Power battery, monitoring device thereof and vehicle

Abstract

The utility model discloses a power battery and a monitoring device thereof, and a vehicle, a groove is arranged on an external shell of the power battery, the monitoring device of the power battery comprises a ball, a power source, a power source and a controller, the ball is arranged in the groove; one end of the spring is movably arranged on application equipment of the power battery; and the pressure sensor is fixedly connected with the other end of the spring and is arranged in the groove based on the elastic force of the spring, and the pressure sensor can slide in the groove through the ball and is used for detecting the pressure corresponding to the spring in each position of the pressure sensor in the groove, so that the monitoring device determines the state of the power battery according to the pressure. Therefore, the monitoring cost can be effectively reduced, the system adaptability is enhanced, efficient data processing and early warning are realized, a solid guarantee is provided for safe operation of the battery pack, and the safety and reliability of electric equipment are remarkably improved.

Description

Technical Field

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

[0002] With the continuous advancement of battery technology, electrical devices are placing increasingly stringent requirements on the safety and reliability of battery packs. However, during long-term use, battery packs are prone to safety hazards such as battery bulging and detachment due to factors such as overcharging, harsh external environments, and prolonged periods of inactivity. Current battery monitoring methods have significant shortcomings in addressing these safety issues. For example, a common practice is to install pressure sensors between each battery cell to monitor bulging. While this method can directly detect pressure changes between battery cells, its drawbacks are obvious: it consumes a large number of components, increasing costs, and its functionality is relatively limited, failing to comprehensively monitor other potential safety issues within the battery pack. More seriously, when a large number of batteries bulge simultaneously, the battery pack may expand significantly due to the space occupied by the bulges and pressure sensors, making it impossible to accommodate more monitoring devices. This could ultimately lead to the scrapping of the entire battery pack, causing severe economic losses and safety risks. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, the first objective of this utility model is to provide a monitoring device for power batteries that can effectively reduce monitoring costs, enhance system adaptability, achieve efficient data processing and early warning, provide a solid guarantee for the safe operation of battery packs, and significantly improve the safety and reliability of electrical equipment.

[0004] The second objective of this invention is to propose a power battery.

[0005] The third objective of this utility model is to provide a vehicle.

[0006] To achieve the above objectives, the first aspect of this utility model provides a monitoring device for a power battery, characterized in that a groove is provided on the outer casing of the power battery, and the monitoring device includes: a ball bearing installed in the groove; a spring, one end of which is movably disposed on the application device of the power battery; and a pressure sensor fixedly connected to the other end of the spring and placed in the groove based on the spring's elastic force. The pressure sensor can slide in the groove via the ball bearing, and is used to detect the pressure of the spring corresponding to the pressure sensor at various positions in the groove, so that the monitoring device can determine the state of the power battery based on the pressure.

[0007] The power battery monitoring device proposed in this utility model can effectively reduce monitoring costs, enhance system adaptability, achieve efficient data processing and early warning, provide a solid guarantee for the safe operation of the battery pack, and significantly improve the safety and reliability of electrical equipment.

[0008] In addition, the power battery monitoring device according to the present invention may also include the following additional technical features:

[0009] In some examples, determining the state of the power battery based on the pressure includes: determining that the power battery is in a detachment fault state when the pressure is less than a first preset pressure.

[0010] In some examples, when the pressure is less than the first preset pressure and the power battery is in a replacement state, it is determined that the power battery is not in the detachment fault state.

[0011] In some examples, determining the state of the power battery based on the pressure includes: determining that the power battery is in a bulging fault state when the pressure is greater than a first preset pressure.

[0012] In some examples, the monitoring device further includes an insulating sheet disposed between the spring and the application device of the power battery.

[0013] In some examples, the monitoring device further includes a communication module for reporting the status information of the power battery to a cloud server.

[0014] In some examples, the communication module is also used to obtain the status confirmation information of the power battery obtained by the cloud server based on the status information of the power battery and the operating information of the application device.

