Integrated excitation fuse device of magnetic induction current sensor

Abstract

The utility model relates to the field of circuits, in particular to a magnetic induction current sensor integrated excitation fuse device which comprises an excitation fuse, a trigger module, a magnetic induction current sensor module and a shunt module. The excitation fuse comprises an electronic ignition assembly, a piston and a conductive piece. The shunt module is connected in series with the conductive piece; the magnetic induction current sensor module is arranged on a magnetic field path of the conductive piece; the shunt module and the magnetic induction current sensor module are electrically connected with the trigger module respectively and send monitoring current signals to the trigger module respectively; the trigger module is electrically connected with the electronic ignition assembly; when the trigger module judges that the monitored current signal exceeds a set threshold value, the trigger module sends a passive trigger signal to the electronic ignition assembly, the electronic ignition assembly releases high-pressure gas, and the piston is driven to cut off the conductive piece. The magnetic induction current sensor module is not directly connected into a main loop, and the loop resistance is not increased; and the active trigger power supply and the standby power supply are used as backups for each other, thereby improving the working reliability.

Description

Technical Field

[0001] The present invention relates to the fields of circuit detection protection and excitation fuse, and in particular to an excitation fuse device integrated with a magnetic induction current sensor. Background Art

[0002] At present, in the high-voltage protection systems in new energy fields such as electric vehicles, wind-solar energy storage, etc., excitation fuses are used for breaking in short-circuit and special situations, and current sensors (such as magnetic induction current sensors, shunts, etc.) are used for current detection and feedback, which can meet the full-range current measurement and protection of the system. However, the sensor and the excitation fuse respectively perform the functions of current detection and system protection. To further improve the safety of the system, a passive protection method that can respond to overload current or short-circuit current in a timely manner is required, that is, the overload current or short-circuit current detected by a current sensor (such as a magnetic induction current sensor, a shunt, etc.) is used as the input of a trigger signal, so that the excitation fuse can receive an internal instruction and be triggered passively; for example, a variable threshold integrated protection device disclosed in Chinese Patent CN116978735A monitors the current by connecting a shunt in series on a conductive part as the input of the trigger signal. Integrating the shunt on the conductive part of the excitation fuse can achieve real-time monitoring of the current signal of the conductive part and respond in a timely manner. However, it still has certain defects: the easily broken groove of the conductive part where the piston disconnects is spaced apart from the shunt, which makes the structure of the conductive part of the excitation fuse complex to process, and since the easily broken groove of the conductive part and the shunt need to be placed inside the housing respectively, the volume of the excitation fuse increases. At the same time, the current signal monitored by the shunt is single, and when the current signal feedback is slow, the response time of the excitation fuse becomes longer. Summary of the Invention

[0003] The object of the present invention is an excitation fuse device integrated with a magnetic induction current sensor. Through the dual current monitoring and feedback of the magnetic induction current sensor module and the shunt module, the excitation fuse can respond to the trigger signal received first and shorten the response time.

[0004] The technical solution provided by the present invention is a magnetic induction current sensor integrated excitation fuse device, which includes an excitation fuse, a trigger module, a magnetic induction current sensor module, and a shunt module; the excitation fuse includes an electronic ignition component, a piston, and a conductive member; the shunt module is connected in series with the conductive member; the magnetic induction current sensor module is arranged on the magnetic field path of the conductive member; the shunt module and the magnetic induction current sensor module are respectively electrically connected to the trigger module and send monitored current signals to the trigger module respectively; the trigger module is electrically connected to the electronic ignition component; when the trigger module determines that the monitored current signal exceeds the set threshold, the trigger module sends a passive trigger signal to the electronic ignition component, and the electronic ignition component releases high-pressure gas to drive the piston to cut off the conductive member.

[0005] Preferably, the trigger module can feedback the monitored current signal to the control system of the user terminal, and the control system can send an active trigger instruction to the trigger module. The trigger module sends an active trigger signal to the electronic ignition component according to the received active trigger instruction, and the electronic ignition component releases high-pressure gas to drive the piston to cut off the conductive member.

