Vehicle-mounted battery protection system and method, vehicle-mounted battery system and vehicle

Abstract

According to the vehicle-mounted battery protection system and method, the vehicle-mounted battery system and the vehicle, in the using process, the sensor and the control module are used for detecting electrical parameters of a vehicle-mounted battery and electric equipment in real time, and when it is detected that the electrical parameters reach preset values, the plasma cutting module is used for rapidly cutting the connecting module, so that the vehicle-mounted battery is protected; therefore, a circuit between the vehicle-mounted battery and the electric equipment is cut off, and the vehicle-mounted battery or the electric equipment is prevented from being damaged. According to the vehicle-mounted battery protection system, the sensor, the control module and the plasma cutting module are combined, so that the vehicle-mounted battery protection system has the advantages of being rapid in response and not prone to being influenced by the environment, and the problems that in the prior art, when a fuse is installed for protecting a vehicle-mounted battery, the vehicle-mounted battery protection system is greatly influenced by the environment, failure is prone to occurring, response delay or abnormal fusing occurs, and the service life of the vehicle-mounted battery is prolonged are solved. And inconvenience is brought to use of the vehicle, and even safety risks are caused.

Description

Technical Field

[0001] The present invention belongs to the technical field of on-vehicle battery protection, and particularly relates to an on-vehicle battery protection system, method, on-vehicle battery system and vehicle. Background Art

[0002] The on-vehicle battery is the core energy storage device of new energy vehicles such as electric vehicles and hybrid vehicles. It is responsible for storing and supplying electrical energy to drive the vehicle or support the electrical equipment carried on it to work. It is equivalent to the "fuel tank" of a traditional fuel vehicle. Its energy storage form is electrical energy, and it has a higher energy conversion efficiency. In the current rapid development of new energy technology, it has a wide range of application scenarios. Since the vehicle and the electrical equipment carried on it sometimes experience overcurrent or overheating during operation, it is necessary to protect the on-vehicle battery to avoid the risk of battery damage causing combustion.

[0003] Installing a fuse is a common on-vehicle battery protection measure and is widely used for its simple structure and low cost. However, since the working principle of the fuse is that when the current flowing through the fuse exceeds the rated value, the fuse wire heats up and melts to cut off the circuit, its performance is greatly affected by temperature and humidity. It may melt prematurely at high temperatures and will also accelerate aging in a humid environment. Therefore, in actual use, problems such as failure, reaction delay or abnormal melting often occur, which brings inconvenience to the use of the vehicle and even poses a safety risk. Summary of the Invention

[0004] In order to solve the technical problems in the background art that when installing a fuse on the on-vehicle battery to protect the on-vehicle battery, it is greatly affected by the environment and is prone to failure, reaction delay or abnormal melting, which brings inconvenience to the use of the vehicle and even poses a safety risk, the present invention provides an on-vehicle battery protection system, method, on-vehicle battery system and vehicle.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] In the first aspect, the present invention provides an on-vehicle battery protection system for an on-vehicle battery, including a plasma cutting module, a connection module, a sensor and a control module;

[0007] The connection module is connected in series to the circuit between the on-vehicle battery and the electrical equipment;

[0008] The sensor and control module is connected to the on-vehicle battery and the electrical equipment for real-time detection of the electrical parameters in the on-vehicle battery and the electrical equipment and comparison of the electrical parameters with preset values;

[0009] The plasma cutting module is installed on the connection module and is electrically connected to the sensor and control module; when the sensor and control module determines that the electrical parameters reach the preset value, the plasma cutting module generates an explosive plasma to cut the connection module and cut off the circuit between the vehicle-mounted battery and the electrical equipment.

[0010] Optionally, the connection module includes a housing and a connecting piece;

[0011] The housing has an accommodation cavity;

[0012] Part of the connecting piece is arranged in the accommodation cavity, and both ends extend out of the housing; the connecting piece is connected in series in the circuit between the vehicle-mounted battery and the electrical equipment;

[0013] The plasma cutting module is arranged in the accommodation cavity and abuts against the connecting piece;

[0014] When the sensor and control module determines that the electrical parameters reach the preset value, the plasma cutting module generates an explosive plasma to cut the connecting piece and cut off the circuit between the vehicle-mounted battery and the electrical equipment.

