Fuse safety reminder method, device, fuse, power battery and vehicle

Abstract

The present invention provides a safety prompt method and device for a fuse, a fuse, a power battery, and a vehicle. The safety prompt method includes: obtaining status information of the fuse body detected by a status detection device; when the status information meets a preset warning condition, outputting a prompt message and incrementing the warning count by one; and when the warning count exceeds the preset count, outputting a warning message. The present invention detects and determines the status information of the fuse body, and when it is determined that the operating condition will affect the fuse, it provides a prompt to the user. When it is determined that the service life limit has been reached, resulting in a safety risk, a timely warning is issued, which is conducive to achieving safety monitoring of the fuse and avoiding unexpected melting of the fuse and the resulting safety accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic components, and in particular to a safety prompt method and device for a fuse, a fuse, a power battery and a vehicle. Background Art

[0002] As a long-term load device in the power battery pack of electric vehicles, high-voltage DC fuses are prone to fatigue melting due to fatigue or high current shocks during use in some rapid acceleration and deceleration scenarios.

[0003] The power batteries in existing electric vehicles often have high-voltage circuits exceeding 400V. These battery systems require high-voltage DC fuses to prevent transient high currents caused by battery failure or short circuits, which could lead to battery safety accidents. However, HVDC fuses are often used during normal battery pack operation, such as during rapid acceleration or high-speed driving. The current trend in electric vehicles is toward larger motors and higher power, with some even using four-wheel drive. These electric vehicles typically draw relatively low currents during normal operation, but under rapid acceleration / deceleration, the transient current can reach over 1000A. This surge in current can inadvertently damage the HVDC fuses, a condition that is imperceptible to conventional HVDC fuses. In such scenarios, the damage to the fuse life caused by normal driving accumulates, potentially causing the fuse to blow unexpectedly during normal vehicle operation, leading to stalling and power interruption, making accidents highly likely. Summary of the Invention

[0004] The technical purpose to be achieved by the embodiments of the present invention is to provide a safety prompt method, device, fuse, power battery and vehicle for a fuse, so as to solve the problem that the current fuse cannot sense the damage caused by instantaneous high current, and the safety hazard caused by the unexpected melting of the fuse to the equipment.

[0005] To solve the above technical problems, an embodiment of the present invention provides a safety prompt method for a fuse, wherein a control device includes:

[0006] Acquiring status information of the fuse body detected by the status detection device;

[0007] When the status information meets the preset warning conditions, a prompt message is output and the number of warnings is increased by one;

[0008] When the number of warnings is greater than the preset number, a warning message is output.

[0009] Preferably, in the safety prompt method as described above, the status information of the fuse body includes: the current and temperature of the fuse body;

[0010] The step of obtaining the status information of the fuse body detected by the status detection device includes:

[0011] Acquiring the current detected by the current detection device electrically connected to the fuse body in the state detection device;

[0012] The temperature detected by the temperature sensor in the state detection device that is in contact with the fuse body is obtained.

[0013] Specifically, the safety prompt method as described above further includes:

[0014] When the current is greater than a preset current and the temperature is greater than a preset temperature, it is determined that the status information meets a preset warning condition.

[0015] Preferably, in the above-mentioned safety prompt method, after obtaining the status information of the fuse body detected by the status detection device, the method further includes:

[0016] When the current is greater than the preset current and the temperature is less than or equal to the preset temperature, a prompt message is output and the number of warnings remains unchanged;

[0017] or,

[0018] When the temperature is higher than the preset temperature and the current is lower than or equal to the preset current, a prompt message is output and the number of warnings remains unchanged.

[0019] Furthermore, in the above-mentioned safety prompt method, after obtaining the status information of the fuse body detected by the status detection device, the method further includes:

[0020] When the temperature is greater than a preset temperature, a control signal is sent to the cooling control circuit, and the control signal is used to control the cooling control circuit including the temperature adjustment device to be turned on.