[0006] Preferably, the power supply of the trigger module includes an active trigger power supply and a backup power supply. The active trigger power supply and the backup power supply are electrically connected to the trigger module in a parallel relationship. The active trigger power supply is located outside the magnetic induction current sensor integrated excitation fuse device, and the backup power supply is located inside the magnetic induction current sensor integrated excitation fuse device.

[0007] Preferably, the shunt module includes a shunt and a shunt connector. The shunt is connected in series in the conductive member to form a part of the conductive member that needs to be disconnected. The shunt connector is arranged on one side of the conductive member and outside the displacement path of the piston, and is electrically connected to the conductive member at both ends of the shunt along the length direction of the conductive member. The trigger module is electrically connected to the shunt connector through a connector; the piston is arranged corresponding to the shunt; when the piston is driven, the piston cuts off the conductive member from the shunt.

[0008] Preferably, the magnetic induction current sensor module includes a magnetic induction current sensor and a magnetic induction current sensor connector. The magnetic induction current sensor is arranged around the conductive member in a non-contact manner or arranged on the magnetic field path of the conductive member. The magnetic induction current sensor connector is arranged on the conductive member and is electrically connected to the magnetic induction current sensor. The magnetic induction current sensor connector is electrically connected to the trigger module through a wire harness connector.

[0009] Preferably, the magnetic induction current sensor and the magnetic induction current sensor connector are integrally encapsulated to form the magnetic induction current sensor module, or the magnetic induction current sensor, the magnetic induction current sensor connector and the conductive member are integrally encapsulated.

[0010] Preferably, the trigger module includes a trigger loop, the electronic ignition assembly is set as a group, the electronic ignition assembly is connected in series in the trigger loop, the shunt module and the magnetic induction current sensor module respectively send the monitored current signals to the trigger loop, and the trigger loop responds to the monitored current signal that first exceeds the set threshold value, so that the trigger loop is turned on and a passive trigger signal is sent to the electronic ignition assembly.

[0011] Preferably, the trigger module includes two trigger loops, the electronic ignition assemblies are set as two groups, and each trigger loop is connected in series with a group of electronic ignition assemblies; the shunt module sends the monitored current signal to one of the trigger loops, and the magnetic induction current sensor module sends the monitored current signal to the other trigger loop. When the monitored current signal received by the trigger loop exceeds the set threshold value, the trigger loop is turned on and a passive trigger signal is sent to the electronic ignition assembly connected in series therewith.

[0012] Preferably, an arc extinguishing fuse is connected in parallel on the conductive member, and both ends of the arc extinguishing fuse are conductively connected to both ends of the part of the conductive member to be disconnected; the arc extinguishing fuse is arranged in the arc extinguishing medium filled.

[0013] In the present invention, the magnetic induction current sensor module and the shunt module respectively monitor the current signals, improving the reliability of current monitoring. At the same time, the trigger module can respond to the first received monitored current signal, shortening the response time.

[0014] The magnetic induction current sensor module is arranged around the conductive member in a non-contact manner, rather than being connected to the conductive member and not being connected to the main circuit. Therefore, the loop resistance of the device is not increased additionally, reducing the power consumption. The magnetic induction current sensor module is mainly used for current monitoring and feedback of current data, and giving a passive trigger instruction to the trigger module in case of short circuit, so that the trigger module acts and sends a trigger signal, and the passive protection of the device is realized through the trigger module.

[0015] The shunt module connected in series on the conductive member forms the part of the conductive member to be disconnected, avoiding the additional setting of a weak disconnection point.

[0016] The magnetic induction current sensor module and the shunt module are integrated with connectors, facilitating installation and connection.

[0017] A set of electronic ignition components is used to simultaneously receive the trigger signals sent by two trigger circuits, respond to the trigger signal received first, shorten the response time, and improve the response speed.