[0015] Optionally, the plasma cutting module includes a plasma generator, a booster, and a guiding member;

[0016] The guiding member is arranged on the connecting piece, and a guiding channel is arranged inside the guiding member;

[0017] Part of the plasma generator is installed in the guiding channel and is electrically connected to the booster;

[0018] The booster is fixedly installed in the accommodation cavity and is electrically connected to the sensor and control module;

[0019] When the sensor and control module determines that the electrical parameters reach the preset value, the sensor and control module outputs a voltage of 10V to 16V to the booster. After being boosted by the booster, the booster outputs a voltage of 4000V to 6000V to the plasma generator, causing the plasma generator to generate an explosive plasma. The guiding channel in the guiding member is used to guide and concentrate the explosive plasma, so that the explosive plasma cuts the connecting piece and cuts off the circuit between the vehicle-mounted battery and the electrical equipment.

[0020] Optionally, the plasma generator includes a housing, a connecting column, an output electrode, an isolating member, and an explosive plasma generating agent;

[0021] The housing is provided with an output end and a wiring end that are opposite to each other;

[0022] The isolation member is disposed inside the housing and near the terminal, such that there is a cavity between the isolation member and the output terminal;

[0023] The connecting post is disposed on the terminal and penetrates through the isolation member into the cavity;

[0024] The output electrode is disposed in the cavity and is connected to the connecting post;

[0025] The explosive plasma generating agent is filled in the cavity and is in contact with the output electrode;

[0026] The terminal is inserted into the guiding channel.

[0027] Optionally, the plasma cutting module and the sensor and control module are detachably connected.

[0028] Optionally, connection buckles are provided at both ends of the connecting member, and the connection buckles are used for snap connection with the vehicle-mounted battery and the electrical device.

[0029] Optionally, the sensor and control module includes a voltage sensor, a current sensor, a temperature and humidity sensor, and a controller;

[0030] The voltage sensor, the current sensor, and the temperature and humidity sensor are all connected to the vehicle-mounted battery and the electrical device to obtain current parameters, voltage parameters, and temperature and humidity parameters of the vehicle-mounted battery and the electrical device;

[0031] The controller is connected to the voltage sensor, the current sensor, and the temperature and humidity sensor, and is also connected to the booster;

[0032] When the controller determines that any one of the current parameters, voltage parameters, and temperature and humidity parameters reaches a preset value, it outputs a voltage of 10V to 16V to the booster.

[0033] In a second aspect, the present invention further provides a method for protecting a vehicle-mounted battery, which is used for any one of the above vehicle-mounted battery protection systems, and includes: connecting a connection module in series to a circuit between the vehicle-mounted battery and the electrical device;

[0034] Using a sensor and control module to detect electrical parameters in the vehicle-mounted battery and the electrical device in real time, comparing the electrical parameters with preset values, and when the electrical parameters reach the preset values, using a plasma cutting module to cut the connection module to cut off the circuit between the vehicle-mounted battery and the electrical device.

[0035] In a third aspect, the present invention provides a vehicle-mounted battery system, which includes any one of the above vehicle-mounted battery protection systems.

[0036] Fourthly, the present invention provides a vehicle, including the in-vehicle battery system described above.

[0037] The beneficial effects of the present invention are as follows:

[0038] The present invention provides an in-vehicle battery protection system. A connection module is connected in series to the circuit between the in-vehicle battery and the electrical device to turn on the in-vehicle battery and the electrical device for power supply to the electrical device. During use, sensors and a control module are used to detect the electrical parameters of the in-vehicle battery and the electrical device in real time. When the detected electrical parameters reach the preset values, a plasma cutting module is used to quickly cut the connection module, thereby cutting off the circuit between the in-vehicle battery and the electrical device to prevent damage to the in-vehicle battery or the electrical device. In the in-vehicle battery protection system of the present invention, by combining the sensors, the control module and the plasma cutting module, it has the advantages of rapid response and being less affected by the environment, avoiding the technical problems in the prior art that when protecting the in-vehicle battery by installing a fuse, it is greatly affected by the environment, is prone to failure, reaction delay or abnormal fusing, which brings inconvenience to the use of the vehicle and even causes safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic diagram of the in-vehicle battery protection system in the present invention;

[0040] Figure 2 is a schematic diagram of the connection module in the present invention;

[0041] Figure 3 is a schematic diagram of the plasma cutting module in the present invention;

[0042] Figure 4 is a schematic diagram of the plasma generator in the present invention;

[0043] Figure 5 is a schematic diagram of the guide member in the present invention.