[0021] Another preferred embodiment of the present invention further provides a control device, comprising:

[0022] An acquisition module, used to acquire status information of the fuse body detected by the status detection device;

[0023] The first processing module is used to output a prompt message and increase the number of warning times by one when the status information meets the preset warning condition;

[0024] The second processing module is used to output warning information when the number of warnings is greater than a preset number.

[0025] Preferably, in the control device as described above, the status information of the fuse body includes: the current and temperature of the fuse body;

[0026] The acquisition module includes:

[0027] a first acquiring unit, configured to acquire a current detected by a current detecting device electrically connected to the fuse body in the state detecting device;

[0028] The second acquiring unit is configured to acquire the temperature detected by a temperature sensor in the state detecting device that is in contact with the fuse body.

[0029] Specifically, the control device as described above further includes:

[0030] The third processing module is configured to determine that the status information satisfies a preset warning condition when the current is greater than a preset current and the temperature is greater than a preset temperature.

[0031] Preferably, the control device as described above further includes:

[0032] The fourth processing module is used to output a prompt message when the current is greater than a preset current and the temperature is less than or equal to a preset temperature, and the number of warnings remains unchanged;

[0033] or,

[0034] The fifth processing module is used to output a prompt message when the temperature is greater than the preset temperature and the current is less than or equal to the preset current, and the number of warnings remains unchanged.

[0035] Furthermore, the control device as described above further includes:

[0036] The sixth processing module is used to send a control signal to the cooling control circuit when the temperature is greater than a preset temperature, and the control signal is used to control the cooling control circuit including the temperature adjustment device to be turned on.

[0037] Another preferred embodiment of the present invention further provides a fuse, comprising: a fuse body, a state detection device, and the control device as described above;

[0038] The state detection device is connected to the fuse body and is data-connected to the control device, and is used to detect the state information of the fuse body and send it to the control device;

[0039] After the control device obtains the status information, when the status information meets the preset warning condition, it outputs a prompt message and increases the number of warnings by one; when the number of warnings is greater than the preset number, it outputs a warning message.

[0040] Specifically, for the fuse as described above, the state detection device includes:

[0041] A current detection device electrically connected to the fuse body and a temperature sensor contact-connected to the fuse body.

[0042] Furthermore, in the fuse as described above, the temperature sensor is sleeved on the outer surface of the fuse body and is in contact with the fuse body.

[0043] Preferably, the fuse as described above further comprises: a cooling control circuit communicatively connected to the control device;

[0044] The temperature regulating device in the cooling control circuit is in contact with the fuse body.

[0045] Specifically, for the fuse as described above, the cooling control circuit further includes: a control switch, wherein the control end of the control switch is communicatively connected to the control device.

[0046] Another preferred embodiment of the present invention further provides a power battery, comprising: a battery management system and the fuse as described above, wherein a control device of the fuse is communicatively connected to the battery management system.

[0047] Another preferred embodiment of the present invention also provides a vehicle, comprising: a warning device, a controller local area network and the power battery as described above, wherein the control device or battery management system in the power battery is communicatively connected to the warning device via the controller local area network.

[0048] Compared with the prior art, the fuse safety prompt method, device, fuse, power battery, and vehicle provided by the embodiments of the present invention have at least the following beneficial effects:

[0049] By detecting and judging the status information of the fuse body, when it is determined that the working conditions will affect the fuse, the user will be prompted, and when it is determined that the service life limit has been reached and there is a safety risk, a timely warning will be issued, which is conducive to the safety monitoring of the fuse, avoiding unexpected melting of the fuse, and the resulting safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Schematic diagram of the flow of the safety prompt method for the fuse in the present invention;

[0051] Figure 2 Schematic diagram of the structure of the control device in the present invention;

[0052] Figure 3 Schematic diagram of the structure of the fuse in the present invention;

[0053] Figure 4 It is a structural schematic diagram of the vehicle in the present invention.