[0018] Two sets of electronic ignition components are used to separately receive the trigger signals sent by one trigger circuit, ensuring that when one set of trigger circuits and electronic ignition components fail, the other set of trigger circuits and electronic ignition components can work reliably, improving the working reliability.

[0019] The electronic ignition component can be actuated by receiving an active trigger instruction sent externally to achieve active protection. At the same time, it can be actuated by receiving a passive trigger signal from the inside to achieve passive protection. Through the simultaneous, independent, or sequential emission of the active trigger signal and the passive trigger signal, when they are emitted simultaneously, the trigger module responds to the fastest sent trigger instruction to achieve dual active and passive protection.

[0020] The active trigger power supply and the standby power supply are backup to each other. When the low-voltage circuit (active trigger power supply) loses power, the standby power supply is used to provide power to the trigger module and the energy required to stimulate the trigger action. A capacitor or a battery can be used. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the principle structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of dual-channel current detection.

[0023] Figure 3 It is a schematic diagram of the specific structure in which the shunt module is integrated on the conductive part.

[0024] Reference Signs:

[0025] Conductive part 1, excitation fuse 2, magnetic induction current sensor module 3, trigger module 4, active trigger power supply 6, standby power supply 7, arc extinguishing fuse 8, shunt module 9, shunt 10, shunt connector 11, piston 12, electronic ignition component 21. Detailed Description of the Invention

[0026] The integrated excitation fuse device of the magnetic induction current sensor of the present invention includes an excitation fuse, a trigger module, a magnetic induction current sensor module, and a shunt module; the excitation fuse includes an electronic ignition component, a piston, and a conductive member; the shunt module is connected in series with the conductive member; the magnetic induction current sensor module is arranged on the magnetic field path of the conductive member; the shunt module and the magnetic induction current sensor module are respectively electrically connected to the trigger module and send monitored current signals to the trigger module; the trigger module is electrically connected to the electronic ignition component; when the trigger module determines that the monitored current signal exceeds the set threshold, the trigger module sends a passive trigger signal to the electronic ignition component, and the electronic ignition component releases high-pressure gas to drive the piston to cut off the conductive member.

[0027] See Figure 1 , based on the integrated excitation fuse device of the magnetic induction current sensor: including an excitation fuse 2, a magnetic induction current sensor module 3, a trigger module 4, and a backup power supply 7. The trigger module 4 is respectively connected to the excitation fuse 2, the magnetic induction current sensor module 3, and the backup power supply 7. The magnetic induction current sensor module 3 is used to monitor the current of the conductive member 1 of the excitation fuse 2 in real time and send the monitored current signal to the trigger module 4. The trigger module 4 makes a judgment based on the current signal monitored by the magnetic induction current sensor module 3 received, and judges whether the monitored current signal exceeds the set threshold. When the monitored current signal exceeds the set threshold, the trigger module 4 sends a passive trigger signal to the excitation fuse 2, and the excitation fuse 2 operates to cut off the main circuit. The trigger module 4 can be connected to an external active trigger power supply 6 to provide a working power supply for the trigger module 4. In order to improve the working reliability of the trigger module 4, when the active trigger power supply fails, the backup power supply 7 can provide a working power supply for the trigger module. The working reliability of the trigger module 4 is improved through the backup of the active trigger power supply and the backup power supply.

[0028] The trigger module 4 can also feedback the received monitored current signal to the user terminal, and can also receive an external active trigger instruction, and send an active trigger signal to the excitation fuse 2 according to the received active trigger instruction, so that the excitation fuse 2 operates. By sending a passive trigger signal and an active trigger signal to the excitation fuse 2 through the trigger module 4, the working reliability of the excitation fuse 2 is improved, and the applicable scenarios of the excitation fuse 2 are broadened.

