communication upload. Power supply loop 314 is responsible for providing a stable power supply to temperature acquisition module 31. The power supply loop typically includes a voltage converter, power regulator, and filter circuitry to convert the supply voltage within the PACK box to the voltage level required by the module, ensuring the stability and purity of the power supply and avoiding the impact of power fluctuations on temperature acquisition accuracy. The power supply circuit is electrically connected to the other end of the sampling submodule to provide the required power to the sampling submodule; at the same time, the power supply circuit is also electrically connected to the wiring terminal to receive power from the battery box 10.

[0052] Combination Figure 6 As shown, in this embodiment, some of the battery cells 11 are connected to the slave controller 211 for dual acquisition of voltage and temperature. When the temperature acquisition module 31 is started, the power circuit 314 receives power from the power supply system of the battery box 10 and supplies power to all components inside the temperature acquisition module 31. The temperature probe establishes an electrical connection with the circuit board 310 through the terminal block 311, transmitting the temperature signal of the battery cell 11 in analog form to the sampling channel 312. The sampling channel 312 transmits the analog signal losslessly to the sampling submodule 313. The sampling submodule 313 amplifies, filters, and performs analog-to-digital conversion on the signal, converting the analog temperature signal into a digital signal. The converted digital signal is transmitted to the microprocessor of the circuit board 310, which is responsible for further data processing, including temperature calibration, data storage, and uploading. Finally, the temperature data is uploaded to the master controller or slave controller through an internal communication interface (such as a CAN bus), completing the entire process of temperature acquisition and transmission.

[0053] Furthermore, the wiring terminal 311, sampling channel 312, sampling submodule 313 and power circuit 314 are all located on the same side of the circuit board 310.

[0054] Combination Figure 3As shown, this layout simplifies internal wiring, reduces physical obstacles in the signal transmission path, thereby improving signal integrity and system reliability. It also allows for better control of electromagnetic compatibility (EMC), reduces signal interference and electromagnetic radiation, and ensures the accuracy of temperature data acquisition and transmission. When replacing or maintaining the temperature acquisition module, engineers can more quickly access and operate critical components such as terminal blocks, sampling channels, and power circuits, effectively saving maintenance time and costs. At the same time, this layout reduces the module's size, contributing to more efficient space utilization within the battery compartment 10.

[0055] Furthermore, the temperature acquisition component 30 includes a heat sink connected to the circuit board 310. The heat sink is disposed on the first side of the circuit board 310, and the wiring terminal 311, sampling channel 312, sampling submodule 313 and power circuit 314 are disposed on the second side of the circuit board 310. The first side and the second side of the circuit board 310 are disposed opposite to each other.

[0056] In this embodiment, the heat sink is disposed on the first side of the circuit board 310, directly contacting the circuit board. The heat sink is typically made of materials with good thermal conductivity, such as aluminum, copper, or copper alloys. These materials can quickly conduct the heat generated during chip operation to the surface of the heat sink, achieving heat dissipation through large-area contact with the air. The layout of the wiring terminals 311, sampling channels 312, sampling submodules 313, and power circuits 314 on the second side of the circuit board needs to be optimized to reduce signal interference, improve the reliability of electrical connections, and ensure the compactness of the entire module. This double-sided layout design effectively utilizes the space of the circuit board, allowing the module to accommodate more functional components within a limited volume, while ensuring sufficient contact area of ​​the heat sink, which is conducive to rapid heat dissipation. The temperature acquisition component 30 can not only accurately acquire the cell temperature, but also effectively control the temperature of the module itself, avoiding performance degradation and failure risks caused by high temperatures, thereby ensuring the safety and stability of the battery system operation.

[0057] Furthermore, the heat sink is made of one of the following materials: aluminum, copper, ceramic, or thermally conductive silicone. Specifically, the heat sink may have, but is not limited to, a structure with a large number of heat dissipation fins to increase the heat dissipation area and improve heat dissipation efficiency.

[0058] In this embodiment, for electronic devices such as temperature acquisition modules that require frequent data processing and may generate a certain amount of heat, aluminum heat sinks can effectively reduce the temperature of circuit board 310, thereby improving the stability and lifespan of the module.

[0059] In this embodiment, copper heat sinks are a better choice for applications requiring extremely high heat dissipation efficiency. For example, in a high-power, high-density battery box 10, copper heat sinks can conduct heat to the outside more quickly, keeping the circuit board 310 at a lower operating temperature.

[0060] In this embodiment, ceramic materials, such as aluminum nitride and beryllium oxide, possess high thermal conductivity and excellent insulation properties. In temperature acquisition modules requiring insulation or operating under high voltage environments, ceramic heat sinks can provide effective thermal management while ensuring circuit safety.

[0061] In this embodiment, although the thermally conductive silicone itself has a low thermal conductivity, as an interface material, it can fill the tiny gap between the circuit board 310 and the heat sink, improving the thermal contact performance between the two and thus enhancing the overall heat dissipation effect. The use of thermally conductive silicone can optimize the design of the heat sink, making it fit the heat source distribution of the circuit board 310 better, while simplifying the assembly process.