[0054] [Description of Reference Numerals]

[0055] 201. Acquisition module; 202. First processing module; 203. Second processing module; 301. Fuse body; 302. Status detection device; 3021. Current detection device; 3022. Temperature detection device; 303. Control device; 304. Cooling control circuit; 3041. Temperature adjustment device; 3042. Control switch; 401. Power battery; 4011. Battery management system; 4012. Fuse; 4013. Controller area network; 402. Warning device. DETAILED DESCRIPTION

[0056] To make the technical problems, technical solutions, and advantages to be solved by the present invention more apparent, a detailed description will be given below with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided solely to facilitate a comprehensive understanding of the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for the sake of clarity and brevity, descriptions of known functions and configurations have been omitted.

[0057] It should be understood that references throughout this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0058] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0059] It should be understood that the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0060] In the embodiments provided herein, it should be understood that "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A; B can also be determined based on A and / or other information.

[0061] See also Figure 1 A preferred embodiment of the present invention provides a safety prompt method for a fuse, comprising:

[0062] Step S101, obtaining status information of the fuse body detected by a status detection device;

[0063] Step S102: When the status information meets the preset warning condition, a prompt message is output and the number of warnings is increased by one;

[0064] Step S103: When the number of warnings is greater than a preset number, output warning information.

[0065] In a specific embodiment of the present invention, a safety prompt method for a fuse is provided, wherein specifically, when a control device is in use, it obtains status information of the fuse body detected by a status detection device, and then judges the status information based on pre-stored preset warning conditions. When the status information meets the preset warning conditions, a prompt message is output to remind the user that continuing the current operating condition will damage the fuse, facilitating timely adjustment by the user; at the same time, the number of warnings is incremented by one; when the number of warnings reaches or exceeds a pre-calibrated preset number, i.e., a safety threshold, a warning message is output to remind the user that the current fuse has reached its life limit, prompting the user to replace it as soon as possible, thereby avoiding safety hazards and preventing safety accidents caused by unexpected fuse blowing during use. The accumulated number of times is used as a criterion for determining whether the life limit has been reached, facilitating judgment and calculation while ensuring accuracy.

[0066] In summary, the fuse safety prompt method provided by the embodiment of the present invention detects and judges the status information of the fuse body. When it is determined that the operating condition will affect the fuse, it prompts the user. When it is determined that the service life limit has been reached and a safety risk exists, a timely warning is issued. This is conducive to achieving safety monitoring of the fuse, avoiding unexpected melting of the fuse, and the resulting safety accidents. It should be noted that when the safety prompt method is applied to vehicles, especially electric vehicles, it can effectively avoid the vehicle stalling and power interruption caused by unexpected melting of the fuse during normal driving, as well as the resulting safety risks.

[0067] Preferably, in the safety prompt method as described above, the status information of the fuse body includes: the current and temperature of the fuse body;

[0068] The step of obtaining the status information of the fuse body detected by the status detection device includes:

[0069] Acquiring the current detected by the current detection device electrically connected to the fuse body in the state detection device;

[0070] The temperature detected by the temperature sensor in the state detection device that is in contact with the fuse body is obtained.

[0071] In a preferred embodiment of the present invention, in order to facilitate technical personnel to understand the above method, examples are given here to illustrate the types of information specifically included in the status information of the fuse body. Among them, the status information may include: the temperature of the fuse body and the current passing through the fuse body. When the current and temperature are used as the status information of the fuse body, the step of obtaining the status information of the fuse body detected by the status detection device can be specifically as follows: obtaining the current detected by the current detection device electrically connected to the fuse body in the status detection device, wherein the current detection device is connected in series with the fuse body; and obtaining the temperature detected by the temperature sensor in the status detection device that is in contact with the fuse body, wherein the temperature sensor is preferably mounted on the outside of the fuse body and in contact with the fuse body, so as to facilitate accurate acquisition of the temperature of the fuse body.

[0072] Specifically, the safety prompt method as described above further includes:

[0073] When the current is greater than a preset current and the temperature is greater than a preset temperature, it is determined that the status information meets a preset warning condition.

[0074] In a specific embodiment of the present invention, taking temperature and current as an example, when judging whether the status information meets the preset warning condition, the obtained temperature is compared with the preset temperature in the preset warning condition to obtain a temperature judgment result, and at the same time, the obtained current is compared with the preset current in the preset warning condition to obtain a current judgment result; when the temperature judgment result is that the temperature is greater than the preset temperature, and the current judgment result is that the current is greater than the preset current, it indicates that the current fuse body is subjected to a current shock and the current shock has an impact on the service life of the fuse body, so it is judged that the status information at this time meets the preset warning condition to ensure the accuracy of the judgment.