[0044] Wherein: 1, plasma cutting module; 11, plasma generator; 111, housing; 112, connecting column; 113, output electrode; 114, spacer; 115, explosive plasma generating agent; 116, bursting diaphragm; 12, step-up transformer; 13, guide member; 131, guide channel; 2, connection module; 21, housing; 22, connecting member; 3, sensor and control module; 4, in-vehicle battery; 5, electrical device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part rather than all of the embodiments of the present invention. The description of at least one exemplary embodiment below is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0048] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are generally based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the scope of protection of the present invention. The orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0049] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the figure is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made.

[0050] It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0051] Embodiment 1

[0052] See Figures 1 to 3 , which shows a schematic diagram of a vehicle-mounted battery protection system provided in the present invention for a vehicle-mounted battery, including a plasma cutting module 1, a connection module 2, and a sensor and control module 3; the connection module 2 is connected in series to the circuit between the vehicle-mounted battery 4 and the electrical device 5; the sensor and control module 3 is connected to the vehicle-mounted battery 4 and the electrical device 5 for detecting in real time the electrical parameters in the vehicle-mounted battery 4 and the electrical device 5 and comparing the electrical parameters with preset values; the plasma cutting module 1 is installed on the connection module 2 and is electrically connected to the sensor and control module 3; when the sensor and control module 3 determines that the electrical parameters reach the preset values, the plasma cutting module 1 generates an explosive plasma to cut the connection module 2 and cut off the circuit between the vehicle-mounted battery 4 and the electrical device 5.

[0053] In this embodiment, the connection module 2 is connected in series to the circuit between the vehicle-mounted battery 4 and the electrical device 5 to conduct the vehicle-mounted battery 4 and the electrical device 5 to supply power to the electrical device 5. During use, the sensor and control module 3 is used to detect the electrical parameters of the vehicle-mounted battery 4 and the electrical device 5 in real time. When the sensor and control module 3 determines that the detected electrical parameters reach the preset value, the plasma cutting module 1 is used to generate explosive plasma to quickly cut the connection module 2, thereby cutting off the circuit between the vehicle-mounted battery 4 and the electrical device 5 and preventing damage to the vehicle-mounted battery 4 or the electrical device 5. The vehicle-mounted battery protection system in the present invention combines the sensor and control module 3 and the plasma cutting module 1, has the advantages of rapid response and being less affected by the environment, and avoids the technical problems in the prior art that when protecting the vehicle-mounted battery by installing a fuse, it is greatly affected by the environment, is prone to failure, reaction delay or abnormal fusing, which brings inconvenience to the use of the vehicle and even poses a safety risk.

[0054] For example, when the vehicle equipped with this vehicle-mounted battery protection system is in use, if the electrical device 5 has a short circuit, or the vehicle-mounted battery 4 has an abnormality resulting in an abnormal increase in voltage, the sensor and control module 3 detects its electrical parameters, such as current, voltage, etc., reaching the preset value. At this time, it can be known that there is a risk of damage to the vehicle-mounted battery 4 and the electrical device 5. The plasma cutting module 1 generates explosive plasma to cut the connection module 2, thereby cutting off the connection circuit between the vehicle-mounted battery 4 and the electrical device 5 and preventing damage to the vehicle-mounted battery 4 and the electrical device 5.

[0055] Optionally, referring to Figure 2 , the connection module 2 in the present invention includes a housing 21 and a connecting member 22; the housing 21 has a receiving cavity; part of the connecting member 22 is disposed in the receiving cavity, and both ends extend out of the housing 21; the connecting member 22 is connected in series to the circuit between the vehicle-mounted battery 4 and the electrical device 5; the plasma cutting module 1 is disposed in the receiving cavity and abuts against the connecting member 22; when the sensor and control module 3 determines that the electrical parameters reach the preset value, the plasma cutting module 1 generates explosive plasma to cut the connecting member 22 to cut off the circuit between the vehicle-mounted battery 4 and the electrical device 5.