[0015] In some examples, the application device is a vehicle.

[0016] To achieve the above objectives, a second aspect of this utility model provides a power battery, including the monitoring device for the power battery described in the aforementioned example of this utility model.

[0017] According to the power battery of the present invention, by adopting the monitoring device of the power battery in the above example of the present invention, the monitoring cost can be effectively reduced, the system adaptability can be enhanced, efficient data processing and early warning can be achieved, a solid guarantee can be provided for the safe operation of the battery pack, and the safety and reliability of the electrical equipment can be significantly improved.

[0018] To achieve the above objectives, a third aspect of this utility model provides a vehicle including the power battery described in the aforementioned example of this utility model.

[0019] According to the vehicle of the present invention, by adopting the power battery in the above example of the present invention, the monitoring cost can be effectively reduced, the system adaptability can be enhanced, efficient data processing and early warning can be achieved, a solid guarantee can be provided for the safe operation of the battery pack, and the safety and reliability of the electrical equipment can be significantly improved.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the cross-sectional structure of the monitoring device for the power battery according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the power battery according to an embodiment of this utility model;

[0023] Figure 3 This is a block diagram of the power battery according to an embodiment of the present utility model;

[0024] Figure 4 This is a block diagram of a vehicle according to an embodiment of the present utility model. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The following description, with reference to the accompanying drawings, describes a power battery monitoring device, a power battery, and a vehicle according to embodiments of the present invention.

[0027] Figure 1 This is a cross-sectional structural diagram of the monitoring device for the power battery according to an embodiment of the present invention.

[0028] Specifically, in some embodiments of this utility model, such as Figure 1As shown, the outer casing of the power battery 100 has a groove 10. The monitoring device 101 of the power battery includes: a ball bearing 11, which is installed in the groove 10; a spring 12, one end of which is movably mounted on the application device 102 of the power battery; and a pressure sensor 13, which is fixedly connected to the other end of the spring 12 and is placed in the groove 10 based on the elastic force of the spring 12. The pressure sensor 13 can move in the groove 10 through the ball bearing 11 to detect the pressure of the spring 12 at various positions of the pressure sensor 13 in the groove 10, so that the monitoring device 101 can determine the state of the power battery 100 based on the pressure.

[0029] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the outer casing of the power battery 100 has grooves 10. The monitoring device 101 of the power battery includes a ball bearing 11, a spring 12, and a pressure sensor 13. The ball bearing 11 can be embedded in the casing of the monitoring device 101 of the power battery 100, thereby allowing the monitoring device 101 to be movably connected to the groove 10 of the outer casing of the power battery 100 via the ball bearing 11. One end of the spring 12 is movably mounted on the application device 102 of the power battery. The application device 102 is preferably a vehicle, i.e., one end of the spring 12 is movably mounted on the application device 102 of the power battery. The monitoring device 101 is mounted on the chassis of the vehicle. The other end of the spring 12 is fixedly connected to the pressure sensor 13. The monitoring device 101 for the power battery is placed within the groove 10 based on the elastic force of the spring 12. Under the gravitational potential energy of the vehicle going uphill and downhill, the monitoring device 101 can move within the groove 10 via the ball bearing 11. The pressure sensor 13 in the monitoring device 101 detects the pressure corresponding to the spring 12 at various positions within the groove 10, thereby allowing the monitoring device 101 to determine the state of the power battery 100 based on the pressure. It should be noted that the state of the power battery 100 includes normal operating state, battery swapping state, detachment fault state, and bulging fault state.

[0030] Furthermore, in some embodiments of this utility model, such as Figure 1 As shown, the state of the power battery 100 is determined based on the pressure, including: when the pressure is less than the first preset pressure, the power battery 100 is determined to be in a detachment fault state.