[0075] Preferably, in the above-mentioned safety prompt method, after obtaining the status information of the fuse body detected by the status detection device, the method further includes:

[0076] When the current is greater than the preset current and the temperature is less than or equal to the preset temperature, a prompt message is output and the number of warnings remains unchanged;

[0077] or,

[0078] When the temperature is higher than the preset temperature and the current is lower than or equal to the preset current, a prompt message is output and the number of warnings remains unchanged.

[0079] In another specific embodiment of the present invention, based on the above-mentioned judgment criteria, if only the current is greater than the preset current, although a current shock is generated on the fuse body, the impact of this current shock on the fuse body is limited in the short term and will not significantly affect its service life. In this case, only the above-mentioned prompt message is output to remind the user that continued operation will damage the fuse, facilitating timely adjustment. Similarly, if only the temperature is greater than the preset temperature, although the fuse body will be affected, the impact is limited in the short term and will not significantly affect its service life. In this case, only the above-mentioned prompt message is output to remind the user that continued operation will damage the fuse, facilitating timely adjustment.

[0080] Furthermore, in the above-mentioned safety prompt method, after obtaining the status information of the fuse body detected by the status detection device, the method further includes:

[0081] When the temperature is greater than a preset temperature, a control signal is sent to the cooling control circuit, and the control signal is used to control the cooling control circuit including the temperature adjustment device to be turned on.

[0082] In another preferred embodiment of the present invention, after obtaining the status information of the fuse body, if it is determined that the obtained temperature is greater than the preset temperature, it indicates that the current temperature of the fuse body is high. At this time, a control signal is sent to the cooling control circuit to turn it on to power the temperature adjustment device, and then the temperature adjustment device is used to cool the fuse body to avoid the fuse body from being at high temperature (temperature greater than the preset temperature) for a long time, which affects the service life of the fuse body.

[0083] Specifically, the cooling control circuit further includes a control switch, the control signal being used to control the closing of the control switch. The control switch is preferably an electromagnetic relay. To improve the efficiency of temperature regulation, the temperature regulating device is preferably also disposed outside the fuse body and in contact with the fuse body. More specifically, since the temperature regulating device in this embodiment is only used to cool the fuse body, the temperature regulating device can be a refrigerator with only a cooling function.

[0084] See also Figure 2 Another preferred embodiment of the present invention further provides a control device, comprising:

[0085] An acquisition module 201 is used to acquire status information of the fuse body detected by a status detection device;

[0086] The first processing module 202 is configured to output a prompt message and increase the number of warnings by one when the status information meets a preset warning condition;

[0087] The second processing module 203 is configured to output warning information when the number of warnings is greater than a preset number.

[0088] Preferably, in the control device as described above, the status information of the fuse body includes: the current and temperature of the fuse body;

[0089] The acquisition module 201 includes:

[0090] a first acquiring unit, configured to acquire a current detected by a current detecting device electrically connected to the fuse body in the state detecting device;

[0091] The second acquiring unit is configured to acquire the temperature detected by a temperature sensor in the state detecting device that is in contact with the fuse body.

[0092] Specifically, the control device as described above further includes:

[0093] The third processing module is configured to determine that the status information satisfies a preset warning condition when the current is greater than a preset current and the temperature is greater than a preset temperature.

[0094] Preferably, the control device as described above further includes:

[0095] The fourth processing module is used to output a prompt message when the current is greater than a preset current and the temperature is less than or equal to a preset temperature, and the number of warnings remains unchanged;

[0096] or,

[0097] The fifth processing module is used to output a prompt message when the temperature is greater than the preset temperature and the current is less than or equal to the preset current, and the number of warnings remains unchanged.