[0056] In this embodiment, the connection module 2 includes a housing 21 and a connecting member 22. During use, when the sensor and control module 3 detects and determines that the electrical parameters in the vehicle-mounted battery 4 or the electrical device 5 reach a preset value, the plasma cutting module 1 is utilized to generate an explosive plasma, which cuts the connecting member 22 in the housing 21, thereby cutting off the connection circuit between the vehicle-mounted battery 4 and the electrical device 5 to ensure safety; during use, the housing 21 can protect the plasma cutting module 1 and prevent the external environment from interfering with its performance. At the same time, when the plasma cutting module 1 generates an explosive plasma, it blocks the explosive plasma to prevent the risk of damage to other adjacent components caused by the continuous diffusion of the explosive plasma that penetrates the connecting member 22.

[0057] Furthermore, the present invention uses the plasma cutting module 1 to generate an explosive plasma to cut the connection module 2. The conductivity, heat conductivity, and sensitivity to electromagnetic fields of the explosive plasma can also be utilized to quickly absorb the arc generated between the cross-sections after the connecting member 22 is cut, improving the efficiency of cutting off the circuit, enabling the connection circuit between the vehicle-mounted battery 4 and the electrical device 5 to be cut off within 1 millisecond, and at the same time avoiding the risk of combustion caused by the high temperature of the arc and improving the safety performance.

[0058] Furthermore, the connecting member 22 in this embodiment can be selected as an aluminum plate or other circuit connecting plates well-known to those skilled in the art, and the housing 21 can be selected as polyvinyl chloride or other materials well-known to those skilled in the art.

[0059] Optionally, referring to Figure 2 and Figure 3 , the plasma cutting module 1 in the present invention includes a plasma generator 11, a booster 12, and a guide member 13; the guide member 13 is disposed on the connecting member 22, and a guide channel 131 is provided in the guide member 13; the plasma generator 11 is installed in the guide channel 131 and is electrically connected to the booster 12; the booster 12 is fixedly installed in the accommodation cavity and is electrically connected to the sensor and control module 3; when the sensor and controller module 3 determines that the electrical parameters reach the preset value, the sensor and control module 3 outputs a voltage of 10V to 16V to the booster 12. After being boosted by the booster 12, the booster 12 outputs a voltage of 4000V to 6000V to the plasma generator 11, causing the plasma generator 11 to generate an explosive plasma. The guide channel 131 is used to guide and restrict the explosive plasma and make it energy-concentrated, so that the explosive plasma cuts the connecting member 22 to accurately and quickly cut off the circuit between the vehicle-mounted battery 4 and the electrical device 5.

[0060] In this embodiment, an explosive plasma generating agent is contained in the plasma generator 11. When the sensor and control module 3 determines that the detected electrical parameters of the vehicle battery 4 or the electrical equipment 5 reach the preset value, it can be considered that the vehicle battery 4 or the electrical equipment 5 has a circuit fault and there is a risk of damage. At this time, a 10V to 16V voltage is output to the booster 12, and the 10V to 16V voltage is boosted to a voltage of 4000V to 6000V by the booster 12 to meet the detonation requirements of the explosive plasma generating agent, thereby generating an explosive plasma, and moving along the guide channel 131 until it impacts the connector 22, thereby quickly cutting off the connector 22.

[0061] Further, see Figure 5 The guide channel 131 is from the plasma generator 11 to the connector 22, and its width can be gradually reduced, so as to guide and focus the explosive plasma, so that it forms a high-energy ion flow and quickly cuts off the connector 22. Specifically, the guide channel 131 focuses the dispersed explosive plasma energy on the cutting point to form a high energy density (10 6 W / cm 2 The "cutting cone" as described above instantly heats the local part of the connector 22 to the melting point or even the vaporization point. At the same time, under the energy concentration of the guide channel 131, the speed of the explosive plasma is also increased, which impacts the connector 22, thereby scattering the fragments of the fused connector 22 and completing the cutting.