[0031] Specifically, in this embodiment, when the power battery 100 is in normal operating condition, the force on the spring 12 is within a normal pressure range, i.e., a first preset pressure can be set. If the pressure corresponding to the spring 12 at each position of the pressure sensor 13 within the groove 10 is less than the first preset pressure, it can be determined that the power battery 100 is in a detachment fault state. Upon determining that the power battery 100 is in a detachment fault state, a battery detachment alarm is triggered to notify relevant personnel for handling.

[0032] Furthermore, in some embodiments of this utility model, such as Figure 1 As shown, when the pressure is less than the first preset pressure and the power battery 100 is in the replacement state, it is determined that the power battery 100 is not in the detachment fault state.

[0033] Specifically, in this embodiment, when the power battery 100 is in a normal working state, the force on the spring 12 is within a normal pressure range, that is, a first preset pressure can be set. Once the pressure corresponding to the spring 12 at each position of the detection pressure sensor 13 in the groove 10 is less than the first preset pressure, and the power battery 100 is in a replacement state, it can be determined that the power battery 100 is not in a detachment fault state.

[0034] Furthermore, in some embodiments of this utility model, such as Figure 1 As shown, the state of the power battery 100 is determined based on the pressure, including: when the pressure is greater than a first preset pressure, the power battery 100 is determined to be in a bulging fault state.

[0035] Specifically, in this embodiment, when the power battery 100 is in normal operating condition, the force on the spring 12 is within a normal pressure range, i.e., a first preset pressure can be set. When the pressure corresponding to the spring 12 at various positions of the pressure sensor 13 within the groove 10 is greater than or equal to the first preset pressure, it is determined that the power battery 100 is in a bulging fault state. Upon determining that the power battery 100 is in a bulging fault state, a battery bulging alarm is triggered to notify relevant personnel for handling.

[0036] Furthermore, in some embodiments of this utility model, such as Figure 1 As shown, the monitoring device 101 also includes an insulating sheet 14, which is disposed between the spring 12 and the application device 102 of the power battery 100.

[0037] Specifically, in this embodiment, the application device 102 can preferably be a vehicle, that is, the insulating sheet 14 is disposed between the spring 12 and the chassis of the vehicle. The insulating sheet 14 can effectively prevent the generation of static electricity on the one hand, and greatly reduce the friction caused by direct contact between the vehicle chassis and the spring 12 on the other hand, thereby significantly enhancing the durability of the vehicle hardware facilities and further improving the overall safety of the vehicle during driving.

[0038] Furthermore, in some embodiments of this utility model, such as Figure 1 As shown, the monitoring device 101 also includes a communication module 15, which is used to report the status information of the power battery 100 to the cloud server.

[0039] Specifically, in this embodiment, the monitoring device 101 includes a communication module 15, which is used to report the status information of the power battery 100 to the cloud server. The status information of the power battery 100 includes the vehicle identification code, the device number of the power battery 100, the event type, time, location, the SOC value of the power battery 100, the voltage, current, and temperature of the power battery 100, etc. The communication module 15 establishes a long MQTT communication connection with the cloud server. After receiving the information such as the vehicle identification code, the device number of the power battery 100, the event type, time, location, the SOC value of the power battery 100, the voltage, current, and temperature of the power battery 100, the cloud server will perform comprehensive analysis.

[0040] Furthermore, in some embodiments of this utility model, such as Figure 1 As shown, the communication module 15 is also used to obtain the status confirmation information of the power battery 100 obtained by the cloud server based on the status information of the power battery 100 and the operation information of the application device 102.

[0041] Specifically, in this embodiment, the status information of the power battery 100 includes the vehicle identification number, the device number of the power battery 100, the event type, time, location, the SOC value of the power battery 100, the voltage, current, and temperature of the power battery 100, etc. The application device 102 is a vehicle, and the operating information of the application device 102 includes the vehicle's historical driving time, mileage, and driving environment, etc. After obtaining the status information of the power battery 100 and the operating information of the application device 102, the cloud server will comprehensively analyze the status information of the power battery 100 and the operating information of the application device 102 to obtain the status confirmation information of the power battery 100. The cloud server then sends the status confirmation information of the power battery 100 to the communication module 15. It should be noted that the status confirmation information of the power battery 100 can be in the form of SMS or email. In addition, the cloud server can also send the status confirmation information of the power battery 100 to fault handling personnel.