[0098] Furthermore, the control device as described above further includes:

[0099] The sixth processing module is used to send a control signal to the cooling control circuit when the temperature is greater than a preset temperature, and the control signal is used to control the cooling control circuit including the temperature adjustment device to be turned on.

[0100] The embodiment of the control device of the present invention is a system corresponding to the embodiment of the safety prompt method of the fuse. All implementation means in the above method embodiment are applicable to the embodiment of the control device and can achieve the same technical effect.

[0101] See also Figure 3 , another preferred embodiment of the present invention further provides a fuse, comprising: a fuse body 301, a state detection device 302 and the control device 303 as described above;

[0102] The state detection device 302 is connected to the fuse body 301 and is data-connected to the control device 303, and is used to detect the state information of the fuse body 301 and send it to the control device 303;

[0103] After the control device 303 obtains the status information, when the status information meets the preset warning condition, it outputs a prompt message and increases the number of warnings by one; when the number of warnings is greater than the preset number, it outputs a warning message.

[0104] In a preferred embodiment of the present invention, a fuse is provided, which includes: a fuse body 301, a status detection device 302 and the controller as described above, wherein the status detection device 302 is connected to the fuse body 301 and is data-connected to the control device 303, and is used to detect status information of the fuse body 301, and send the status information to the control device 303, and / or store the status information, and send the status information to the control device 303 after receiving an information acquisition signal from the control device 303. After receiving the status information, the control device 303 will judge the status information based on preset warning conditions. If it is determined that the status information meets the preset warning conditions, it will output a prompt message to inform the user that continuing the current operating condition will damage the fuse, facilitating timely adjustment by the user. At the same time, the number of warnings is increased by one. When the number of warnings reaches or exceeds a pre-calibrated preset number, i.e., a safety threshold, a warning message is output to remind the user that the current fuse has reached its life limit, prompting the user to replace it as soon as possible, thereby avoiding safety hazards and preventing safety accidents caused by unexpected fuse blowing during use. The use of the accumulated number of times as a criterion for determining whether the life limit has been reached facilitates judgment and calculation while ensuring accuracy.

[0105] In summary, the fuse provided in the embodiment of the present invention detects and determines the status information of the fuse body 301 by adding a status detection device 302 and a control device 303. When it is determined that the operating condition will affect the fuse, a prompt is given to the user. When it is determined that the service life limit has been reached and a safety risk exists, a warning is given in a timely manner. This is conducive to achieving safe monitoring of the fuse, avoiding unexpected melting of the fuse, and the resulting safety accidents. It should be noted that when the safety prompt method is applied to vehicles, especially electric vehicles, it can effectively avoid the vehicle stalling and power interruption caused by unexpected melting of the fuse during normal driving, as well as the resulting safety risks.

[0106] Specifically, for the fuse as described above, the state detection device 302 includes:

[0107] A current detection device 3021 electrically connected to the fuse body 301 and a temperature sensor 3022 contact-connected to the fuse body 301 .

[0108] In a specific embodiment of the present invention, the specific structure of the state detection device 302 is illustrated by way of example, wherein the state detection device 302 may include: a current detection device 3021 electrically connected to the fuse body 301, for detecting the current flowing through the fuse body 301; and a temperature sensor 3022 in contact with the fuse body 301, for detecting the temperature of the fuse body 301.

[0109] Furthermore, in the fuse as described above, the temperature sensor 3022 is sleeved on the outer surface of the fuse body 301 and is in contact with and connected to the fuse body 301 .

[0110] In a specific embodiment of the present invention, when the status detection device 302 includes the above-mentioned temperature sensor 3022, and to facilitate the installation of the temperature sensor 3022 and ensure the accuracy of the detected temperature, the temperature sensor 3022 is set to a ring structure and is sleeved on the outer surface of the fuse body 301, and is in contact and connected with the fuse body 301.

[0111] Preferably, the fuse as described above further comprises: a cooling control circuit 304 in communication with the control device 303;

[0112] The temperature adjustment device 3041 in the cooling control circuit 304 is in contact with the fuse body 301 .