[0062] Optionally, refer to Figure 4 The plasma generator 11 of the present invention includes a shell 111, a connecting column 112, an output electrode 113, an isolating member 114 and an explosive plasma generating agent 115; the shell 111 is provided with an output terminal and a terminal that are separated from each other; the isolating member 114 is arranged inside the shell 111 and is arranged close to the terminal, so that there is a cavity between the isolating member 114 and the output terminal; the connecting column 112 is arranged on the terminal and penetrates the isolating member 114 into the cavity; the output electrode 113 is arranged in the cavity and is connected to the connecting column 112; the explosive plasma generating agent 115 is filled in the cavity and contacts the output electrode 113; the output terminal is inserted into the guide channel 131.

[0063] In this embodiment, when the sensor and control module 3 detects that the electrical parameters of the vehicle-mounted battery 4 or the electrical device 5 reach the preset value, it outputs a voltage of 10V to 16V to the booster 12. The booster 12 boosts the voltage of 10V to 16V to a voltage of 4000V to 6000V, and transmits it to the explosive plasma generating agent 115 through the connection column 112 and the output electrode 113. The output electrode 113 is used to ionize and initiate the explosive plasma generating agent 115, thereby generating a high-temperature and high-pressure explosive plasma, breaking through the output end and entering the guiding channel 131, and moving along the guiding channel 131, so as to realize the cutting of the connecting member 22.

[0064] Further, after the output end outputs the explosive plasma into the guiding channel 131, the guiding channel 131 focuses the scattered explosive plasma energy on the point to be cut, forming a "cutting cone" with a high energy density (10 6 W / cm 2 or above), instantaneously heating a part of the connecting member 22 to the melting point or even the vaporization point. At the same time, under the energy concentration of the guiding channel 131, the speed of the explosive plasma is also increased, impacting the connecting member 22, so as to disperse the debris of the melted connecting member 22 and complete the cutting.

[0065] Further, the explosive plasma generating agent 115 in this embodiment can be selected as aluminum-magnesium alloy polytetrafluoroethylene or other explosive plasma generating agents well-known to those skilled in the art.

[0066] Further, the output end in this embodiment can adopt a thermoplastic sealing material, so as to be broken through by the high-temperature and high-pressure plasma after the explosive plasma generating agent is ionized and initiated.

[0067] Further, a bursting diaphragm 116 can be arranged between the explosive plasma generating agent 115 and the output end to shape the explosive plasma generating agent 115 during use, preventing it from spreading due to jolting during use and affecting the use effect.

[0068] Exemplarily, when the sensor and control module 3 detects that the electrical parameters of the vehicle-mounted battery 4 or the electrical device 5 reach the preset value, such as the current of the vehicle-mounted battery reaches 30A, it outputs a voltage of 12V to the booster 12. The booster 12 boosts the voltage of 12V to a voltage of 4000V, and transmits it to the explosive plasma generating agent 115 through the connection column 112 and the output electrode 113, causing the explosive plasma generating agent 115 to be ionized and initiated, generating an explosive plasma with a high temperature and high pressure of 5000K, breaking through the output end and cutting the connecting member 22. At the same time, the explosive plasma is used to absorb the arc, quickly disconnecting the connection circuit between the vehicle-mounted battery 4 and the electrical device 5 to achieve the purpose of quickly cutting off the circuit.

[0069] Optionally, the plasma cutting module 1 in the present invention is detachably connected to the sensor and control module 3.

[0070] Optionally, connection buckles are provided at both ends of the connecting member 22 in the present invention, and the connection buckles are used for snap connection with the vehicle-mounted battery 4 and the electrical equipment 5.

[0071] In this embodiment, the plasma cutting module 1 is detachably connected to the sensor and control module 3. During use, when the sensor and control module 3 detects that the electrical parameters of the vehicle-mounted battery 4 or the electrical equipment 5 reach the preset value, the plasma cutter 11 generates explosive plasma and cuts the connecting member 22. After that, the explosive plasma generating agent 115 in the plasma cutter 11 is completely consumed. When the repair of the vehicle-mounted battery 4 or the electrical equipment 5 is completed, to restore the connection circuit between the vehicle-mounted battery 4 and the electrical equipment 5, the connection between the plasma cutting module 1 and the sensor and control module 3 can be disconnected, and the used plasma cutting module 1 and the connection module 2 can be disassembled through the connection buckles, and a new plasma cutting module 1 and connection module 2 can be installed.