[0042] Furthermore, in some embodiments of this utility model, such as Figure 1 As shown, the application device 102 is a vehicle.

[0043] In summary, the power battery monitoring device proposed in this utility model can effectively reduce monitoring costs, enhance system adaptability, achieve efficient data processing and early warning, provide a solid guarantee for the safe operation of the battery pack, and significantly improve the safety and reliability of electrical equipment.

[0044] Figure 3 This is a block diagram of the power battery according to an embodiment of the present utility model.

[0045] Specifically, if Figure 3 As shown, the power battery 100 includes a monitoring device 101 for the power battery according to the above embodiments of the present invention.

[0046] According to the power battery of the present invention, by adopting the monitoring device of the power battery in the above example of the present invention, the monitoring cost can be effectively reduced, the system adaptability can be enhanced, efficient data processing and early warning can be achieved, a solid guarantee can be provided for the safe operation of the battery pack, and the safety and reliability of the electrical equipment can be significantly improved.

[0047] Figure 4 This is a block diagram of a vehicle according to an embodiment of the present utility model.

[0048] Specifically, if Figure 4 As shown, the vehicle 1000 includes the power battery 100 of the above embodiments of the present invention.

[0049] According to the vehicle of the present invention, by adopting the power battery in the above example of the present invention, the monitoring cost can be effectively reduced, the system adaptability can be enhanced, efficient data processing and early warning can be achieved, a solid guarantee can be provided for the safe operation of the battery pack, and the safety and reliability of the electrical equipment can be significantly improved.

[0050] Furthermore, other components and functions of the vehicle in this embodiment of the present invention are known to those skilled in the art, and will not be described in detail here to reduce redundancy.

[0051] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0052] It should be understood that the various parts of this utility model can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0053] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A monitoring device for a power battery, characterized in that, The outer casing of the power battery has grooves, and the monitoring device includes: Ball bearings, which are mounted in the groove; A spring, one end of which is movably mounted on the application device of the power battery; A pressure sensor is fixedly connected to the other end of the spring and is placed in the groove based on the spring force. The pressure sensor can slide in the groove through the ball bearing. It is used to detect the pressure of the spring at various positions of the pressure sensor in the groove, so that the monitoring device can determine the state of the power battery based on the pressure.

2. The monitoring device for a power battery according to claim 1, characterized in that, Determining the state of the power battery based on the pressure includes: When the pressure is less than the first preset pressure, the power battery is determined to be in a detachment fault state.

3. The monitoring device for the power battery according to claim 2, characterized in that, When the pressure is less than the first preset pressure and the power battery is in a replacement state, it is determined that the power battery is not in the detachment fault state.

4. The monitoring device for a power battery according to claim 1, characterized in that, Determining the state of the power battery based on the pressure includes: When the pressure is greater than the first preset pressure, the power battery is determined to be in a bulging fault state.

5. The monitoring device for a power battery according to claim 1, characterized in that, The monitoring device also includes: An insulating sheet is disposed between the spring and the application device of the power battery.

6. The monitoring device for a power battery according to claim 1, characterized in that, The monitoring device also includes: A communication module is provided, which is used to report the status information of the power battery to a cloud server.

7. The monitoring device for a power battery according to claim 6, characterized in that, The communication module is also used to obtain the status confirmation information of the power battery obtained by the cloud server based on the status information of the power battery and the operation information of the application device.

8. The monitoring device for a power battery according to any one of claims 1-7, characterized in that, The application device is a vehicle.

9. A power battery, characterized in that, The monitoring device for the power battery as described in any one of claims 1-8.

10. A vehicle, characterized in that, Includes the power battery as described in claim 9.

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