[0113] In another preferred embodiment of the present invention, to further ensure the service life of the fuse, a cooling control circuit 304 is provided that is communicatively connected to the control device 303. A temperature adjustment device 3041 in the cooling control circuit 304 is in contact with the fuse body 301. When the control device 303 determines, based on the acquired status information, that the inductor body needs to be cooled, it sends a control signal to the cooling control circuit 304, turning on the cooling control circuit 304. The temperature adjustment device 3041 in the cooling control circuit 304 then cools the fuse body 301. This prevents the fuse body 301 from being exposed to high temperatures (temperatures greater than a preset temperature) for extended periods of time, which could affect the service life of the fuse body 301.

[0114] Specifically, to improve the efficiency of temperature regulation, the temperature regulating device 3041 is preferably also sleeved on the outer surface of the fuse body 301 and is in contact with the fuse body 301. More specifically, since the temperature regulating device in this solution is only used to cool the fuse body 301, the temperature regulating device can be a refrigerator with only a cooling function.

[0115] Specifically, as for the fuse described above, the cooling control circuit 304 further includes: a control switch 3042 , and a control end of the control switch 3042 is communicatively connected to the control device 303 .

[0116] Furthermore, the cooling circuit is provided with a control switch 3042, which is turned on after receiving a control signal from the control device 303, to supply power to the temperature adjustment device 3041, thereby cooling the fuse body 301. The control switch 3042 is preferably an electromagnetic relay, but can also be a switch tube or other structure.

[0117] See also Figure 4 Another preferred embodiment of the present invention further provides a power battery 401 , comprising: a fuse 4011 and the fuse 4012 described above, wherein the control device of the fuse 4012 is communicatively connected to the fuse 4011 .

[0118] In another preferred embodiment of the present invention, a power battery 401 is provided, comprising a fuse 4011 and the aforementioned fuse 4012, wherein a control device of the fuse 4012 is communicatively connected to the fuse 4011 and can transmit status information detected by the status detection device, as well as prompt information, warning frequency control information, and warning information obtained by the control device after determining the status information, to the fuse 4011 for storage and / or processing, thereby facilitating subsequent data retrieval. Furthermore, when the fuse 4011 processes the status information and warning frequency control information, it feeds back the processing results to the control device for reference. Specifically, the control device performs control based on the processing results of the control device itself and the processing structure fed back by the fuse 4011, thereby achieving redundant control and facilitating control accuracy. The communication connection between the control device and the fuse 4011 is preferably connected via a controller area network 4013.

[0119] See also Figure 4 Another preferred embodiment of the present invention further provides a vehicle, comprising: a warning device 402, a controller local area network 4013, and the power battery 401 as described above, wherein the control device or fuse 4011 in the power battery 401 is communicatively connected to the warning device 402 via the controller local area network 4013.

[0120] In another preferred embodiment of the present invention, a vehicle is provided, specifically an electric vehicle or a hybrid vehicle, comprising at least: a warning device 402, a controller local area network 4013, and the power battery 401 as described above, wherein the control device and / or fuse 4011 in the power battery 401 is communicatively connected to the warning device 402 via the controller local area network 4013, and prompt information and warning information are sent to the warning device 402 via the controller local area network 4013, so that the warning device 402 prompts the driver through at least one of text, light, vibration, and sound according to the prompt information and warning information, so as to facilitate the driver to obtain the prompt information and warning information in a timely manner, improve the user's awareness of the vehicle's seat belts, and perform corresponding processing to avoid the vehicle stalling and power interruption caused by unexpected melting of the fuse 4012 during normal driving, and the resulting safety risks.

[0121] In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0122] It should also be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprises," or any other variations thereof are intended to cover non-exclusive inclusion.