[0029] The excitation fuse 2 includes a housing, a conductive member 1, an electronic ignition assembly 21, a piston 12, and an arc extinguishing melt 8. The conductive member 1 is inserted through the housing, and both ends of the conductive member 1 are located outside the housing of the excitation fuse 2 and can be connected in series with the main circuit. An electronic ignition assembly 21 and a piston 12 are arranged on one side of the conductive member 1 inside the housing, and the piston 12 is arranged corresponding to the conductive member 1. The electronic ignition assembly 21 is a gas generating device, and the electronic ignition assembly 12 is electrically connected to the trigger module 4. The trigger module 4 sends a passive trigger signal or an active trigger signal to the electronic ignition assembly to trigger the electronic ignition assembly to act, release high-pressure gas as a driving force, drive the piston 12 to displace, and cut off the conductive member 1.

[0030] In order to facilitate the quick disconnection of the conductive member 1, a mechanically disconnected weak point is provided at the position on the conductive member 1 where it needs to be cut off, reducing the mechanical strength, so that it can be reliably cut off.

[0031] The arc extinguishing melt 8 is connected in parallel to the outside of both ends of the part of the conductive member 1 that needs to be disconnected inside the housing of the excitation fuse. When the conductive member 1 is disconnected, the current flows through the arc extinguishing melt 8. The resistance of the arc extinguishing melt 8 is much greater than the resistance of the conductive member 1. When the current flows normally, the current flows through the conductive member 1, and the current of the arc extinguishing melt 8 can be ignored. In order to improve the arc extinguishing ability, the arc extinguishing melt 8 is inserted through an arc extinguishing chamber filled with an arc extinguishing medium. When a short circuit or an abnormal condition occurs in the main circuit, the electronic ignition assembly is triggered to release high-pressure gas. The high-pressure gas drives the piston to displace, the piston disconnects the conductive member 1, the current flows through the arc extinguishing melt 8, and then the piston breaks the arc extinguishing melt to achieve zero disconnection of the main circuit. The fracture generated by the disconnection of the arc extinguishing melt is located in the arc extinguishing medium, and the arc extinguishing medium participates in arc extinguishing and can quickly extinguish the arc. In other embodiments, the arc extinguishing melt may not be mechanically disconnected and may be melted by a thermal melting method. In some embodiments, the parallel melt 8 may not be provided either.

[0032] The trigger module 4 includes a control chip, an electronic switch, and a trigger circuit. The active trigger power supply 6, the electronic switch, and the electronic ignition assembly are connected in series in the trigger circuit. A backup power supply 7 is also connected in parallel at the active trigger power supply 6 in the trigger circuit as a backup for the active trigger power supply 6. The backup power supply 7 is a capacitor or a battery. By controlling the opening and closing of the electronic switch by the control chip, the opening and conduction of the trigger circuit are realized, so that the trigger module 4 controls whether to send a trigger signal to the electronic ignition assembly of the excitation fuse. In the initial state and the normal current-carrying state, the electronic switch is in the open state, and the trigger circuit is in the open state. The magnetic induction current sensor module 3 sends the real-time monitored main circuit current signal to the control chip. The control chip compares the received current signal with the set threshold. When an overload or a short circuit occurs in the main circuit and the monitored current signal exceeds the set threshold, the control chip controls the electronic switch to close, the trigger circuit is conducted, and the trigger module 4 sends a trigger signal to the electronic ignition assembly of the excitation fuse to make the electronic ignition assembly act and cut off the main circuit.

[0033] The trigger module 4 is powered by the active trigger power supply 6. To improve reliability, the trigger module 4 is also connected to a backup power supply 7. When the active trigger power supply 6 fails, the backup power supply 7 can be activated to provide electrical energy for the trigger module. The backup power supply 7 can be a capacitor or a battery. The active trigger power supply 6 is located at the client outside the device of the present invention. The backup power supply 7 is located inside the device, and the backup power supply 7 and the active trigger power supply 6 are connected to the trigger module 4 in a parallel relationship.

[0034] The trigger module 4 can receive an active trigger instruction sent by an external control system, control the electronic switch to conduct through the active trigger instruction, make the trigger circuit conduct, and send a trigger signal to the electronic ignition component.