[0062] Furthermore, the temperature acquisition component 30 includes an isolation layer disposed between the temperature acquisition module 31 and the battery cell 11. The use of the isolation layer is not limited to the interface between the temperature acquisition module 31 and other components of the battery cell 11, but can also be applied between internal components of the temperature acquisition module 31, such as the isolation between the circuit board 310 and the heat sink, to enhance thermal management performance, or to provide electrical isolation between the module and the battery box 10 and the mounting box 21, thereby improving the safety and stability of the entire battery system.

[0063] In this embodiment, the isolation layer provides electrical isolation to prevent the high voltage or high current of the battery cell 11 during charging and discharging from causing electrical interference or direct damage to the temperature acquisition module 31. Furthermore, the isolation layer also provides physical protection, preventing the vibration or movement of the battery cell 11 within the battery box 10 from affecting the temperature acquisition module 31. The thickness of the isolation layer is between 0.1 mm and 1 mm, with the specific value depending on the maximum operating voltage of the battery cell 11, the sensitivity of the temperature acquisition module 31, and the electrical environment inside the battery box 10. The isolation layer can be, but is not limited to, made in the following forms: insulating tape (such as polyimide tape), insulating gaskets (such as FR4 epoxy resin fiberglass board), polymer insulating materials (such as polytetrafluoroethylene PTFE), and thermal insulating materials (such as ceramics or quartz glass). In applications requiring high thermal insulation performance, these materials can effectively prevent the high temperature of the battery cell from being conducted to the temperature acquisition module while maintaining electrical isolation.

[0064] Furthermore, the insulating layer is one of mica sheets, ceramic fibers, or polyimide films.

[0065] In this embodiment, the use of mica sheets can ensure the stability and safety of the temperature acquisition component under high temperature conditions, and is especially suitable for the high temperature environment that may be encountered inside the battery box 10.

[0066] In this embodiment, ceramic fiber is suitable for applications requiring high thermal insulation and electrical isolation, such as the complex thermal environment inside the battery box 10. It can effectively prevent high-temperature heat from being directly conducted to sensitive electronic components, while reducing electromagnetic interference.

[0067] In this embodiment, a polyimide film is provided in the temperature acquisition module 31 as a flexible isolation layer to protect the sampling channel 312 and the sampling submodule 313 from interference from the external environment, while adapting to the complex layout inside the battery box 10.

[0068] Furthermore, there is a clearance space 12 between the side wall of the battery box 10 and the battery cell 11, and the temperature acquisition component 30 is disposed within the clearance space 12.

[0069] Combination Figure 2 As shown, in this embodiment, since the clearance space 12 is located near the battery cell 11, the temperature acquisition component 30 can more directly receive the heat dissipated by the battery cell 11, which helps to improve the accuracy and response speed of temperature acquisition. Furthermore, this location, close to the side wall of the battery box 10, facilitates rapid heat conduction to the side wall, utilizing the natural heat dissipation capacity of the battery box 10 to further improve the heat dissipation efficiency of the entire battery system. This design reduces the need for an additional cooling system, thereby reducing the overall cost and complexity of the battery box 10.

[0070] In another embodiment of the present invention, a vehicle is also provided, including a battery system, which is the battery system described in the above embodiments.

[0071] Specifically, the battery system includes a battery box 10, a controller assembly 20, and a temperature acquisition assembly 30. The battery box 10 contains a plurality of battery cells 11. The controller assembly 20 includes a main controller and a mounting box 21. The mounting box 21 contains a slave controller 211, which is electrically connected to the main controller. The temperature acquisition assembly 30 is electrically connected to the main controller and is detachably connected to at least one of the battery box 10 and the mounting box 21. Some of the battery cells 11 are electrically connected to the slave controller 211, and other battery cells 11 are electrically connected to the temperature acquisition assembly 30.

[0072] Combination Figure 1As shown, in this embodiment, the main controller is responsible for monitoring the status of the entire battery system, including voltage, current, SOC (state of charge), and overall thermal management strategy. The slave controller 211 is connected to some of the battery cells 11 via temperature acquisition probes to collect voltage and temperature data from the cells and exchange data with the main controller via an internal CAN network. The temperature acquisition component 30 is used to collect temperature information from another portion of the battery cells 11 within the battery box. Through an electrical connection with the main controller, it uploads the collected temperature data to the main controller, enabling the main controller to monitor the temperature status of the battery cells 11 in real time. The temperature acquisition component 30 is detachably connected to at least one of the battery box 10 and the mounting box 21, allowing for easy replacement of the temperature acquisition module during system maintenance or upgrades without requiring complex adjustments to the entire system.

[0073] Applying the technical solution of this utility model, a slave controller 211 is provided inside the mounting box 21. The temperature acquisition component 30 is detachably connected to at least one of the battery box 10 or the mounting box 21. Some of the battery cells 11 are connected to the slave controller 211 for dual acquisition of voltage and temperature, while other battery cells 11 are monitored for temperature only through the temperature acquisition component 30. By integrating the temperature acquisition component 30, it is avoided to install an independent temperature sensor and slave controller on each battery cell, thereby saving hardware costs and installation space within the battery box 10.