[0123] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A safety reminder method for a fuse, characterized in that: include: Acquiring state information of the fuse body detected by the state detection device, wherein the state information of the fuse body includes: current and temperature of the fuse body; When the status information meets the preset warning condition, a prompt message is output and the number of warnings is increased by one; When the number of warnings is greater than a preset number, a warning message is output, which is used to remind the user that the current fuse has reached its life limit; When the current is greater than a preset current and the temperature is greater than a preset temperature, determining that the status information meets the preset warning condition; When the current is greater than the preset current and the temperature is less than or equal to the preset temperature, the prompt information is output and the number of warnings remains unchanged; or, When the temperature is greater than the preset temperature and the current is less than or equal to the preset current, the prompt information is output and the number of warnings remains unchanged; After acquiring the status information of the fuse body detected by the status detection device, the method further includes: When the temperature is greater than a preset temperature, a control signal is sent to a cooling control circuit, wherein the control signal is used to control the cooling control circuit including a temperature regulating device to be turned on, and the temperature regulating device is in contact with the fuse body.

2. The safety prompt method according to claim 1, characterized in that: The step of obtaining the status information of the fuse body detected by the status detection device includes: obtaining a current detected by a current detection device in the state detection device that is electrically connected to the fuse body; The temperature detected by the temperature sensor in the state detection device that is in contact with the fuse body is obtained.

3. A control device, applied to the safety prompt method of the fuse according to claim 1 or 2, characterized in that: include: An acquisition module, configured to acquire status information of the fuse body detected by the status detection device, wherein the status information of the fuse body includes: current and temperature of the fuse body; A first processing module is configured to output a prompt message and increase the number of warnings by one when the status information meets a preset warning condition; A second processing module is configured to output a warning message when the number of warnings exceeds a preset number, wherein the warning message is used to remind the user that the current fuse has reached its life limit; a third processing module, configured to determine that the status information satisfies a preset warning condition when the current is greater than a preset current and the temperature is greater than a preset temperature; The fourth processing module is used to output a prompt message when the current is greater than a preset current and the temperature is less than or equal to a preset temperature, and the number of warnings remains unchanged; or, A fifth processing module is configured to output a prompt message when the temperature is greater than a preset temperature and the current is less than or equal to a preset current, and the number of warnings remains unchanged; The sixth processing module is used to send a control signal to the cooling control circuit when the temperature is greater than a preset temperature, and the control signal is used to control the cooling control circuit including the temperature regulating device to be turned on, and the temperature regulating device is in contact with the fuse body.

4. A fuse, characterized in that: include: A fuse body, a state detection device, a cooling control circuit, and a control device as claimed in claim 3; The state detection device is connected to the fuse body and is data-connected to the control device, and is used to detect state information of the fuse body and send it to the control device. The state information of the fuse body includes: the current and temperature of the fuse body; The temperature regulating device in the cooling control circuit is in contact with the fuse body; After the control device acquires the status information, when the status information meets the preset warning condition, the control device outputs a prompt message and increases the warning number by one; when the warning number is greater than the preset number, the control device outputs a warning message, and the warning message is used to remind the user that the current fuse has reached the life limit; wherein, when the current is greater than the preset current and the temperature is greater than the preset temperature, it is determined that the status information meets the preset warning condition; when the current is greater than the preset current and the temperature is less than or equal to the preset temperature, the control device outputs the prompt message and the warning number remains unchanged; or, when the temperature is greater than the preset temperature and the current is less than or equal to the preset current, the control device outputs the prompt message and the warning number remains unchanged; After acquiring the status information, the control device is further used to send a control signal to the cooling control circuit when the temperature is greater than a preset temperature. The control signal is used to control the cooling control circuit including the temperature adjustment device to be turned on.

5. The fuse according to claim 4, characterized in that The state detection device comprises: A current detection device electrically connected to the fuse body and a temperature sensor contact-connected to the fuse body.

6. The fuse according to claim 5, characterized in that The temperature sensor is sleeved on the outer surface of the fuse body and is in contact with and connected to the fuse body.

7. The fuse according to claim 4, characterized in that The cooling control circuit further includes: a control switch, wherein a control end of the control switch is communicatively connected to the control device.

8. A power battery, characterized in that: include: A battery management system and a fuse according to any one of claims 4 to 7, wherein a control device of the fuse is communicatively connected to the battery management system.

9. A vehicle, characterized in that: include: A warning device, a controller area network, and the power battery according to claim 8, wherein the control device or the battery management system in the power battery is communicatively connected to the warning device via the controller area network.

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