[0035] Therefore, the trigger module 4 can receive a current signal exceeding the set threshold sent by the magnetic induction current sensor module 3 to make the trigger circuit conduct and send a passive trigger signal to the electronic ignition component, or can also make the trigger circuit conduct according to the received active trigger instruction sent externally and send an active trigger signal to the electronic ignition component. The generation of the passive trigger signal only exists when the main circuit current is overloaded or short-circuited, and the generation of the active trigger signal exists when the main circuit current is overloaded, short-circuited or in an abnormal situation. The abnormal situation is set according to the user terminal. For example, when used in a car, fires, car collisions, etc. occur. Through the passive trigger signal and the active trigger signal, the usage scenario of the device is wider and the work is safer and more reliable.

[0036] While the magnetic induction current sensor module 3 controls the trigger module 4 with the current monitoring signal of the main circuit, it can be fed back to the control system of the external user terminal.

[0037] The magnetic induction current sensor module 3 is arranged on the magnetic field path of the conductive part 1 in a non-contact manner. The magnetic induction current sensor module 3 is mainly used for current monitoring of the main circuit and feedback of current data. In this embodiment, one end of the conductive part 1 located outside the excitation fuse monitors the current on the conductive part 1 in real time through a non-contact magnetic induction method with the conductive part 1, and sends the monitored current signal to the control chip of the trigger circuit 4. The control chip compares the received monitored current signal with the set threshold, judges whether it exceeds the threshold, decides whether to control the action of the electronic switch, and at the same time, the control chip feeds back the received monitored current signal to the user terminal control system.

[0038] Specifically, the magnetic induction current sensor module 3 includes a magnetic induction current sensor and a connector. The magnetic induction current sensor is a Hall current detection sensor. The magnetic induction current sensor is arranged on the magnetic field path of the conductive part in a non-contact manner, or arranged around the conductive part in a non-contact manner. The connector is electrically connected to the magnetic induction current sensor and then inserted into the connector through a wire harness connector to be electrically connected to the trigger module 4. The purpose of setting the connector is to facilitate the electrical connection between the magnetic induction current sensor module 3 and the trigger module 4.

[0039] For the convenience of installation, the magnetic induction current sensor and the connector are encapsulated to form the magnetic induction current sensor module 3, and then installed on the conductive part 1. Alternatively, the magnetic induction current sensor, the connector and the conductive part 1 can also be integrally encapsulated. Since the magnetic induction current sensor module 3 is arranged on the conductive part 1 in a non-contact manner, no additional loop resistance of the device is added.

[0040] Figure 1 Working principle of the structure:

[0041] The working states of the excitation fuse device of the present invention include normal operation, passive protection, active protection, and passive protection after low-voltage power loss (active trigger power supply failure).

[0042] During normal operation, the main circuit is in a conducting state, and the main circuit current is monitored in real time through the magnetic induction current sensor module, and the monitored current signal is fed back to the trigger module 4. The trigger module 4 feeds back the monitored current signal received to the control system of the user terminal. The electronic switch of the trigger module 4 is in an open state, and the trigger circuit is not conducting.

[0043] During passive protection, when overload or short circuit occurs in the main circuit, the magnetic induction current sensor sends the monitored current signal to the control chip of the trigger module 4. The control chip of the trigger module 4 judges that the monitored current exceeds the set threshold, then the control chip of the trigger module 4 controls the electronic switch to close, making the trigger circuit conducting, and sending a passive trigger signal to the electronic ignition component of the excitation fuse. The electronic ignition component acts, releases high-pressure gas as the driving force, first breaks the conductive part, and then breaks the arc extinguishing melt, which can realize the cut-off protection of large current and zero current, realize the disconnection of the main circuit, and complete passive protection.

[0044] During active protection, when overload, short circuit or abnormal situation occurs in the main circuit, the control system of the external user terminal issues an active trigger command to control the electronic switch of the trigger module to conduct, making the trigger circuit conducting, and sending an active trigger signal to the electronic ignition component, making the electronic ignition component act to release high-pressure gas as the driving force, first breaks the conductive part, and then breaks the arc extinguishing melt, which can realize the cut-off protection of large current and zero current, realize the disconnection of the main circuit, and complete active protection.