[0072] Optionally, the sensor and control module 3 in the present invention includes a voltage sensor, a current sensor, a temperature and humidity sensor, and a controller; the voltage sensor, the current sensor, and the temperature and humidity sensor are all connected to the vehicle-mounted battery 4 and the electrical equipment 5 to obtain the current parameters, voltage parameters, and temperature and humidity parameters of the vehicle-mounted battery 4 and the electrical equipment 5; the controller is connected to the voltage sensor, the current sensor, and the temperature and humidity sensor, and is also connected to the booster 12; when the controller determines that any one of the current parameters, voltage parameters, and temperature and humidity parameters reaches the preset value, it outputs a voltage of 10V to 16V to the booster 12.

[0073] Embodiment 2

[0074] In a second aspect, the present invention also provides a method for protecting a vehicle-mounted battery, which is used for any one of the above vehicle-mounted battery protection systems, and includes: connecting the connection module 2 in series on the circuit between the vehicle-mounted battery 4 and the electrical equipment 5; using the sensor and control module 3 to detect the electrical parameters in the vehicle-mounted battery 4 and the electrical equipment 5 in real time, and comparing the electrical parameters with the preset values. When the electrical parameters reach the preset values, using the plasma cutting module 1 to cut the connection module 2 and cut off the circuit between the vehicle-mounted battery 4 and the electrical equipment 5.

[0075] In this embodiment, a method for protecting a vehicle-mounted battery is provided, which has the effects of rapid response and being not easily interfered by the environment. It should be noted that the method for protecting a vehicle-mounted battery in this embodiment corresponds to the implementation process in Embodiment 1, and will not be elaborated here.

[0076] Embodiment 3

[0077] Thirdly, the present invention further provides a vehicle-mounted battery system, which is any one of the above vehicle-mounted battery protection systems.

[0078] In this embodiment, a vehicle-mounted battery system is provided, which has the advantages of rapid response and being less susceptible to the environment, avoiding the technical problems in the prior art that when protecting the vehicle-mounted battery by installing a fuse, it is greatly affected by the environment, prone to failure, reaction delay or abnormal fusing, bringing inconvenience to users and even causing safety risks. It should be noted that the vehicle-mounted battery protection system in this embodiment corresponds exactly to the vehicle-mounted battery protection system in Embodiment 1, and its usage process and beneficial effects are also the same, so it will not be elaborated here for the sake of brevity.

[0079] Embodiment 4

[0080] Fourthly, the present invention further provides a vehicle, which includes the vehicle-mounted battery system provided above.

[0081] In this embodiment, a vehicle is provided. By installing the vehicle-mounted battery system in Embodiment 3, it has higher safety and reliability, bringing a better safety experience to users. It should be noted that the vehicle-mounted battery protection system in this embodiment corresponds exactly to the vehicle-mounted battery protection system in Embodiment 1, and its usage process and beneficial effects are also the same, so it will not be elaborated here for the sake of brevity.

[0082] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0083] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle-mounted battery protection system for a vehicle-mounted battery (4), characterized in that, It includes a plasma cutting module (1), a connection module (2), and a sensor and control module (3); The connection module (2) is connected in series to the circuit between the vehicle-mounted battery (4) and the electrical equipment (5); The sensor and control module (3) is connected to the vehicle-mounted battery (4) and the electrical equipment (5), and is used for detecting in real time the electrical parameters in the vehicle-mounted battery (4) and the electrical equipment (5), and comparing the electrical parameters with preset values; The plasma cutting module (1) is installed on the connection module (2) and is electrically connected to the sensor and control module (3); when the sensor and control module (3) determines that the electrical parameters reach the preset values, the plasma cutting module (1) generates explosive plasma to cut the connection module (2) and cut off the circuit between the vehicle-mounted battery (4) and the electrical equipment (5).