[0074] Furthermore, the detachable connection reduces maintenance costs and time associated with module replacement. Because the temperature of each cell can be precisely monitored, the system can promptly detect temperature anomalies and activate corresponding safety protection measures, such as limiting charging and discharging power and activating the cooling system, effectively preventing safety risks such as battery thermal runaway. This solves the problem in existing battery management systems where the slave modules cannot meet the requirements for temperature acquisition point allocation and spatial adaptability. Moreover, by optimizing the design and layout of the temperature acquisition components, a good balance is achieved between the accuracy and real-time performance of temperature monitoring and the safety and cost-effectiveness of the entire system, providing a solid technical guarantee for the efficient and safe operation of vehicle battery systems.

[0075] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0076] 1) By integrating a temperature acquisition module, real-time and comprehensive monitoring of the temperature of each battery cell is achieved. This design significantly improves the accuracy of temperature data, helps to more accurately determine the health status of the battery system, and avoids safety hazards caused by local overheating, such as reducing the risk of thermal runaway.

[0077] 2) Compared to the solution of adding a slave control module to meet the temperature acquisition requirements of all battery cells, the solution of integrating a temperature acquisition module achieves significant savings in hardware costs.

[0078] 3) The temperature acquisition component 30 is compact and can be flexibly installed in the clearance space 12 between the side wall of the battery box 10 and the battery cell 11. This design not only saves valuable space inside the battery box 10, but also optimizes the heat dissipation performance of the temperature acquisition component 30, ensuring the long-term stable operation of the module.

[0079] 4) By placing the temperature acquisition component in the clearance space, close to the battery cell, the heat conduction is accelerated. Combined with the optimized design of the heat sink, the heat dissipation efficiency of the module is significantly improved.

[0080] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0081] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0082] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0083] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery system, characterized in that, include: A battery box (10) is provided with a plurality of battery cells (11); A controller assembly (20) includes a main controller and a mounting box (21). A slave controller (211) is disposed in the mounting box (21) and is electrically connected to the main controller. Temperature acquisition component (30), the temperature acquisition component (30) is electrically connected to the main controller, and the temperature acquisition component (30) is detachably connected to at least one of the battery box (10) and the mounting box (21); One portion of the battery cell (11) is electrically connected to the slave controller (211), and the other portion of the battery cell (11) is electrically connected to the temperature acquisition component (30).

2. The battery system according to claim 1, characterized in that, The temperature acquisition component (30) includes: Temperature acquisition module (31), wherein the temperature acquisition module (31) is detachably connected to at least one of the battery box (10) or the mounting box (21), and the temperature acquisition module (31) is used to acquire the temperature of the battery cell (11); A temperature probe, one end of which is electrically connected to the temperature acquisition module (31), and the other end of which is connected to the battery cell (11).

3. The battery system according to claim 2, characterized in that, The temperature acquisition module (31) includes: Circuit board (310); A terminal block (311) is disposed on the circuit board (310) and is electrically connected to the temperature probe; A sampling channel (312) is disposed on the circuit board (310), and one end of the sampling channel (312) is electrically connected to the terminal block (311). A sampling submodule (313) is disposed on the circuit board (310), and one end of the sampling submodule (313) is electrically connected to the other end of the sampling channel (312). A power circuit (314) is disposed on the circuit board (310). The power circuit (314) is electrically connected to the other end of the sampling submodule (313) and the power circuit (314) is electrically connected to the terminal block (311).

4. The battery system according to claim 3, characterized in that, The wiring terminal (311), the sampling channel (312), the sampling submodule (313), and the power circuit (314) are all located on the same side of the circuit board (310).

5. The battery system according to claim 3, characterized in that, The temperature acquisition component (30) includes: A heat sink is connected to the circuit board (310). The heat sink is disposed on the first side of the circuit board (310). The wiring terminal (311), the sampling channel (312), the sampling submodule (313) and the power circuit (314) are disposed on the second side of the circuit board (310). The first side and the second side of the circuit board (310) are disposed opposite to each other.

6. The battery system according to claim 5, characterized in that, The heat sink is made of one of the following materials: aluminum, copper, ceramic, or thermally conductive silicone.

7. The battery system according to any one of claims 3 to 6, characterized in that, The temperature acquisition component (30) includes: An isolation layer is disposed between the temperature acquisition module (31) and the battery cell (11).

8. The battery system according to claim 7, characterized in that, The isolation layer is one of mica sheet, ceramic fiber or polyimide film.

9. The battery system according to any one of claims 1 to 6 and 8, characterized in that, The side wall of the battery box (10) and the battery cell (11) have a clearance space (12), and the temperature acquisition component (30) is disposed in the clearance space (12).

10. A vehicle comprising a battery system, characterized in that, The battery system is the battery system according to any one of claims 1 to 9.

Images