[0045] When there is a low-voltage power loss (actively triggering power supply failure), the active protection fails. At this time, a short circuit or abnormal situation occurs in the main circuit, and the current value monitored by the magnetic induction current sensor reaches the threshold value set for passive protection, triggering the conduction of the trigger module. At this time, the backup power supply provides energy to the trigger module to send a trigger signal, and the electronic ignition component operates. The interruption sequence is consistent with the active protection, completing the passive protection after the low-voltage power loss.

[0046] See Figure 2 and Figure 3 , on the basis of Figure 1 , a shunt module 9 is connected in series on the conductive part 1. The shunt module 9 includes a shunt 10 and a shunt connector 11. The shunt 10 is a resistance shunt. The shunt 10 is connected in series in the conductive part 1 and forms a part of the conductive part 1. In this embodiment, the shunt 10 replaces the part of the conductive part 1 that needs to be disconnected. Since the thickness of the shunt 10 is thinner than that of the conductive part 1, the shunt 10 forms a weak disconnection point with low mechanical strength of the conductive part 1 and is easily disconnected when impacted. Therefore, by using the shunt 10 to replace the part of the conductive part that needs to be disconnected, there is no need to additionally set a weak disconnection point on the conductive part 1. Along the length direction of the conductive part 1, shunt connectors 11 are conductively arranged on the conductive part 1 at both ends of the shunt 10. The shunt connector 11 has a U-shaped structure, and the shunt 10 is located in the U-shaped groove of the shunt connector 11. The piston 12 is arranged corresponding to the shunt 10, and the shunt connector 11 is arranged on the principle of not affecting the displacement of the piston 12. The shunt connector 11 is electrically connected to the trigger module 4 through a wire harness connector. By setting the shunt connector 11, it is convenient to connect the shunt to the trigger module 4. The current on the conductive part 1 is monitored in real time through the shunt 10, and the current information monitored by the shunt 10 in real time is sent to the control chip of the trigger module 4. At the same time, the trigger module 4 feeds back the current signal monitored by the shunt 10 in real time to the control system of the external user terminal.

[0047] The shunt module 9 and the magnetic induction sensor module 3 are backup to each other and both monitor the current in the main circuit. When one of them fails, the other can ensure normal operation, improving the working reliability.

[0048] In Figure 2 , the electronic ignition component can be one group or two groups.

[0049] When the excitation electronic ignition component is one group, the shunt module 9 and the magnetic induction sensor module 3 respectively send the current signals monitored in real time to the trigger module 4. The trigger module responds to the monitored current signal received first and triggers the trigger module at the fastest response speed to send a trigger signal to the electronic ignition component, improving the reliability of the trigger module being triggered to send a trigger signal.

[0050] When there are two sets of excitation electronic ignition components, the trigger module 4 includes two independent trigger circuits. Each trigger circuit is connected to a set of electronic ignition components to provide a trigger signal for the electronic ignition components. The magnetic induction current sensor module 3 provides a monitored current signal for one of the trigger circuits in the trigger module 4, and the shunt module 9 provides a monitored current signal for the other trigger circuit. Each trigger circuit can feedback the monitored current signal to the control system at the user end, and the control system at the user end can send an active trigger instruction to each trigger circuit. Each trigger circuit is connected to an active trigger power supply and a backup power supply. When the main circuit current is overloaded, short-circuited or abnormal, a trigger signal is sent to a set of electronic ignition components respectively.

[0051] Figure 2 The working principle of the technical solution is the same as that of Figure 1 the technical solution.