2. The in-vehicle battery protection system according to claim 1, characterized in that, The connection module (2) includes a housing (21) and a connecting piece (22); The housing (21) has an accommodation cavity; Part of the connecting piece (22) is arranged in the accommodation cavity, and both ends extend out of the housing (21); the connecting piece (22) is connected in series to the circuit between the vehicle-mounted battery (4) and the electrical equipment (5); The plasma cutting module (1) is arranged in the accommodation cavity and abuts against the connecting piece (22); When the sensor and control module (3) determines that the electrical parameters reach the preset values, the plasma cutting module (1) generates explosive plasma to cut the connecting piece (22) and cut off the circuit between the vehicle-mounted battery (4) and the electrical equipment (5).

3. The vehicle-mounted battery protection system according to claim 2, wherein The plasma cutting module (1) includes a plasma generator (11), a booster (12), and a guiding member (13); The guiding member (13) is arranged on the connecting piece (22), and a guiding channel (131) is arranged inside the guiding member (13); Part of the plasma generator (11) is installed in the guiding channel (131) and is electrically connected to the booster (12); The booster (12) is fixedly installed in the accommodation cavity and is electrically connected to the sensor and control module (3); When the sensor and control module (3) determines that the electrical parameters reach the preset values, the sensor and control module (3) outputs a voltage of 10V to 16V to the booster (12). After being boosted by the booster (12), the booster (12) outputs a voltage of 4000V to 6000V to the plasma generator (11), so that the plasma generator (11) generates explosive plasma. The guiding channel (131) in the guiding member (13) is used to guide and concentrate the explosive plasma, so that the explosive plasma cuts the connecting piece (22) and cuts off the circuit between the vehicle-mounted battery (4) and the electrical equipment (5).

4. The in-vehicle battery protection system according to claim 3, characterized in that, The plasma generator (11) includes a housing (111), a connecting post (112), an output electrode (113), a separator (114), and an explosive plasma generating agent (115); The housing (111) is provided with an output end and a wiring end facing away from each other; The separator (114) is arranged inside the housing (111) and is close to the wiring end, so that there is a cavity between the separator (114) and the output end; The connecting post (112) is arranged on the wiring end and penetrates through the separator (114) into the cavity; The output electrode (113) is arranged in the cavity and is connected to the connecting post (112); The explosive plasma generating agent (115) is filled in the cavity and is in contact with the output electrode (113); The output end is inserted into the guiding channel (131).

5. The on-vehicle battery protection system according to claim 2, characterized in that The plasma cutting module (1) and the sensor and control module (3) are detachably connected.

6. The on-vehicle battery protection system according to claim 2, characterized in that, Both ends of the connecting member (22) are provided with connecting bayonets for snap-connecting with the vehicle-mounted battery (4) and the electrical device (5).

7. The in-vehicle battery protection system according to claim 3, characterized in that, The sensor and control module (3) includes a voltage sensor, a current sensor, a temperature and humidity sensor, and a controller; The voltage sensor, the current sensor, and the temperature and humidity sensor are all connected to the vehicle-mounted battery (4) and the electrical device (5) to obtain the current parameters, voltage parameters, and temperature and humidity parameters of the vehicle-mounted battery (4) and the electrical device (5); The controller is connected to the voltage sensor, the current sensor, and the temperature and humidity sensor, and is also connected to the booster (12); When the controller determines that any one of the current parameters, voltage parameters, and temperature and humidity parameters reaches a preset value, it outputs a voltage of 10V to 16V to the booster (12).

8. A vehicle-mounted battery protection method for the vehicle-mounted battery protection system according to any one of claims 1 to 7, characterized in that, Including: Connecting the connection module (2) in series to the circuit between the vehicle-mounted battery (4) and the electrical device (5); Using the sensor and control module (3) to detect the electrical parameters in the vehicle-mounted battery (4) and the electrical device (5) in real time, comparing the electrical parameters with the preset values, and when the electrical parameters reach the preset values, using the plasma cutting module (1) to cut the connection module (2) to cut off the circuit between the vehicle-mounted battery (4) and the electrical device (5).

9. A vehicle-mounted battery system, characterized in that, The vehicle-mounted battery system includes the vehicle-mounted battery protection system according to any one of claims 1 to 7.

10. A vehicle, characterized in that, The vehicle includes the vehicle-mounted battery system according to claim 9.

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