Claims

1. A magnetic induction current sensor integrated excitation fuse device, characterized in that: It includes an excitation fuse, a trigger module, a magnetic induction current sensor module, and a shunt module; the excitation fuse includes an electronic ignition component, a piston, and a conductive member; the shunt module is connected in series with the conductive member; the magnetic induction current sensor module is arranged on the magnetic field path of the conductive member; the shunt module and the magnetic induction current sensor module are electrically connected to the trigger module respectively, and send monitoring current signals to the trigger module respectively; The trigger module is electrically connected to the electronic ignition component; when the trigger module determines that the monitored current signal exceeds a set threshold, the trigger module sends a passive trigger signal to the electronic ignition component, and the electronic ignition component releases high-pressure gas to drive the piston to cut off the conductive member.

2. The magnetic induction current sensor integrated excitation fuse device according to claim 1, characterized in that: The trigger module can feed back the monitored current signal to the control system at the user end, and the control system can send an active trigger instruction to the trigger module. The trigger module sends an active trigger signal to the electronic ignition component according to the received active trigger instruction, and the electronic ignition component releases high-pressure gas to drive the piston to cut off the conductive part.

3. The magnetic induction current sensor integrated excitation fuse device according to claim 2, characterized in that: The power supply of the trigger module includes an active trigger power supply and a backup power supply, which are electrically connected to the trigger module in parallel. The active trigger power supply is located outside the magnetic induction current sensor integrated excitation fuse device, and the backup power supply is located inside the magnetic induction current sensor integrated excitation fuse device.

4. The magnetic induction current sensor integrated excitation fuse device according to claim 1, characterized in that: The diverter module includes a diverter and a diverter connector. The diverter is connected in series in the conductive part to form a portion of the conductive part that needs to be disconnected. The diverter connector is arranged on one side of the conductive part and is located outside the piston displacement path, and is electrically connected to the conductive parts at both ends of the diverter along the length direction of the conductive part. The trigger module is electrically connected to the diverter connector through a connector; the piston is arranged corresponding to the diverter; when the piston is driven, the piston cuts off the conductive part from the diverter.

5. The magnetic induction current sensor integrated excitation fuse device according to claim 1, characterized in that: The magnetic induction current sensor module includes a magnetic induction current sensor and a magnetic induction current sensor connector. The magnetic induction current sensor is arranged around the conductive member or on the magnetic field path of the conductive member in a non-contact manner. The magnetic induction current sensor connector is arranged on the conductive member and is electrically connected to the magnetic induction current sensor. The magnetic induction current sensor connector is electrically connected to the trigger module through a wiring harness connector.

6. The magnetic induction current sensor integrated excitation fuse device according to claim 5, characterized in that: The magnetic induction current sensor and the magnetic induction current sensor connector are integrally packaged to form the magnetic induction current sensor module, or the magnetic induction current sensor, the magnetic induction current sensor connector and the conductive member are integrally packaged.

7. The magnetic induction current sensor integrated excitation fuse device according to any one of claims 1 to 6, characterized in that: The trigger module includes a trigger circuit, the electronic ignition component is set as a group, the electronic ignition component is connected in series in the trigger circuit, the shunt module and the magnetic induction current sensor module respectively send monitored current signals to the trigger circuit, and the trigger circuit responds to the monitored current signal that exceeds the set threshold received first, so that the trigger circuit is turned on and a passive trigger signal is sent to the electronic ignition component.

8. The magnetic induction current sensor integrated excitation fuse device according to claim 7, characterized in that: The trigger module includes two trigger circuits, the electronic ignition components are arranged in two groups, and each trigger circuit is connected in series with a group of electronic ignition components; the shunt module sends a monitoring current signal to one of the trigger circuits, and the magnetic induction current sensor module sends a monitoring current signal to the other trigger circuit. When the trigger circuit receives the monitoring current signal exceeding a set threshold, the trigger circuit is turned on to send a passive trigger signal to the electronic ignition component connected in series therewith.

9. The magnetic induction current sensor integrated excitation fuse device according to any one of claims 1 to 6 and 8, characterized in that: An arc-extinguishing fuse is connected in parallel to the conductive member, and two ends of the arc-extinguishing fuse are conductively connected to two ends of the portion of the conductive member to be disconnected; the arc-extinguishing fuse is inserted into a medium filled with an arc-extinguishing medium.

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